Merge pull request #1569 from tonistiigi/v0.10.2-picks

[v0.10] cherry-picks for v0.10.2

.github/workflows/build.yml

@@ -21,12 +21,14 @@ on:
       - 'docs/**'
 
 env:
+  BUILDX_VERSION: "v0.10.0"
+  BUILDKIT_IMAGE: "moby/buildkit:v0.11.1"
   REPO_SLUG: "docker/buildx-bin"
   DESTDIR: "./bin"
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       -
         name: Checkout
@@ -35,7 +37,9 @@ jobs:
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
         with:
-          version: latest
+          version: ${{ env.BUILDX_VERSION }}
+          driver-opts: image=${{ env.BUILDKIT_IMAGE }}
+          buildkitd-flags: --debug
       -
         name: Test
         uses: docker/bake-action@v2
@@ -51,7 +55,7 @@ jobs:
           directory: ${{ env.DESTDIR }}/coverage
 
   prepare:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     outputs:
       matrix: ${{ steps.platforms.outputs.matrix }}
     steps:
@@ -62,14 +66,14 @@ jobs:
         name: Create matrix
         id: platforms
         run: |
-          echo ::set-output name=matrix::$(docker buildx bake binaries-cross --print | jq -cr '.target."binaries-cross".platforms')
+          echo "matrix=$(docker buildx bake binaries-cross --print | jq -cr '.target."binaries-cross".platforms')" >>${GITHUB_OUTPUT}
       -
         name: Show matrix
         run: |
           echo ${{ steps.platforms.outputs.matrix }}
 
   binaries:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     needs:
       - prepare
     strategy:
@@ -92,26 +96,27 @@ jobs:
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
         with:
-          version: latest
+          version: ${{ env.BUILDX_VERSION }}
+          driver-opts: image=${{ env.BUILDKIT_IMAGE }}
+          buildkitd-flags: --debug
       -
         name: Build
-        uses: docker/bake-action@v2
-        with:
-          targets: release
-          set: |
-            *.platform=${{ matrix.platform }}
-            *.cache-from=type=gha,scope=binaries-${{ env.PLATFORM_PAIR }}
-            *.cache-to=type=gha,scope=binaries-${{ env.PLATFORM_PAIR }},mode=max
+        run: |
+          make release
+        env:
+          PLATFORMS: ${{ matrix.platform }}
+          CACHE_FROM: type=gha,scope=binaries-${{ env.PLATFORM_PAIR }}
+          CACHE_TO: type=gha,scope=binaries-${{ env.PLATFORM_PAIR }},mode=max
       -
         name: Upload artifacts
         uses: actions/upload-artifact@v3
         with:
           name: buildx
-          path: ${{ env.DESTDIR }}/release/*
+          path: ${{ env.DESTDIR }}/*
           if-no-files-found: error
 
   bin-image:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     if: ${{ github.event_name != 'pull_request' }}
     steps:
       -
@@ -124,7 +129,9 @@ jobs:
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
         with:
-          version: latest
+          version: ${{ env.BUILDX_VERSION }}
+          driver-opts: image=${{ env.BUILDKIT_IMAGE }}
+          buildkitd-flags: --debug
       -
         name: Docker meta
         id: meta
@@ -156,9 +163,11 @@ jobs:
           set: |
             *.cache-from=type=gha,scope=bin-image
             *.cache-to=type=gha,scope=bin-image,mode=max
+            *.attest=type=sbom
+            *.attest=type=provenance,mode=max,builder-id=https://github.com/${{ env.GITHUB_REPOSITORY }}/actions/runs/${{ env.GITHUB_RUN_ID }}
 
   release:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     needs:
       - binaries
     steps:
@@ -193,7 +202,7 @@ jobs:
           files: ${{ env.DESTDIR }}/*
 
   buildkit-edge:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     continue-on-error: true
     steps:
       -
@@ -206,7 +215,7 @@ jobs:
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
         with:
-          version: latest
+          version: ${{ env.BUILDX_VERSION }}
           driver-opts: image=moby/buildkit:master
           buildkitd-flags: --debug
       -

.github/workflows/docs-release.yml

@@ -2,11 +2,13 @@ name: docs-release
 
 on:
   release:
-    types: [ released ]
+    types:
+      - released
 
 jobs:
   open-pr:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
+    if: "!github.event.release.prerelease"
     steps:
       -
         name: Checkout docs repo

.github/workflows/docs-upstream.yml

@@ -22,7 +22,7 @@ on:
 
 jobs:
   docs-yaml:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       -
         name: Checkout

.github/workflows/e2e.yml

@@ -20,10 +20,11 @@ on:
 
 env:
   DESTDIR: "./bin"
+  K3S_VERSION: "v1.21.2-k3s1"
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -133,20 +134,67 @@ jobs:
       -
         name: Install k3s
         if: matrix.driver == 'kubernetes'
-        uses: debianmaster/actions-k3s@b9cf3f599fd118699a3c8a0d18a2f2bda6cf4ce4
-        id: k3s
+        uses: actions/github-script@v6
         with:
-          version: v1.21.2-k3s1
+          script: |
+            const fs = require('fs');
+            
+            let wait = function(milliseconds) {
+              return new Promise((resolve, reject) => {
+                if (typeof(milliseconds) !== 'number') { 
+                  throw new Error('milleseconds not a number'); 
+                }
+                setTimeout(() => resolve("done!"), milliseconds)
+              });
+            }
+            
+            try {
+              const kubeconfig="/tmp/buildkit-k3s/kubeconfig.yaml";
+              core.info(`storing kubeconfig in ${kubeconfig}`);
+          
+              await exec.exec('docker', ["run", "-d",
+                "--privileged",
+                "--name=buildkit-k3s",
+                "-e", "K3S_KUBECONFIG_OUTPUT="+kubeconfig,
+                "-e", "K3S_KUBECONFIG_MODE=666",
+                "-v", "/tmp/buildkit-k3s:/tmp/buildkit-k3s",
+                "-p", "6443:6443",
+                "-p", "80:80",
+                "-p", "443:443",
+                "-p", "8080:8080",
+                "rancher/k3s:${{ env.K3S_VERSION }}", "server"
+              ]);
+              await wait(10000);
+              
+              core.exportVariable('KUBECONFIG', kubeconfig);
+              
+              let nodeName;
+              for (let count = 1; count <= 5; count++) {
+                try {
+                  const nodeNameOutput = await exec.getExecOutput("kubectl get nodes --no-headers -oname");
+                  nodeName = nodeNameOutput.stdout
+                } catch (error) {
+                  core.info(`Unable to resolve node name (${error.message}). Attempt ${count} of 5.`)
+                } finally {
+                  if (nodeName) {
+                    break;
+                  }
+                  await wait(5000);
+                }
+              }
+              if (!nodeName) {
+                throw new Error(`Unable to resolve node name after 5 attempts.`);
+              }
+              
+              await exec.exec(`kubectl wait --for=condition=Ready ${nodeName}`);
+            } catch (error) {
+              core.setFailed(error.message);
+            }
       -
-        name: Config k3s
+        name: Print KUBECONFIG
         if: matrix.driver == 'kubernetes'
         run: |
-          (set -x ; cat ${{ steps.k3s.outputs.kubeconfig }})
-      -
-        name: Check k3s nodes
-        if: matrix.driver == 'kubernetes'
-        run: |
-          kubectl get nodes
+          yq ${{ env.KUBECONFIG }}
       -
         name: Launch remote buildkitd
         if: matrix.driver == 'remote'

.github/workflows/validate.yml

@@ -19,7 +19,7 @@ on:
 
 jobs:
   validate:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:

Dockerfile

@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.4
+# syntax=docker/dockerfile-upstream:1.5.0
 
 ARG GO_VERSION=1.19
 ARG XX_VERSION=1.1.2
@@ -58,6 +58,8 @@ FROM scratch AS binaries-windows
 COPY --link --from=buildx-build /usr/bin/docker-buildx /buildx.exe
 
 FROM binaries-$TARGETOS AS binaries
+# enable scanning for this stage
+ARG BUILDKIT_SBOM_SCAN_STAGE=true
 
 # Release
 FROM --platform=$BUILDPLATFORM alpine AS releaser

README.md

@@ -2,7 +2,7 @@
 
 [![GitHub release](https://img.shields.io/github/release/docker/buildx.svg?style=flat-square)](https://github.com/docker/buildx/releases/latest)
 [![PkgGoDev](https://img.shields.io/badge/go.dev-docs-007d9c?style=flat-square&logo=go&logoColor=white)](https://pkg.go.dev/github.com/docker/buildx)
-[![Build Status](https://img.shields.io/github/workflow/status/docker/buildx/build?label=build&logo=github&style=flat-square)](https://github.com/docker/buildx/actions?query=workflow%3Abuild)
+[![Build Status](https://img.shields.io/github/actions/workflow/status/docker/buildx/build.yml?branch=master&label=build&logo=github&style=flat-square)](https://github.com/docker/buildx/actions?query=workflow%3Abuild)
 [![Go Report Card](https://goreportcard.com/badge/github.com/docker/buildx?style=flat-square)](https://goreportcard.com/report/github.com/docker/buildx)
 [![codecov](https://img.shields.io/codecov/c/github/docker/buildx?logo=codecov&style=flat-square)](https://codecov.io/gh/docker/buildx)
 
@@ -147,7 +147,7 @@ To remove this alias, run [`docker buildx uninstall`](docs/reference/buildx_unin
 # Buildx 0.6+
 $ docker buildx bake "https://github.com/docker/buildx.git"
 $ mkdir -p ~/.docker/cli-plugins
-$ mv ./bin/buildx ~/.docker/cli-plugins/docker-buildx
+$ mv ./bin/build/buildx ~/.docker/cli-plugins/docker-buildx
 
 # Docker 19.03+
 $ DOCKER_BUILDKIT=1 docker build --platform=local -o . "https://github.com/docker/buildx.git"

bake/bake.go

@@ -140,6 +140,19 @@ func ReadTargets(ctx context.Context, files []File, targets, overrides []string,
 		}
 	}
 
+	// Propagate SOURCE_DATE_EPOCH from the client env.
+	// The logic is purposely duplicated from `build/build`.go for keeping this visible in `bake --print`.
+	if v := os.Getenv("SOURCE_DATE_EPOCH"); v != "" {
+		for _, f := range m {
+			if f.Args == nil {
+				f.Args = make(map[string]*string)
+			}
+			if _, ok := f.Args["SOURCE_DATE_EPOCH"]; !ok {
+				f.Args["SOURCE_DATE_EPOCH"] = &v
+			}
+		}
+	}
+
 	return m, n, nil
 }
 
@@ -559,24 +572,24 @@ type Target struct {
 	Attest   []string `json:"attest,omitempty" hcl:"attest,optional" cty:"attest"`
 	Inherits []string `json:"inherits,omitempty" hcl:"inherits,optional" cty:"inherits"`
 
-	Context          *string           `json:"context,omitempty" hcl:"context,optional" cty:"context"`
-	Contexts         map[string]string `json:"contexts,omitempty" hcl:"contexts,optional" cty:"contexts"`
-	Dockerfile       *string           `json:"dockerfile,omitempty" hcl:"dockerfile,optional" cty:"dockerfile"`
-	DockerfileInline *string           `json:"dockerfile-inline,omitempty" hcl:"dockerfile-inline,optional" cty:"dockerfile-inline"`
-	Args             map[string]string `json:"args,omitempty" hcl:"args,optional" cty:"args"`
-	Labels           map[string]string `json:"labels,omitempty" hcl:"labels,optional" cty:"labels"`
-	Tags             []string          `json:"tags,omitempty" hcl:"tags,optional" cty:"tags"`
-	CacheFrom        []string          `json:"cache-from,omitempty"  hcl:"cache-from,optional" cty:"cache-from"`
-	CacheTo          []string          `json:"cache-to,omitempty"  hcl:"cache-to,optional" cty:"cache-to"`
-	Target           *string           `json:"target,omitempty" hcl:"target,optional" cty:"target"`
-	Secrets          []string          `json:"secret,omitempty" hcl:"secret,optional" cty:"secret"`
-	SSH              []string          `json:"ssh,omitempty" hcl:"ssh,optional" cty:"ssh"`
-	Platforms        []string          `json:"platforms,omitempty" hcl:"platforms,optional" cty:"platforms"`
-	Outputs          []string          `json:"output,omitempty" hcl:"output,optional" cty:"output"`
-	Pull             *bool             `json:"pull,omitempty" hcl:"pull,optional" cty:"pull"`
-	NoCache          *bool             `json:"no-cache,omitempty" hcl:"no-cache,optional" cty:"no-cache"`
-	NetworkMode      *string           `json:"-" hcl:"-" cty:"-"`
-	NoCacheFilter    []string          `json:"no-cache-filter,omitempty" hcl:"no-cache-filter,optional" cty:"no-cache-filter"`
+	Context          *string            `json:"context,omitempty" hcl:"context,optional" cty:"context"`
+	Contexts         map[string]string  `json:"contexts,omitempty" hcl:"contexts,optional" cty:"contexts"`
+	Dockerfile       *string            `json:"dockerfile,omitempty" hcl:"dockerfile,optional" cty:"dockerfile"`
+	DockerfileInline *string            `json:"dockerfile-inline,omitempty" hcl:"dockerfile-inline,optional" cty:"dockerfile-inline"`
+	Args             map[string]*string `json:"args,omitempty" hcl:"args,optional" cty:"args"`
+	Labels           map[string]*string `json:"labels,omitempty" hcl:"labels,optional" cty:"labels"`
+	Tags             []string           `json:"tags,omitempty" hcl:"tags,optional" cty:"tags"`
+	CacheFrom        []string           `json:"cache-from,omitempty"  hcl:"cache-from,optional" cty:"cache-from"`
+	CacheTo          []string           `json:"cache-to,omitempty"  hcl:"cache-to,optional" cty:"cache-to"`
+	Target           *string            `json:"target,omitempty" hcl:"target,optional" cty:"target"`
+	Secrets          []string           `json:"secret,omitempty" hcl:"secret,optional" cty:"secret"`
+	SSH              []string           `json:"ssh,omitempty" hcl:"ssh,optional" cty:"ssh"`
+	Platforms        []string           `json:"platforms,omitempty" hcl:"platforms,optional" cty:"platforms"`
+	Outputs          []string           `json:"output,omitempty" hcl:"output,optional" cty:"output"`
+	Pull             *bool              `json:"pull,omitempty" hcl:"pull,optional" cty:"pull"`
+	NoCache          *bool              `json:"no-cache,omitempty" hcl:"no-cache,optional" cty:"no-cache"`
+	NetworkMode      *string            `json:"-" hcl:"-" cty:"-"`
+	NoCacheFilter    []string           `json:"no-cache-filter,omitempty" hcl:"no-cache-filter,optional" cty:"no-cache-filter"`
 	// IMPORTANT: if you add more fields here, do not forget to update newOverrides and docs/manuals/bake/file-definition.md.
 
 	// linked is a private field to mark a target used as a linked one
@@ -615,8 +628,11 @@ func (t *Target) Merge(t2 *Target) {
 		t.DockerfileInline = t2.DockerfileInline
 	}
 	for k, v := range t2.Args {
+		if v == nil {
+			continue
+		}
 		if t.Args == nil {
-			t.Args = map[string]string{}
+			t.Args = map[string]*string{}
 		}
 		t.Args[k] = v
 	}
@@ -627,8 +643,11 @@ func (t *Target) Merge(t2 *Target) {
 		t.Contexts[k] = v
 	}
 	for k, v := range t2.Labels {
+		if v == nil {
+			continue
+		}
 		if t.Labels == nil {
-			t.Labels = map[string]string{}
+			t.Labels = map[string]*string{}
 		}
 		t.Labels[k] = v
 	}
@@ -688,9 +707,9 @@ func (t *Target) AddOverrides(overrides map[string]Override) error {
 				return errors.Errorf("args require name")
 			}
 			if t.Args == nil {
-				t.Args = map[string]string{}
+				t.Args = map[string]*string{}
 			}
-			t.Args[keys[1]] = value
+			t.Args[keys[1]] = &value
 		case "contexts":
 			if len(keys) != 2 {
 				return errors.Errorf("contexts require name")
@@ -704,9 +723,9 @@ func (t *Target) AddOverrides(overrides map[string]Override) error {
 				return errors.Errorf("labels require name")
 			}
 			if t.Labels == nil {
-				t.Labels = map[string]string{}
+				t.Labels = map[string]*string{}
 			}
-			t.Labels[keys[1]] = value
+			t.Labels[keys[1]] = &value
 		case "tags":
 			t.Tags = o.ArrValue
 		case "cache-from":
@@ -882,6 +901,22 @@ func toBuildOpt(t *Target, inp *Input) (*build.Options, error) {
 		dockerfilePath = path.Join(contextPath, dockerfilePath)
 	}
 
+	args := map[string]string{}
+	for k, v := range t.Args {
+		if v == nil {
+			continue
+		}
+		args[k] = *v
+	}
+
+	labels := map[string]string{}
+	for k, v := range t.Labels {
+		if v == nil {
+			continue
+		}
+		labels[k] = *v
+	}
+
 	noCache := false
 	if t.NoCache != nil {
 		noCache = *t.NoCache
@@ -922,8 +957,8 @@ func toBuildOpt(t *Target, inp *Input) (*build.Options, error) {
 	bo := &build.Options{
 		Inputs:        bi,
 		Tags:          t.Tags,
-		BuildArgs:     t.Args,
-		Labels:        t.Labels,
+		BuildArgs:     args,
+		Labels:        labels,
 		NoCache:       noCache,
 		NoCacheFilter: t.NoCacheFilter,
 		Pull:          pull,

bake/bake_test.go

@@ -2,7 +2,6 @@ package bake
 
 import (
 	"context"
-	"os"
 	"sort"
 	"strings"
 	"testing"
@@ -42,7 +41,7 @@ target "webapp" {
 
 		require.Equal(t, "Dockerfile.webapp", *m["webapp"].Dockerfile)
 		require.Equal(t, ".", *m["webapp"].Context)
-		require.Equal(t, "webDEP", m["webapp"].Args["VAR_INHERITED"])
+		require.Equal(t, ptrstr("webDEP"), m["webapp"].Args["VAR_INHERITED"])
 		require.Equal(t, true, *m["webapp"].NoCache)
 		require.Nil(t, m["webapp"].Pull)
 
@@ -58,8 +57,7 @@ target "webapp" {
 
 	t.Run("ArgsOverrides", func(t *testing.T) {
 		t.Run("leaf", func(t *testing.T) {
-			os.Setenv("VAR_FROMENV"+t.Name(), "fromEnv")
-			defer os.Unsetenv("VAR_FROM_ENV" + t.Name())
+			t.Setenv("VAR_FROMENV"+t.Name(), "fromEnv")
 
 			m, g, err := ReadTargets(ctx, []File{fp}, []string{"webapp"}, []string{
 				"webapp.args.VAR_UNSET",
@@ -80,12 +78,12 @@ target "webapp" {
 			_, isSet = m["webapp"].Args["VAR_EMPTY"]
 			require.True(t, isSet, m["webapp"].Args["VAR_EMPTY"])
 
-			require.Equal(t, m["webapp"].Args["VAR_SET"], "bananas")
+			require.Equal(t, ptrstr("bananas"), m["webapp"].Args["VAR_SET"])
 
-			require.Equal(t, m["webapp"].Args["VAR_FROMENV"+t.Name()], "fromEnv")
+			require.Equal(t, ptrstr("fromEnv"), m["webapp"].Args["VAR_FROMENV"+t.Name()])
 
-			require.Equal(t, m["webapp"].Args["VAR_BOTH"], "webapp")
-			require.Equal(t, m["webapp"].Args["VAR_INHERITED"], "override")
+			require.Equal(t, ptrstr("webapp"), m["webapp"].Args["VAR_BOTH"])
+			require.Equal(t, ptrstr("override"), m["webapp"].Args["VAR_INHERITED"])
 
 			require.Equal(t, 1, len(g))
 			require.Equal(t, []string{"webapp"}, g["default"].Targets)
@@ -99,8 +97,8 @@ target "webapp" {
 			}, nil)
 
 			require.NoError(t, err)
-			require.Equal(t, m["webapp"].Args["VAR_INHERITED"], "override")
-			require.Equal(t, m["webapp"].Args["VAR_BOTH"], "webapp")
+			require.Equal(t, ptrstr("override"), m["webapp"].Args["VAR_INHERITED"])
+			require.Equal(t, ptrstr("webapp"), m["webapp"].Args["VAR_BOTH"])
 			require.Equal(t, 1, len(g))
 			require.Equal(t, []string{"webapp"}, g["default"].Targets)
 		})
@@ -139,9 +137,9 @@ target "webapp" {
 			require.NoError(t, err)
 			require.Equal(t, 2, len(m))
 			require.Equal(t, "foo", *m["webapp"].Dockerfile)
-			require.Equal(t, "webDEP", m["webapp"].Args["VAR_INHERITED"])
+			require.Equal(t, ptrstr("webDEP"), m["webapp"].Args["VAR_INHERITED"])
 			require.Equal(t, "foo", *m["webDEP"].Dockerfile)
-			require.Equal(t, "webDEP", m["webDEP"].Args["VAR_INHERITED"])
+			require.Equal(t, ptrstr("webDEP"), m["webDEP"].Args["VAR_INHERITED"])
 			require.Equal(t, 1, len(g))
 			sort.Strings(g["default"].Targets)
 			require.Equal(t, []string{"webDEP", "webapp"}, g["default"].Targets)
@@ -173,7 +171,7 @@ target "webapp" {
 					require.NoError(t, err)
 					require.Equal(t, 1, len(m))
 					require.Equal(t, "foo", *m["webapp"].Dockerfile)
-					require.Equal(t, "webDEP", m["webapp"].Args["VAR_INHERITED"])
+					require.Equal(t, ptrstr("webDEP"), m["webapp"].Args["VAR_INHERITED"])
 					require.Equal(t, 1, len(g))
 					require.Equal(t, []string{"webapp"}, g["default"].Targets)
 				},
@@ -300,8 +298,8 @@ services:
 	require.True(t, ok)
 	require.Equal(t, "Dockerfile.webapp", *m["webapp"].Dockerfile)
 	require.Equal(t, ".", *m["webapp"].Context)
-	require.Equal(t, "1", m["webapp"].Args["buildno"])
-	require.Equal(t, "12", m["webapp"].Args["buildno2"])
+	require.Equal(t, ptrstr("1"), m["webapp"].Args["buildno"])
+	require.Equal(t, ptrstr("12"), m["webapp"].Args["buildno2"])
 
 	require.Equal(t, 1, len(g))
 	sort.Strings(g["default"].Targets)
@@ -344,7 +342,7 @@ services:
 	_, ok := m["web_app"]
 	require.True(t, ok)
 	require.Equal(t, "Dockerfile.webapp", *m["web_app"].Dockerfile)
-	require.Equal(t, "1", m["web_app"].Args["buildno"])
+	require.Equal(t, ptrstr("1"), m["web_app"].Args["buildno"])
 
 	m, _, err = ReadTargets(ctx, []File{fp2}, []string{"web_app"}, nil, nil)
 	require.NoError(t, err)
@@ -352,7 +350,7 @@ services:
 	_, ok = m["web_app"]
 	require.True(t, ok)
 	require.Equal(t, "Dockerfile", *m["web_app"].Dockerfile)
-	require.Equal(t, "12", m["web_app"].Args["buildno2"])
+	require.Equal(t, ptrstr("12"), m["web_app"].Args["buildno2"])
 
 	m, g, err := ReadTargets(ctx, []File{fp, fp2}, []string{"default"}, nil, nil)
 	require.NoError(t, err)
@@ -361,8 +359,8 @@ services:
 	require.True(t, ok)
 	require.Equal(t, "Dockerfile.webapp", *m["web_app"].Dockerfile)
 	require.Equal(t, ".", *m["web_app"].Context)
-	require.Equal(t, "1", m["web_app"].Args["buildno"])
-	require.Equal(t, "12", m["web_app"].Args["buildno2"])
+	require.Equal(t, ptrstr("1"), m["web_app"].Args["buildno"])
+	require.Equal(t, ptrstr("12"), m["web_app"].Args["buildno2"])
 
 	require.Equal(t, 1, len(g))
 	sort.Strings(g["default"].Targets)
@@ -999,22 +997,22 @@ target "d" {
 	cases := []struct {
 		name      string
 		overrides []string
-		want      map[string]string
+		want      map[string]*string
 	}{
 		{
 			name:      "nested simple",
 			overrides: nil,
-			want:      map[string]string{"bar": "234", "baz": "890", "foo": "123"},
+			want:      map[string]*string{"bar": ptrstr("234"), "baz": ptrstr("890"), "foo": ptrstr("123")},
 		},
 		{
 			name:      "nested with overrides first",
 			overrides: []string{"a.args.foo=321", "b.args.bar=432"},
-			want:      map[string]string{"bar": "234", "baz": "890", "foo": "321"},
+			want:      map[string]*string{"bar": ptrstr("234"), "baz": ptrstr("890"), "foo": ptrstr("321")},
 		},
 		{
 			name:      "nested with overrides last",
 			overrides: []string{"a.args.foo=321", "c.args.bar=432"},
-			want:      map[string]string{"bar": "432", "baz": "890", "foo": "321"},
+			want:      map[string]*string{"bar": ptrstr("432"), "baz": ptrstr("890"), "foo": ptrstr("321")},
 		},
 	}
 	for _, tt := range cases {
@@ -1067,26 +1065,26 @@ group "default" {
 	cases := []struct {
 		name      string
 		overrides []string
-		wantch1   map[string]string
-		wantch2   map[string]string
+		wantch1   map[string]*string
+		wantch2   map[string]*string
 	}{
 		{
 			name:      "nested simple",
 			overrides: nil,
-			wantch1:   map[string]string{"BAR": "fuu", "FOO": "bar"},
-			wantch2:   map[string]string{"BAR": "fuu", "FOO": "bar", "FOO2": "bar2"},
+			wantch1:   map[string]*string{"BAR": ptrstr("fuu"), "FOO": ptrstr("bar")},
+			wantch2:   map[string]*string{"BAR": ptrstr("fuu"), "FOO": ptrstr("bar"), "FOO2": ptrstr("bar2")},
 		},
 		{
 			name:      "nested with overrides first",
 			overrides: []string{"grandparent.args.BAR=fii", "child1.args.FOO=baaar"},
-			wantch1:   map[string]string{"BAR": "fii", "FOO": "baaar"},
-			wantch2:   map[string]string{"BAR": "fii", "FOO": "bar", "FOO2": "bar2"},
+			wantch1:   map[string]*string{"BAR": ptrstr("fii"), "FOO": ptrstr("baaar")},
+			wantch2:   map[string]*string{"BAR": ptrstr("fii"), "FOO": ptrstr("bar"), "FOO2": ptrstr("bar2")},
 		},
 		{
 			name:      "nested with overrides last",
 			overrides: []string{"grandparent.args.BAR=fii", "child2.args.FOO=baaar"},
-			wantch1:   map[string]string{"BAR": "fii", "FOO": "bar"},
-			wantch2:   map[string]string{"BAR": "fii", "FOO": "baaar", "FOO2": "bar2"},
+			wantch1:   map[string]*string{"BAR": ptrstr("fii"), "FOO": ptrstr("bar")},
+			wantch2:   map[string]*string{"BAR": ptrstr("fii"), "FOO": ptrstr("baaar"), "FOO2": ptrstr("bar2")},
 		},
 	}
 	for _, tt := range cases {
@@ -1285,8 +1283,78 @@ services:
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, "app", c.Targets[0].Name)
-	require.Equal(t, "foo", c.Targets[0].Args["v1"])
-	require.Equal(t, "bar", c.Targets[0].Args["v2"])
+	require.Equal(t, ptrstr("foo"), c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("bar"), c.Targets[0].Args["v2"])
 	require.Equal(t, "dir", *c.Targets[0].Context)
 	require.Equal(t, "Dockerfile-alternate", *c.Targets[0].Dockerfile)
 }
+
+func TestHCLNullVars(t *testing.T) {
+	fp := File{
+		Name: "docker-bake.hcl",
+		Data: []byte(
+			`variable "FOO" {
+				default = null
+			}
+			variable "BAR" {
+				default = null
+			}
+			target "default" {
+				args = {
+					foo = FOO
+					bar = "baz"
+				}
+				labels = {
+					"com.docker.app.bar" = BAR
+					"com.docker.app.baz" = "foo"
+				}
+			}`),
+	}
+
+	ctx := context.TODO()
+	m, _, err := ReadTargets(ctx, []File{fp}, []string{"default"}, nil, nil)
+	require.NoError(t, err)
+
+	require.Equal(t, 1, len(m))
+	_, ok := m["default"]
+	require.True(t, ok)
+
+	_, err = TargetsToBuildOpt(m, &Input{})
+	require.NoError(t, err)
+	require.Equal(t, map[string]*string{"bar": ptrstr("baz")}, m["default"].Args)
+	require.Equal(t, map[string]*string{"com.docker.app.baz": ptrstr("foo")}, m["default"].Labels)
+}
+
+func TestJSONNullVars(t *testing.T) {
+	fp := File{
+		Name: "docker-bake.json",
+		Data: []byte(
+			`{
+				"variable": {
+					"FOO": {
+						"default": null
+					}
+				},
+				"target": {
+					"default": {
+						"args": {
+							"foo": "${FOO}",
+							"bar": "baz"
+						}
+					}
+				}
+			}`),
+	}
+
+	ctx := context.TODO()
+	m, _, err := ReadTargets(ctx, []File{fp}, []string{"default"}, nil, nil)
+	require.NoError(t, err)
+
+	require.Equal(t, 1, len(m))
+	_, ok := m["default"]
+	require.True(t, ok)
+
+	_, err = TargetsToBuildOpt(m, &Input{})
+	require.NoError(t, err)
+	require.Equal(t, map[string]*string{"bar": ptrstr("baz")}, m["default"].Args)
+}

bake/compose.go

@@ -75,13 +75,19 @@ func ParseCompose(cfgs []compose.ConfigFile, envs map[string]string) (*Config, e
 				secrets = append(secrets, secret)
 			}
 
+			// compose does not support nil values for labels
+			labels := map[string]*string{}
+			for k, v := range s.Build.Labels {
+				labels[k] = &v
+			}
+
 			g.Targets = append(g.Targets, targetName)
 			t := &Target{
 				Name:       targetName,
 				Context:    contextPathP,
 				Dockerfile: dockerfilePathP,
 				Tags:       s.Build.Tags,
-				Labels:     s.Build.Labels,
+				Labels:     labels,
 				Args: flatten(s.Build.Args.Resolve(func(val string) (string, bool) {
 					if val, ok := s.Environment[val]; ok && val != nil {
 						return *val, true
@@ -193,16 +199,16 @@ func loadDotEnv(curenv map[string]string, workingDir string) (map[string]string,
 	return curenv, nil
 }
 
-func flatten(in compose.MappingWithEquals) compose.Mapping {
+func flatten(in compose.MappingWithEquals) map[string]*string {
 	if len(in) == 0 {
 		return nil
 	}
-	out := compose.Mapping{}
+	out := map[string]*string{}
 	for k, v := range in {
 		if v == nil {
 			continue
 		}
-		out[k] = *v
+		out[k] = v
 	}
 	return out
 }

bake/compose_test.go

@@ -60,7 +60,7 @@ secrets:
 	require.Equal(t, "./dir", *c.Targets[1].Context)
 	require.Equal(t, "Dockerfile-alternate", *c.Targets[1].Dockerfile)
 	require.Equal(t, 1, len(c.Targets[1].Args))
-	require.Equal(t, "123", c.Targets[1].Args["buildno"])
+	require.Equal(t, ptrstr("123"), c.Targets[1].Args["buildno"])
 	require.Equal(t, []string{"type=local,src=path/to/cache"}, c.Targets[1].CacheFrom)
 	require.Equal(t, []string{"type=local,dest=path/to/cache"}, c.Targets[1].CacheTo)
 	require.Equal(t, "none", *c.Targets[1].NetworkMode)
@@ -149,18 +149,15 @@ services:
         BRB: FOO
 `)
 
-	os.Setenv("FOO", "bar")
-	defer os.Unsetenv("FOO")
-	os.Setenv("BAR", "foo")
-	defer os.Unsetenv("BAR")
-	os.Setenv("ZZZ_BAR", "zzz_foo")
-	defer os.Unsetenv("ZZZ_BAR")
+	t.Setenv("FOO", "bar")
+	t.Setenv("BAR", "foo")
+	t.Setenv("ZZZ_BAR", "zzz_foo")
 
 	c, err := ParseCompose([]compose.ConfigFile{{Content: dt}}, sliceToMap(os.Environ()))
 	require.NoError(t, err)
-	require.Equal(t, "bar", c.Targets[0].Args["FOO"])
-	require.Equal(t, "zzz_foo", c.Targets[0].Args["BAR"])
-	require.Equal(t, "FOO", c.Targets[0].Args["BRB"])
+	require.Equal(t, ptrstr("bar"), c.Targets[0].Args["FOO"])
+	require.Equal(t, ptrstr("zzz_foo"), c.Targets[0].Args["BAR"])
+	require.Equal(t, ptrstr("FOO"), c.Targets[0].Args["BRB"])
 }
 
 func TestInconsistentComposeFile(t *testing.T) {
@@ -308,7 +305,7 @@ services:
 	sort.Slice(c.Targets, func(i, j int) bool {
 		return c.Targets[i].Name < c.Targets[j].Name
 	})
-	require.Equal(t, map[string]string{"CT_ECR": "foo", "CT_TAG": "bar"}, c.Targets[0].Args)
+	require.Equal(t, map[string]*string{"CT_ECR": ptrstr("foo"), "CT_TAG": ptrstr("bar")}, c.Targets[0].Args)
 	require.Equal(t, []string{"ct-addon:baz", "ct-addon:foo", "ct-addon:alp"}, c.Targets[0].Tags)
 	require.Equal(t, []string{"linux/amd64", "linux/arm64"}, c.Targets[0].Platforms)
 	require.Equal(t, []string{"user/app:cache", "type=local,src=path/to/cache"}, c.Targets[0].CacheFrom)
@@ -381,7 +378,7 @@ services:
 
 	c, err := ParseCompose([]compose.ConfigFile{{Content: dt}}, nil)
 	require.NoError(t, err)
-	require.Equal(t, map[string]string{"CT_ECR": "foo", "FOO": "bsdf -csdf", "NODE_ENV": "test"}, c.Targets[0].Args)
+	require.Equal(t, map[string]*string{"CT_ECR": ptrstr("foo"), "FOO": ptrstr("bsdf -csdf"), "NODE_ENV": ptrstr("test")}, c.Targets[0].Args)
 }
 
 func TestDotEnv(t *testing.T) {
@@ -405,7 +402,7 @@ services:
 		Data: dt,
 	}})
 	require.NoError(t, err)
-	require.Equal(t, map[string]string{"FOO": "bar"}, c.Targets[0].Args)
+	require.Equal(t, map[string]*string{"FOO": ptrstr("bar")}, c.Targets[0].Args)
 }
 
 func TestPorts(t *testing.T) {
@@ -629,6 +626,22 @@ target "default" {
 	}
 }
 
+func TestComposeNullArgs(t *testing.T) {
+	var dt = []byte(`
+services:
+  scratch:
+    build:
+     context: .
+     args:
+        FOO: null
+        bar: "baz"
+`)
+
+	c, err := ParseCompose([]compose.ConfigFile{{Content: dt}}, nil)
+	require.NoError(t, err)
+	require.Equal(t, map[string]*string{"bar": ptrstr("baz")}, c.Targets[0].Args)
+}
+
 // chdir changes the current working directory to the named directory,
 // and then restore the original working directory at the end of the test.
 func chdir(t *testing.T, dir string) {

bake/hcl_test.go

@@ -1,7 +1,7 @@
 package bake
 
 import (
-	"os"
+	"reflect"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -54,7 +54,7 @@ func TestHCLBasic(t *testing.T) {
 
 	require.Equal(t, c.Targets[1].Name, "webapp")
 	require.Equal(t, 1, len(c.Targets[1].Args))
-	require.Equal(t, "123", c.Targets[1].Args["buildno"])
+	require.Equal(t, ptrstr("123"), c.Targets[1].Args["buildno"])
 
 	require.Equal(t, c.Targets[2].Name, "cross")
 	require.Equal(t, 2, len(c.Targets[2].Platforms))
@@ -62,7 +62,7 @@ func TestHCLBasic(t *testing.T) {
 
 	require.Equal(t, c.Targets[3].Name, "webapp-plus")
 	require.Equal(t, 1, len(c.Targets[3].Args))
-	require.Equal(t, map[string]string{"IAMCROSS": "true"}, c.Targets[3].Args)
+	require.Equal(t, map[string]*string{"IAMCROSS": ptrstr("true")}, c.Targets[3].Args)
 }
 
 func TestHCLBasicInJSON(t *testing.T) {
@@ -114,7 +114,7 @@ func TestHCLBasicInJSON(t *testing.T) {
 
 	require.Equal(t, c.Targets[1].Name, "webapp")
 	require.Equal(t, 1, len(c.Targets[1].Args))
-	require.Equal(t, "123", c.Targets[1].Args["buildno"])
+	require.Equal(t, ptrstr("123"), c.Targets[1].Args["buildno"])
 
 	require.Equal(t, c.Targets[2].Name, "cross")
 	require.Equal(t, 2, len(c.Targets[2].Platforms))
@@ -122,7 +122,7 @@ func TestHCLBasicInJSON(t *testing.T) {
 
 	require.Equal(t, c.Targets[3].Name, "webapp-plus")
 	require.Equal(t, 1, len(c.Targets[3].Args))
-	require.Equal(t, map[string]string{"IAMCROSS": "true"}, c.Targets[3].Args)
+	require.Equal(t, map[string]*string{"IAMCROSS": ptrstr("true")}, c.Targets[3].Args)
 }
 
 func TestHCLWithFunctions(t *testing.T) {
@@ -147,7 +147,7 @@ func TestHCLWithFunctions(t *testing.T) {
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "webapp")
-	require.Equal(t, "124", c.Targets[0].Args["buildno"])
+	require.Equal(t, ptrstr("124"), c.Targets[0].Args["buildno"])
 }
 
 func TestHCLWithUserDefinedFunctions(t *testing.T) {
@@ -177,7 +177,7 @@ func TestHCLWithUserDefinedFunctions(t *testing.T) {
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "webapp")
-	require.Equal(t, "124", c.Targets[0].Args["buildno"])
+	require.Equal(t, ptrstr("124"), c.Targets[0].Args["buildno"])
 }
 
 func TestHCLWithVariables(t *testing.T) {
@@ -206,9 +206,9 @@ func TestHCLWithVariables(t *testing.T) {
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "webapp")
-	require.Equal(t, "123", c.Targets[0].Args["buildno"])
+	require.Equal(t, ptrstr("123"), c.Targets[0].Args["buildno"])
 
-	os.Setenv("BUILD_NUMBER", "456")
+	t.Setenv("BUILD_NUMBER", "456")
 
 	c, err = ParseFile(dt, "docker-bake.hcl")
 	require.NoError(t, err)
@@ -219,7 +219,7 @@ func TestHCLWithVariables(t *testing.T) {
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "webapp")
-	require.Equal(t, "456", c.Targets[0].Args["buildno"])
+	require.Equal(t, ptrstr("456"), c.Targets[0].Args["buildno"])
 }
 
 func TestHCLWithVariablesInFunctions(t *testing.T) {
@@ -244,7 +244,7 @@ func TestHCLWithVariablesInFunctions(t *testing.T) {
 	require.Equal(t, c.Targets[0].Name, "webapp")
 	require.Equal(t, []string{"user/repo:v1"}, c.Targets[0].Tags)
 
-	os.Setenv("REPO", "docker/buildx")
+	t.Setenv("REPO", "docker/buildx")
 
 	c, err = ParseFile(dt, "docker-bake.hcl")
 	require.NoError(t, err)
@@ -280,10 +280,10 @@ func TestHCLMultiFileSharedVariables(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "pre-abc", c.Targets[0].Args["v1"])
-	require.Equal(t, "abc-post", c.Targets[0].Args["v2"])
+	require.Equal(t, ptrstr("pre-abc"), c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("abc-post"), c.Targets[0].Args["v2"])
 
-	os.Setenv("FOO", "def")
+	t.Setenv("FOO", "def")
 
 	c, err = ParseFiles([]File{
 		{Data: dt, Name: "c1.hcl"},
@@ -293,12 +293,11 @@ func TestHCLMultiFileSharedVariables(t *testing.T) {
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "pre-def", c.Targets[0].Args["v1"])
-	require.Equal(t, "def-post", c.Targets[0].Args["v2"])
+	require.Equal(t, ptrstr("pre-def"), c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("def-post"), c.Targets[0].Args["v2"])
 }
 
 func TestHCLVarsWithVars(t *testing.T) {
-	os.Unsetenv("FOO")
 	dt := []byte(`
 		variable "FOO" {
 			default = upper("${BASE}def")
@@ -330,10 +329,10 @@ func TestHCLVarsWithVars(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "pre--ABCDEF-", c.Targets[0].Args["v1"])
-	require.Equal(t, "ABCDEF-post", c.Targets[0].Args["v2"])
+	require.Equal(t, ptrstr("pre--ABCDEF-"), c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("ABCDEF-post"), c.Targets[0].Args["v2"])
 
-	os.Setenv("BASE", "new")
+	t.Setenv("BASE", "new")
 
 	c, err = ParseFiles([]File{
 		{Data: dt, Name: "c1.hcl"},
@@ -343,12 +342,11 @@ func TestHCLVarsWithVars(t *testing.T) {
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "pre--NEWDEF-", c.Targets[0].Args["v1"])
-	require.Equal(t, "NEWDEF-post", c.Targets[0].Args["v2"])
+	require.Equal(t, ptrstr("pre--NEWDEF-"), c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("NEWDEF-post"), c.Targets[0].Args["v2"])
 }
 
 func TestHCLTypedVariables(t *testing.T) {
-	os.Unsetenv("FOO")
 	dt := []byte(`
 		variable "FOO" {
 			default = 3
@@ -369,33 +367,80 @@ func TestHCLTypedVariables(t *testing.T) {
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "lower", c.Targets[0].Args["v1"])
-	require.Equal(t, "yes", c.Targets[0].Args["v2"])
+	require.Equal(t, ptrstr("lower"), c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("yes"), c.Targets[0].Args["v2"])
 
-	os.Setenv("FOO", "5.1")
-	os.Setenv("IS_FOO", "0")
+	t.Setenv("FOO", "5.1")
+	t.Setenv("IS_FOO", "0")
 
 	c, err = ParseFile(dt, "docker-bake.hcl")
 	require.NoError(t, err)
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "higher", c.Targets[0].Args["v1"])
-	require.Equal(t, "no", c.Targets[0].Args["v2"])
+	require.Equal(t, ptrstr("higher"), c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("no"), c.Targets[0].Args["v2"])
 
-	os.Setenv("FOO", "NaN")
+	t.Setenv("FOO", "NaN")
 	_, err = ParseFile(dt, "docker-bake.hcl")
 	require.Error(t, err)
 	require.Contains(t, err.Error(), "failed to parse FOO as number")
 
-	os.Setenv("FOO", "0")
-	os.Setenv("IS_FOO", "maybe")
+	t.Setenv("FOO", "0")
+	t.Setenv("IS_FOO", "maybe")
 
 	_, err = ParseFile(dt, "docker-bake.hcl")
 	require.Error(t, err)
 	require.Contains(t, err.Error(), "failed to parse IS_FOO as bool")
 }
 
+func TestHCLNullVariables(t *testing.T) {
+	dt := []byte(`
+		variable "FOO" {
+			default = null
+		}
+		target "default" {
+			args = {
+				foo = FOO
+			}
+		}`)
+
+	c, err := ParseFile(dt, "docker-bake.hcl")
+	require.NoError(t, err)
+	require.Equal(t, ptrstr(nil), c.Targets[0].Args["foo"])
+
+	t.Setenv("FOO", "bar")
+	c, err = ParseFile(dt, "docker-bake.hcl")
+	require.NoError(t, err)
+	require.Equal(t, ptrstr("bar"), c.Targets[0].Args["foo"])
+}
+
+func TestJSONNullVariables(t *testing.T) {
+	dt := []byte(`{
+		"variable": {
+			"FOO": {
+				"default": null
+			}
+		},
+		"target": {
+			"default": {
+				"args": {
+					"foo": "${FOO}"
+				}
+			}
+		}
+	}`)
+
+	c, err := ParseFile(dt, "docker-bake.json")
+	require.NoError(t, err)
+	require.Equal(t, ptrstr(nil), c.Targets[0].Args["foo"])
+
+	t.Setenv("FOO", "bar")
+	c, err = ParseFile(dt, "docker-bake.json")
+	require.NoError(t, err)
+	require.Equal(t, ptrstr("bar"), c.Targets[0].Args["foo"])
+}
+
 func TestHCLVariableCycle(t *testing.T) {
 	dt := []byte(`
 		variable "FOO" {
@@ -431,16 +476,16 @@ func TestHCLAttrs(t *testing.T) {
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "attr-abcdef", c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("attr-abcdef"), c.Targets[0].Args["v1"])
 
 	// env does not apply if no variable
-	os.Setenv("FOO", "bar")
+	t.Setenv("FOO", "bar")
 	c, err = ParseFile(dt, "docker-bake.hcl")
 	require.NoError(t, err)
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "attr-abcdef", c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("attr-abcdef"), c.Targets[0].Args["v1"])
 	// attr-multifile
 }
 
@@ -549,11 +594,10 @@ func TestHCLAttrsCustomType(t *testing.T) {
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
 	require.Equal(t, []string{"linux/arm64", "linux/amd64"}, c.Targets[0].Platforms)
-	require.Equal(t, "linux/arm64", c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("linux/arm64"), c.Targets[0].Args["v1"])
 }
 
 func TestHCLMultiFileAttrs(t *testing.T) {
-	os.Unsetenv("FOO")
 	dt := []byte(`
 		variable "FOO" {
 			default = "abc"
@@ -575,9 +619,9 @@ func TestHCLMultiFileAttrs(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "pre-def", c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("pre-def"), c.Targets[0].Args["v1"])
 
-	os.Setenv("FOO", "ghi")
+	t.Setenv("FOO", "ghi")
 
 	c, err = ParseFiles([]File{
 		{Data: dt, Name: "c1.hcl"},
@@ -587,7 +631,7 @@ func TestHCLMultiFileAttrs(t *testing.T) {
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "pre-ghi", c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("pre-ghi"), c.Targets[0].Args["v1"])
 }
 
 func TestJSONAttributes(t *testing.T) {
@@ -598,7 +642,7 @@ func TestJSONAttributes(t *testing.T) {
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "pre-abc-def", c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("pre-abc-def"), c.Targets[0].Args["v1"])
 }
 
 func TestJSONFunctions(t *testing.T) {
@@ -623,7 +667,7 @@ func TestJSONFunctions(t *testing.T) {
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "pre-<FOO-abc>", c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("pre-<FOO-abc>"), c.Targets[0].Args["v1"])
 }
 
 func TestHCLFunctionInAttr(t *testing.T) {
@@ -651,7 +695,7 @@ func TestHCLFunctionInAttr(t *testing.T) {
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "FOO <> [baz]", c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("FOO <> [baz]"), c.Targets[0].Args["v1"])
 }
 
 func TestHCLCombineCompose(t *testing.T) {
@@ -682,8 +726,8 @@ services:
 
 	require.Equal(t, 1, len(c.Targets))
 	require.Equal(t, c.Targets[0].Name, "app")
-	require.Equal(t, "foo", c.Targets[0].Args["v1"])
-	require.Equal(t, "bar", c.Targets[0].Args["v2"])
+	require.Equal(t, ptrstr("foo"), c.Targets[0].Args["v1"])
+	require.Equal(t, ptrstr("bar"), c.Targets[0].Args["v2"])
 	require.Equal(t, "dir", *c.Targets[0].Context)
 	require.Equal(t, "Dockerfile-alternate", *c.Targets[0].Dockerfile)
 }
@@ -828,10 +872,10 @@ target "two" {
 	require.Equal(t, 2, len(c.Targets))
 
 	require.Equal(t, c.Targets[0].Name, "one")
-	require.Equal(t, map[string]string{"a": "pre-ghi-jkl"}, c.Targets[0].Args)
+	require.Equal(t, map[string]*string{"a": ptrstr("pre-ghi-jkl")}, c.Targets[0].Args)
 
 	require.Equal(t, c.Targets[1].Name, "two")
-	require.Equal(t, map[string]string{"b": "pre-jkl"}, c.Targets[1].Args)
+	require.Equal(t, map[string]*string{"b": ptrstr("pre-jkl")}, c.Targets[1].Args)
 }
 
 func TestEmptyVariableJSON(t *testing.T) {
@@ -882,3 +926,12 @@ func TestVarUnsupportedType(t *testing.T) {
 	_, err := ParseFile(dt, "docker-bake.hcl")
 	require.Error(t, err)
 }
+
+func ptrstr(s interface{}) *string {
+	var n *string = nil
+	if reflect.ValueOf(s).Kind() == reflect.String {
+		ss := s.(string)
+		n = &ss
+	}
+	return n
+}

bake/hclparser/expr.go

@@ -83,7 +83,7 @@ func appendJSONFuncCalls(exp hcl.Expression, m map[string]struct{}) error {
 
 	// hcl/v2/json/ast#stringVal
 	val := src.FieldByName("Value")
-	if val.IsZero() {
+	if !val.IsValid() || val.IsZero() {
 		return nil
 	}
 	rng := src.FieldByName("SrcRange")

bake/hclparser/hclparser.go

@@ -281,19 +281,16 @@ func (p *parser) resolveValue(name string) (err error) {
 	_, isVar := p.vars[name]
 
 	if envv, ok := p.opt.LookupVar(name); ok && isVar {
-		if vv.Type().Equals(cty.Bool) {
+		switch {
+		case vv.Type().Equals(cty.Bool):
 			b, err := strconv.ParseBool(envv)
 			if err != nil {
 				return errors.Wrapf(err, "failed to parse %s as bool", name)
 			}
-			vv := cty.BoolVal(b)
-			v = &vv
-			return nil
-		} else if vv.Type().Equals(cty.String) {
-			vv := cty.StringVal(envv)
-			v = &vv
-			return nil
-		} else if vv.Type().Equals(cty.Number) {
+			vv = cty.BoolVal(b)
+		case vv.Type().Equals(cty.String), vv.Type().Equals(cty.DynamicPseudoType):
+			vv = cty.StringVal(envv)
+		case vv.Type().Equals(cty.Number):
 			n, err := strconv.ParseFloat(envv, 64)
 			if err == nil && (math.IsNaN(n) || math.IsInf(n, 0)) {
 				err = errors.Errorf("invalid number value")
@@ -301,10 +298,8 @@ func (p *parser) resolveValue(name string) (err error) {
 			if err != nil {
 				return errors.Wrapf(err, "failed to parse %s as number", name)
 			}
-			vv := cty.NumberVal(big.NewFloat(n))
-			v = &vv
-			return nil
-		} else {
+			vv = cty.NumberVal(big.NewFloat(n))
+		default:
 			// TODO: support lists with csv values
 			return errors.Errorf("unsupported type %s for variable %s", vv.Type().FriendlyName(), name)
 		}

build/build.go

@@ -6,6 +6,7 @@ import (
 	"context"
 	"crypto/rand"
 	_ "crypto/sha256" // ensure digests can be computed
+	"encoding/base64"
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
@@ -36,9 +37,10 @@ import (
 	"github.com/docker/docker/pkg/jsonmessage"
 	"github.com/moby/buildkit/client"
 	"github.com/moby/buildkit/client/llb"
+	"github.com/moby/buildkit/client/ociindex"
 	"github.com/moby/buildkit/exporter/containerimage/exptypes"
-	"github.com/moby/buildkit/frontend/attestations"
 	gateway "github.com/moby/buildkit/frontend/gateway/client"
+	"github.com/moby/buildkit/identity"
 	"github.com/moby/buildkit/session"
 	"github.com/moby/buildkit/session/upload/uploadprovider"
 	"github.com/moby/buildkit/solver/errdefs"
@@ -227,7 +229,9 @@ func resolveDrivers(ctx context.Context, nodes []builder.Node, opt map[string]Op
 
 		func(i int, c *client.Client) {
 			eg.Go(func() error {
-				clients[i].Build(ctx, client.SolveOpt{}, "buildx", func(ctx context.Context, c gateway.Client) (*gateway.Result, error) {
+				clients[i].Build(ctx, client.SolveOpt{
+					Internal: true,
+				}, "buildx", func(ctx context.Context, c gateway.Client) (*gateway.Result, error) {
 					bopts[i] = c.BuildOpts()
 					return nil, nil
 				}, nil)
@@ -446,6 +450,25 @@ func toSolveOpt(ctx context.Context, node builder.Node, multiDriver bool, opt Op
 		so.FrontendAttrs["multi-platform"] = "true"
 	}
 
+	attests := make(map[string]string)
+	for k, v := range opt.Attests {
+		if v != nil {
+			attests[k] = *v
+		}
+	}
+	supportsAttestations := bopts.LLBCaps.Contains(apicaps.CapID("exporter.image.attestations"))
+	if len(attests) > 0 {
+		if !supportsAttestations {
+			return nil, nil, errors.Errorf("attestations are not supported by the current buildkitd")
+		}
+		for k, v := range attests {
+			so.FrontendAttrs[k] = v
+		}
+	}
+	if _, ok := opt.Attests["attest:provenance"]; !ok && supportsAttestations {
+		so.FrontendAttrs["attest:provenance"] = "mode=min,inline-only=true"
+	}
+
 	switch len(opt.Exports) {
 	case 1:
 		// valid
@@ -503,7 +526,7 @@ func toSolveOpt(ctx context.Context, node builder.Node, multiDriver bool, opt Op
 			return nil, nil, notSupported(nodeDriver, driver.OCIExporter)
 		}
 		if e.Type == "docker" {
-			if len(opt.Platforms) > 1 {
+			if len(opt.Platforms) > 1 || len(attests) > 0 {
 				return nil, nil, errors.Errorf("docker exporter does not currently support exporting manifest lists")
 			}
 			if e.Output == nil {
@@ -580,23 +603,11 @@ func toSolveOpt(ctx context.Context, node builder.Node, multiDriver bool, opt Op
 		}
 	}
 
-	if len(opt.Attests) > 0 {
-		if !bopts.LLBCaps.Contains(apicaps.CapID("exporter.image.attestations")) {
-			return nil, nil, errors.Errorf("attestations are not supported by the current buildkitd")
+	// Propagate SOURCE_DATE_EPOCH from the client env
+	if v := os.Getenv("SOURCE_DATE_EPOCH"); v != "" {
+		if _, ok := so.FrontendAttrs["build-arg:SOURCE_DATE_EPOCH"]; !ok {
+			so.FrontendAttrs["build-arg:SOURCE_DATE_EPOCH"] = v
 		}
-		for k, v := range opt.Attests {
-			if v == nil {
-				continue
-			}
-			so.FrontendAttrs[k] = *v
-		}
-	}
-	if _, ok := opt.Attests["attest:provenance"]; !ok {
-		so.FrontendAttrs["attest:provenance"] = "mode=min,inline-only=true"
-	}
-
-	for k, v := range getGitAttributes(ctx, opt.Inputs.ContextPath, opt.Inputs.DockerfilePath) {
-		so.FrontendAttrs[k] = v
 	}
 
 	// set platforms
@@ -853,6 +864,10 @@ func BuildWithResultHandler(ctx context.Context, nodes []builder.Node, opt map[s
 	for k, opt := range opt {
 		multiDriver := len(m[k]) > 1
 		hasMobyDriver := false
+		gitattrs, err := getGitAttributes(ctx, opt.Inputs.ContextPath, opt.Inputs.DockerfilePath)
+		if err != nil {
+			logrus.Warn(err)
+		}
 		for i, np := range m[k] {
 			node := nodes[np.driverIndex]
 			if node.Driver.IsMobyDriver() {
@@ -865,6 +880,9 @@ func BuildWithResultHandler(ctx context.Context, nodes []builder.Node, opt map[s
 			if err != nil {
 				return nil, err
 			}
+			for k, v := range gitattrs {
+				so.FrontendAttrs[k] = v
+			}
 			defers = append(defers, release)
 			m[k][i].so = so
 		}
@@ -935,26 +953,190 @@ func BuildWithResultHandler(ctx context.Context, nodes []builder.Node, opt map[s
 			if multiTarget {
 				span, ctx = tracing.StartSpan(ctx, k)
 			}
+			baseCtx := ctx
 
 			res := make([]*client.SolveResponse, len(dps))
-			wg := &sync.WaitGroup{}
-			wg.Add(len(dps))
+			eg2, ctx := errgroup.WithContext(ctx)
 
 			var pushNames string
 			var insecurePush bool
 
+			for i, dp := range dps {
+				i, dp, so := i, dp, *dp.so
+				if multiDriver {
+					for i, e := range so.Exports {
+						switch e.Type {
+						case "oci", "tar":
+							return errors.Errorf("%s for multi-node builds currently not supported", e.Type)
+						case "image":
+							if pushNames == "" && e.Attrs["push"] != "" {
+								if ok, _ := strconv.ParseBool(e.Attrs["push"]); ok {
+									pushNames = e.Attrs["name"]
+									if pushNames == "" {
+										return errors.Errorf("tag is needed when pushing to registry")
+									}
+									names, err := toRepoOnly(e.Attrs["name"])
+									if err != nil {
+										return err
+									}
+									if ok, _ := strconv.ParseBool(e.Attrs["registry.insecure"]); ok {
+										insecurePush = true
+									}
+									e.Attrs["name"] = names
+									e.Attrs["push-by-digest"] = "true"
+									so.Exports[i].Attrs = e.Attrs
+								}
+							}
+						}
+					}
+				}
+
+				pw := progress.WithPrefix(w, k, multiTarget)
+
+				c := clients[dp.driverIndex]
+				eg2.Go(func() error {
+					pw = progress.ResetTime(pw)
+
+					if err := waitContextDeps(ctx, dp.driverIndex, results, &so); err != nil {
+						return err
+					}
+
+					frontendInputs := make(map[string]*pb.Definition)
+					for key, st := range so.FrontendInputs {
+						def, err := st.Marshal(ctx)
+						if err != nil {
+							return err
+						}
+						frontendInputs[key] = def.ToPB()
+					}
+
+					req := gateway.SolveRequest{
+						Frontend:       so.Frontend,
+						FrontendInputs: frontendInputs,
+						FrontendOpt:    make(map[string]string),
+					}
+					for k, v := range so.FrontendAttrs {
+						req.FrontendOpt[k] = v
+					}
+					so.Frontend = ""
+					so.FrontendInputs = nil
+
+					ch, done := progress.NewChannel(pw)
+					defer func() { <-done }()
+
+					cc := c
+					var printRes map[string][]byte
+					rr, err := c.Build(ctx, so, "buildx", func(ctx context.Context, c gateway.Client) (*gateway.Result, error) {
+						var isFallback bool
+						var origErr error
+						for {
+							if opt.PrintFunc != nil {
+								if _, ok := req.FrontendOpt["frontend.caps"]; !ok {
+									req.FrontendOpt["frontend.caps"] = "moby.buildkit.frontend.subrequests+forward"
+								} else {
+									req.FrontendOpt["frontend.caps"] += ",moby.buildkit.frontend.subrequests+forward"
+								}
+								req.FrontendOpt["requestid"] = "frontend." + opt.PrintFunc.Name
+								if isFallback {
+									req.FrontendOpt["build-arg:BUILDKIT_SYNTAX"] = printFallbackImage
+								}
+							}
+							res, err := c.Solve(ctx, req)
+							if err != nil {
+								if origErr != nil {
+									return nil, err
+								}
+								var reqErr *errdefs.UnsupportedSubrequestError
+								if !isFallback {
+									if errors.As(err, &reqErr) {
+										switch reqErr.Name {
+										case "frontend.outline", "frontend.targets":
+											isFallback = true
+											origErr = err
+											continue
+										}
+										return nil, err
+									}
+									// buildkit v0.8 vendored in Docker 20.10 does not support typed errors
+									if strings.Contains(err.Error(), "unsupported request frontend.outline") || strings.Contains(err.Error(), "unsupported request frontend.targets") {
+										isFallback = true
+										origErr = err
+										continue
+									}
+								}
+								return nil, err
+							}
+							if opt.PrintFunc != nil {
+								printRes = res.Metadata
+							}
+							results.Set(resultKey(dp.driverIndex, k), res)
+							if resultHandleFunc != nil {
+								resultHandleFunc(dp.driverIndex, &ResultContext{cc, res})
+							}
+							return res, nil
+						}
+					}, ch)
+					if err != nil {
+						return err
+					}
+					res[i] = rr
+
+					if rr.ExporterResponse == nil {
+						rr.ExporterResponse = map[string]string{}
+					}
+					for k, v := range printRes {
+						rr.ExporterResponse[k] = string(v)
+					}
+
+					node := nodes[dp.driverIndex].Driver
+					if node.IsMobyDriver() {
+						for _, e := range so.Exports {
+							if e.Type == "moby" && e.Attrs["push"] != "" {
+								if ok, _ := strconv.ParseBool(e.Attrs["push"]); ok {
+									pushNames = e.Attrs["name"]
+									if pushNames == "" {
+										return errors.Errorf("tag is needed when pushing to registry")
+									}
+									pw := progress.ResetTime(pw)
+									pushList := strings.Split(pushNames, ",")
+									for _, name := range pushList {
+										if err := progress.Wrap(fmt.Sprintf("pushing %s with docker", name), pw.Write, func(l progress.SubLogger) error {
+											return pushWithMoby(ctx, node, name, l)
+										}); err != nil {
+											return err
+										}
+									}
+									remoteDigest, err := remoteDigestWithMoby(ctx, node, pushList[0])
+									if err == nil && remoteDigest != "" {
+										// old daemons might not have containerimage.config.digest set
+										// in response so use containerimage.digest value for it if available
+										if _, ok := rr.ExporterResponse[exptypes.ExporterImageConfigDigestKey]; !ok {
+											if v, ok := rr.ExporterResponse[exptypes.ExporterImageDigestKey]; ok {
+												rr.ExporterResponse[exptypes.ExporterImageConfigDigestKey] = v
+											}
+										}
+										rr.ExporterResponse[exptypes.ExporterImageDigestKey] = remoteDigest
+									} else if err != nil {
+										return err
+									}
+								}
+							}
+						}
+					}
+					return nil
+				})
+			}
+
 			eg.Go(func() (err error) {
+				ctx := baseCtx
 				defer func() {
 					if span != nil {
 						tracing.FinishWithError(span, err)
 					}
 				}()
 				pw := progress.WithPrefix(w, "default", false)
-				wg.Wait()
-				select {
-				case <-ctx.Done():
-					return ctx.Err()
-				default:
+				if err := eg2.Wait(); err != nil {
+					return err
 				}
 
 				respMu.Lock()
@@ -976,7 +1158,24 @@ func BuildWithResultHandler(ctx context.Context, nodes []builder.Node, opt map[s
 						descs := make([]specs.Descriptor, 0, len(res))
 
 						for _, r := range res {
-							s, ok := r.ExporterResponse[exptypes.ExporterImageDigestKey]
+							s, ok := r.ExporterResponse[exptypes.ExporterImageDescriptorKey]
+							if ok {
+								dt, err := base64.StdEncoding.DecodeString(s)
+								if err != nil {
+									return err
+								}
+								var desc specs.Descriptor
+								if err := json.Unmarshal(dt, &desc); err != nil {
+									return errors.Wrapf(err, "failed to unmarshal descriptor %s", s)
+								}
+								descs = append(descs, desc)
+								continue
+							}
+							// This is fallback for some very old buildkit versions.
+							// Note that the mediatype isn't really correct as most of the time it is image manifest and
+							// not manifest list but actually both are handled because for Docker mediatypes the
+							// mediatype value in the Accpet header does not seem to matter.
+							s, ok = r.ExporterResponse[exptypes.ExporterImageDigestKey]
 							if ok {
 								descs = append(descs, specs.Descriptor{
 									Digest:    digest.Digest(s),
@@ -1060,174 +1259,6 @@ func BuildWithResultHandler(ctx context.Context, nodes []builder.Node, opt map[s
 				return nil
 			})
 
-			for i, dp := range dps {
-				so := *dp.so
-				if multiDriver {
-					for i, e := range so.Exports {
-						switch e.Type {
-						case "oci", "tar":
-							return errors.Errorf("%s for multi-node builds currently not supported", e.Type)
-						case "image":
-							if pushNames == "" && e.Attrs["push"] != "" {
-								if ok, _ := strconv.ParseBool(e.Attrs["push"]); ok {
-									pushNames = e.Attrs["name"]
-									if pushNames == "" {
-										return errors.Errorf("tag is needed when pushing to registry")
-									}
-									names, err := toRepoOnly(e.Attrs["name"])
-									if err != nil {
-										return err
-									}
-									if ok, _ := strconv.ParseBool(e.Attrs["registry.insecure"]); ok {
-										insecurePush = true
-									}
-									e.Attrs["name"] = names
-									e.Attrs["push-by-digest"] = "true"
-									so.Exports[i].Attrs = e.Attrs
-								}
-							}
-						}
-					}
-				}
-
-				func(i int, dp driverPair, so client.SolveOpt) {
-					pw := progress.WithPrefix(w, k, multiTarget)
-
-					c := clients[dp.driverIndex]
-					eg.Go(func() error {
-						pw = progress.ResetTime(pw)
-						defer wg.Done()
-
-						if err := waitContextDeps(ctx, dp.driverIndex, results, &so); err != nil {
-							return err
-						}
-
-						frontendInputs := make(map[string]*pb.Definition)
-						for key, st := range so.FrontendInputs {
-							def, err := st.Marshal(ctx)
-							if err != nil {
-								return err
-							}
-							frontendInputs[key] = def.ToPB()
-						}
-
-						req := gateway.SolveRequest{
-							Frontend:       so.Frontend,
-							FrontendOpt:    so.FrontendAttrs,
-							FrontendInputs: frontendInputs,
-						}
-						so.Frontend = ""
-						so.FrontendAttrs = attestations.Filter(so.FrontendAttrs)
-						so.FrontendInputs = nil
-
-						ch, done := progress.NewChannel(pw)
-						defer func() { <-done }()
-
-						cc := c
-						var printRes map[string][]byte
-						rr, err := c.Build(ctx, so, "buildx", func(ctx context.Context, c gateway.Client) (*gateway.Result, error) {
-							var isFallback bool
-							var origErr error
-							for {
-								if opt.PrintFunc != nil {
-									if _, ok := req.FrontendOpt["frontend.caps"]; !ok {
-										req.FrontendOpt["frontend.caps"] = "moby.buildkit.frontend.subrequests+forward"
-									} else {
-										req.FrontendOpt["frontend.caps"] += ",moby.buildkit.frontend.subrequests+forward"
-									}
-									req.FrontendOpt["requestid"] = "frontend." + opt.PrintFunc.Name
-									if isFallback {
-										req.FrontendOpt["build-arg:BUILDKIT_SYNTAX"] = printFallbackImage
-									}
-								}
-								res, err := c.Solve(ctx, req)
-								if err != nil {
-									if origErr != nil {
-										return nil, err
-									}
-									var reqErr *errdefs.UnsupportedSubrequestError
-									if !isFallback {
-										if errors.As(err, &reqErr) {
-											switch reqErr.Name {
-											case "frontend.outline", "frontend.targets":
-												isFallback = true
-												origErr = err
-												continue
-											}
-											return nil, err
-										}
-										// buildkit v0.8 vendored in Docker 20.10 does not support typed errors
-										if strings.Contains(err.Error(), "unsupported request frontend.outline") || strings.Contains(err.Error(), "unsupported request frontend.targets") {
-											isFallback = true
-											origErr = err
-											continue
-										}
-									}
-									return nil, err
-								}
-								if opt.PrintFunc != nil {
-									printRes = res.Metadata
-								}
-								results.Set(resultKey(dp.driverIndex, k), res)
-								if resultHandleFunc != nil {
-									resultHandleFunc(dp.driverIndex, &ResultContext{cc, res})
-								}
-								return res, nil
-							}
-						}, ch)
-						if err != nil {
-							return err
-						}
-						res[i] = rr
-
-						if rr.ExporterResponse == nil {
-							rr.ExporterResponse = map[string]string{}
-						}
-						for k, v := range printRes {
-							rr.ExporterResponse[k] = string(v)
-						}
-
-						node := nodes[dp.driverIndex].Driver
-						if node.IsMobyDriver() {
-							for _, e := range so.Exports {
-								if e.Type == "moby" && e.Attrs["push"] != "" {
-									if ok, _ := strconv.ParseBool(e.Attrs["push"]); ok {
-										pushNames = e.Attrs["name"]
-										if pushNames == "" {
-											return errors.Errorf("tag is needed when pushing to registry")
-										}
-										pw := progress.ResetTime(pw)
-										pushList := strings.Split(pushNames, ",")
-										for _, name := range pushList {
-											if err := progress.Wrap(fmt.Sprintf("pushing %s with docker", name), pw.Write, func(l progress.SubLogger) error {
-												return pushWithMoby(ctx, node, name, l)
-											}); err != nil {
-												return err
-											}
-										}
-										remoteDigest, err := remoteDigestWithMoby(ctx, node, pushList[0])
-										if err == nil && remoteDigest != "" {
-											// old daemons might not have containerimage.config.digest set
-											// in response so use containerimage.digest value for it if available
-											if _, ok := rr.ExporterResponse[exptypes.ExporterImageConfigDigestKey]; !ok {
-												if v, ok := rr.ExporterResponse[exptypes.ExporterImageDigestKey]; ok {
-													rr.ExporterResponse[exptypes.ExporterImageConfigDigestKey] = v
-												}
-											}
-											rr.ExporterResponse[exptypes.ExporterImageDigestKey] = remoteDigest
-										} else if err != nil {
-											return err
-										}
-									}
-								}
-							}
-						}
-						return nil
-					})
-
-				}(i, dp, so)
-			}
-
 			return nil
 		}(k)
 		if err != nil {
@@ -1486,26 +1517,63 @@ func LoadInputs(ctx context.Context, d driver.Driver, inp Inputs, pw progress.Wr
 		// handle OCI layout
 		if strings.HasPrefix(v.Path, "oci-layout://") {
 			pathAlone := strings.TrimPrefix(v.Path, "oci-layout://")
-			parts := strings.SplitN(pathAlone, "@", 2)
-			if len(parts) != 2 {
-				return nil, errors.Errorf("invalid oci-layout context %s, must be oci-layout:///path/to/layout@sha256:hash", v.Path)
+			localPath := pathAlone
+			localPath, dig, hasDigest := strings.Cut(localPath, "@")
+			localPath, tag, hasTag := strings.Cut(localPath, ":")
+			if !hasTag {
+				tag = "latest"
+				hasTag = true
 			}
-			localPath := parts[0]
-			dgst, err := digest.Parse(parts[1])
+			idx := ociindex.NewStoreIndex(localPath)
+			if !hasDigest {
+				// lookup by name
+				desc, err := idx.Get(tag)
+				if err != nil {
+					return nil, err
+				}
+				if desc != nil {
+					dig = string(desc.Digest)
+					hasDigest = true
+				}
+			}
+			if !hasDigest {
+				// lookup single
+				desc, err := idx.GetSingle()
+				if err != nil {
+					return nil, err
+				}
+				if desc != nil {
+					dig = string(desc.Digest)
+					hasDigest = true
+				}
+			}
+			if !hasDigest {
+				return nil, errors.Errorf("oci-layout reference %q could not be resolved", v.Path)
+			}
+			_, err := digest.Parse(dig)
 			if err != nil {
-				return nil, errors.Wrapf(err, "invalid oci-layout context %s, does not have proper hash, must be oci-layout:///path/to/layout@sha256:hash", v.Path)
+				return nil, errors.Wrapf(err, "invalid oci-layout digest %s", dig)
 			}
+
 			store, err := local.NewStore(localPath)
 			if err != nil {
 				return nil, errors.Wrapf(err, "invalid store at %s", localPath)
 			}
-			// now we can add it
+			storeName := identity.NewID()
 			if target.OCIStores == nil {
 				target.OCIStores = map[string]content.Store{}
 			}
-			target.OCIStores[k] = store
+			target.OCIStores[storeName] = store
 
-			target.FrontendAttrs["context:"+k] = fmt.Sprintf("oci-layout:%s@%s", k, dgst.String())
+			layout := "oci-layout://" + storeName
+			if hasTag {
+				layout += ":" + tag
+			}
+			if hasDigest {
+				layout += "@" + dig
+			}
+
+			target.FrontendAttrs["context:"+k] = layout
 			continue
 		}
 		st, err := os.Stat(v.Path)

build/git.go

@@ -3,18 +3,19 @@ package build
 import (
 	"context"
 	"os"
+	"path"
 	"path/filepath"
 	"strconv"
 	"strings"
 
 	"github.com/docker/buildx/util/gitutil"
 	specs "github.com/opencontainers/image-spec/specs-go/v1"
-	"github.com/sirupsen/logrus"
+	"github.com/pkg/errors"
 )
 
 const DockerfileLabel = "com.docker.image.source.entrypoint"
 
-func getGitAttributes(ctx context.Context, contextPath string, dockerfilePath string) (res map[string]string) {
+func getGitAttributes(ctx context.Context, contextPath string, dockerfilePath string) (res map[string]string, _ error) {
 	res = make(map[string]string)
 	if contextPath == "" {
 		return
@@ -24,13 +25,13 @@ func getGitAttributes(ctx context.Context, contextPath string, dockerfilePath st
 	if v, ok := os.LookupEnv("BUILDX_GIT_LABELS"); ok {
 		if v == "full" { // backward compatibility with old "full" mode
 			setGitLabels = true
-		} else if v, _ := strconv.ParseBool(v); v {
+		} else if v, err := strconv.ParseBool(v); err == nil {
 			setGitLabels = v
 		}
 	}
 	setGitInfo := true
 	if v, ok := os.LookupEnv("BUILDX_GIT_INFO"); ok {
-		if v, _ := strconv.ParseBool(v); v {
+		if v, err := strconv.ParseBool(v); err == nil {
 			setGitInfo = v
 		}
 	}
@@ -48,27 +49,48 @@ func getGitAttributes(ctx context.Context, contextPath string, dockerfilePath st
 		wd, _ = filepath.Abs(filepath.Join(cwd, contextPath))
 	}
 
-	gitc := gitutil.New(gitutil.WithContext(ctx), gitutil.WithWorkingDir(wd))
-	if !gitc.IsInsideWorkTree() {
-		logrus.Warnf("Unable to determine Git information")
+	gitc, err := gitutil.New(gitutil.WithContext(ctx), gitutil.WithWorkingDir(wd))
+	if err != nil {
+		if st, err := os.Stat(path.Join(wd, ".git")); err == nil && st.IsDir() {
+			return res, errors.New("buildx: git was not found in the system. Current commit information was not captured by the build")
+		}
 		return
 	}
 
-	var resRevision, resSource, resDockerfilePath string
+	if !gitc.IsInsideWorkTree() {
+		if st, err := os.Stat(path.Join(wd, ".git")); err == nil && st.IsDir() {
+			return res, errors.New("buildx: failed to read current commit information with git rev-parse --is-inside-work-tree")
+		}
+		return res, nil
+	}
 
-	if sha, err := gitc.FullCommit(); err == nil && sha != "" {
-		resRevision = sha
+	if sha, err := gitc.FullCommit(); err != nil {
+		return res, errors.Wrapf(err, "buildx: failed to get git commit")
+	} else if sha != "" {
 		if gitc.IsDirty() {
-			resRevision += "-dirty"
+			sha += "-dirty"
+		}
+		if setGitLabels {
+			res["label:"+specs.AnnotationRevision] = sha
+		}
+		if setGitInfo {
+			res["vcs:revision"] = sha
 		}
 	}
 
 	if rurl, err := gitc.RemoteURL(); err == nil && rurl != "" {
-		resSource = rurl
+		if setGitLabels {
+			res["label:"+specs.AnnotationSource] = rurl
+		}
+		if setGitInfo {
+			res["vcs:source"] = rurl
+		}
 	}
 
 	if setGitLabels {
-		if root, err := gitc.RootDir(); err == nil && root != "" {
+		if root, err := gitc.RootDir(); err != nil {
+			return res, errors.Wrapf(err, "buildx: failed to get git root dir")
+		} else if root != "" {
 			if dockerfilePath == "" {
 				dockerfilePath = filepath.Join(wd, "Dockerfile")
 			}
@@ -78,32 +100,10 @@ func getGitAttributes(ctx context.Context, contextPath string, dockerfilePath st
 			}
 			dockerfilePath, _ = filepath.Rel(root, dockerfilePath)
 			if !strings.HasPrefix(dockerfilePath, "..") {
-				resDockerfilePath = dockerfilePath
+				res["label:"+DockerfileLabel] = dockerfilePath
 			}
 		}
 	}
 
-	if resSource != "" {
-		if setGitLabels {
-			res["label:"+specs.AnnotationSource] = resSource
-		}
-		if setGitInfo {
-			res["vcs:source"] = resSource
-		}
-	}
-	if resRevision != "" {
-		if setGitLabels {
-			res["label:"+specs.AnnotationRevision] = resRevision
-		}
-		if setGitInfo {
-			res["vcs:revision"] = resRevision
-		}
-	}
-	if resDockerfilePath != "" {
-		if setGitLabels {
-			res["label:"+DockerfileLabel] = resDockerfilePath
-		}
-	}
-
 	return
 }

build/git_test.go

@@ -3,6 +3,7 @@ package build
 import (
 	"context"
 	"os"
+	"path"
 	"path/filepath"
 	"strings"
 	"testing"
@@ -10,21 +11,42 @@ import (
 	"github.com/docker/buildx/util/gitutil"
 	specs "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func setupTest(tb testing.TB) {
 	gitutil.Mktmp(tb)
-	gitutil.GitInit(tb)
+
+	c, err := gitutil.New()
+	require.NoError(tb, err)
+	gitutil.GitInit(c, tb)
+
 	df := []byte("FROM alpine:latest\n")
 	assert.NoError(tb, os.WriteFile("Dockerfile", df, 0644))
-	gitutil.GitAdd(tb, "Dockerfile")
-	gitutil.GitCommit(tb, "initial commit")
+
+	gitutil.GitAdd(c, tb, "Dockerfile")
+	gitutil.GitCommit(c, tb, "initial commit")
+	gitutil.GitSetRemote(c, tb, "origin", "git@github.com:docker/buildx.git")
+}
+
+func TestGetGitAttributesNotGitRepo(t *testing.T) {
+	_, err := getGitAttributes(context.Background(), t.TempDir(), "Dockerfile")
+	assert.NoError(t, err)
+}
+
+func TestGetGitAttributesBadGitRepo(t *testing.T) {
+	tmp := t.TempDir()
+	require.NoError(t, os.MkdirAll(path.Join(tmp, ".git"), 0755))
+
+	_, err := getGitAttributes(context.Background(), tmp, "Dockerfile")
+	assert.Error(t, err)
 }
 
 func TestGetGitAttributesNoContext(t *testing.T) {
 	setupTest(t)
 
-	gitattrs := getGitAttributes(context.Background(), "", "Dockerfile")
+	gitattrs, err := getGitAttributes(context.Background(), "", "Dockerfile")
+	assert.NoError(t, err)
 	assert.Empty(t, gitattrs)
 }
 
@@ -41,14 +63,22 @@ func TestGetGitAttributes(t *testing.T) {
 			envGitInfo:   "",
 			expected: []string{
 				"vcs:revision",
+				"vcs:source",
 			},
 		},
+		{
+			name:         "none",
+			envGitLabels: "false",
+			envGitInfo:   "false",
+			expected:     []string{},
+		},
 		{
 			name:         "gitinfo",
 			envGitLabels: "false",
 			envGitInfo:   "true",
 			expected: []string{
 				"vcs:revision",
+				"vcs:source",
 			},
 		},
 		{
@@ -58,6 +88,7 @@ func TestGetGitAttributes(t *testing.T) {
 			expected: []string{
 				"label:" + DockerfileLabel,
 				"label:" + specs.AnnotationRevision,
+				"label:" + specs.AnnotationSource,
 			},
 		},
 		{
@@ -67,7 +98,9 @@ func TestGetGitAttributes(t *testing.T) {
 			expected: []string{
 				"label:" + DockerfileLabel,
 				"label:" + specs.AnnotationRevision,
+				"label:" + specs.AnnotationSource,
 				"vcs:revision",
+				"vcs:source",
 			},
 		},
 	}
@@ -81,52 +114,42 @@ func TestGetGitAttributes(t *testing.T) {
 			if tt.envGitInfo != "" {
 				t.Setenv("BUILDX_GIT_INFO", tt.envGitInfo)
 			}
-			gitattrs := getGitAttributes(context.Background(), ".", "Dockerfile")
+			gitattrs, err := getGitAttributes(context.Background(), ".", "Dockerfile")
+			require.NoError(t, err)
 			for _, e := range tt.expected {
 				assert.Contains(t, gitattrs, e)
 				assert.NotEmpty(t, gitattrs[e])
 				if e == "label:"+DockerfileLabel {
 					assert.Equal(t, "Dockerfile", gitattrs[e])
+				} else if e == "label:"+specs.AnnotationSource || e == "vcs:source" {
+					assert.Equal(t, "git@github.com:docker/buildx.git", gitattrs[e])
 				}
 			}
 		})
 	}
 }
 
-func TestGetGitAttributesWithRemote(t *testing.T) {
-	setupTest(t)
-	gitutil.GitSetRemote(t, "git@github.com:docker/buildx.git")
-
-	t.Setenv("BUILDX_GIT_LABELS", "true")
-	gitattrs := getGitAttributes(context.Background(), ".", "Dockerfile")
-	assert.Equal(t, 5, len(gitattrs))
-	assert.Contains(t, gitattrs, "label:"+DockerfileLabel)
-	assert.Equal(t, "Dockerfile", gitattrs["label:"+DockerfileLabel])
-	assert.Contains(t, gitattrs, "label:"+specs.AnnotationRevision)
-	assert.NotEmpty(t, gitattrs["label:"+specs.AnnotationRevision])
-	assert.Contains(t, gitattrs, "label:"+specs.AnnotationSource)
-	assert.Equal(t, "git@github.com:docker/buildx.git", gitattrs["label:"+specs.AnnotationSource])
-	assert.Contains(t, gitattrs, "vcs:revision")
-	assert.NotEmpty(t, gitattrs["vcs:revision"])
-	assert.Contains(t, gitattrs, "vcs:source")
-	assert.Equal(t, "git@github.com:docker/buildx.git", gitattrs["vcs:source"])
-}
-
 func TestGetGitAttributesDirty(t *testing.T) {
 	setupTest(t)
 
 	// make a change to test dirty flag
 	df := []byte("FROM alpine:edge\n")
-	assert.NoError(t, os.Mkdir("dir", 0755))
-	assert.NoError(t, os.WriteFile(filepath.Join("dir", "Dockerfile"), df, 0644))
+	require.NoError(t, os.Mkdir("dir", 0755))
+	require.NoError(t, os.WriteFile(filepath.Join("dir", "Dockerfile"), df, 0644))
 
 	t.Setenv("BUILDX_GIT_LABELS", "true")
-	gitattrs := getGitAttributes(context.Background(), ".", "Dockerfile")
-	assert.Equal(t, 3, len(gitattrs))
+	gitattrs, _ := getGitAttributes(context.Background(), ".", "Dockerfile")
+	assert.Equal(t, 5, len(gitattrs))
+
 	assert.Contains(t, gitattrs, "label:"+DockerfileLabel)
 	assert.Equal(t, "Dockerfile", gitattrs["label:"+DockerfileLabel])
+	assert.Contains(t, gitattrs, "label:"+specs.AnnotationSource)
+	assert.Equal(t, "git@github.com:docker/buildx.git", gitattrs["label:"+specs.AnnotationSource])
 	assert.Contains(t, gitattrs, "label:"+specs.AnnotationRevision)
 	assert.True(t, strings.HasSuffix(gitattrs["label:"+specs.AnnotationRevision], "-dirty"))
+
+	assert.Contains(t, gitattrs, "vcs:source")
+	assert.Equal(t, "git@github.com:docker/buildx.git", gitattrs["vcs:source"])
 	assert.Contains(t, gitattrs, "vcs:revision")
 	assert.True(t, strings.HasSuffix(gitattrs["vcs:revision"], "-dirty"))
 }

builder/builder.go

@@ -219,9 +219,9 @@ func (b *Builder) Factory(ctx context.Context) (_ driver.Factory, err error) {
 			// driver for a docker context and allows falling back to a
 			// docker-container driver for older daemon that doesn't support
 			// buildkit (< 18.06).
-			ep := b.nodes[0].Endpoint
+			ep := b.NodeGroup.Nodes[0].Endpoint
 			var dockerapi *dockerutil.ClientAPI
-			dockerapi, err = dockerutil.NewClientAPI(b.opts.dockerCli, b.nodes[0].Endpoint)
+			dockerapi, err = dockerutil.NewClientAPI(b.opts.dockerCli, b.NodeGroup.Nodes[0].Endpoint)
 			if err != nil {
 				return
 			}

builder/node.go

@@ -62,6 +62,7 @@ func (b *Builder) LoadNodes(ctx context.Context, withData bool) (_ []Node, err e
 				node := Node{
 					Node:        n,
 					ProxyConfig: storeutil.GetProxyConfig(b.opts.dockerCli),
+					Platforms:   n.Platforms,
 				}
 				defer func() {
 					b.nodes[i] = node

commands/build.go

@@ -470,7 +470,7 @@ func buildCmd(dockerCli command.Cli, rootOpts *rootOptions) *cobra.Command {
 	flags := cmd.Flags()
 
 	flags.StringSliceVar(&options.extraHosts, "add-host", []string{}, `Add a custom host-to-IP mapping (format: "host:ip")`)
-	flags.SetAnnotation("add-host", annotation.ExternalURL, []string{"https://docs.docker.com/engine/reference/commandline/build/#add-entries-to-container-hosts-file---add-host"})
+	flags.SetAnnotation("add-host", annotation.ExternalURL, []string{"https://docs.docker.com/engine/reference/commandline/build/#add-host"})
 
 	flags.StringSliceVar(&options.allow, "allow", []string{}, `Allow extra privileged entitlement (e.g., "network.host", "security.insecure")`)
 
@@ -481,12 +481,12 @@ func buildCmd(dockerCli command.Cli, rootOpts *rootOptions) *cobra.Command {
 	flags.StringArrayVar(&options.cacheTo, "cache-to", []string{}, `Cache export destinations (e.g., "user/app:cache", "type=local,dest=path/to/dir")`)
 
 	flags.StringVar(&options.cgroupParent, "cgroup-parent", "", "Optional parent cgroup for the container")
-	flags.SetAnnotation("cgroup-parent", annotation.ExternalURL, []string{"https://docs.docker.com/engine/reference/commandline/build/#use-a-custom-parent-cgroup---cgroup-parent"})
+	flags.SetAnnotation("cgroup-parent", annotation.ExternalURL, []string{"https://docs.docker.com/engine/reference/commandline/build/#cgroup-parent"})
 
 	flags.StringArrayVar(&options.contexts, "build-context", []string{}, "Additional build contexts (e.g., name=path)")
 
 	flags.StringVarP(&options.dockerfileName, "file", "f", "", `Name of the Dockerfile (default: "PATH/Dockerfile")`)
-	flags.SetAnnotation("file", annotation.ExternalURL, []string{"https://docs.docker.com/engine/reference/commandline/build/#specify-a-dockerfile--f"})
+	flags.SetAnnotation("file", annotation.ExternalURL, []string{"https://docs.docker.com/engine/reference/commandline/build/#file"})
 
 	flags.StringVar(&options.imageIDFile, "iidfile", "", "Write the image ID to the file")
 
@@ -517,10 +517,10 @@ func buildCmd(dockerCli command.Cli, rootOpts *rootOptions) *cobra.Command {
 	flags.StringArrayVar(&options.ssh, "ssh", []string{}, `SSH agent socket or keys to expose to the build (format: "default|<id>[=<socket>|<key>[,<key>]]")`)
 
 	flags.StringArrayVarP(&options.tags, "tag", "t", []string{}, `Name and optionally a tag (format: "name:tag")`)
-	flags.SetAnnotation("tag", annotation.ExternalURL, []string{"https://docs.docker.com/engine/reference/commandline/build/#tag-an-image--t"})
+	flags.SetAnnotation("tag", annotation.ExternalURL, []string{"https://docs.docker.com/engine/reference/commandline/build/#tag"})
 
 	flags.StringVar(&options.target, "target", "", "Set the target build stage to build")
-	flags.SetAnnotation("target", annotation.ExternalURL, []string{"https://docs.docker.com/engine/reference/commandline/build/#specifying-target-build-stage---target"})
+	flags.SetAnnotation("target", annotation.ExternalURL, []string{"https://docs.docker.com/engine/reference/commandline/build/#target"})
 
 	flags.Var(options.ulimits, "ulimit", "Ulimit options")
 

commands/rm.go

@@ -141,9 +141,6 @@ func rmAllInactive(ctx context.Context, txn *store.Txn, dockerCli command.Cli, i
 				if err != nil {
 					return errors.Wrapf(err, "cannot load %s", b.Name)
 				}
-				if cb := b.ContextName(); cb != "" {
-					return errors.Errorf("context builder cannot be removed, run `docker context rm %s` to remove this context", cb)
-				}
 				if b.Dynamic {
 					return nil
 				}

docker-bake.hcl

@@ -17,7 +17,6 @@ target "_common" {
   args = {
     GO_VERSION = GO_VERSION
     BUILDKIT_CONTEXT_KEEP_GIT_DIR = 1
-    BUILDX_EXPERIMENTAL = 1
   }
 }
 
@@ -46,6 +45,7 @@ target "validate-docs" {
   inherits = ["_common"]
   args = {
     FORMATS = DOCS_FORMATS
+    BUILDX_EXPERIMENTAL = 1 // enables experimental cmds/flags for docs generation
   }
   dockerfile = "./hack/dockerfiles/docs.Dockerfile"
   target = "validate"
@@ -70,6 +70,7 @@ target "update-docs" {
   inherits = ["_common"]
   args = {
     FORMATS = DOCS_FORMATS
+    BUILDX_EXPERIMENTAL = 1 // enables experimental cmds/flags for docs generation
   }
   dockerfile = "./hack/dockerfiles/docs.Dockerfile"
   target = "update"

docs/manuals/bake/build-contexts.md

@@ -1,3 +1,3 @@
 # Defining additional build contexts and linking targets
 
-Moved to [docs.docker.com](https://docs.docker.com/build/customize/bake/build-contexts)
+Moved to [docs.docker.com](https://docs.docker.com/build/bake/build-contexts)

docs/manuals/bake/compose-file.md

@@ -1,3 +1,3 @@
 # Building from Compose file
 
-Moved to [docs.docker.com](https://docs.docker.com/build/customize/bake/compose-file)
+Moved to [docs.docker.com](https://docs.docker.com/build/bake/compose-file)

docs/manuals/bake/configuring-build.md

@@ -1,3 +1,3 @@
 # Configuring builds
 
-Moved to [docs.docker.com](https://docs.docker.com/build/customize/bake/configuring-build)
+Moved to [docs.docker.com](https://docs.docker.com/build/bake/configuring-build)

docs/manuals/bake/file-definition.md

@@ -1,3 +1,3 @@
 # Bake file definition
 
-Moved to [docs.docker.com](https://docs.docker.com/build/customize/bake/file-definition)
+Moved to [docs.docker.com](https://docs.docker.com/build/bake/file-definition)

docs/manuals/bake/hcl-funcs.md

@@ -1,3 +1,3 @@
 # User defined HCL functions
 
-Moved to [docs.docker.com](https://docs.docker.com/build/customize/bake/hcl-funcs)
+Moved to [docs.docker.com](https://docs.docker.com/build/bake/hcl-funcs)

docs/manuals/bake/index.md

@@ -1,3 +1,3 @@
 # High-level build options with Bake
 
-Moved to [docs.docker.com](https://docs.docker.com/build/customize/bake)
+Moved to [docs.docker.com](https://docs.docker.com/build/bake)

docs/reference/buildx.md

@@ -9,29 +9,29 @@ Extended build capabilities with BuildKit
 
 ### Subcommands
 
-| Name | Description |
-| --- | --- |
-| [`bake`](buildx_bake.md) | Build from a file |
-| [`build`](buildx_build.md) | Start a build |
-| [`create`](buildx_create.md) | Create a new builder instance |
-| [`du`](buildx_du.md) | Disk usage |
-| [`imagetools`](buildx_imagetools.md) | Commands to work on images in registry |
-| [`inspect`](buildx_inspect.md) | Inspect current builder instance |
-| [`install`](buildx_install.md) | Install buildx as a 'docker builder' alias |
-| [`ls`](buildx_ls.md) | List builder instances |
-| [`prune`](buildx_prune.md) | Remove build cache |
-| [`rm`](buildx_rm.md) | Remove a builder instance |
-| [`stop`](buildx_stop.md) | Stop builder instance |
-| [`uninstall`](buildx_uninstall.md) | Uninstall the 'docker builder' alias |
-| [`use`](buildx_use.md) | Set the current builder instance |
-| [`version`](buildx_version.md) | Show buildx version information |
+| Name                                 | Description                                |
+|:-------------------------------------|:-------------------------------------------|
+| [`bake`](buildx_bake.md)             | Build from a file                          |
+| [`build`](buildx_build.md)           | Start a build                              |
+| [`create`](buildx_create.md)         | Create a new builder instance              |
+| [`du`](buildx_du.md)                 | Disk usage                                 |
+| [`imagetools`](buildx_imagetools.md) | Commands to work on images in registry     |
+| [`inspect`](buildx_inspect.md)       | Inspect current builder instance           |
+| [`install`](buildx_install.md)       | Install buildx as a 'docker builder' alias |
+| [`ls`](buildx_ls.md)                 | List builder instances                     |
+| [`prune`](buildx_prune.md)           | Remove build cache                         |
+| [`rm`](buildx_rm.md)                 | Remove a builder instance                  |
+| [`stop`](buildx_stop.md)             | Stop builder instance                      |
+| [`uninstall`](buildx_uninstall.md)   | Uninstall the 'docker builder' alias       |
+| [`use`](buildx_use.md)               | Set the current builder instance           |
+| [`version`](buildx_version.md)       | Show buildx version information            |
 
 
 ### Options
 
-| Name | Type | Default | Description |
-| --- | --- | --- | --- |
-| [`--builder`](#builder) | `string` |  | Override the configured builder instance |
+| Name                    | Type     | Default | Description                              |
+|:------------------------|:---------|:--------|:-----------------------------------------|
+| [`--builder`](#builder) | `string` |         | Override the configured builder instance |
 
 
 <!---MARKER_GEN_END-->

docs/reference/buildx_bake.md

@@ -13,20 +13,20 @@ Build from a file
 
 ### Options
 
-| Name | Type | Default | Description |
-| --- | --- | --- | --- |
-| [`--builder`](#builder) | `string` |  | Override the configured builder instance |
-| [`-f`](#file), [`--file`](#file) | `stringArray` |  | Build definition file |
-| `--load` |  |  | Shorthand for `--set=*.output=type=docker` |
-| `--metadata-file` | `string` |  | Write build result metadata to the file |
-| [`--no-cache`](#no-cache) |  |  | Do not use cache when building the image |
-| [`--print`](#print) |  |  | Print the options without building |
-| [`--progress`](#progress) | `string` | `auto` | Set type of progress output (`auto`, `plain`, `tty`). Use plain to show container output |
-| `--provenance` | `string` |  | Shorthand for `--set=*.attest=type=provenance` |
-| [`--pull`](#pull) |  |  | Always attempt to pull all referenced images |
-| `--push` |  |  | Shorthand for `--set=*.output=type=registry` |
-| `--sbom` | `string` |  | Shorthand for `--set=*.attest=type=sbom` |
-| [`--set`](#set) | `stringArray` |  | Override target value (e.g., `targetpattern.key=value`) |
+| Name                             | Type          | Default | Description                                                                              |
+|:---------------------------------|:--------------|:--------|:-----------------------------------------------------------------------------------------|
+| [`--builder`](#builder)          | `string`      |         | Override the configured builder instance                                                 |
+| [`-f`](#file), [`--file`](#file) | `stringArray` |         | Build definition file                                                                    |
+| `--load`                         |               |         | Shorthand for `--set=*.output=type=docker`                                               |
+| `--metadata-file`                | `string`      |         | Write build result metadata to the file                                                  |
+| [`--no-cache`](#no-cache)        |               |         | Do not use cache when building the image                                                 |
+| [`--print`](#print)              |               |         | Print the options without building                                                       |
+| [`--progress`](#progress)        | `string`      | `auto`  | Set type of progress output (`auto`, `plain`, `tty`). Use plain to show container output |
+| [`--provenance`](#provenance)    | `string`      |         | Shorthand for `--set=*.attest=type=provenance`                                           |
+| [`--pull`](#pull)                |               |         | Always attempt to pull all referenced images                                             |
+| `--push`                         |               |         | Shorthand for `--set=*.output=type=registry`                                             |
+| [`--sbom`](#sbom)                | `string`      |         | Shorthand for `--set=*.attest=type=sbom`                                                 |
+| [`--set`](#set)                  | `stringArray` |         | Override target value (e.g., `targetpattern.key=value`)                                  |
 
 
 <!---MARKER_GEN_END-->
@@ -36,7 +36,7 @@ Build from a file
 Bake is a high-level build command. Each specified target will run in parallel
 as part of the build.
 
-Read [High-level build options with Bake](https://docs.docker.com/build/customize/bake/)
+Read [High-level build options with Bake](https://docs.docker.com/build/bake/)
 guide for introduction to writing bake files.
 
 > **Note**
@@ -87,7 +87,7 @@ target "db" {
 $ docker buildx bake -f docker-bake.dev.hcl db webapp-release
 ```
 
-See our [file definition](https://docs.docker.com/build/customize/bake/file-definition/)
+See our [file definition](https://docs.docker.com/build/bake/file-definition/)
 guide for more details.
 
 ### <a name="no-cache"></a> Do not use cache when building the image (--no-cache)
@@ -125,10 +125,18 @@ $ docker buildx bake -f docker-bake.hcl --print db
 
 Same as [`build --progress`](buildx_build.md#progress).
 
+### <a name="provenance"></a> Create provenance attestations (--provenance)
+
+Same as [`build --provenance`](buildx_build.md#provenance).
+
 ### <a name="pull"></a> Always attempt to pull a newer version of the image (--pull)
 
 Same as `build --pull`.
 
+### <a name="sbom"></a> Create SBOM attestations (--sbom)
+
+Same as [`build --sbom`](buildx_build.md#sbom).
+
 ### <a name="set"></a> Override target configurations from command line (--set)
 
 ```

docs/reference/buildx_build.md

@@ -13,41 +13,41 @@ Start a build
 
 ### Options
 
-| Name | Type | Default | Description |
-| --- | --- | --- | --- |
-| [`--add-host`](https://docs.docker.com/engine/reference/commandline/build/#add-entries-to-container-hosts-file---add-host) | `stringSlice` |  | Add a custom host-to-IP mapping (format: `host:ip`) |
-| [`--allow`](#allow) | `stringSlice` |  | Allow extra privileged entitlement (e.g., `network.host`, `security.insecure`) |
-| `--attest` | `stringArray` |  | Attestation parameters (format: `type=sbom,generator=image`) |
-| [`--build-arg`](#build-arg) | `stringArray` |  | Set build-time variables |
-| [`--build-context`](#build-context) | `stringArray` |  | Additional build contexts (e.g., name=path) |
-| [`--builder`](#builder) | `string` |  | Override the configured builder instance |
-| [`--cache-from`](#cache-from) | `stringArray` |  | External cache sources (e.g., `user/app:cache`, `type=local,src=path/to/dir`) |
-| [`--cache-to`](#cache-to) | `stringArray` |  | Cache export destinations (e.g., `user/app:cache`, `type=local,dest=path/to/dir`) |
-| [`--cgroup-parent`](https://docs.docker.com/engine/reference/commandline/build/#use-a-custom-parent-cgroup---cgroup-parent) | `string` |  | Optional parent cgroup for the container |
-| [`-f`](https://docs.docker.com/engine/reference/commandline/build/#specify-a-dockerfile--f), [`--file`](https://docs.docker.com/engine/reference/commandline/build/#specify-a-dockerfile--f) | `string` |  | Name of the Dockerfile (default: `PATH/Dockerfile`) |
-| `--iidfile` | `string` |  | Write the image ID to the file |
-| `--invoke` | `string` |  | Invoke a command after the build [experimental] |
-| `--label` | `stringArray` |  | Set metadata for an image |
-| [`--load`](#load) |  |  | Shorthand for `--output=type=docker` |
-| [`--metadata-file`](#metadata-file) | `string` |  | Write build result metadata to the file |
-| `--network` | `string` | `default` | Set the networking mode for the `RUN` instructions during build |
-| `--no-cache` |  |  | Do not use cache when building the image |
-| `--no-cache-filter` | `stringArray` |  | Do not cache specified stages |
-| [`-o`](#output), [`--output`](#output) | `stringArray` |  | Output destination (format: `type=local,dest=path`) |
-| [`--platform`](#platform) | `stringArray` |  | Set target platform for build |
-| `--print` | `string` |  | Print result of information request (e.g., outline, targets) [experimental] |
-| [`--progress`](#progress) | `string` | `auto` | Set type of progress output (`auto`, `plain`, `tty`). Use plain to show container output |
-| `--provenance` | `string` |  | Shortand for `--attest=type=provenance` |
-| `--pull` |  |  | Always attempt to pull all referenced images |
-| [`--push`](#push) |  |  | Shorthand for `--output=type=registry` |
-| `-q`, `--quiet` |  |  | Suppress the build output and print image ID on success |
-| `--sbom` | `string` |  | Shorthand for `--attest=type=sbom` |
-| [`--secret`](#secret) | `stringArray` |  | Secret to expose to the build (format: `id=mysecret[,src=/local/secret]`) |
-| [`--shm-size`](#shm-size) | `bytes` | `0` | Size of `/dev/shm` |
-| [`--ssh`](#ssh) | `stringArray` |  | SSH agent socket or keys to expose to the build (format: `default\|<id>[=<socket>\|<key>[,<key>]]`) |
-| [`-t`](https://docs.docker.com/engine/reference/commandline/build/#tag-an-image--t), [`--tag`](https://docs.docker.com/engine/reference/commandline/build/#tag-an-image--t) | `stringArray` |  | Name and optionally a tag (format: `name:tag`) |
-| [`--target`](https://docs.docker.com/engine/reference/commandline/build/#specifying-target-build-stage---target) | `string` |  | Set the target build stage to build |
-| [`--ulimit`](#ulimit) | `ulimit` |  | Ulimit options |
+| Name                                                                                                                                                   | Type          | Default   | Description                                                                                         |
+|:-------------------------------------------------------------------------------------------------------------------------------------------------------|:--------------|:----------|:----------------------------------------------------------------------------------------------------|
+| [`--add-host`](https://docs.docker.com/engine/reference/commandline/build/#add-host)                                                                   | `stringSlice` |           | Add a custom host-to-IP mapping (format: `host:ip`)                                                 |
+| [`--allow`](#allow)                                                                                                                                    | `stringSlice` |           | Allow extra privileged entitlement (e.g., `network.host`, `security.insecure`)                      |
+| [`--attest`](#attest)                                                                                                                                  | `stringArray` |           | Attestation parameters (format: `type=sbom,generator=image`)                                        |
+| [`--build-arg`](#build-arg)                                                                                                                            | `stringArray` |           | Set build-time variables                                                                            |
+| [`--build-context`](#build-context)                                                                                                                    | `stringArray` |           | Additional build contexts (e.g., name=path)                                                         |
+| [`--builder`](#builder)                                                                                                                                | `string`      |           | Override the configured builder instance                                                            |
+| [`--cache-from`](#cache-from)                                                                                                                          | `stringArray` |           | External cache sources (e.g., `user/app:cache`, `type=local,src=path/to/dir`)                       |
+| [`--cache-to`](#cache-to)                                                                                                                              | `stringArray` |           | Cache export destinations (e.g., `user/app:cache`, `type=local,dest=path/to/dir`)                   |
+| [`--cgroup-parent`](https://docs.docker.com/engine/reference/commandline/build/#cgroup-parent)                                                         | `string`      |           | Optional parent cgroup for the container                                                            |
+| [`-f`](https://docs.docker.com/engine/reference/commandline/build/#file), [`--file`](https://docs.docker.com/engine/reference/commandline/build/#file) | `string`      |           | Name of the Dockerfile (default: `PATH/Dockerfile`)                                                 |
+| `--iidfile`                                                                                                                                            | `string`      |           | Write the image ID to the file                                                                      |
+| `--invoke`                                                                                                                                             | `string`      |           | Invoke a command after the build [experimental]                                                     |
+| `--label`                                                                                                                                              | `stringArray` |           | Set metadata for an image                                                                           |
+| [`--load`](#load)                                                                                                                                      |               |           | Shorthand for `--output=type=docker`                                                                |
+| [`--metadata-file`](#metadata-file)                                                                                                                    | `string`      |           | Write build result metadata to the file                                                             |
+| `--network`                                                                                                                                            | `string`      | `default` | Set the networking mode for the `RUN` instructions during build                                     |
+| `--no-cache`                                                                                                                                           |               |           | Do not use cache when building the image                                                            |
+| `--no-cache-filter`                                                                                                                                    | `stringArray` |           | Do not cache specified stages                                                                       |
+| [`-o`](#output), [`--output`](#output)                                                                                                                 | `stringArray` |           | Output destination (format: `type=local,dest=path`)                                                 |
+| [`--platform`](#platform)                                                                                                                              | `stringArray` |           | Set target platform for build                                                                       |
+| `--print`                                                                                                                                              | `string`      |           | Print result of information request (e.g., outline, targets) [experimental]                         |
+| [`--progress`](#progress)                                                                                                                              | `string`      | `auto`    | Set type of progress output (`auto`, `plain`, `tty`). Use plain to show container output            |
+| [`--provenance`](#provenance)                                                                                                                          | `string`      |           | Shortand for `--attest=type=provenance`                                                             |
+| `--pull`                                                                                                                                               |               |           | Always attempt to pull all referenced images                                                        |
+| [`--push`](#push)                                                                                                                                      |               |           | Shorthand for `--output=type=registry`                                                              |
+| `-q`, `--quiet`                                                                                                                                        |               |           | Suppress the build output and print image ID on success                                             |
+| [`--sbom`](#sbom)                                                                                                                                      | `string`      |           | Shorthand for `--attest=type=sbom`                                                                  |
+| [`--secret`](#secret)                                                                                                                                  | `stringArray` |           | Secret to expose to the build (format: `id=mysecret[,src=/local/secret]`)                           |
+| [`--shm-size`](#shm-size)                                                                                                                              | `bytes`       | `0`       | Size of `/dev/shm`                                                                                  |
+| [`--ssh`](#ssh)                                                                                                                                        | `stringArray` |           | SSH agent socket or keys to expose to the build (format: `default\|<id>[=<socket>\|<key>[,<key>]]`) |
+| [`-t`](https://docs.docker.com/engine/reference/commandline/build/#tag), [`--tag`](https://docs.docker.com/engine/reference/commandline/build/#tag)    | `stringArray` |           | Name and optionally a tag (format: `name:tag`)                                                      |
+| [`--target`](https://docs.docker.com/engine/reference/commandline/build/#target)                                                                       | `string`      |           | Set the target build stage to build                                                                 |
+| [`--ulimit`](#ulimit)                                                                                                                                  | `ulimit`      |           | Ulimit options                                                                                      |
 
 
 <!---MARKER_GEN_END-->
@@ -66,6 +66,30 @@ here we'll document a subset of the new flags.
 
 ## Examples
 
+### <a name="attest"></a> Create attestations (--attest)
+
+```
+--attest=type=sbom,...
+--attest=type=provenance,...
+```
+
+Create [image attestations](https://docs.docker.com/build/attestations/).
+BuildKit currently supports:
+
+- `sbom` - Software Bill of Materials.
+
+  Use `--attest=type=sbom` to generate an SBOM for an image at build-time.
+  Alternatively, you can use the [`--sbom` shorthand](#sbom).
+
+  For more information, see [here](https://docs.docker.com/build/attestations/sbom/).
+
+- `provenance` - SLSA Provenance
+
+  Use `--attest=type=provenance` to generate provenance for an image at
+  build-time. Alternatively, you can use the [`--provenance` shorthand](#provenance).
+
+  For more information, see [here](https://docs.docker.com/build/attestations/slsa-provenance/).
+
 ### <a name="allow"></a> Allow extra privileged entitlement (--allow)
 
 ```
@@ -90,7 +114,7 @@ $ docker buildx build --allow security.insecure .
 
 ### <a name="build-arg"></a> Set build-time variables (--build-arg)
 
-Same as [`docker build` command](https://docs.docker.com/engine/reference/commandline/build/#set-build-time-variables---build-arg).
+Same as [`docker build` command](https://docs.docker.com/engine/reference/commandline/build/#build-arg).
 
 There are also useful built-in build args like:
 
@@ -139,10 +163,12 @@ COPY --from=project myfile /
 
 #### <a name="source-oci-layout"></a> Source image from OCI layout directory
 
-Source an image from a local [OCI layout compliant directory](https://github.com/opencontainers/image-spec/blob/main/image-layout.md):
+Source an image from a local [OCI layout compliant directory](https://github.com/opencontainers/image-spec/blob/main/image-layout.md),
+either by tag, or by digest:
 
 ```console
-$ docker buildx build --build-context foo=oci-layout:///path/to/local/layout@sha256:abcd12345 .
+$ docker buildx build --build-context foo=oci-layout:///path/to/local/layout:<tag>
+$ docker buildx build --build-context foo=oci-layout:///path/to/local/layout@sha256:<digest>
 ```
 
 ```dockerfile
@@ -154,14 +180,8 @@ COPY --from=foo myfile /
 FROM foo
 ```
 
-The OCI layout directory must be compliant with the [OCI layout specification](https://github.com/opencontainers/image-spec/blob/main/image-layout.md). It looks _solely_ for hashes. It does not
-do any form of `image:tag` resolution to find the hash of the manifest; that is up to you.
-
-The format of the `--build-context` must be: `<context>=oci-layout://<path-to-local-layout>@sha256:<hash-of-manifest>`, where:
-
-* `context` is the name of the build context as used in the `Dockerfile`.
-* `path-to-local-layout` is the path on the local machine, where you are running `docker build`, to the spec-compliant OCI layout.
-* `hash-of-manifest` is the hash of the manifest for the image. It can be a single-architecture manifest or a multi-architecture index.
+The OCI layout directory must be compliant with the [OCI layout specification](https://github.com/opencontainers/image-spec/blob/main/image-layout.md).
+You can reference an image in the layout using either tags, or the exact digest.
 
 ### <a name="builder"></a> Override the configured builder instance (--builder)
 
@@ -455,11 +475,21 @@ $ docker buildx build --load --progress=plain .
 > Check also our [Color output controls guide](https://github.com/docker/buildx/blob/master/docs/guides/color-output.md)
 > for modifying the colors that are used to output information to the terminal.
 
+### <a name="provenance"></a> Create provenance attestations (--provenance)
+
+Shorthand for [`--attest=type=provenance`](#attest). Enables provenance
+attestations for the build result.
+
 ### <a name="push"></a> Push the build result to a registry (--push)
 
 Shorthand for [`--output=type=registry`](#registry). Will automatically push the
 build result to registry.
 
+### <a name="sbom"></a> Create SBOM attestations (--sbom)
+
+Shorthand for [`--attest=type=sbom`](#attest). Enables SBOM attestations for
+the build result.
+
 ### <a name="secret"></a> Secret to expose to the build (--secret)
 
 ```

docs/reference/buildx_create.md

@@ -9,19 +9,19 @@ Create a new builder instance
 
 ### Options
 
-| Name | Type | Default | Description |
-| --- | --- | --- | --- |
-| [`--append`](#append) |  |  | Append a node to builder instead of changing it |
-| `--bootstrap` |  |  | Boot builder after creation |
-| [`--buildkitd-flags`](#buildkitd-flags) | `string` |  | Flags for buildkitd daemon |
-| [`--config`](#config) | `string` |  | BuildKit config file |
-| [`--driver`](#driver) | `string` |  | Driver to use (available: `docker-container`, `kubernetes`, `remote`) |
-| [`--driver-opt`](#driver-opt) | `stringArray` |  | Options for the driver |
-| [`--leave`](#leave) |  |  | Remove a node from builder instead of changing it |
-| [`--name`](#name) | `string` |  | Builder instance name |
-| [`--node`](#node) | `string` |  | Create/modify node with given name |
-| [`--platform`](#platform) | `stringArray` |  | Fixed platforms for current node |
-| [`--use`](#use) |  |  | Set the current builder instance |
+| Name                                    | Type          | Default | Description                                                           |
+|:----------------------------------------|:--------------|:--------|:----------------------------------------------------------------------|
+| [`--append`](#append)                   |               |         | Append a node to builder instead of changing it                       |
+| `--bootstrap`                           |               |         | Boot builder after creation                                           |
+| [`--buildkitd-flags`](#buildkitd-flags) | `string`      |         | Flags for buildkitd daemon                                            |
+| [`--config`](#config)                   | `string`      |         | BuildKit config file                                                  |
+| [`--driver`](#driver)                   | `string`      |         | Driver to use (available: `docker-container`, `kubernetes`, `remote`) |
+| [`--driver-opt`](#driver-opt)           | `stringArray` |         | Options for the driver                                                |
+| [`--leave`](#leave)                     |               |         | Remove a node from builder instead of changing it                     |
+| [`--name`](#name)                       | `string`      |         | Builder instance name                                                 |
+| [`--node`](#node)                       | `string`      |         | Create/modify node with given name                                    |
+| [`--platform`](#platform)               | `stringArray` |         | Fixed platforms for current node                                      |
+| [`--use`](#use)                         |               |         | Set the current builder instance                                      |
 
 
 <!---MARKER_GEN_END-->

docs/reference/buildx_du.md

@@ -9,11 +9,11 @@ Disk usage
 
 ### Options
 
-| Name | Type | Default | Description |
-| --- | --- | --- | --- |
-| [`--builder`](#builder) | `string` |  | Override the configured builder instance |
-| `--filter` | `filter` |  | Provide filter values |
-| `--verbose` |  |  | Provide a more verbose output |
+| Name                    | Type     | Default | Description                              |
+|:------------------------|:---------|:--------|:-----------------------------------------|
+| [`--builder`](#builder) | `string` |         | Override the configured builder instance |
+| `--filter`              | `filter` |         | Provide filter values                    |
+| `--verbose`             |          |         | Provide a more verbose output            |
 
 
 <!---MARKER_GEN_END-->

docs/reference/buildx_imagetools.md

@@ -9,17 +9,17 @@ Commands to work on images in registry
 
 ### Subcommands
 
-| Name | Description |
-| --- | --- |
-| [`create`](buildx_imagetools_create.md) | Create a new image based on source images |
-| [`inspect`](buildx_imagetools_inspect.md) | Show details of an image in the registry |
+| Name                                      | Description                               |
+|:------------------------------------------|:------------------------------------------|
+| [`create`](buildx_imagetools_create.md)   | Create a new image based on source images |
+| [`inspect`](buildx_imagetools_inspect.md) | Show details of an image in the registry  |
 
 
 ### Options
 
-| Name | Type | Default | Description |
-| --- | --- | --- | --- |
-| [`--builder`](#builder) | `string` |  | Override the configured builder instance |
+| Name                    | Type     | Default | Description                              |
+|:------------------------|:---------|:--------|:-----------------------------------------|
+| [`--builder`](#builder) | `string` |         | Override the configured builder instance |
 
 
 <!---MARKER_GEN_END-->

docs/reference/buildx_imagetools_create.md

@@ -9,14 +9,14 @@ Create a new image based on source images
 
 ### Options
 
-| Name | Type | Default | Description |
-| --- | --- | --- | --- |
-| [`--append`](#append) |  |  | Append to existing manifest |
-| [`--builder`](#builder) | `string` |  | Override the configured builder instance |
-| [`--dry-run`](#dry-run) |  |  | Show final image instead of pushing |
-| [`-f`](#file), [`--file`](#file) | `stringArray` |  | Read source descriptor from file |
-| `--progress` | `string` | `auto` | Set type of progress output (`auto`, `plain`, `tty`). Use plain to show container output |
-| [`-t`](#tag), [`--tag`](#tag) | `stringArray` |  | Set reference for new image |
+| Name                             | Type          | Default | Description                                                                              |
+|:---------------------------------|:--------------|:--------|:-----------------------------------------------------------------------------------------|
+| [`--append`](#append)            |               |         | Append to existing manifest                                                              |
+| [`--builder`](#builder)          | `string`      |         | Override the configured builder instance                                                 |
+| [`--dry-run`](#dry-run)          |               |         | Show final image instead of pushing                                                      |
+| [`-f`](#file), [`--file`](#file) | `stringArray` |         | Read source descriptor from file                                                         |
+| `--progress`                     | `string`      | `auto`  | Set type of progress output (`auto`, `plain`, `tty`). Use plain to show container output |
+| [`-t`](#tag), [`--tag`](#tag)    | `stringArray` |         | Set reference for new image                                                              |
 
 
 <!---MARKER_GEN_END-->

docs/reference/buildx_imagetools_inspect.md

@@ -9,11 +9,11 @@ Show details of an image in the registry
 
 ### Options
 
-| Name | Type | Default | Description |
-| --- | --- | --- | --- |
-| [`--builder`](#builder) | `string` |  | Override the configured builder instance |
-| [`--format`](#format) | `string` | `{{.Manifest}}` | Format the output using the given Go template |
-| [`--raw`](#raw) |  |  | Show original, unformatted JSON manifest |
+| Name                    | Type     | Default         | Description                                   |
+|:------------------------|:---------|:----------------|:----------------------------------------------|
+| [`--builder`](#builder) | `string` |                 | Override the configured builder instance      |
+| [`--format`](#format)   | `string` | `{{.Manifest}}` | Format the output using the given Go template |
+| [`--raw`](#raw)         |          |                 | Show original, unformatted JSON manifest      |
 
 
 <!---MARKER_GEN_END-->
@@ -72,7 +72,6 @@ unset. Following fields are available:
 * `.Name`: provides the reference of the image
 * `.Manifest`: provides the manifest or manifest list
 * `.Image`: provides the image config
-* `.BuildInfo`: provides [build info from image config](https://github.com/moby/buildkit/blob/master/docs/build-repro.md#image-config)
 
 #### `.Name`
 
@@ -122,39 +121,6 @@ Manifests:
   Platform:  linux/riscv64
 ```
 
-#### `.BuildInfo`
-
-```console
-$ docker buildx imagetools inspect crazymax/buildx:buildinfo --format "{{.BuildInfo}}"
-Name: docker.io/crazymax/buildx:buildinfo
-Frontend: dockerfile.v0
-Attrs:
-  filename:      Dockerfile
-  source:        docker/dockerfile-upstream:master-labs
-  build-arg:bar: foo
-  build-arg:foo: bar
-Sources:
-  Type: docker-image
-  Ref:  docker.io/docker/buildx-bin:0.6.1@sha256:a652ced4a4141977c7daaed0a074dcd9844a78d7d2615465b12f433ae6dd29f0
-  Pin:  sha256:a652ced4a4141977c7daaed0a074dcd9844a78d7d2615465b12f433ae6dd29f0
-
-  Type: docker-image
-  Ref:  docker.io/library/alpine:3.13
-  Pin:  sha256:026f721af4cf2843e07bba648e158fb35ecc876d822130633cc49f707f0fc88c
-
-  Type: docker-image
-  Ref:  docker.io/moby/buildkit:v0.9.0
-  Pin:  sha256:8dc668e7f66db1c044aadbed306020743516a94848793e0f81f94a087ee78cab
-
-  Type: docker-image
-  Ref:  docker.io/tonistiigi/xx@sha256:21a61be4744f6531cb5f33b0e6f40ede41fa3a1b8c82d5946178f80cc84bfc04
-  Pin:  sha256:21a61be4744f6531cb5f33b0e6f40ede41fa3a1b8c82d5946178f80cc84bfc04
-
-  Type: http
-  Ref:  https://raw.githubusercontent.com/moby/moby/master/README.md
-  Pin:  sha256:419455202b0ef97e480d7f8199b26a721a417818bc0e2d106975f74323f25e6c
-```
-
 #### JSON output
 
 A `json` go template func is also available if you want to render fields as
@@ -166,7 +132,7 @@ $ docker buildx imagetools inspect crazymax/loop --format "{{json .Manifest}}"
 ```json
 {
   "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-  "digest": "sha256:08602e7340970e92bde5e0a2e887c1fde4d9ae753d1e05efb4c8ef3b609f97f1",
+  "digest": "sha256:a9ca35b798e0b198f9be7f3b8b53982e9a6cf96814cb10d78083f40ad8c127f1",
   "size": 949
 }
 ```
@@ -177,23 +143,23 @@ $ docker buildx imagetools inspect moby/buildkit:master --format "{{json .Manife
 ```json
 {
   "schemaVersion": 2,
-  "mediaType": "application/vnd.docker.distribution.manifest.list.v2+json",
-  "digest": "sha256:79d97f205e2799d99a3a8ae2a1ef17acb331e11784262c3faada847dc6972c52",
-  "size": 2010,
+  "mediaType": "application/vnd.oci.image.index.v1+json",
+  "digest": "sha256:d895e8fdcf5e2bb39acb5966f97fc4cd87a2d13d27c939c320025eb4aca5440c",
+  "size": 4654,
   "manifests": [
     {
-      "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-      "digest": "sha256:bd1e78f06de26610fadf4eb9d04b1a45a545799d6342701726e952cc0c11c912",
-      "size": 1158,
+      "mediaType": "application/vnd.oci.image.manifest.v1+json",
+      "digest": "sha256:ac9dd4fbec9e36b562f910618975a2936533f8e411a3fea2858aacc0ac972e1c",
+      "size": 1054,
       "platform": {
         "architecture": "amd64",
         "os": "linux"
       }
     },
     {
-      "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-      "digest": "sha256:d37dcced63ec0965824fca644f0ac9efad8569434ec15b4c83adfcb3dcfc743b",
-      "size": 1158,
+      "mediaType": "application/vnd.oci.image.manifest.v1+json",
+      "digest": "sha256:0f4dc6797db467372cbf52c7236816203654a839f64a6542c9135d1973c9d744",
+      "size": 1054,
       "platform": {
         "architecture": "arm",
         "os": "linux",
@@ -201,260 +167,356 @@ $ docker buildx imagetools inspect moby/buildkit:master --format "{{json .Manife
       }
     },
     {
-      "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-      "digest": "sha256:ce142eb2255e6af46f2809e159fd03081697c7605a3de03b9cbe9a52ddb244bf",
-      "size": 1158,
+      "mediaType": "application/vnd.oci.image.manifest.v1+json",
+      "digest": "sha256:d62bb533d95afe17c4a9caf1e7c57a3b0a7a67409ccfa7af947aeb0f670ffb87",
+      "size": 1054,
       "platform": {
         "architecture": "arm64",
         "os": "linux"
       }
     },
     {
-      "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-      "digest": "sha256:f59bfb5062fff76ce464bfa4e25ebaaaac887d6818238e119d68613c456d360c",
-      "size": 1158,
+      "mediaType": "application/vnd.oci.image.manifest.v1+json",
+      "digest": "sha256:b4944057e0c68203cdcc3dceff3b2df3c7d9e3dd801724fa977b01081da7771e",
+      "size": 1054,
       "platform": {
         "architecture": "s390x",
         "os": "linux"
       }
     },
     {
-      "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-      "digest": "sha256:cc96426e0c50a78105d5637d31356db5dd6ec594f21b24276e534a32da09645c",
-      "size": 1159,
+      "mediaType": "application/vnd.oci.image.manifest.v1+json",
+      "digest": "sha256:825702a51eb4234904fc9253d8b0bf0a584787ffd8fc3fd6fa374188233ce399",
+      "size": 1054,
       "platform": {
         "architecture": "ppc64le",
         "os": "linux"
       }
     },
     {
-      "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-      "digest": "sha256:39f9c1e2878e6c333acb23187d6b205ce82ed934c60da326cb2c698192631478",
-      "size": 1158,
+      "mediaType": "application/vnd.oci.image.manifest.v1+json",
+      "digest": "sha256:dfb27c6acc9b9f3a7c9d47366d137089565062f43c8063c9f5e408d34c87ee4a",
+      "size": 1054,
       "platform": {
         "architecture": "riscv64",
         "os": "linux"
       }
+    },
+    {
+      "mediaType": "application/vnd.oci.image.manifest.v1+json",
+      "digest": "sha256:f2fe69bccc878e658caf21dfc99eaf726fb20d28f17398c1d66a90e62cc019f9",
+      "size": 1113,
+      "annotations": {
+        "vnd.docker.reference.digest": "sha256:ac9dd4fbec9e36b562f910618975a2936533f8e411a3fea2858aacc0ac972e1c",
+        "vnd.docker.reference.type": "attestation-manifest"
+      },
+      "platform": {
+        "architecture": "unknown",
+        "os": "unknown"
+      }
+    },
+    {
+      "mediaType": "application/vnd.oci.image.manifest.v1+json",
+      "digest": "sha256:9e112f8d4e383186f36369fba7b454e246d2e9ca5def797f1b84ede265e9f3ca",
+      "size": 1113,
+      "annotations": {
+        "vnd.docker.reference.digest": "sha256:0f4dc6797db467372cbf52c7236816203654a839f64a6542c9135d1973c9d744",
+        "vnd.docker.reference.type": "attestation-manifest"
+      },
+      "platform": {
+        "architecture": "unknown",
+        "os": "unknown"
+      }
+    },
+    {
+      "mediaType": "application/vnd.oci.image.manifest.v1+json",
+      "digest": "sha256:09d593587f8665269ec6753eaed7fbdb09968f71587dd53e06519502cbc16775",
+      "size": 1113,
+      "annotations": {
+        "vnd.docker.reference.digest": "sha256:d62bb533d95afe17c4a9caf1e7c57a3b0a7a67409ccfa7af947aeb0f670ffb87",
+        "vnd.docker.reference.type": "attestation-manifest"
+      },
+      "platform": {
+        "architecture": "unknown",
+        "os": "unknown"
+      }
+    },
+    {
+      "mediaType": "application/vnd.oci.image.manifest.v1+json",
+      "digest": "sha256:985a3f4544dfb042db6a8703f5f76438667dd7958aba14cb04bebe3b4cbd9307",
+      "size": 1113,
+      "annotations": {
+        "vnd.docker.reference.digest": "sha256:b4944057e0c68203cdcc3dceff3b2df3c7d9e3dd801724fa977b01081da7771e",
+        "vnd.docker.reference.type": "attestation-manifest"
+      },
+      "platform": {
+        "architecture": "unknown",
+        "os": "unknown"
+      }
+    },
+    {
+      "mediaType": "application/vnd.oci.image.manifest.v1+json",
+      "digest": "sha256:cfccb6afeede7dc29bf8abef4815d56f2723fa482ea63c9cd519cd991c379294",
+      "size": 1113,
+      "annotations": {
+        "vnd.docker.reference.digest": "sha256:825702a51eb4234904fc9253d8b0bf0a584787ffd8fc3fd6fa374188233ce399",
+        "vnd.docker.reference.type": "attestation-manifest"
+      },
+      "platform": {
+        "architecture": "unknown",
+        "os": "unknown"
+      }
+    },
+    {
+      "mediaType": "application/vnd.oci.image.manifest.v1+json",
+      "digest": "sha256:2e93733432c6a14cb57db33928b3a17d7ca298b3babe24d9f56dca2754dbde3b",
+      "size": 1113,
+      "annotations": {
+        "vnd.docker.reference.digest": "sha256:dfb27c6acc9b9f3a7c9d47366d137089565062f43c8063c9f5e408d34c87ee4a",
+        "vnd.docker.reference.type": "attestation-manifest"
+      },
+      "platform": {
+        "architecture": "unknown",
+        "os": "unknown"
+      }
     }
   ]
 }
 ```
 
+Following command provides [SLSA](https://github.com/moby/buildkit/blob/master/docs/attestations/slsa-provenance.md) JSON output:
+
 ```console
-$ docker buildx imagetools inspect crazymax/buildx:buildinfo --format "{{json .BuildInfo}}"
+$ docker buildx imagetools inspect crazymax/buildkit:attest --format "{{json .Provenance}}"
 ```
 ```json
 {
-  "frontend": "dockerfile.v0",
-  "attrs": {
-    "build-arg:bar": "foo",
-    "build-arg:foo": "bar",
-    "filename": "Dockerfile",
-    "source": "crazymax/dockerfile:buildattrs"
-  },
-  "sources": [
-    {
-      "type": "docker-image",
-      "ref": "docker.io/docker/buildx-bin:0.6.1@sha256:a652ced4a4141977c7daaed0a074dcd9844a78d7d2615465b12f433ae6dd29f0",
-      "pin": "sha256:a652ced4a4141977c7daaed0a074dcd9844a78d7d2615465b12f433ae6dd29f0"
+  "SLSA": {
+    "builder": {
+      "id": ""
     },
-    {
-      "type": "docker-image",
-      "ref": "docker.io/library/alpine:3.13@sha256:026f721af4cf2843e07bba648e158fb35ecc876d822130633cc49f707f0fc88c",
-      "pin": "sha256:026f721af4cf2843e07bba648e158fb35ecc876d822130633cc49f707f0fc88c"
+    "buildType": "https://mobyproject.org/buildkit@v1",
+    "materials": [
+      {
+        "uri": "pkg:docker/docker/buildkit-syft-scanner@stable-1",
+        "digest": {
+          "sha256": "b45f1d207e16c3a3a5a10b254ad8ad358d01f7ea090d382b95c6b2ee2b3ef765"
+        }
+      },
+      {
+        "uri": "pkg:docker/alpine@latest?platform=linux%2Famd64",
+        "digest": {
+          "sha256": "8914eb54f968791faf6a8638949e480fef81e697984fba772b3976835194c6d4"
+        }
+      }
+    ],
+    "invocation": {
+      "configSource": {},
+      "parameters": {
+        "frontend": "dockerfile.v0",
+        "locals": [
+          {
+            "name": "context"
+          },
+          {
+            "name": "dockerfile"
+          }
+        ]
+      },
+      "environment": {
+        "platform": "linux/amd64"
+      }
     },
-    {
-      "type": "docker-image",
-      "ref": "docker.io/moby/buildkit:v0.9.0@sha256:8dc668e7f66db1c044aadbed306020743516a94848793e0f81f94a087ee78cab",
-      "pin": "sha256:8dc668e7f66db1c044aadbed306020743516a94848793e0f81f94a087ee78cab"
-    },
-    {
-      "type": "docker-image",
-      "ref": "docker.io/tonistiigi/xx@sha256:21a61be4744f6531cb5f33b0e6f40ede41fa3a1b8c82d5946178f80cc84bfc04",
-      "pin": "sha256:21a61be4744f6531cb5f33b0e6f40ede41fa3a1b8c82d5946178f80cc84bfc04"
-    },
-    {
-      "type": "http",
-      "ref": "https://raw.githubusercontent.com/moby/moby/master/README.md",
-      "pin": "sha256:419455202b0ef97e480d7f8199b26a721a417818bc0e2d106975f74323f25e6c"
+    "metadata": {
+      "buildInvocationID": "02tdha2xkbxvin87mz9drhag4",
+      "buildStartedOn": "2022-12-01T11:50:07.264704131Z",
+      "buildFinishedOn": "2022-12-01T11:50:08.243788739Z",
+      "reproducible": false,
+      "completeness": {
+        "parameters": true,
+        "environment": true,
+        "materials": false
+      },
+      "https://mobyproject.org/buildkit@v1#metadata": {}
     }
-  ]
+  }
+}
+```
+
+Following command provides [SBOM](https://github.com/moby/buildkit/blob/master/docs/attestations/sbom.md) JSON output:
+
+```console
+$ docker buildx imagetools inspect crazymax/buildkit:attest --format "{{json .SBOM}}"
+```
+```json
+{
+  "SPDX": {
+    "SPDXID": "SPDXRef-DOCUMENT",
+    "creationInfo": {
+      "created": "2022-12-01T11:46:48.063400162Z",
+      "creators": [
+        "Tool: syft-v0.60.3",
+        "Tool: buildkit-1ace2bb",
+        "Organization: Anchore, Inc"
+      ],
+      "licenseListVersion": "3.18"
+    },
+    "dataLicense": "CC0-1.0",
+    "documentNamespace": "https://anchore.com/syft/dir/run/src/core-0a4ccc6d-1a72-4c3a-a40e-3df1a2ffca94",
+    "files": [...],
+    "spdxVersion": "SPDX-2.2"
+  }
 }
 ```
 
 ```console
-$ docker buildx imagetools inspect crazymax/buildx:buildinfo --format "{{json .}}"
+$ docker buildx imagetools inspect crazymax/buildkit:attest --format "{{json .}}"
 ```
 ```json
 {
-  "name": "crazymax/buildx:buildinfo",
+  "name": "crazymax/buildkit:attest",
   "manifest": {
-    "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-    "digest": "sha256:899d2c7acbc124d406820857bb51d9089717bbe4e22b97eb4bc5789e99f09f83",
-    "size": 2628
+    "schemaVersion": 2,
+    "mediaType": "application/vnd.oci.image.index.v1+json",
+    "digest": "sha256:7007b387ccd52bd42a050f2e8020e56e64622c9269bf7bbe257b326fe99daf19",
+    "size": 855,
+    "manifests": [
+      {
+        "mediaType": "application/vnd.oci.image.manifest.v1+json",
+        "digest": "sha256:fbd10fe50b4b174bb9ea273e2eb9827fa8bf5c88edd8635a93dc83e0d1aecb55",
+        "size": 673,
+        "platform": {
+          "architecture": "amd64",
+          "os": "linux"
+        }
+      },
+      {
+        "mediaType": "application/vnd.oci.image.manifest.v1+json",
+        "digest": "sha256:a9de632c16998489fd63fbca42a03431df00639cfb2ecb8982bf9984b83c5b2b",
+        "size": 839,
+        "annotations": {
+          "vnd.docker.reference.digest": "sha256:fbd10fe50b4b174bb9ea273e2eb9827fa8bf5c88edd8635a93dc83e0d1aecb55",
+          "vnd.docker.reference.type": "attestation-manifest"
+        },
+        "platform": {
+          "architecture": "unknown",
+          "os": "unknown"
+        }
+      }
+    ]
   },
   "image": {
-    "created": "2022-02-24T12:27:43.627154558Z",
+    "created": "2022-12-01T11:46:47.713777178Z",
     "architecture": "amd64",
     "os": "linux",
     "config": {
       "Env": [
-        "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
-        "DOCKER_TLS_CERTDIR=/certs",
-        "DOCKER_CLI_EXPERIMENTAL=enabled"
-      ],
-      "Entrypoint": [
-        "docker-entrypoint.sh"
+        "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
       ],
       "Cmd": [
-        "sh"
+        "/bin/sh"
       ]
     },
     "rootfs": {
       "type": "layers",
       "diff_ids": [
-        "sha256:7fcb75871b2101082203959c83514ac8a9f4ecfee77a0fe9aa73bbe56afdf1b4",
-        "sha256:d3c0b963ff5684160641f936d6a4aa14efc8ff27b6edac255c07f2d03ff92e82",
-        "sha256:3f8d78f13fa9b1f35d3bc3f1351d03a027c38018c37baca73f93eecdea17f244",
-        "sha256:8e6eb1137b182ae0c3f5d40ca46341fda2eaeeeb5fa516a9a2bf96171238e2e0",
-        "sha256:fde4c869a56b54dd76d7352ddaa813fd96202bda30b9dceb2c2f2ad22fa2e6ce",
-        "sha256:52025823edb284321af7846419899234b3c66219bf06061692b709875ed0760f",
-        "sha256:50adb5982dbf6126c7cf279ac3181d1e39fc9116b610b947a3dadae6f7e7c5bc",
-        "sha256:9801c319e1c66c5d295e78b2d3e80547e73c7e3c63a4b71e97c8ca357224af24",
-        "sha256:dfbfac44d5d228c49b42194c8a2f470abd6916d072f612a6fb14318e94fde8ae",
-        "sha256:3dfb74e19dedf61568b917c19b0fd3ee4580870027ca0b6054baf239855d1322",
-        "sha256:b182e707c23e4f19be73f9022a99d2d1ca7bf1ca8f280d40e4d1c10a6f51550e"
+        "sha256:ded7a220bb058e28ee3254fbba04ca90b679070424424761a53a043b93b612bf",
+        "sha256:d85d09ab4b4e921666ccc2db8532e857bf3476b7588e52c9c17741d7af14204f"
       ]
     },
     "history": [
       {
-        "created": "2021-11-12T17:19:58.698676655Z",
-        "created_by": "/bin/sh -c #(nop) ADD file:5a707b9d6cb5fff532e4c2141bc35707593f21da5528c9e71ae2ddb6ba4a4eb6 in / "
+        "created": "2022-11-22T22:19:28.870801855Z",
+        "created_by": "/bin/sh -c #(nop) ADD file:587cae71969871d3c6456d844a8795df9b64b12c710c275295a1182b46f630e7 in / "
       },
       {
-        "created": "2021-11-12T17:19:58.948920855Z",
+        "created": "2022-11-22T22:19:29.008562326Z",
         "created_by": "/bin/sh -c #(nop)  CMD [\"/bin/sh\"]",
         "empty_layer": true
       },
       {
-        "created": "2022-02-24T12:27:38.285594601Z",
-        "created_by": "RUN /bin/sh -c apk --update --no-cache add     bash     ca-certificates     openssh-client   \u0026\u0026 rm -rf /tmp/* /var/cache/apk/* # buildkit",
+        "created": "2022-12-01T11:46:47.713777178Z",
+        "created_by": "RUN /bin/sh -c apk add curl # buildkit",
         "comment": "buildkit.dockerfile.v0"
-      },
-      {
-        "created": "2022-02-24T12:27:41.061874167Z",
-        "created_by": "COPY /opt/docker/ /usr/local/bin/ # buildkit",
-        "comment": "buildkit.dockerfile.v0"
-      },
-      {
-        "created": "2022-02-24T12:27:41.174098947Z",
-        "created_by": "COPY /usr/bin/buildctl /usr/local/bin/buildctl # buildkit",
-        "comment": "buildkit.dockerfile.v0"
-      },
-      {
-        "created": "2022-02-24T12:27:41.320343683Z",
-        "created_by": "COPY /usr/bin/buildkit* /usr/local/bin/ # buildkit",
-        "comment": "buildkit.dockerfile.v0"
-      },
-      {
-        "created": "2022-02-24T12:27:41.447149933Z",
-        "created_by": "COPY /buildx /usr/libexec/docker/cli-plugins/docker-buildx # buildkit",
-        "comment": "buildkit.dockerfile.v0"
-      },
-      {
-        "created": "2022-02-24T12:27:43.057722191Z",
-        "created_by": "COPY /opt/docker-compose /usr/libexec/docker/cli-plugins/docker-compose # buildkit",
-        "comment": "buildkit.dockerfile.v0"
-      },
-      {
-        "created": "2022-02-24T12:27:43.145224134Z",
-        "created_by": "ADD https://raw.githubusercontent.com/moby/moby/master/README.md / # buildkit",
-        "comment": "buildkit.dockerfile.v0"
-      },
-      {
-        "created": "2022-02-24T12:27:43.422212427Z",
-        "created_by": "ENV DOCKER_TLS_CERTDIR=/certs",
-        "comment": "buildkit.dockerfile.v0",
-        "empty_layer": true
-      },
-      {
-        "created": "2022-02-24T12:27:43.422212427Z",
-        "created_by": "ENV DOCKER_CLI_EXPERIMENTAL=enabled",
-        "comment": "buildkit.dockerfile.v0",
-        "empty_layer": true
-      },
-      {
-        "created": "2022-02-24T12:27:43.422212427Z",
-        "created_by": "RUN /bin/sh -c docker --version   \u0026\u0026 buildkitd --version   \u0026\u0026 buildctl --version   \u0026\u0026 docker buildx version   \u0026\u0026 docker compose version   \u0026\u0026 mkdir /certs /certs/client   \u0026\u0026 chmod 1777 /certs /certs/client # buildkit",
-        "comment": "buildkit.dockerfile.v0"
-      },
-      {
-        "created": "2022-02-24T12:27:43.514320155Z",
-        "created_by": "COPY rootfs/modprobe.sh /usr/local/bin/modprobe # buildkit",
-        "comment": "buildkit.dockerfile.v0"
-      },
-      {
-        "created": "2022-02-24T12:27:43.627154558Z",
-        "created_by": "COPY rootfs/docker-entrypoint.sh /usr/local/bin/ # buildkit",
-        "comment": "buildkit.dockerfile.v0"
-      },
-      {
-        "created": "2022-02-24T12:27:43.627154558Z",
-        "created_by": "ENTRYPOINT [\"docker-entrypoint.sh\"]",
-        "comment": "buildkit.dockerfile.v0",
-        "empty_layer": true
-      },
-      {
-        "created": "2022-02-24T12:27:43.627154558Z",
-        "created_by": "CMD [\"sh\"]",
-        "comment": "buildkit.dockerfile.v0",
-        "empty_layer": true
       }
     ]
   },
-  "buildinfo": {
-    "frontend": "dockerfile.v0",
-    "attrs": {
-      "build-arg:bar": "foo",
-      "build-arg:foo": "bar",
-      "filename": "Dockerfile",
-      "source": "docker/dockerfile-upstream:master-labs"
-    },
-    "sources": [
-      {
-        "type": "docker-image",
-        "ref": "docker.io/docker/buildx-bin:0.6.1@sha256:a652ced4a4141977c7daaed0a074dcd9844a78d7d2615465b12f433ae6dd29f0",
-        "pin": "sha256:a652ced4a4141977c7daaed0a074dcd9844a78d7d2615465b12f433ae6dd29f0"
+  "Provenance": {
+    "SLSA": {
+      "builder": {
+        "id": ""
       },
-      {
-        "type": "docker-image",
-        "ref": "docker.io/library/alpine:3.13",
-        "pin": "sha256:026f721af4cf2843e07bba648e158fb35ecc876d822130633cc49f707f0fc88c"
+      "buildType": "https://mobyproject.org/buildkit@v1",
+      "materials": [
+        {
+          "uri": "pkg:docker/docker/buildkit-syft-scanner@stable-1",
+          "digest": {
+            "sha256": "b45f1d207e16c3a3a5a10b254ad8ad358d01f7ea090d382b95c6b2ee2b3ef765"
+          }
+        },
+        {
+          "uri": "pkg:docker/alpine@latest?platform=linux%2Famd64",
+          "digest": {
+            "sha256": "8914eb54f968791faf6a8638949e480fef81e697984fba772b3976835194c6d4"
+          }
+        }
+      ],
+      "invocation": {
+        "configSource": {},
+        "parameters": {
+          "frontend": "dockerfile.v0",
+          "locals": [
+            {
+              "name": "context"
+            },
+            {
+              "name": "dockerfile"
+            }
+          ]
+        },
+        "environment": {
+          "platform": "linux/amd64"
+        }
       },
-      {
-        "type": "docker-image",
-        "ref": "docker.io/moby/buildkit:v0.9.0",
-        "pin": "sha256:8dc668e7f66db1c044aadbed306020743516a94848793e0f81f94a087ee78cab"
-      },
-      {
-        "type": "docker-image",
-        "ref": "docker.io/tonistiigi/xx@sha256:21a61be4744f6531cb5f33b0e6f40ede41fa3a1b8c82d5946178f80cc84bfc04",
-        "pin": "sha256:21a61be4744f6531cb5f33b0e6f40ede41fa3a1b8c82d5946178f80cc84bfc04"
-      },
-      {
-        "type": "http",
-        "ref": "https://raw.githubusercontent.com/moby/moby/master/README.md",
-        "pin": "sha256:419455202b0ef97e480d7f8199b26a721a417818bc0e2d106975f74323f25e6c"
+      "metadata": {
+        "buildInvocationID": "02tdha2xkbxvin87mz9drhag4",
+        "buildStartedOn": "2022-12-01T11:50:07.264704131Z",
+        "buildFinishedOn": "2022-12-01T11:50:08.243788739Z",
+        "reproducible": false,
+        "completeness": {
+          "parameters": true,
+          "environment": true,
+          "materials": false
+        },
+        "https://mobyproject.org/buildkit@v1#metadata": {}
       }
-    ]
+    }
+  },
+  "SBOM": {
+    "SPDX": {
+      "SPDXID": "SPDXRef-DOCUMENT",
+      "creationInfo": {
+        "created": "2022-12-01T11:46:48.063400162Z",
+        "creators": [
+          "Tool: syft-v0.60.3",
+          "Tool: buildkit-1ace2bb",
+          "Organization: Anchore, Inc"
+        ],
+        "licenseListVersion": "3.18"
+      },
+      "dataLicense": "CC0-1.0",
+      "documentNamespace": "https://anchore.com/syft/dir/run/src/core-0a4ccc6d-1a72-4c3a-a40e-3df1a2ffca94",
+      "files": [...],
+      "spdxVersion": "SPDX-2.2"
+    }
   }
 }
 ```
 
 #### Multi-platform
 
-Multi-platform images are supported for `.Image` and `.BuildInfo` fields. If
-you want to pick up a specific platform, you can specify it using the `index`
+Multi-platform images are supported for `.Image`, `.SLSA` and `.SBOM` fields.
+If you want to pick up a specific platform, you can specify it using the `index`
 go template function:
 
 ```console
@@ -462,7 +524,7 @@ $ docker buildx imagetools inspect --format '{{json (index .Image "linux/s390x")
 ```
 ```json
 {
-  "created": "2022-02-25T17:13:27.89891722Z",
+  "created": "2022-11-30T17:42:26.414957336Z",
   "architecture": "s390x",
   "os": "linux",
   "config": {
@@ -481,8 +543,8 @@ $ docker buildx imagetools inspect --format '{{json (index .Image "linux/s390x")
     "diff_ids": [
       "sha256:41048e32d0684349141cf05f629c5fc3c5915d1f3426b66dbb8953a540e01e1e",
       "sha256:2651209b9208fff6c053bc3c17353cb07874e50f1a9bc96d6afd03aef63de76a",
-      "sha256:6741ed7e73039d853fa8902246a4c7e8bf9dd09652fd1b08251bc5f9e8876a7f",
-      "sha256:92ac046adeeb65c86ae3f0b458dee04ad4a462e417661c04d77642c66494f69b"
+      "sha256:88577322e65f094ce8ac27435880f1a8a9baadb569258026bb141770451bafcb",
+      "sha256:de8f9a790e4ed10ff1f1f8ea923c9da4f97246a7e200add2dc6650eba3f10a20"
     ]
   },
   "history": [
@@ -501,23 +563,23 @@ $ docker buildx imagetools inspect --format '{{json (index .Image "linux/s390x")
       "comment": "buildkit.dockerfile.v0"
     },
     {
-      "created": "2022-02-24T00:34:00.924540012Z",
+      "created": "2022-08-25T00:39:25.652811078Z",
       "created_by": "COPY examples/buildctl-daemonless/buildctl-daemonless.sh /usr/bin/ # buildkit",
       "comment": "buildkit.dockerfile.v0"
     },
     {
-      "created": "2022-02-25T17:13:27.89891722Z",
+      "created": "2022-11-30T17:42:26.414957336Z",
       "created_by": "VOLUME [/var/lib/buildkit]",
       "comment": "buildkit.dockerfile.v0",
       "empty_layer": true
     },
     {
-      "created": "2022-02-25T17:13:27.89891722Z",
+      "created": "2022-11-30T17:42:26.414957336Z",
       "created_by": "COPY / /usr/bin/ # buildkit",
       "comment": "buildkit.dockerfile.v0"
     },
     {
-      "created": "2022-02-25T17:13:27.89891722Z",
+      "created": "2022-11-30T17:42:26.414957336Z",
       "created_by": "ENTRYPOINT [\"buildkitd\"]",
       "comment": "buildkit.dockerfile.v0",
       "empty_layer": true
@@ -541,24 +603,24 @@ $ docker buildx imagetools inspect --raw crazymax/loop | jq
   "schemaVersion": 2,
   "config": {
     "mediaType": "application/vnd.docker.container.image.v1+json",
-    "digest": "sha256:7ace7d324e79b360b2db8b820d83081863d96d22e734cdf297a8e7fd83f6ceb3",
-    "size": 2298
+    "digest": "sha256:a98999183d2c7a8845f6d56496e51099ce6e4359ee7255504174b05430c4b78b",
+    "size": 2762
   },
   "layers": [
     {
       "mediaType": "application/vnd.docker.image.rootfs.diff.tar.gzip",
-      "digest": "sha256:5843afab387455b37944e709ee8c78d7520df80f8d01cf7f861aae63beeddb6b",
-      "size": 2811478
+      "digest": "sha256:8663204ce13b2961da55026a2034abb9e5afaaccf6a9cfb44ad71406dcd07c7b",
+      "size": 2818370
     },
     {
       "mediaType": "application/vnd.docker.image.rootfs.diff.tar.gzip",
-      "digest": "sha256:726d3732a87e1c430d67e8969de6b222a889d45e045ebae1a008a37ba38f3b1f",
-      "size": 1776812
+      "digest": "sha256:f0868a92f8e1e5018ed4e60eb845ed4ff0e2229897f4105e5a4735c1d6fd874f",
+      "size": 1821402
     },
     {
       "mediaType": "application/vnd.docker.image.rootfs.diff.tar.gzip",
-      "digest": "sha256:5d7cf9b33148a8f220c84f27dd2cfae46aca019a3ea3fbf7274f6d6dbfae8f3b",
-      "size": 382855
+      "digest": "sha256:d010066dbdfcf7c12fca30cd4b567aa7218eb6762ab53169d043655b7a8d7f2e",
+      "size": 404457
     }
   ]
 }
@@ -574,7 +636,7 @@ $ docker buildx imagetools inspect --raw moby/buildkit:master | jq
   "manifests": [
     {
       "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-      "digest": "sha256:667d28c9fb33820ce686887a717a148e89fa77f9097f9352996bbcce99d352b1",
+      "digest": "sha256:f9f41c85124686c2afe330a985066748a91d7a5d505777fe274df804ab5e077e",
       "size": 1158,
       "platform": {
         "architecture": "amd64",
@@ -583,7 +645,7 @@ $ docker buildx imagetools inspect --raw moby/buildkit:master | jq
     },
     {
       "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-      "digest": "sha256:71789527b64ab3d7b3de01d364b449cd7f7a3da758218fbf73b9c9aae05a6775",
+      "digest": "sha256:82097c2be19c617aafb3c3e43c88548738d4b2bf3db5c36666283a918b390266",
       "size": 1158,
       "platform": {
         "architecture": "arm",
@@ -593,7 +655,7 @@ $ docker buildx imagetools inspect --raw moby/buildkit:master | jq
     },
     {
       "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-      "digest": "sha256:fb64667e1ce6ab0d05478f3a8402af07b27737598dcf9a510fb1d792b13a66be",
+      "digest": "sha256:b6b91e6c823d7220ded7d3b688e571ba800b13d91bbc904c1d8053593e3ee42c",
       "size": 1158,
       "platform": {
         "architecture": "arm64",
@@ -602,7 +664,7 @@ $ docker buildx imagetools inspect --raw moby/buildkit:master | jq
     },
     {
       "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-      "digest": "sha256:1c3ddf95a0788e23f72f25800c05abc4458946685e2b66788c3d978cde6da92b",
+      "digest": "sha256:797061bcc16778de048b96f769c018ec24da221088050bbe926ea3b8d51d77e8",
       "size": 1158,
       "platform": {
         "architecture": "s390x",
@@ -611,7 +673,7 @@ $ docker buildx imagetools inspect --raw moby/buildkit:master | jq
     },
     {
       "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-      "digest": "sha256:05bcde6d460a284e5bc88026cd070277e8380355de3126cbc8fe8a452708c6b1",
+      "digest": "sha256:b93d3a84d18c4d0b8c279e77343d854d9b5177df7ea55cf468d461aa2523364e",
       "size": 1159,
       "platform": {
         "architecture": "ppc64le",
@@ -620,7 +682,7 @@ $ docker buildx imagetools inspect --raw moby/buildkit:master | jq
     },
     {
       "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
-      "digest": "sha256:c04c57765304ab84f4f9807fff3e11605c3a60e16435c734b02c723680f6bd6e",
+      "digest": "sha256:d5c950dd1b270d437c838187112a0cb44c9258248d7a3a8bcb42fae8f717dc01",
       "size": 1158,
       "platform": {
         "architecture": "riscv64",

docs/reference/buildx_inspect.md

@@ -9,10 +9,10 @@ Inspect current builder instance
 
 ### Options
 
-| Name | Type | Default | Description |
-| --- | --- | --- | --- |
-| [`--bootstrap`](#bootstrap) |  |  | Ensure builder has booted before inspecting |
-| [`--builder`](#builder) | `string` |  | Override the configured builder instance |
+| Name                        | Type     | Default | Description                                 |
+|:----------------------------|:---------|:--------|:--------------------------------------------|
+| [`--bootstrap`](#bootstrap) |          |         | Ensure builder has booted before inspecting |
+| [`--builder`](#builder)     | `string` |         | Override the configured builder instance    |
 
 
 <!---MARKER_GEN_END-->

docs/reference/buildx_prune.md

@@ -9,14 +9,14 @@ Remove build cache
 
 ### Options
 
-| Name | Type | Default | Description |
-| --- | --- | --- | --- |
-| `-a`, `--all` |  |  | Include internal/frontend images |
-| [`--builder`](#builder) | `string` |  | Override the configured builder instance |
-| `--filter` | `filter` |  | Provide filter values (e.g., `until=24h`) |
-| `-f`, `--force` |  |  | Do not prompt for confirmation |
-| `--keep-storage` | `bytes` | `0` | Amount of disk space to keep for cache |
-| `--verbose` |  |  | Provide a more verbose output |
+| Name                    | Type     | Default | Description                               |
+|:------------------------|:---------|:--------|:------------------------------------------|
+| `-a`, `--all`           |          |         | Include internal/frontend images          |
+| [`--builder`](#builder) | `string` |         | Override the configured builder instance  |
+| `--filter`              | `filter` |         | Provide filter values (e.g., `until=24h`) |
+| `-f`, `--force`         |          |         | Do not prompt for confirmation            |
+| `--keep-storage`        | `bytes`  | `0`     | Amount of disk space to keep for cache    |
+| `--verbose`             |          |         | Provide a more verbose output             |
 
 
 <!---MARKER_GEN_END-->

docs/reference/buildx_rm.md

@@ -9,13 +9,13 @@ Remove a builder instance
 
 ### Options
 
-| Name | Type | Default | Description |
-| --- | --- | --- | --- |
-| [`--all-inactive`](#all-inactive) |  |  | Remove all inactive builders |
-| [`--builder`](#builder) | `string` |  | Override the configured builder instance |
-| [`-f`](#force), [`--force`](#force) |  |  | Do not prompt for confirmation |
-| [`--keep-daemon`](#keep-daemon) |  |  | Keep the buildkitd daemon running |
-| [`--keep-state`](#keep-state) |  |  | Keep BuildKit state |
+| Name                                | Type     | Default | Description                              |
+|:------------------------------------|:---------|:--------|:-----------------------------------------|
+| [`--all-inactive`](#all-inactive)   |          |         | Remove all inactive builders             |
+| [`--builder`](#builder)             | `string` |         | Override the configured builder instance |
+| [`-f`](#force), [`--force`](#force) |          |         | Do not prompt for confirmation           |
+| [`--keep-daemon`](#keep-daemon)     |          |         | Keep the buildkitd daemon running        |
+| [`--keep-state`](#keep-state)       |          |         | Keep BuildKit state                      |
 
 
 <!---MARKER_GEN_END-->

docs/reference/buildx_stop.md

@@ -9,9 +9,9 @@ Stop builder instance
 
 ### Options
 
-| Name | Type | Default | Description |
-| --- | --- | --- | --- |
-| [`--builder`](#builder) | `string` |  | Override the configured builder instance |
+| Name                    | Type     | Default | Description                              |
+|:------------------------|:---------|:--------|:-----------------------------------------|
+| [`--builder`](#builder) | `string` |         | Override the configured builder instance |
 
 
 <!---MARKER_GEN_END-->

docs/reference/buildx_use.md

@@ -9,11 +9,11 @@ Set the current builder instance
 
 ### Options
 
-| Name | Type | Default | Description |
-| --- | --- | --- | --- |
-| [`--builder`](#builder) | `string` |  | Override the configured builder instance |
-| `--default` |  |  | Set builder as default for current context |
-| `--global` |  |  | Builder persists context changes |
+| Name                    | Type     | Default | Description                                |
+|:------------------------|:---------|:--------|:-------------------------------------------|
+| [`--builder`](#builder) | `string` |         | Override the configured builder instance   |
+| `--default`             |          |         | Set builder as default for current context |
+| `--global`              |          |         | Builder persists context changes           |
 
 
 <!---MARKER_GEN_END-->

go.mod

@@ -6,17 +6,18 @@ require (
 	github.com/aws/aws-sdk-go-v2/config v1.15.5
 	github.com/compose-spec/compose-go v1.6.0
 	github.com/containerd/console v1.0.3
-	github.com/containerd/containerd v1.6.11
-	github.com/docker/cli v23.0.0-beta.1+incompatible
-	github.com/docker/cli-docs-tool v0.5.0
+	github.com/containerd/containerd v1.6.16-0.20230124210447-1709cfe273d9
+	github.com/docker/cli v23.0.0-rc.1+incompatible
+	github.com/docker/cli-docs-tool v0.5.1
 	github.com/docker/distribution v2.8.1+incompatible
-	github.com/docker/docker v23.0.0-beta.1+incompatible
+	github.com/docker/docker v23.0.0-rc.1+incompatible
 	github.com/docker/go-units v0.5.0
 	github.com/gofrs/flock v0.8.1
 	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510
 	github.com/hashicorp/go-cty-funcs v0.0.0-20200930094925-2721b1e36840
 	github.com/hashicorp/hcl/v2 v2.8.2
-	github.com/moby/buildkit v0.11.0-rc1.0.20221213193744-862b22d7e7cf
+	github.com/moby/buildkit v0.11.2
+	github.com/moby/sys/mountinfo v0.6.2
 	github.com/morikuni/aec v1.0.0
 	github.com/opencontainers/go-digest v1.0.0
 	github.com/opencontainers/image-spec v1.0.3-0.20220303224323-02efb9a75ee1
@@ -131,7 +132,7 @@ require (
 	github.com/rogpeppe/go-internal v1.8.1 // indirect
 	github.com/spf13/viper v1.14.0 // indirect
 	github.com/theupdateframework/notary v0.6.1 // indirect
-	github.com/tonistiigi/fsutil v0.0.0-20221114235510-0127568185cf // indirect
+	github.com/tonistiigi/fsutil v0.0.0-20230105215944-fb433841cbfa // indirect
 	github.com/tonistiigi/units v0.0.0-20180711220420-6950e57a87ea // indirect
 	github.com/tonistiigi/vt100 v0.0.0-20210615222946-8066bb97264f // indirect
 	github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f // indirect

go.sum

@@ -57,7 +57,7 @@ github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/Microsoft/go-winio v0.5.2 h1:a9IhgEQBCUEk6QCdml9CiJGhAws+YwffDHEMp1VMrpA=
 github.com/Microsoft/go-winio v0.5.2/go.mod h1:WpS1mjBmmwHBEWmogvA2mj8546UReBk4v8QkMxJ6pZY=
-github.com/Microsoft/hcsshim v0.9.5 h1:AbV+VPfTrIVffukazHcpxmz/sRiE6YaMDzHWR9BXZHo=
+github.com/Microsoft/hcsshim v0.9.6 h1:VwnDOgLeoi2du6dAznfmspNqTiwczvjv4K7NxuY9jsY=
 github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
 github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
 github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
@@ -140,8 +140,8 @@ github.com/compose-spec/compose-go v1.6.0/go.mod h1:os+Ulh2jlZxY1XT1hbciERadjSUU
 github.com/containerd/cgroups v1.0.4 h1:jN/mbWBEaz+T1pi5OFtnkQ+8qnmEbAr1Oo1FRm5B0dA=
 github.com/containerd/console v1.0.3 h1:lIr7SlA5PxZyMV30bDW0MGbiOPXwc63yRuCP0ARubLw=
 github.com/containerd/console v1.0.3/go.mod h1:7LqA/THxQ86k76b8c/EMSiaJ3h1eZkMkXar0TQ1gf3U=
-github.com/containerd/containerd v1.6.11 h1:uIn0uKrRhETIPyAb0lz6WY2xhYBObUOF1bBi5rqZ5x4=
-github.com/containerd/containerd v1.6.11/go.mod h1:K4Bw7gjgh4TnkmQY+py/PYQGp4e7xgnHAeg87VeWb3A=
+github.com/containerd/containerd v1.6.16-0.20230124210447-1709cfe273d9 h1:zdFesNKUzj0PDylWScwyU6zv3KAKwYeSE1ZLUmi01wk=
+github.com/containerd/containerd v1.6.16-0.20230124210447-1709cfe273d9/go.mod h1:1RdCUu95+gc2v9t3IL+zIlpClSmew7/0YS8O5eQZrOw=
 github.com/containerd/continuity v0.3.0 h1:nisirsYROK15TAMVukJOUyGJjz4BNQJBVsNvAXZJ/eg=
 github.com/containerd/continuity v0.3.0/go.mod h1:wJEAIwKOm/pBZuBd0JmeTvnLquTB1Ag8espWhkykbPM=
 github.com/containerd/fifo v1.0.0 h1:6PirWBr9/L7GDamKr+XM0IeUFXu5mf3M/BPpH9gaLBU=
@@ -163,14 +163,14 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/distribution/distribution/v3 v3.0.0-20220725133111-4bf3547399eb h1:oCCuuU3kMO3sjZH/p7LamvQNW9SWoT4yQuMGcdSxGAE=
 github.com/distribution/distribution/v3 v3.0.0-20220725133111-4bf3547399eb/go.mod h1:28YO/VJk9/64+sTGNuYaBjWxrXTPrj0C0XmgTIOjxX4=
-github.com/docker/cli v23.0.0-beta.1+incompatible h1:K9CMaN5nHB1eu2f02PURnJhlPhWuFl0s9mL3kildAtE=
-github.com/docker/cli v23.0.0-beta.1+incompatible/go.mod h1:JLrzqnKDaYBop7H2jaqPtU4hHvMKP+vjCwu2uszcLI8=
-github.com/docker/cli-docs-tool v0.5.0 h1:EjGwI6EyB7YemHCC7R8mwXszJTbuq0T0pFuDC5bMhcE=
-github.com/docker/cli-docs-tool v0.5.0/go.mod h1:zMjqTFCU361PRh8apiXzeAZ1Q/xupbIwTusYpzCXS/o=
+github.com/docker/cli v23.0.0-rc.1+incompatible h1:Vl3pcUK4/LFAD56Ys3BrqgAtuwpWd/IO3amuSL0ZbP0=
+github.com/docker/cli v23.0.0-rc.1+incompatible/go.mod h1:JLrzqnKDaYBop7H2jaqPtU4hHvMKP+vjCwu2uszcLI8=
+github.com/docker/cli-docs-tool v0.5.1 h1:jIk/cCZurZERhALPVKhqlNxTQGxn2kcI+56gE57PQXg=
+github.com/docker/cli-docs-tool v0.5.1/go.mod h1:zMjqTFCU361PRh8apiXzeAZ1Q/xupbIwTusYpzCXS/o=
 github.com/docker/distribution v2.8.1+incompatible h1:Q50tZOPR6T/hjNsyc9g8/syEs6bk8XXApsHjKukMl68=
 github.com/docker/distribution v2.8.1+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
-github.com/docker/docker v23.0.0-beta.1+incompatible h1:0Xv+AFPWxTbmohdLK57pYRPmefCKthtfRF/qQwXHolg=
-github.com/docker/docker v23.0.0-beta.1+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/docker/docker v23.0.0-rc.1+incompatible h1:Dmn88McWuHc7BSNN1s6RtfhMmt6ZPQAYUEf7FhqpiQI=
+github.com/docker/docker v23.0.0-rc.1+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
 github.com/docker/docker-credential-helpers v0.7.0 h1:xtCHsjxogADNZcdv1pKUHXryefjlVRqWqIhk/uXJp0A=
 github.com/docker/docker-credential-helpers v0.7.0/go.mod h1:rETQfLdHNT3foU5kuNkFR1R1V12OJRRO5lzt2D1b5X0=
 github.com/docker/go v1.5.1-1.0.20160303222718-d30aec9fd63c h1:lzqkGL9b3znc+ZUgi7FlLnqjQhcXxkNM/quxIjBVMD0=
@@ -345,7 +345,7 @@ github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:
 github.com/imdario/mergo v0.3.5/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
 github.com/imdario/mergo v0.3.13 h1:lFzP57bqS/wsqKssCGmtLAb8A0wKjLGrve2q3PPVcBk=
 github.com/imdario/mergo v0.3.13/go.mod h1:4lJ1jqUDcsbIECGy0RUJAXNIhg+6ocWgb1ALK2O4oXg=
-github.com/in-toto/in-toto-golang v0.3.4-0.20220709202702-fa494aaa0add h1:DAh7mHiRT7wc6kKepYdCpH16ElPciMPQWJaJ7H3l/ng=
+github.com/in-toto/in-toto-golang v0.5.0 h1:hb8bgwr0M2hGdDsLjkJ3ZqJ8JFLL/tgYdAxF/XEFBbY=
 github.com/inconshreveable/mousetrap v1.0.1 h1:U3uMjPSQEBMNp1lFxmllqCPM6P5u/Xq7Pgzkat/bFNc=
 github.com/inconshreveable/mousetrap v1.0.1/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/jinzhu/gorm v1.9.2 h1:lCvgEaqe/HVE+tjAR2mt4HbbHAZsQOv3XAZiEZV37iw=
@@ -401,8 +401,8 @@ github.com/mitchellh/go-wordwrap v0.0.0-20150314170334-ad45545899c7/go.mod h1:ZX
 github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
 github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
 github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
-github.com/moby/buildkit v0.11.0-rc1.0.20221213193744-862b22d7e7cf h1:X4p2o1QeaKAJ8prPctFx98UrokFHsUgbiC0lDUObpOk=
-github.com/moby/buildkit v0.11.0-rc1.0.20221213193744-862b22d7e7cf/go.mod h1:f3jvilDvcG14z+gzPpA2lcWRwIRyFiNTo5bMwHiYDk0=
+github.com/moby/buildkit v0.11.2 h1:hNNsYuRssvFnp/qJ8FifStEUzROl5riPAEwk7cRzMjg=
+github.com/moby/buildkit v0.11.2/go.mod h1:b5hR8j3BZaOj5+gf6yielP9YLT9mU92zy3zZtdoUTrw=
 github.com/moby/locker v1.0.1 h1:fOXqR41zeveg4fFODix+1Ch4mj/gT0NE1XJbp/epuBg=
 github.com/moby/locker v1.0.1/go.mod h1:S7SDdo5zpBK84bzzVlKr2V0hz+7x9hWbYC/kq7oQppc=
 github.com/moby/patternmatcher v0.5.0 h1:YCZgJOeULcxLw1Q+sVR636pmS7sPEn1Qo2iAN6M7DBo=
@@ -411,6 +411,7 @@ github.com/moby/spdystream v0.2.0 h1:cjW1zVyyoiM0T7b6UoySUFqzXMoqRckQtXwGPiBhOM8
 github.com/moby/spdystream v0.2.0/go.mod h1:f7i0iNDQJ059oMTcWxx8MA/zKFIuD/lY+0GqbN2Wy8c=
 github.com/moby/sys/mountinfo v0.5.0/go.mod h1:3bMD3Rg+zkqx8MRYPi7Pyb0Ie97QEBmdxbhnCLlSvSU=
 github.com/moby/sys/mountinfo v0.6.2 h1:BzJjoreD5BMFNmD9Rus6gdd1pLuecOFPt8wC+Vygl78=
+github.com/moby/sys/mountinfo v0.6.2/go.mod h1:IJb6JQeOklcdMU9F5xQ8ZALD+CUr5VlGpwtX+VE0rpI=
 github.com/moby/sys/sequential v0.5.0 h1:OPvI35Lzn9K04PBbCLW0g4LcFAJgHsvXsRyewg5lXtc=
 github.com/moby/sys/sequential v0.5.0/go.mod h1:tH2cOOs5V9MlPiXcQzRC+eEyab644PWKGRYaaV5ZZlo=
 github.com/moby/sys/signal v0.7.0 h1:25RW3d5TnQEoKvRbEKUGay6DCQ46IxAVTT9CUMgmsSI=
@@ -546,8 +547,8 @@ github.com/subosito/gotenv v1.4.1 h1:jyEFiXpy21Wm81FBN71l9VoMMV8H8jG+qIK3GCpY6Qs
 github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635/go.mod h1:hkRG7XYTFWNJGYcbNJQlaLq0fg1yr4J4t/NcTQtrfww=
 github.com/theupdateframework/notary v0.6.1 h1:7wshjstgS9x9F5LuB1L5mBI2xNMObWqjz+cjWoom6l0=
 github.com/theupdateframework/notary v0.6.1/go.mod h1:MOfgIfmox8s7/7fduvB2xyPPMJCrjRLRizA8OFwpnKY=
-github.com/tonistiigi/fsutil v0.0.0-20221114235510-0127568185cf h1:2n2v98sRhXEG0Kh7+EvctaNIyOim36Ekp4pGDzbuvO8=
-github.com/tonistiigi/fsutil v0.0.0-20221114235510-0127568185cf/go.mod h1:AvLEd1LEIl64G2Jpgwo7aVV5lGH0ePcKl0ygGIHNYl8=
+github.com/tonistiigi/fsutil v0.0.0-20230105215944-fb433841cbfa h1:XOFp/3aBXlqmOFAg3r6e0qQjPnK5I970LilqX+Is1W8=
+github.com/tonistiigi/fsutil v0.0.0-20230105215944-fb433841cbfa/go.mod h1:AvLEd1LEIl64G2Jpgwo7aVV5lGH0ePcKl0ygGIHNYl8=
 github.com/tonistiigi/units v0.0.0-20180711220420-6950e57a87ea h1:SXhTLE6pb6eld/v/cCndK0AMpt1wiVFb/YYmqB3/QG0=
 github.com/tonistiigi/units v0.0.0-20180711220420-6950e57a87ea/go.mod h1:WPnis/6cRcDZSUvVmezrxJPkiO87ThFYsoUiMwWNDJk=
 github.com/tonistiigi/vt100 v0.0.0-20210615222946-8066bb97264f h1:DLpt6B5oaaS8jyXHa9VA4rrZloBVPVXeCtrOsrFauxc=
@@ -780,6 +781,7 @@ golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20211116061358-0a5406a5449c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220114195835-da31bd327af9/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.3.0 h1:w8ZOecv6NaNa/zC8944JTU3vz4u6Lagfk4RPQxv92NQ=
 golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

hack/release

@@ -2,27 +2,56 @@
 
 set -eu -o pipefail
 
+: "${GITHUB_ACTIONS=}"
+: "${GITHUB_REPOSITORY=}"
+: "${GITHUB_RUN_ID=}"
+
 : "${BUILDX_CMD=docker buildx}"
 : "${DESTDIR=./bin/release}"
 : "${CACHE_FROM=}"
 : "${CACHE_TO=}"
+: "${PLATFORMS=}"
 
 if [ -n "$CACHE_FROM" ]; then
   for cfrom in $CACHE_FROM; do
-    cacheFlags+=(--set "*.cache-from=$cfrom")
+    setFlags+=(--set "*.cache-from=$cfrom")
   done
 fi
 if [ -n "$CACHE_TO" ]; then
   for cto in $CACHE_TO; do
-    cacheFlags+=(--set "*.cache-to=$cto")
+    setFlags+=(--set "*.cache-to=$cto")
   done
 fi
+if [ -n "$PLATFORMS" ]; then
+  setFlags+=(--set "*.platform=$PLATFORMS")
+fi
+if ${BUILDX_CMD} build --help 2>&1 | grep -- '--attest' >/dev/null; then
+  prvattrs="mode=max"
+  if [ "$GITHUB_ACTIONS" = "true" ]; then
+    prvattrs="$prvattrs,builder-id=https://github.com/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID}"
+  fi
+  setFlags+=(--set "*.attest=type=sbom")
+  setFlags+=(--set "*.attest=type=provenance,$prvattrs")
+fi
 
-# release
-(set -x ; ${BUILDX_CMD} bake "${cacheFlags[@]}" --set "*.output=$DESTDIR" release)
+output=$(mktemp -d -t buildx-output.XXXXXXXXXX)
 
-# wrap binaries
-mv -f ./${DESTDIR}/**/* ./${DESTDIR}/
-find ./${DESTDIR} -type d -empty -delete
+(
+  set -x
+  ${BUILDX_CMD} bake "${setFlags[@]}" --set "*.args.BUILDKIT_MULTI_PLATFORM=true" --set "*.output=$output" release
+)
 
-source ./hack/hash-files
+for pdir in "${output}"/*/; do
+  (
+    cd "$pdir"
+    binname=$(find . -name 'buildx-*')
+    filename=$(basename "${binname%.exe}")
+    mv "provenance.json" "${filename}.provenance.json"
+    mv "sbom-binaries.spdx.json" "${filename}.sbom.json"
+    find . -name 'sbom*.json' -exec rm {} \;
+  )
+done
+
+mkdir -p "$DESTDIR"
+mv "$output"/**/* "$DESTDIR/"
+rm -rf "$output"

hack/test-driver

@@ -131,6 +131,14 @@ buildxCmd build ${buildPlatformFlag} \
   "${context}"
 cat "${context}/metadata-build.json"
 
+# load to docker store
+if [ "$DRIVER" != "docker" ]; then
+  buildxCmd build \
+    --output="type=docker,name=buildx-test-load" \
+    --builder="${builderName}" \
+    "${context}"
+fi
+
 # create bake def
 cat > "${bakedef}" <<EOL
 group "default" {

util/buildflags/attests.go

@@ -29,6 +29,9 @@ func ParseAttests(in []string) (map[string]*string, error) {
 		}
 
 		k := "attest:" + attestType
+		if _, ok := out[k]; ok {
+			return nil, errors.Errorf("duplicate attestation field %s", attestType)
+		}
 		if enabled {
 			out[k] = &in
 		} else {

util/gitutil/gitpath_unix.go

@@ -0,0 +1,42 @@
+//go:build !windows
+// +build !windows
+
+package gitutil
+
+import (
+	"os"
+	"os/exec"
+	"path/filepath"
+
+	"github.com/moby/sys/mountinfo"
+)
+
+func gitPath(wd string) (string, error) {
+	// On WSL2 we need to check if the current working directory is mounted on
+	// a Windows drive and if so, we need to use the Windows git executable.
+	if os.Getenv("WSL_DISTRO_NAME") != "" && wd != "" {
+		// ensure any symlinks are resolved
+		wdPath, err := filepath.EvalSymlinks(wd)
+		if err != nil {
+			return "", err
+		}
+		mi, err := mountinfo.GetMounts(mountinfo.ParentsFilter(wdPath))
+		if err != nil {
+			return "", err
+		}
+		// find the longest mount point
+		var idx, maxlen int
+		for i := range mi {
+			if len(mi[i].Mountpoint) > maxlen {
+				maxlen = len(mi[i].Mountpoint)
+				idx = i
+			}
+		}
+		if mi[idx].FSType == "9p" {
+			if p, err := exec.LookPath("git.exe"); err == nil {
+				return p, nil
+			}
+		}
+	}
+	return exec.LookPath("git")
+}

util/gitutil/gitpath_windows.go

@@ -0,0 +1,9 @@
+package gitutil
+
+import (
+	"os/exec"
+)
+
+func gitPath(wd string) (string, error) {
+	return exec.LookPath("git.exe")
+}

util/gitutil/gitutil.go

@@ -11,8 +11,9 @@ import (
 
 // Git represents an active git object
 type Git struct {
-	ctx context.Context
-	wd  string
+	ctx     context.Context
+	wd      string
+	gitpath string
 }
 
 // Option provides a variadic option for configuring the git client.
@@ -33,14 +34,22 @@ func WithWorkingDir(wd string) Option {
 }
 
 // New initializes a new git client
-func New(opts ...Option) *Git {
+func New(opts ...Option) (*Git, error) {
+	var err error
 	c := &Git{
 		ctx: context.Background(),
 	}
+
 	for _, opt := range opts {
 		opt(c)
 	}
-	return c
+
+	c.gitpath, err = gitPath(c.wd)
+	if err != nil {
+		return nil, errors.New("git not found in PATH")
+	}
+
+	return c, nil
 }
 
 func (c *Git) IsInsideWorkTree() bool {
@@ -58,7 +67,15 @@ func (c *Git) RootDir() (string, error) {
 }
 
 func (c *Git) RemoteURL() (string, error) {
-	return c.clean(c.run("ls-remote", "--get-url"))
+	// Try to get the remote URL from the origin remote first
+	if ru, err := c.clean(c.run("remote", "get-url", "origin")); err == nil && ru != "" {
+		return ru, nil
+	}
+	// If that fails, try to get the remote URL from the upstream remote
+	if ru, err := c.clean(c.run("remote", "get-url", "upstream")); err == nil && ru != "" {
+		return ru, nil
+	}
+	return "", errors.New("no remote URL found for either origin or upstream")
 }
 
 func (c *Git) FullCommit() (string, error) {
@@ -89,16 +106,12 @@ func (c *Git) Tag() (string, error) {
 }
 
 func (c *Git) run(args ...string) (string, error) {
-	if _, err := exec.LookPath("git"); err != nil {
-		return "", errors.New("git not present in PATH")
-	}
-
 	var extraArgs = []string{
 		"-c", "log.showSignature=false",
 	}
 
 	args = append(extraArgs, args...)
-	cmd := exec.Command("git", args...)
+	cmd := exec.CommandContext(c.ctx, c.gitpath, args...)
 	if c.wd != "" {
 		cmd.Dir = c.wd
 	}

util/gitutil/gitutil_test.go

@@ -7,7 +7,9 @@ import (
 )
 
 func TestGit(t *testing.T) {
-	c := New()
+	c, err := New()
+	require.NoError(t, err)
+
 	out, err := c.run("status")
 	require.NoError(t, err)
 	require.NotEmpty(t, out)
@@ -20,10 +22,12 @@ func TestGit(t *testing.T) {
 
 func TestGitFullCommit(t *testing.T) {
 	Mktmp(t)
-	GitInit(t)
-	GitCommit(t, "bar")
+	c, err := New()
+	require.NoError(t, err)
+
+	GitInit(c, t)
+	GitCommit(c, t, "bar")
 
-	c := New()
 	out, err := c.FullCommit()
 	require.NoError(t, err)
 	require.Equal(t, 40, len(out))
@@ -31,10 +35,12 @@ func TestGitFullCommit(t *testing.T) {
 
 func TestGitShortCommit(t *testing.T) {
 	Mktmp(t)
-	GitInit(t)
-	GitCommit(t, "bar")
+	c, err := New()
+	require.NoError(t, err)
+
+	GitInit(c, t)
+	GitCommit(c, t, "bar")
 
-	c := New()
 	out, err := c.ShortCommit()
 	require.NoError(t, err)
 	require.Equal(t, 7, len(out))
@@ -42,13 +48,15 @@ func TestGitShortCommit(t *testing.T) {
 
 func TestGitTagsPointsAt(t *testing.T) {
 	Mktmp(t)
-	GitInit(t)
-	GitCommit(t, "bar")
-	GitTag(t, "v0.8.0")
-	GitCommit(t, "foo")
-	GitTag(t, "v0.9.0")
+	c, err := New()
+	require.NoError(t, err)
+
+	GitInit(c, t)
+	GitCommit(c, t, "bar")
+	GitTag(c, t, "v0.8.0")
+	GitCommit(c, t, "foo")
+	GitTag(c, t, "v0.9.0")
 
-	c := New()
 	out, err := c.clean(c.run("tag", "--points-at", "HEAD", "--sort", "-version:creatordate"))
 	require.NoError(t, err)
 	require.Equal(t, "v0.9.0", out)
@@ -56,14 +64,102 @@ func TestGitTagsPointsAt(t *testing.T) {
 
 func TestGitDescribeTags(t *testing.T) {
 	Mktmp(t)
-	GitInit(t)
-	GitCommit(t, "bar")
-	GitTag(t, "v0.8.0")
-	GitCommit(t, "foo")
-	GitTag(t, "v0.9.0")
+	c, err := New()
+	require.NoError(t, err)
+
+	GitInit(c, t)
+	GitCommit(c, t, "bar")
+	GitTag(c, t, "v0.8.0")
+	GitCommit(c, t, "foo")
+	GitTag(c, t, "v0.9.0")
 
-	c := New()
 	out, err := c.clean(c.run("describe", "--tags", "--abbrev=0"))
 	require.NoError(t, err)
 	require.Equal(t, "v0.9.0", out)
 }
+
+func TestGitRemoteURL(t *testing.T) {
+	type remote struct {
+		name string
+		url  string
+	}
+
+	cases := []struct {
+		name     string
+		remotes  []remote
+		expected string
+		fail     bool
+	}{
+		{
+			name:    "no remotes",
+			remotes: []remote{},
+			fail:    true,
+		},
+		{
+			name: "origin",
+			remotes: []remote{
+				{
+					name: "origin",
+					url:  "git@github.com:crazy-max/buildx.git",
+				},
+			},
+			expected: "git@github.com:crazy-max/buildx.git",
+		},
+		{
+			name: "upstream",
+			remotes: []remote{
+				{
+					name: "upstream",
+					url:  "git@github.com:docker/buildx.git",
+				},
+			},
+			expected: "git@github.com:docker/buildx.git",
+		},
+		{
+			name: "origin and upstream",
+			remotes: []remote{
+				{
+					name: "upstream",
+					url:  "git@github.com:docker/buildx.git",
+				},
+				{
+					name: "origin",
+					url:  "git@github.com:crazy-max/buildx.git",
+				},
+			},
+			expected: "git@github.com:crazy-max/buildx.git",
+		},
+		{
+			name: "not found",
+			remotes: []remote{
+				{
+					name: "foo",
+					url:  "git@github.com:docker/buildx.git",
+				},
+			},
+			fail: true,
+		},
+	}
+	for _, tt := range cases {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			Mktmp(t)
+			c, err := New()
+			require.NoError(t, err)
+
+			GitInit(c, t)
+			GitCommit(c, t, "initial commit")
+			for _, r := range tt.remotes {
+				GitSetRemote(c, t, r.name, r.url)
+			}
+
+			ru, err := c.RemoteURL()
+			if tt.fail {
+				require.Error(t, err)
+				return
+			}
+			require.NoError(t, err)
+			require.Equal(t, tt.expected, ru)
+		})
+	}
+}

util/gitutil/testutil.go

@@ -7,46 +7,46 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func GitInit(tb testing.TB) {
+func GitInit(c *Git, tb testing.TB) {
 	tb.Helper()
-	out, err := fakeGit("init")
+	out, err := fakeGit(c, "init")
 	require.NoError(tb, err)
 	require.Contains(tb, out, "Initialized empty Git repository")
 	require.NoError(tb, err)
-	GitCheckoutBranch(tb, "main")
-	_, _ = fakeGit("branch", "-D", "master")
+	GitCheckoutBranch(c, tb, "main")
+	_, _ = fakeGit(c, "branch", "-D", "master")
 }
 
-func GitCommit(tb testing.TB, msg string) {
+func GitCommit(c *Git, tb testing.TB, msg string) {
 	tb.Helper()
-	out, err := fakeGit("commit", "--allow-empty", "-m", msg)
+	out, err := fakeGit(c, "commit", "--allow-empty", "-m", msg)
 	require.NoError(tb, err)
 	require.Contains(tb, out, "main", msg)
 }
 
-func GitTag(tb testing.TB, tag string) {
+func GitTag(c *Git, tb testing.TB, tag string) {
 	tb.Helper()
-	out, err := fakeGit("tag", tag)
+	out, err := fakeGit(c, "tag", tag)
 	require.NoError(tb, err)
 	require.Empty(tb, out)
 }
 
-func GitCheckoutBranch(tb testing.TB, name string) {
+func GitCheckoutBranch(c *Git, tb testing.TB, name string) {
 	tb.Helper()
-	out, err := fakeGit("checkout", "-b", name)
+	out, err := fakeGit(c, "checkout", "-b", name)
 	require.NoError(tb, err)
 	require.Empty(tb, out)
 }
 
-func GitAdd(tb testing.TB, file string) {
+func GitAdd(c *Git, tb testing.TB, file string) {
 	tb.Helper()
-	_, err := fakeGit("add", file)
+	_, err := fakeGit(c, "add", file)
 	require.NoError(tb, err)
 }
 
-func GitSetRemote(tb testing.TB, url string) {
+func GitSetRemote(c *Git, tb testing.TB, name string, url string) {
 	tb.Helper()
-	_, err := fakeGit("remote", "add", "origin", url)
+	_, err := fakeGit(c, "remote", "add", name, url)
 	require.NoError(tb, err)
 }
 
@@ -62,7 +62,7 @@ func Mktmp(tb testing.TB) string {
 	return folder
 }
 
-func fakeGit(args ...string) (string, error) {
+func fakeGit(c *Git, args ...string) (string, error) {
 	allArgs := []string{
 		"-c", "user.name=buildx",
 		"-c", "user.email=buildx@docker.com",
@@ -71,6 +71,5 @@ func fakeGit(args ...string) (string, error) {
 		"-c", "log.showSignature=false",
 	}
 	allArgs = append(allArgs, args...)
-	c := New()
 	return c.clean(c.run(allArgs...))
 }

util/imagetools/create.go

@@ -11,6 +11,7 @@ import (
 	"github.com/containerd/containerd/errdefs"
 	"github.com/containerd/containerd/images"
 	"github.com/containerd/containerd/platforms"
+	"github.com/containerd/containerd/remotes"
 	"github.com/docker/distribution/reference"
 	"github.com/moby/buildkit/util/contentutil"
 	"github.com/opencontainers/go-digest"
@@ -151,8 +152,9 @@ func (r *Resolver) Combine(ctx context.Context, srcs []*Source) ([]byte, ocispec
 }
 
 func (r *Resolver) Push(ctx context.Context, ref reference.Named, desc ocispec.Descriptor, dt []byte) error {
-	ref = reference.TagNameOnly(ref)
+	ctx = remotes.WithMediaTypeKeyPrefix(ctx, "application/vnd.in-toto+json", "intoto")
 
+	ref = reference.TagNameOnly(ref)
 	p, err := r.resolver().Pusher(ctx, ref.String())
 	if err != nil {
 		return err
@@ -173,6 +175,8 @@ func (r *Resolver) Push(ctx context.Context, ref reference.Named, desc ocispec.D
 }
 
 func (r *Resolver) Copy(ctx context.Context, src *Source, dest reference.Named) error {
+	ctx = remotes.WithMediaTypeKeyPrefix(ctx, "application/vnd.in-toto+json", "intoto")
+
 	dest = reference.TagNameOnly(dest)
 	p, err := r.resolver().Pusher(ctx, dest.String())
 	if err != nil {

util/imagetools/loader.go

@@ -0,0 +1,406 @@
+package imagetools
+
+// TODO: replace with go-imageinspect library when public
+
+import (
+	"context"
+	"encoding/json"
+	"sort"
+	"strings"
+	"sync"
+
+	"github.com/containerd/containerd/content"
+	"github.com/containerd/containerd/images"
+	"github.com/containerd/containerd/platforms"
+	"github.com/containerd/containerd/remotes"
+	"github.com/docker/distribution/reference"
+	"github.com/moby/buildkit/util/contentutil"
+	"github.com/opencontainers/go-digest"
+	ocispec "github.com/opencontainers/image-spec/specs-go/v1"
+	"github.com/pkg/errors"
+	"golang.org/x/sync/errgroup"
+)
+
+const (
+	annotationReference = "vnd.docker.reference.digest"
+)
+
+type contentCache interface {
+	content.Provider
+	content.Ingester
+}
+
+type loader struct {
+	resolver remotes.Resolver
+	cache    contentCache
+}
+
+type manifest struct {
+	desc     ocispec.Descriptor
+	manifest ocispec.Manifest
+}
+
+type index struct {
+	desc  ocispec.Descriptor
+	index ocispec.Index
+}
+
+type asset struct {
+	config     *ocispec.Image
+	sbom       *sbomStub
+	provenance *provenanceStub
+
+	deferredSbom       func() (*sbomStub, error)
+	deferredProvenance func() (*provenanceStub, error)
+}
+
+type result struct {
+	mu        sync.Mutex
+	indexes   map[digest.Digest]index
+	manifests map[digest.Digest]manifest
+	images    map[string]digest.Digest
+	refs      map[digest.Digest][]digest.Digest
+
+	platforms []string
+	assets    map[string]asset
+}
+
+func newLoader(resolver remotes.Resolver) *loader {
+	return &loader{
+		resolver: resolver,
+		cache:    contentutil.NewBuffer(),
+	}
+}
+
+func (l *loader) Load(ctx context.Context, ref string) (*result, error) {
+	named, err := parseRef(ref)
+	if err != nil {
+		return nil, err
+	}
+
+	_, desc, err := l.resolver.Resolve(ctx, named.String())
+	if err != nil {
+		return nil, err
+	}
+
+	canonical, err := reference.WithDigest(named, desc.Digest)
+	if err != nil {
+		return nil, err
+	}
+
+	fetcher, err := l.resolver.Fetcher(ctx, canonical.String())
+	if err != nil {
+		return nil, err
+	}
+
+	r := &result{
+		indexes:   make(map[digest.Digest]index),
+		manifests: make(map[digest.Digest]manifest),
+		images:    make(map[string]digest.Digest),
+		refs:      make(map[digest.Digest][]digest.Digest),
+		assets:    make(map[string]asset),
+	}
+
+	if err := l.fetch(ctx, fetcher, desc, r); err != nil {
+		return nil, err
+	}
+
+	for platform, dgst := range r.images {
+		r.platforms = append(r.platforms, platform)
+
+		mfst, ok := r.manifests[dgst]
+		if !ok {
+			return nil, errors.Errorf("image %s not found", platform)
+		}
+
+		var a asset
+		annotations := make(map[string]string, len(mfst.manifest.Annotations)+len(mfst.desc.Annotations))
+		for k, v := range mfst.desc.Annotations {
+			annotations[k] = v
+		}
+		for k, v := range mfst.manifest.Annotations {
+			annotations[k] = v
+		}
+
+		if err := l.scanConfig(ctx, fetcher, mfst.manifest.Config, &a); err != nil {
+			return nil, err
+		}
+
+		refs, ok := r.refs[dgst]
+		if ok {
+			if err := l.scanSBOM(ctx, fetcher, r, refs, &a); err != nil {
+				return nil, err
+			}
+		}
+
+		if err := l.scanProvenance(ctx, fetcher, r, refs, &a); err != nil {
+			return nil, err
+		}
+
+		r.assets[platform] = a
+	}
+
+	sort.Strings(r.platforms)
+	return r, nil
+}
+
+func (l *loader) fetch(ctx context.Context, fetcher remotes.Fetcher, desc ocispec.Descriptor, r *result) error {
+	_, err := remotes.FetchHandler(l.cache, fetcher)(ctx, desc)
+	if err != nil {
+		return err
+	}
+
+	switch desc.MediaType {
+	case images.MediaTypeDockerSchema2Manifest, ocispec.MediaTypeImageManifest:
+		var mfst ocispec.Manifest
+		dt, err := content.ReadBlob(ctx, l.cache, desc)
+		if err != nil {
+			return err
+		}
+		if err := json.Unmarshal(dt, &mfst); err != nil {
+			return err
+		}
+		r.mu.Lock()
+		r.manifests[desc.Digest] = manifest{
+			desc:     desc,
+			manifest: mfst,
+		}
+		r.mu.Unlock()
+
+		ref, ok := desc.Annotations[annotationReference]
+		if ok {
+			refdgst, err := digest.Parse(ref)
+			if err != nil {
+				return err
+			}
+			r.mu.Lock()
+			r.refs[refdgst] = append(r.refs[refdgst], desc.Digest)
+			r.mu.Unlock()
+		} else {
+			p := desc.Platform
+			if p == nil {
+				p, err = l.readPlatformFromConfig(ctx, fetcher, mfst.Config)
+				if err != nil {
+					return err
+				}
+			}
+			r.mu.Lock()
+			r.images[platforms.Format(platforms.Normalize(*p))] = desc.Digest
+			r.mu.Unlock()
+		}
+	case images.MediaTypeDockerSchema2ManifestList, ocispec.MediaTypeImageIndex:
+		var idx ocispec.Index
+		dt, err := content.ReadBlob(ctx, l.cache, desc)
+		if err != nil {
+			return err
+		}
+
+		if err := json.Unmarshal(dt, &idx); err != nil {
+			return err
+		}
+
+		r.mu.Lock()
+		r.indexes[desc.Digest] = index{
+			desc:  desc,
+			index: idx,
+		}
+		r.mu.Unlock()
+
+		eg, ctx := errgroup.WithContext(ctx)
+		for _, d := range idx.Manifests {
+			d := d
+			eg.Go(func() error {
+				return l.fetch(ctx, fetcher, d, r)
+			})
+		}
+
+		if err := eg.Wait(); err != nil {
+			return err
+		}
+	default:
+	}
+	return nil
+}
+
+func (l *loader) readPlatformFromConfig(ctx context.Context, fetcher remotes.Fetcher, desc ocispec.Descriptor) (*ocispec.Platform, error) {
+	_, err := remotes.FetchHandler(l.cache, fetcher)(ctx, desc)
+	if err != nil {
+		return nil, err
+	}
+
+	dt, err := content.ReadBlob(ctx, l.cache, desc)
+	if err != nil {
+		return nil, err
+	}
+
+	var config ocispec.Image
+	if err := json.Unmarshal(dt, &config); err != nil {
+		return nil, err
+	}
+
+	return &ocispec.Platform{
+		OS:           config.OS,
+		Architecture: config.Architecture,
+		Variant:      config.Variant,
+	}, nil
+}
+
+func (l *loader) scanConfig(ctx context.Context, fetcher remotes.Fetcher, desc ocispec.Descriptor, as *asset) error {
+	_, err := remotes.FetchHandler(l.cache, fetcher)(ctx, desc)
+	if err != nil {
+		return err
+	}
+	dt, err := content.ReadBlob(ctx, l.cache, desc)
+	if err != nil {
+		return err
+	}
+	return json.Unmarshal(dt, &as.config)
+}
+
+type sbomStub struct {
+	SPDX            interface{}   `json:",omitempty"`
+	AdditionalSPDXs []interface{} `json:",omitempty"`
+}
+
+func (l *loader) scanSBOM(ctx context.Context, fetcher remotes.Fetcher, r *result, refs []digest.Digest, as *asset) error {
+	ctx = remotes.WithMediaTypeKeyPrefix(ctx, "application/vnd.in-toto+json", "intoto")
+	as.deferredSbom = func() (*sbomStub, error) {
+		var sbom *sbomStub
+		for _, dgst := range refs {
+			mfst, ok := r.manifests[dgst]
+			if !ok {
+				return nil, errors.Errorf("referenced image %s not found", dgst)
+			}
+			for _, layer := range mfst.manifest.Layers {
+				if layer.MediaType == "application/vnd.in-toto+json" && layer.Annotations["in-toto.io/predicate-type"] == "https://spdx.dev/Document" {
+					_, err := remotes.FetchHandler(l.cache, fetcher)(ctx, layer)
+					if err != nil {
+						return nil, err
+					}
+					dt, err := content.ReadBlob(ctx, l.cache, layer)
+					if err != nil {
+						return nil, err
+					}
+					var spdx struct {
+						Predicate interface{} `json:"predicate"`
+					}
+					if err := json.Unmarshal(dt, &spdx); err != nil {
+						return nil, err
+					}
+
+					if sbom == nil {
+						sbom = &sbomStub{}
+						sbom.SPDX = spdx.Predicate
+					} else {
+						sbom.AdditionalSPDXs = append(sbom.AdditionalSPDXs, spdx.Predicate)
+					}
+				}
+			}
+		}
+		return sbom, nil
+	}
+	return nil
+}
+
+type provenanceStub struct {
+	SLSA interface{} `json:",omitempty"`
+}
+
+func (l *loader) scanProvenance(ctx context.Context, fetcher remotes.Fetcher, r *result, refs []digest.Digest, as *asset) error {
+	ctx = remotes.WithMediaTypeKeyPrefix(ctx, "application/vnd.in-toto+json", "intoto")
+	as.deferredProvenance = func() (*provenanceStub, error) {
+		var provenance *provenanceStub
+		for _, dgst := range refs {
+			mfst, ok := r.manifests[dgst]
+			if !ok {
+				return nil, errors.Errorf("referenced image %s not found", dgst)
+			}
+			for _, layer := range mfst.manifest.Layers {
+				if layer.MediaType == "application/vnd.in-toto+json" && strings.HasPrefix(layer.Annotations["in-toto.io/predicate-type"], "https://slsa.dev/provenance/") {
+					_, err := remotes.FetchHandler(l.cache, fetcher)(ctx, layer)
+					if err != nil {
+						return nil, err
+					}
+					dt, err := content.ReadBlob(ctx, l.cache, layer)
+					if err != nil {
+						return nil, err
+					}
+					var slsa struct {
+						Predicate interface{} `json:"predicate"`
+					}
+					if err := json.Unmarshal(dt, &slsa); err != nil {
+						return nil, err
+					}
+					provenance = &provenanceStub{
+						SLSA: slsa.Predicate,
+					}
+					break
+				}
+			}
+		}
+		return provenance, nil
+	}
+	return nil
+}
+
+func (r *result) Configs() map[string]*ocispec.Image {
+	if len(r.assets) == 0 {
+		return nil
+	}
+	res := make(map[string]*ocispec.Image)
+	for p, a := range r.assets {
+		if a.config == nil {
+			continue
+		}
+		res[p] = a.config
+	}
+	return res
+}
+
+func (r *result) Provenance() (map[string]provenanceStub, error) {
+	if len(r.assets) == 0 {
+		return nil, nil
+	}
+	res := make(map[string]provenanceStub)
+	for p, a := range r.assets {
+		if a.deferredProvenance == nil {
+			continue
+		}
+		if a.provenance == nil {
+			provenance, err := a.deferredProvenance()
+			if err != nil {
+				return nil, err
+			}
+			if provenance == nil {
+				continue
+			}
+			a.provenance = provenance
+		}
+		res[p] = *a.provenance
+	}
+	return res, nil
+}
+
+func (r *result) SBOM() (map[string]sbomStub, error) {
+	if len(r.assets) == 0 {
+		return nil, nil
+	}
+	res := make(map[string]sbomStub)
+	for p, a := range r.assets {
+		if a.deferredSbom == nil {
+			continue
+		}
+		if a.sbom == nil {
+			sbom, err := a.deferredSbom()
+			if err != nil {
+				return nil, err
+			}
+			if sbom == nil {
+				continue
+			}
+			a.sbom = sbom
+		}
+		res[p] = *a.sbom
+	}
+	return res, nil
+}

util/imagetools/printers.go

@@ -6,20 +6,15 @@ import (
 	"fmt"
 	"io"
 	"os"
-	"sort"
 	"strings"
-	"sync"
 	"text/tabwriter"
 	"text/template"
 
 	"github.com/containerd/containerd/images"
 	"github.com/containerd/containerd/platforms"
 	"github.com/docker/distribution/reference"
-	binfotypes "github.com/moby/buildkit/util/buildinfo/types"
-	"github.com/moby/buildkit/util/imageutil"
 	"github.com/opencontainers/go-digest"
 	ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
-	"golang.org/x/sync/errgroup"
 )
 
 const defaultPfx = "  "
@@ -31,11 +26,10 @@ type Printer struct {
 	name   string
 	format string
 
-	raw       []byte
-	ref       reference.Named
-	manifest  ocispecs.Descriptor
-	index     ocispecs.Index
-	platforms []ocispecs.Platform
+	raw      []byte
+	ref      reference.Named
+	manifest ocispecs.Descriptor
+	index    ocispecs.Index
 }
 
 func NewPrinter(ctx context.Context, opt Opt, name string, format string) (*Printer, error) {
@@ -46,38 +40,25 @@ func NewPrinter(ctx context.Context, opt Opt, name string, format string) (*Prin
 		return nil, err
 	}
 
-	dt, manifest, err := resolver.Get(ctx, name)
+	dt, mfst, err := resolver.Get(ctx, ref.String())
 	if err != nil {
 		return nil, err
 	}
 
-	var index ocispecs.Index
-	if err = json.Unmarshal(dt, &index); err != nil {
+	var idx ocispecs.Index
+	if err = json.Unmarshal(dt, &idx); err != nil {
 		return nil, err
 	}
 
-	var pforms []ocispecs.Platform
-	switch manifest.MediaType {
-	case images.MediaTypeDockerSchema2ManifestList, ocispecs.MediaTypeImageIndex:
-		for _, m := range index.Manifests {
-			if m.Platform != nil {
-				pforms = append(pforms, *m.Platform)
-			}
-		}
-	default:
-		pforms = append(pforms, platforms.DefaultSpec())
-	}
-
 	return &Printer{
-		ctx:       ctx,
-		resolver:  resolver,
-		name:      name,
-		format:    format,
-		raw:       dt,
-		ref:       ref,
-		manifest:  manifest,
-		index:     index,
-		platforms: pforms,
+		ctx:      ctx,
+		resolver: resolver,
+		name:     name,
+		format:   format,
+		raw:      dt,
+		ref:      ref,
+		manifest: mfst,
+		index:    idx,
 	}, nil
 }
 
@@ -102,6 +83,11 @@ func (p *Printer) Print(raw bool, out io.Writer) error {
 		return nil
 	}
 
+	res, err := newLoader(p.resolver.resolver()).Load(p.ctx, p.name)
+	if err != nil {
+		return err
+	}
+
 	tpl, err := template.New("").Funcs(template.FuncMap{
 		"json": func(v interface{}) string {
 			b, _ := json.MarshalIndent(v, "", "  ")
@@ -112,46 +98,15 @@ func (p *Printer) Print(raw bool, out io.Writer) error {
 		return err
 	}
 
-	imageconfigs := make(map[string]*ocispecs.Image)
-	imageconfigsMutex := sync.Mutex{}
-	buildinfos := make(map[string]*binfotypes.BuildInfo)
-	buildinfosMutex := sync.Mutex{}
-
-	eg, _ := errgroup.WithContext(p.ctx)
-	for _, platform := range p.platforms {
-		func(platform ocispecs.Platform) {
-			eg.Go(func() error {
-				img, dtic, err := p.getImageConfig(&platform)
-				if err != nil {
-					return err
-				} else if img != nil {
-					imageconfigsMutex.Lock()
-					imageconfigs[platforms.Format(platform)] = img
-					imageconfigsMutex.Unlock()
-				}
-				if bi, err := imageutil.BuildInfo(dtic); err != nil {
-					return err
-				} else if bi != nil {
-					buildinfosMutex.Lock()
-					buildinfos[platforms.Format(platform)] = bi
-					buildinfosMutex.Unlock()
-				}
-				return nil
-			})
-		}(platform)
-	}
-	if err := eg.Wait(); err != nil {
-		return err
-	}
-
+	imageconfigs := res.Configs()
 	format := tpl.Root.String()
 
-	var manifest interface{}
+	var mfst interface{}
 	switch p.manifest.MediaType {
 	case images.MediaTypeDockerSchema2Manifest, ocispecs.MediaTypeImageManifest:
-		manifest = p.manifest
+		mfst = p.manifest
 	case images.MediaTypeDockerSchema2ManifestList, ocispecs.MediaTypeImageIndex:
-		manifest = struct {
+		mfst = struct {
 			SchemaVersion int                   `json:"schemaVersion"`
 			MediaType     string                `json:"mediaType,omitempty"`
 			Digest        digest.Digest         `json:"digest"`
@@ -170,10 +125,11 @@ func (p *Printer) Print(raw bool, out io.Writer) error {
 
 	switch {
 	// TODO: print formatted config
-	case strings.HasPrefix(format, "{{.Manifest"), strings.HasPrefix(format, "{{.BuildInfo"):
+	case strings.HasPrefix(format, "{{.Manifest"):
 		w := tabwriter.NewWriter(out, 0, 0, 1, ' ', 0)
 		_, _ = fmt.Fprintf(w, "Name:\t%s\n", p.ref.String())
-		if strings.HasPrefix(format, "{{.Manifest") {
+		switch {
+		case strings.HasPrefix(format, "{{.Manifest"):
 			_, _ = fmt.Fprintf(w, "MediaType:\t%s\n", p.manifest.MediaType)
 			_, _ = fmt.Fprintf(w, "Digest:\t%s\n", p.manifest.Digest)
 			_ = w.Flush()
@@ -181,42 +137,25 @@ func (p *Printer) Print(raw bool, out io.Writer) error {
 			case images.MediaTypeDockerSchema2ManifestList, ocispecs.MediaTypeImageIndex:
 				_ = p.printManifestList(out)
 			}
-		} else if strings.HasPrefix(format, "{{.BuildInfo") {
-			_ = w.Flush()
-			_ = p.printBuildInfos(buildinfos, out)
 		}
 	default:
-		if len(p.platforms) > 1 {
-			return tpl.Execute(out, struct {
-				Name      string                           `json:"name,omitempty"`
-				Manifest  interface{}                      `json:"manifest,omitempty"`
-				Image     map[string]*ocispecs.Image       `json:"image,omitempty"`
-				BuildInfo map[string]*binfotypes.BuildInfo `json:"buildinfo,omitempty"`
-			}{
-				Name:      p.name,
-				Manifest:  manifest,
-				Image:     imageconfigs,
-				BuildInfo: buildinfos,
+		if len(res.platforms) > 1 {
+			return tpl.Execute(out, tplInputs{
+				Name:     p.name,
+				Manifest: mfst,
+				Image:    imageconfigs,
+				result:   res,
 			})
 		}
 		var ic *ocispecs.Image
 		for _, v := range imageconfigs {
 			ic = v
 		}
-		var bi *binfotypes.BuildInfo
-		for _, v := range buildinfos {
-			bi = v
-		}
-		return tpl.Execute(out, struct {
-			Name      string                `json:"name,omitempty"`
-			Manifest  interface{}           `json:"manifest,omitempty"`
-			Image     *ocispecs.Image       `json:"image,omitempty"`
-			BuildInfo *binfotypes.BuildInfo `json:"buildinfo,omitempty"`
-		}{
-			Name:      p.name,
-			Manifest:  manifest,
-			Image:     ic,
-			BuildInfo: bi,
+		return tpl.Execute(out, tplInput{
+			Name:     p.name,
+			Manifest: mfst,
+			Image:    ic,
+			result:   res,
 		})
 	}
 
@@ -252,6 +191,7 @@ func (p *Printer) printManifestList(out io.Writer) error {
 				_, _ = fmt.Fprintf(w, "%sURLs:\t%s\n", defaultPfx, strings.Join(m.URLs, ", "))
 			}
 			if len(m.Annotations) > 0 {
+				_, _ = fmt.Fprintf(w, "%sAnnotations:\t\n", defaultPfx)
 				_ = w.Flush()
 				w2 := tabwriter.NewWriter(os.Stdout, 0, 0, 1, ' ', 0)
 				for k, v := range m.Annotations {
@@ -264,82 +204,48 @@ func (p *Printer) printManifestList(out io.Writer) error {
 	return w.Flush()
 }
 
-func (p *Printer) printBuildInfos(bis map[string]*binfotypes.BuildInfo, out io.Writer) error {
-	if len(bis) == 0 {
-		return nil
-	} else if len(bis) == 1 {
-		for _, bi := range bis {
-			return p.printBuildInfo(bi, "", out)
-		}
-	}
-	var pkeys []string
-	for _, pform := range p.platforms {
-		pkeys = append(pkeys, platforms.Format(pform))
-	}
-	sort.Strings(pkeys)
-	for _, platform := range pkeys {
-		bi := bis[platform]
-		w := tabwriter.NewWriter(out, 0, 0, 1, ' ', 0)
-		_, _ = fmt.Fprintf(w, "\t\nPlatform:\t%s\t\n", platform)
-		_ = w.Flush()
-		if err := p.printBuildInfo(bi, "", out); err != nil {
-			return err
-		}
-	}
-	return nil
+type tplInput struct {
+	Name     string          `json:"name,omitempty"`
+	Manifest interface{}     `json:"manifest,omitempty"`
+	Image    *ocispecs.Image `json:"image,omitempty"`
+
+	result *result
 }
 
-func (p *Printer) printBuildInfo(bi *binfotypes.BuildInfo, pfx string, out io.Writer) error {
-	w := tabwriter.NewWriter(out, 0, 0, 1, ' ', 0)
-	_, _ = fmt.Fprintf(w, "%sFrontend:\t%s\n", pfx, bi.Frontend)
-
-	if len(bi.Attrs) > 0 {
-		_, _ = fmt.Fprintf(w, "%sAttrs:\t\n", pfx)
-		_ = w.Flush()
-		for k, v := range bi.Attrs {
-			_, _ = fmt.Fprintf(w, "%s%s:\t%s\n", pfx+defaultPfx, k, *v)
-		}
-	}
-
-	if len(bi.Sources) > 0 {
-		_, _ = fmt.Fprintf(w, "%sSources:\t\n", pfx)
-		_ = w.Flush()
-		for i, v := range bi.Sources {
-			if i != 0 {
-				_, _ = fmt.Fprintf(w, "\t\n")
-			}
-			_, _ = fmt.Fprintf(w, "%sType:\t%s\n", pfx+defaultPfx, v.Type)
-			_, _ = fmt.Fprintf(w, "%sRef:\t%s\n", pfx+defaultPfx, v.Ref)
-			_, _ = fmt.Fprintf(w, "%sPin:\t%s\n", pfx+defaultPfx, v.Pin)
-		}
-	}
-
-	if len(bi.Deps) > 0 {
-		_, _ = fmt.Fprintf(w, "%sDeps:\t\n", pfx)
-		_ = w.Flush()
-		firstPass := true
-		for k, v := range bi.Deps {
-			if !firstPass {
-				_, _ = fmt.Fprintf(w, "\t\n")
-			}
-			_, _ = fmt.Fprintf(w, "%sName:\t%s\n", pfx+defaultPfx, k)
-			_ = w.Flush()
-			_ = p.printBuildInfo(&v, pfx+defaultPfx, out)
-			firstPass = false
-		}
-	}
-
-	return w.Flush()
-}
-
-func (p *Printer) getImageConfig(platform *ocispecs.Platform) (*ocispecs.Image, []byte, error) {
-	_, dtic, err := p.resolver.ImageConfig(p.ctx, p.name, platform)
+func (inp tplInput) SBOM() (sbomStub, error) {
+	sbom, err := inp.result.SBOM()
 	if err != nil {
-		return nil, nil, err
+		return sbomStub{}, nil
 	}
-	var img *ocispecs.Image
-	if err = json.Unmarshal(dtic, &img); err != nil {
-		return nil, nil, err
+	for _, v := range sbom {
+		return v, nil
 	}
-	return img, dtic, nil
+	return sbomStub{}, nil
+}
+
+func (inp tplInput) Provenance() (provenanceStub, error) {
+	provenance, err := inp.result.Provenance()
+	if err != nil {
+		return provenanceStub{}, nil
+	}
+	for _, v := range provenance {
+		return v, nil
+	}
+	return provenanceStub{}, nil
+}
+
+type tplInputs struct {
+	Name     string                     `json:"name,omitempty"`
+	Manifest interface{}                `json:"manifest,omitempty"`
+	Image    map[string]*ocispecs.Image `json:"image,omitempty"`
+
+	result *result
+}
+
+func (inp tplInputs) SBOM() (map[string]sbomStub, error) {
+	return inp.result.SBOM()
+}
+
+func (inp tplInputs) Provenance() (map[string]provenanceStub, error) {
+	return inp.result.Provenance()
 }

vendor/github.com/containerd/containerd/remotes/docker/pusher.go

@@ -377,17 +377,24 @@ func (pw *pushWriter) Write(p []byte) (n int, err error) {
 
 			// If content has already been written, the bytes
 			// cannot be written and the caller must reset
-			if status.Offset > 0 {
-				status.Offset = 0
-				status.UpdatedAt = time.Now()
-				pw.tracker.SetStatus(pw.ref, status)
-				return 0, content.ErrReset
-			}
+			status.Offset = 0
+			status.UpdatedAt = time.Now()
+			pw.tracker.SetStatus(pw.ref, status)
+			return 0, content.ErrReset
 		default:
 		}
 	}
 
 	n, err = pw.pipe.Write(p)
+	if errors.Is(err, io.ErrClosedPipe) {
+		// if the pipe is closed, we might have the original error on the error
+		// channel - so we should try and get it
+		select {
+		case err2 := <-pw.errC:
+			err = err2
+		default:
+		}
+	}
 	status.Offset += int64(n)
 	status.UpdatedAt = time.Now()
 	pw.tracker.SetStatus(pw.ref, status)
@@ -428,7 +435,7 @@ func (pw *pushWriter) Digest() digest.Digest {
 
 func (pw *pushWriter) Commit(ctx context.Context, size int64, expected digest.Digest, opts ...content.Opt) error {
 	// Check whether read has already thrown an error
-	if _, err := pw.pipe.Write([]byte{}); err != nil && err != io.ErrClosedPipe {
+	if _, err := pw.pipe.Write([]byte{}); err != nil && !errors.Is(err, io.ErrClosedPipe) {
 		return fmt.Errorf("pipe error before commit: %w", err)
 	}
 
@@ -439,9 +446,7 @@ func (pw *pushWriter) Commit(ctx context.Context, size int64, expected digest.Di
 	var resp *http.Response
 	select {
 	case err := <-pw.errC:
-		if err != nil {
-			return err
-		}
+		return err
 	case resp = <-pw.respC:
 		defer resp.Body.Close()
 	case p, ok := <-pw.pipeC:
@@ -453,18 +458,17 @@ func (pw *pushWriter) Commit(ctx context.Context, size int64, expected digest.Di
 		}
 		pw.pipe.CloseWithError(content.ErrReset)
 		pw.pipe = p
+
+		// If content has already been written, the bytes
+		// cannot be written again and the caller must reset
 		status, err := pw.tracker.GetStatus(pw.ref)
 		if err != nil {
 			return err
 		}
-		// If content has already been written, the bytes
-		// cannot be written again and the caller must reset
-		if status.Offset > 0 {
-			status.Offset = 0
-			status.UpdatedAt = time.Now()
-			pw.tracker.SetStatus(pw.ref, status)
-			return content.ErrReset
-		}
+		status.Offset = 0
+		status.UpdatedAt = time.Now()
+		pw.tracker.SetStatus(pw.ref, status)
+		return content.ErrReset
 	}
 
 	// 201 is specified return status, some registries return

vendor/github.com/containerd/containerd/version/version.go

@@ -23,7 +23,7 @@ var (
 	Package = "github.com/containerd/containerd"
 
 	// Version holds the complete version number. Filled in at linking time.
-	Version = "1.6.11+unknown"
+	Version = "1.6.15+unknown"
 
 	// Revision is filled with the VCS (e.g. git) revision being used to build
 	// the program at linking time.

vendor/github.com/docker/cli-docs-tool/README.md

@@ -1,5 +1,5 @@
 [![PkgGoDev](https://img.shields.io/badge/go.dev-docs-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/github.com/docker/cli-docs-tool)
-[![Test Status](https://img.shields.io/github/workflow/status/docker/cli-docs-tool/test?label=test&logo=github&style=flat-square)](https://github.com/docker/cli-docs-tool/actions?query=workflow%3Atest)
+[![Test Status](https://img.shields.io/github/actions/workflow/status/docker/cli-docs-tool/test.yml?branch=main&label=test&logo=github&style=flat-square)](https://github.com/docker/cli-docs-tool/actions?query=workflow%3Atest)
 [![Go Report Card](https://goreportcard.com/badge/github.com/docker/cli-docs-tool)](https://goreportcard.com/report/github.com/docker/cli-docs-tool)
 
 ## About

vendor/github.com/docker/cli-docs-tool/clidocstool_md.go

@@ -20,7 +20,9 @@ import (
 	"log"
 	"os"
 	"path/filepath"
+	"regexp"
 	"strings"
+	"text/tabwriter"
 	"text/template"
 
 	"github.com/docker/cli-docs-tool/annotation"
@@ -28,6 +30,11 @@ import (
 	"github.com/spf13/pflag"
 )
 
+var (
+	nlRegexp  = regexp.MustCompile(`\r?\n`)
+	adjustSep = regexp.MustCompile(`\|:---(\s+)`)
+)
+
 // GenMarkdownTree will generate a markdown page for this command and all
 // descendants in the directory given.
 func (c *Client) GenMarkdownTree(cmd *cobra.Command) error {
@@ -144,6 +151,42 @@ func mdMakeLink(txt, link string, f *pflag.Flag, isAnchor bool) string {
 	return "[" + txt + "](" + link + ")"
 }
 
+type mdTable struct {
+	out       *strings.Builder
+	tabWriter *tabwriter.Writer
+}
+
+func newMdTable(headers ...string) *mdTable {
+	w := &strings.Builder{}
+	t := &mdTable{
+		out: w,
+		// Using tabwriter.Debug, which uses "|" as separator instead of tabs,
+		// which is what we want. It's a bit of a hack, but does the job :)
+		tabWriter: tabwriter.NewWriter(w, 5, 5, 1, ' ', tabwriter.Debug),
+	}
+	t.addHeader(headers...)
+	return t
+}
+
+func (t *mdTable) addHeader(cols ...string) {
+	t.AddRow(cols...)
+	_, _ = t.tabWriter.Write([]byte("|" + strings.Repeat(":---\t", len(cols)) + "\n"))
+}
+
+func (t *mdTable) AddRow(cols ...string) {
+	for i := range cols {
+		cols[i] = mdEscapePipe(cols[i])
+	}
+	_, _ = t.tabWriter.Write([]byte("| " + strings.Join(cols, "\t ") + "\t\n"))
+}
+
+func (t *mdTable) String() string {
+	_ = t.tabWriter.Flush()
+	return adjustSep.ReplaceAllStringFunc(t.out.String()+"\n", func(in string) string {
+		return strings.ReplaceAll(in, " ", "-")
+	})
+}
+
 func mdCmdOutput(cmd *cobra.Command, old string) (string, error) {
 	b := &strings.Builder{}
 
@@ -152,46 +195,41 @@ func mdCmdOutput(cmd *cobra.Command, old string) (string, error) {
 		desc = cmd.Long
 	}
 	if desc != "" {
-		fmt.Fprintf(b, "%s\n\n", desc)
+		b.WriteString(desc + "\n\n")
 	}
 
 	if aliases := getAliases(cmd); len(aliases) != 0 {
-		fmt.Fprint(b, "### Aliases\n\n")
-		fmt.Fprint(b, "`"+strings.Join(aliases, "`, `")+"`")
-		fmt.Fprint(b, "\n\n")
+		b.WriteString("### Aliases\n\n")
+		b.WriteString("`" + strings.Join(aliases, "`, `") + "`")
+		b.WriteString("\n\n")
 	}
 
 	if len(cmd.Commands()) != 0 {
-		fmt.Fprint(b, "### Subcommands\n\n")
-		fmt.Fprint(b, "| Name | Description |\n")
-		fmt.Fprint(b, "| --- | --- |\n")
+		b.WriteString("### Subcommands\n\n")
+		table := newMdTable("Name", "Description")
 		for _, c := range cmd.Commands() {
-			fmt.Fprintf(b, "| [`%s`](%s) | %s |\n", c.Name(), mdFilename(c), c.Short)
+			table.AddRow(fmt.Sprintf("[`%s`](%s)", c.Name(), mdFilename(c)), c.Short)
 		}
-		fmt.Fprint(b, "\n\n")
+		b.WriteString(table.String() + "\n")
 	}
 
 	// add inherited flags before checking for flags availability
 	cmd.Flags().AddFlagSet(cmd.InheritedFlags())
 
 	if cmd.Flags().HasAvailableFlags() {
-		fmt.Fprint(b, "### Options\n\n")
-		fmt.Fprint(b, "| Name | Type | Default | Description |\n")
-		fmt.Fprint(b, "| --- | --- | --- | --- |\n")
-
+		b.WriteString("### Options\n\n")
+		table := newMdTable("Name", "Type", "Default", "Description")
 		cmd.Flags().VisitAll(func(f *pflag.Flag) {
 			if f.Hidden {
 				return
 			}
 			isLink := strings.Contains(old, "<a name=\""+f.Name+"\"></a>")
-			fmt.Fprint(b, "| ")
+			var name string
 			if f.Shorthand != "" {
-				name := "`-" + f.Shorthand + "`"
-				name = mdMakeLink(name, f.Name, f, isLink)
-				fmt.Fprintf(b, "%s, ", name)
+				name = mdMakeLink("`-"+f.Shorthand+"`", f.Name, f, isLink)
+				name += ", "
 			}
-			name := "`--" + f.Name + "`"
-			name = mdMakeLink(name, f.Name, f, isLink)
+			name += mdMakeLink("`--"+f.Name+"`", f.Name, f, isLink)
 
 			var ftype string
 			if f.Value.Type() != "bool" {
@@ -216,9 +254,9 @@ func mdCmdOutput(cmd *cobra.Command, old string) (string, error) {
 			} else if cd, ok := cmd.Annotations[annotation.CodeDelimiter]; ok {
 				usage = strings.ReplaceAll(usage, cd, "`")
 			}
-			fmt.Fprintf(b, "%s | %s | %s | %s |\n", mdEscapePipe(name), mdEscapePipe(ftype), mdEscapePipe(defval), mdEscapePipe(usage))
+			table.AddRow(name, ftype, defval, mdReplaceNewline(usage))
 		})
-		fmt.Fprintln(b, "")
+		b.WriteString(table.String())
 	}
 
 	return b.String(), nil
@@ -227,3 +265,7 @@ func mdCmdOutput(cmd *cobra.Command, old string) (string, error) {
 func mdEscapePipe(s string) string {
 	return strings.ReplaceAll(s, `|`, `\|`)
 }
+
+func mdReplaceNewline(s string) string {
+	return nlRegexp.ReplaceAllString(s, "<br>")
+}

vendor/github.com/docker/cli/cli/connhelper/commandconn/commandconn.go

@@ -37,7 +37,7 @@ func New(ctx context.Context, cmd string, args ...string) (net.Conn, error) {
 		c   commandConn
 		err error
 	)
-	c.cmd = exec.CommandContext(ctx, cmd, args...)
+	c.cmd = exec.Command(cmd, args...)
 	// we assume that args never contains sensitive information
 	logrus.Debugf("commandconn: starting %s with %v", cmd, args)
 	c.cmd.Env = os.Environ()

vendor/github.com/docker/cli/cli/flags/options.go

@@ -71,8 +71,6 @@ func (o *ClientOptions) InstallFlags(flags *pflag.FlagSet) {
 	flags.BoolVar(&o.TLS, "tls", dockerTLS, "Use TLS; implied by --tlsverify")
 	flags.BoolVar(&o.TLSVerify, FlagTLSVerify, dockerTLSVerify, "Use TLS and verify the remote")
 
-	// TODO use flag flags.String("identity"}, "i", "", "Path to libtrust key file")
-
 	o.TLSOptions = &tlsconfig.Options{
 		CAFile:   filepath.Join(dockerCertPath, DefaultCaFile),
 		CertFile: filepath.Join(dockerCertPath, DefaultCertFile),

vendor/github.com/docker/docker/errdefs/http_helpers.go

@@ -2,14 +2,12 @@ package errdefs // import "github.com/docker/docker/errdefs"
 
 import (
 	"net/http"
-
-	"github.com/sirupsen/logrus"
 )
 
 // FromStatusCode creates an errdef error, based on the provided HTTP status-code
 func FromStatusCode(err error, statusCode int) error {
 	if err == nil {
-		return err
+		return nil
 	}
 	switch statusCode {
 	case http.StatusNotFound:
@@ -33,11 +31,6 @@ func FromStatusCode(err error, statusCode int) error {
 			err = System(err)
 		}
 	default:
-		logrus.WithError(err).WithFields(logrus.Fields{
-			"module":      "api",
-			"status_code": statusCode,
-		}).Debug("FIXME: Got an status-code for which error does not match any expected type!!!")
-
 		switch {
 		case statusCode >= 200 && statusCode < 400:
 			// it's a client error

vendor/github.com/moby/buildkit/api/services/control/control.pb.go

@@ -13,6 +13,7 @@ import (
 	_ "github.com/golang/protobuf/ptypes/timestamp"
 	types "github.com/moby/buildkit/api/types"
 	pb "github.com/moby/buildkit/solver/pb"
+	pb1 "github.com/moby/buildkit/sourcepolicy/pb"
 	github_com_moby_buildkit_util_entitlements "github.com/moby/buildkit/util/entitlements"
 	github_com_opencontainers_go_digest "github.com/opencontainers/go-digest"
 	grpc "google.golang.org/grpc"
@@ -377,6 +378,7 @@ type SolveRequest struct {
 	Entitlements         []github_com_moby_buildkit_util_entitlements.Entitlement `protobuf:"bytes,9,rep,name=Entitlements,proto3,customtype=github.com/moby/buildkit/util/entitlements.Entitlement" json:"Entitlements,omitempty"`
 	FrontendInputs       map[string]*pb.Definition                                `protobuf:"bytes,10,rep,name=FrontendInputs,proto3" json:"FrontendInputs,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
 	Internal             bool                                                     `protobuf:"varint,11,opt,name=Internal,proto3" json:"Internal,omitempty"`
+	SourcePolicy         *pb1.Policy                                              `protobuf:"bytes,12,opt,name=SourcePolicy,proto3" json:"SourcePolicy,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}                                                 `json:"-"`
 	XXX_unrecognized     []byte                                                   `json:"-"`
 	XXX_sizecache        int32                                                    `json:"-"`
@@ -485,6 +487,13 @@ func (m *SolveRequest) GetInternal() bool {
 	return false
 }
 
+func (m *SolveRequest) GetSourcePolicy() *pb1.Policy {
+	if m != nil {
+		return m.SourcePolicy
+	}
+	return nil
+}
+
 type CacheOptions struct {
 	// ExportRefDeprecated is deprecated in favor or the new Exports since BuildKit v0.4.0.
 	// When ExportRefDeprecated is set, the solver appends
@@ -1496,6 +1505,9 @@ type BuildHistoryRecord struct {
 	Generation           int32                       `protobuf:"varint,12,opt,name=Generation,proto3" json:"Generation,omitempty"`
 	Trace                *Descriptor                 `protobuf:"bytes,13,opt,name=trace,proto3" json:"trace,omitempty"`
 	Pinned               bool                        `protobuf:"varint,14,opt,name=pinned,proto3" json:"pinned,omitempty"`
+	NumCachedSteps       int32                       `protobuf:"varint,15,opt,name=numCachedSteps,proto3" json:"numCachedSteps,omitempty"`
+	NumTotalSteps        int32                       `protobuf:"varint,16,opt,name=numTotalSteps,proto3" json:"numTotalSteps,omitempty"`
+	NumCompletedSteps    int32                       `protobuf:"varint,17,opt,name=numCompletedSteps,proto3" json:"numCompletedSteps,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}                    `json:"-"`
 	XXX_unrecognized     []byte                      `json:"-"`
 	XXX_sizecache        int32                       `json:"-"`
@@ -1632,6 +1644,27 @@ func (m *BuildHistoryRecord) GetPinned() bool {
 	return false
 }
 
+func (m *BuildHistoryRecord) GetNumCachedSteps() int32 {
+	if m != nil {
+		return m.NumCachedSteps
+	}
+	return 0
+}
+
+func (m *BuildHistoryRecord) GetNumTotalSteps() int32 {
+	if m != nil {
+		return m.NumTotalSteps
+	}
+	return 0
+}
+
+func (m *BuildHistoryRecord) GetNumCompletedSteps() int32 {
+	if m != nil {
+		return m.NumCompletedSteps
+	}
+	return 0
+}
+
 type UpdateBuildHistoryRequest struct {
 	Ref                  string   `protobuf:"bytes,1,opt,name=Ref,proto3" json:"Ref,omitempty"`
 	Pinned               bool     `protobuf:"varint,2,opt,name=Pinned,proto3" json:"Pinned,omitempty"`
@@ -1953,143 +1986,149 @@ func init() {
 func init() { proto.RegisterFile("control.proto", fileDescriptor_0c5120591600887d) }
 
 var fileDescriptor_0c5120591600887d = []byte{
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 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -2853,6 +2892,18 @@ func (m *SolveRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i -= len(m.XXX_unrecognized)
 		copy(dAtA[i:], m.XXX_unrecognized)
 	}
+	if m.SourcePolicy != nil {
+		{
+			size, err := m.SourcePolicy.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintControl(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x62
+	}
 	if m.Internal {
 		i--
 		if m.Internal {
@@ -3339,23 +3390,23 @@ func (m *Vertex) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		dAtA[i] = 0x3a
 	}
 	if m.Completed != nil {
-		n7, err7 := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.Completed, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(*m.Completed):])
-		if err7 != nil {
-			return 0, err7
-		}
-		i -= n7
-		i = encodeVarintControl(dAtA, i, uint64(n7))
-		i--
-		dAtA[i] = 0x32
-	}
-	if m.Started != nil {
-		n8, err8 := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.Started, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(*m.Started):])
+		n8, err8 := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.Completed, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(*m.Completed):])
 		if err8 != nil {
 			return 0, err8
 		}
 		i -= n8
 		i = encodeVarintControl(dAtA, i, uint64(n8))
 		i--
+		dAtA[i] = 0x32
+	}
+	if m.Started != nil {
+		n9, err9 := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.Started, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(*m.Started):])
+		if err9 != nil {
+			return 0, err9
+		}
+		i -= n9
+		i = encodeVarintControl(dAtA, i, uint64(n9))
+		i--
 		dAtA[i] = 0x2a
 	}
 	if m.Cached {
@@ -3419,31 +3470,31 @@ func (m *VertexStatus) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		copy(dAtA[i:], m.XXX_unrecognized)
 	}
 	if m.Completed != nil {
-		n9, err9 := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.Completed, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(*m.Completed):])
-		if err9 != nil {
-			return 0, err9
-		}
-		i -= n9
-		i = encodeVarintControl(dAtA, i, uint64(n9))
-		i--
-		dAtA[i] = 0x42
-	}
-	if m.Started != nil {
-		n10, err10 := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.Started, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(*m.Started):])
+		n10, err10 := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.Completed, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(*m.Completed):])
 		if err10 != nil {
 			return 0, err10
 		}
 		i -= n10
 		i = encodeVarintControl(dAtA, i, uint64(n10))
 		i--
+		dAtA[i] = 0x42
+	}
+	if m.Started != nil {
+		n11, err11 := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.Started, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(*m.Started):])
+		if err11 != nil {
+			return 0, err11
+		}
+		i -= n11
+		i = encodeVarintControl(dAtA, i, uint64(n11))
+		i--
 		dAtA[i] = 0x3a
 	}
-	n11, err11 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.Timestamp, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.Timestamp):])
-	if err11 != nil {
-		return 0, err11
+	n12, err12 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.Timestamp, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.Timestamp):])
+	if err12 != nil {
+		return 0, err12
 	}
-	i -= n11
-	i = encodeVarintControl(dAtA, i, uint64(n11))
+	i -= n12
+	i = encodeVarintControl(dAtA, i, uint64(n12))
 	i--
 	dAtA[i] = 0x32
 	if m.Total != 0 {
@@ -3516,12 +3567,12 @@ func (m *VertexLog) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i--
 		dAtA[i] = 0x18
 	}
-	n12, err12 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.Timestamp, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.Timestamp):])
-	if err12 != nil {
-		return 0, err12
+	n13, err13 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.Timestamp, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.Timestamp):])
+	if err13 != nil {
+		return 0, err13
 	}
-	i -= n12
-	i = encodeVarintControl(dAtA, i, uint64(n12))
+	i -= n13
+	i = encodeVarintControl(dAtA, i, uint64(n13))
 	i--
 	dAtA[i] = 0x12
 	if len(m.Vertex) > 0 {
@@ -3921,6 +3972,25 @@ func (m *BuildHistoryRecord) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i -= len(m.XXX_unrecognized)
 		copy(dAtA[i:], m.XXX_unrecognized)
 	}
+	if m.NumCompletedSteps != 0 {
+		i = encodeVarintControl(dAtA, i, uint64(m.NumCompletedSteps))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0x88
+	}
+	if m.NumTotalSteps != 0 {
+		i = encodeVarintControl(dAtA, i, uint64(m.NumTotalSteps))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0x80
+	}
+	if m.NumCachedSteps != 0 {
+		i = encodeVarintControl(dAtA, i, uint64(m.NumCachedSteps))
+		i--
+		dAtA[i] = 0x78
+	}
 	if m.Pinned {
 		i--
 		if m.Pinned {
@@ -4018,23 +4088,23 @@ func (m *BuildHistoryRecord) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		dAtA[i] = 0x42
 	}
 	if m.CompletedAt != nil {
-		n20, err20 := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.CompletedAt, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(*m.CompletedAt):])
-		if err20 != nil {
-			return 0, err20
-		}
-		i -= n20
-		i = encodeVarintControl(dAtA, i, uint64(n20))
-		i--
-		dAtA[i] = 0x3a
-	}
-	if m.CreatedAt != nil {
-		n21, err21 := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.CreatedAt, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(*m.CreatedAt):])
+		n21, err21 := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.CompletedAt, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(*m.CompletedAt):])
 		if err21 != nil {
 			return 0, err21
 		}
 		i -= n21
 		i = encodeVarintControl(dAtA, i, uint64(n21))
 		i--
+		dAtA[i] = 0x3a
+	}
+	if m.CreatedAt != nil {
+		n22, err22 := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.CreatedAt, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(*m.CreatedAt):])
+		if err22 != nil {
+			return 0, err22
+		}
+		i -= n22
+		i = encodeVarintControl(dAtA, i, uint64(n22))
+		i--
 		dAtA[i] = 0x32
 	}
 	if m.Error != nil {
@@ -4546,6 +4616,10 @@ func (m *SolveRequest) Size() (n int) {
 	if m.Internal {
 		n += 2
 	}
+	if m.SourcePolicy != nil {
+		l = m.SourcePolicy.Size()
+		n += 1 + l + sovControl(uint64(l))
+	}
 	if m.XXX_unrecognized != nil {
 		n += len(m.XXX_unrecognized)
 	}
@@ -5043,6 +5117,15 @@ func (m *BuildHistoryRecord) Size() (n int) {
 	if m.Pinned {
 		n += 2
 	}
+	if m.NumCachedSteps != 0 {
+		n += 1 + sovControl(uint64(m.NumCachedSteps))
+	}
+	if m.NumTotalSteps != 0 {
+		n += 2 + sovControl(uint64(m.NumTotalSteps))
+	}
+	if m.NumCompletedSteps != 0 {
+		n += 2 + sovControl(uint64(m.NumCompletedSteps))
+	}
 	if m.XXX_unrecognized != nil {
 		n += len(m.XXX_unrecognized)
 	}
@@ -6514,6 +6597,42 @@ func (m *SolveRequest) Unmarshal(dAtA []byte) error {
 				}
 			}
 			m.Internal = bool(v != 0)
+		case 12:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field SourcePolicy", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowControl
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthControl
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthControl
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.SourcePolicy == nil {
+				m.SourcePolicy = &pb1.Policy{}
+			}
+			if err := m.SourcePolicy.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipControl(dAtA[iNdEx:])
@@ -9925,6 +10044,63 @@ func (m *BuildHistoryRecord) Unmarshal(dAtA []byte) error {
 				}
 			}
 			m.Pinned = bool(v != 0)
+		case 15:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field NumCachedSteps", wireType)
+			}
+			m.NumCachedSteps = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowControl
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.NumCachedSteps |= int32(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 16:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field NumTotalSteps", wireType)
+			}
+			m.NumTotalSteps = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowControl
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.NumTotalSteps |= int32(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 17:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field NumCompletedSteps", wireType)
+			}
+			m.NumCompletedSteps = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowControl
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.NumCompletedSteps |= int32(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
 		default:
 			iNdEx = preIndex
 			skippy, err := skipControl(dAtA[iNdEx:])

vendor/github.com/moby/buildkit/api/services/control/control.proto

@@ -8,6 +8,7 @@ import "github.com/moby/buildkit/solver/pb/ops.proto";
 import "github.com/moby/buildkit/api/types/worker.proto";
 // import "github.com/containerd/containerd/api/types/descriptor.proto";
 import "github.com/gogo/googleapis/google/rpc/status.proto";
+import "github.com/moby/buildkit/sourcepolicy/pb/policy.proto";
 
 option (gogoproto.sizer_all) = true;
 option (gogoproto.marshaler_all) = true;
@@ -68,6 +69,7 @@ message SolveRequest {
 	repeated string Entitlements = 9 [(gogoproto.customtype) = "github.com/moby/buildkit/util/entitlements.Entitlement" ];
 	map<string, pb.Definition> FrontendInputs = 10;
 	bool Internal = 11; // Internal builds are not recorded in build history
+	moby.buildkit.v1.sourcepolicy.Policy SourcePolicy = 12;
 }
 
 message CacheOptions {
@@ -202,8 +204,10 @@ message BuildHistoryRecord {
 	int32 Generation = 12;
 	Descriptor trace = 13;
 	bool pinned = 14;
+	int32 numCachedSteps = 15;
+	int32 numTotalSteps = 16;
+	int32 numCompletedSteps = 17;
 	// TODO: tags
-	// TODO: steps/cache summary
 	// TODO: unclipped logs
 }
 
@@ -230,4 +234,4 @@ message BuildResultInfo {
 message Exporter {
 	string Type = 1;
 	map<string, string> Attrs = 2;
-}
+}

vendor/github.com/moby/buildkit/client/llb/resolver.go

@@ -42,9 +42,16 @@ const (
 )
 
 type ResolveImageConfigOpt struct {
-	Platform     *ocispecs.Platform
-	ResolveMode  string
-	LogName      string
-	ResolverType // default is ResolverTypeRegistry
-	SessionID    string
+	ResolverType
+
+	Platform    *ocispecs.Platform
+	ResolveMode string
+	LogName     string
+
+	Store ResolveImageConfigOptStore
+}
+
+type ResolveImageConfigOptStore struct {
+	SessionID string
+	StoreID   string
 }

vendor/github.com/moby/buildkit/client/llb/source.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	_ "crypto/sha256" // for opencontainers/go-digest
 	"encoding/json"
-	"fmt"
 	"os"
 	"strconv"
 	"strings"
@@ -455,7 +454,7 @@ func Differ(t DiffType, required bool) LocalOption {
 	})
 }
 
-func OCILayout(store string, digest digest.Digest, opts ...OCILayoutOption) State {
+func OCILayout(ref string, opts ...OCILayoutOption) State {
 	gi := &OCILayoutInfo{}
 
 	for _, o := range opts {
@@ -464,17 +463,17 @@ func OCILayout(store string, digest digest.Digest, opts ...OCILayoutOption) Stat
 	attrs := map[string]string{}
 	if gi.sessionID != "" {
 		attrs[pb.AttrOCILayoutSessionID] = gi.sessionID
-		addCap(&gi.Constraints, pb.CapSourceOCILayoutSessionID)
 	}
-
-	if ll := gi.layerLimit; ll != nil {
-		attrs[pb.AttrOCILayoutLayerLimit] = strconv.FormatInt(int64(*ll), 10)
-		addCap(&gi.Constraints, pb.CapSourceOCILayoutLayerLimit)
+	if gi.storeID != "" {
+		attrs[pb.AttrOCILayoutStoreID] = gi.storeID
+	}
+	if gi.layerLimit != nil {
+		attrs[pb.AttrOCILayoutLayerLimit] = strconv.FormatInt(int64(*gi.layerLimit), 10)
 	}
 
 	addCap(&gi.Constraints, pb.CapSourceOCILayout)
 
-	source := NewSource(fmt.Sprintf("oci-layout://%s@%s", store, digest), attrs, gi.Constraints)
+	source := NewSource("oci-layout://"+ref, attrs, gi.Constraints)
 	return NewState(source.Output())
 }
 
@@ -488,9 +487,10 @@ func (fn ociLayoutOptionFunc) SetOCILayoutOption(li *OCILayoutInfo) {
 	fn(li)
 }
 
-func OCISessionID(id string) OCILayoutOption {
+func OCIStore(sessionID string, storeID string) OCILayoutOption {
 	return ociLayoutOptionFunc(func(oi *OCILayoutInfo) {
-		oi.sessionID = id
+		oi.sessionID = sessionID
+		oi.storeID = storeID
 	})
 }
 
@@ -503,6 +503,7 @@ func OCILayerLimit(limit int) OCILayoutOption {
 type OCILayoutInfo struct {
 	constraintsWrapper
 	sessionID  string
+	storeID    string
 	layerLimit *int
 }
 

vendor/github.com/moby/buildkit/client/ociindex/ociindex.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"io"
 	"os"
+	"path"
 
 	"github.com/gofrs/flock"
 	ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
@@ -11,16 +12,132 @@ import (
 )
 
 const (
-	// IndexJSONLockFileSuffix is the suffix of the lock file
-	IndexJSONLockFileSuffix = ".lock"
+	// indexFile is the name of the index file
+	indexFile = "index.json"
+
+	// lockFileSuffix is the suffix of the lock file
+	lockFileSuffix = ".lock"
 )
 
-// PutDescToIndex puts desc to index with tag.
-// Existing manifests with the same tag will be removed from the index.
-func PutDescToIndex(index *ocispecs.Index, desc ocispecs.Descriptor, tag string) error {
-	if index == nil {
-		index = &ocispecs.Index{}
+type StoreIndex struct {
+	indexPath string
+	lockPath  string
+}
+
+func NewStoreIndex(storePath string) StoreIndex {
+	indexPath := path.Join(storePath, indexFile)
+	return StoreIndex{
+		indexPath: indexPath,
+		lockPath:  indexPath + lockFileSuffix,
 	}
+}
+
+func (s StoreIndex) Read() (*ocispecs.Index, error) {
+	lock := flock.New(s.lockPath)
+	locked, err := lock.TryRLock()
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not lock %s", s.lockPath)
+	}
+	if !locked {
+		return nil, errors.Errorf("could not lock %s", s.lockPath)
+	}
+	defer func() {
+		lock.Unlock()
+		os.RemoveAll(s.lockPath)
+	}()
+
+	b, err := os.ReadFile(s.indexPath)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not read %s", s.indexPath)
+	}
+	var idx ocispecs.Index
+	if err := json.Unmarshal(b, &idx); err != nil {
+		return nil, errors.Wrapf(err, "could not unmarshal %s (%q)", s.indexPath, string(b))
+	}
+	return &idx, nil
+}
+
+func (s StoreIndex) Put(tag string, desc ocispecs.Descriptor) error {
+	lock := flock.New(s.lockPath)
+	locked, err := lock.TryLock()
+	if err != nil {
+		return errors.Wrapf(err, "could not lock %s", s.lockPath)
+	}
+	if !locked {
+		return errors.Errorf("could not lock %s", s.lockPath)
+	}
+	defer func() {
+		lock.Unlock()
+		os.RemoveAll(s.lockPath)
+	}()
+
+	f, err := os.OpenFile(s.indexPath, os.O_RDWR|os.O_CREATE, 0644)
+	if err != nil {
+		return errors.Wrapf(err, "could not open %s", s.indexPath)
+	}
+	defer f.Close()
+
+	var idx ocispecs.Index
+	b, err := io.ReadAll(f)
+	if err != nil {
+		return errors.Wrapf(err, "could not read %s", s.indexPath)
+	}
+	if len(b) > 0 {
+		if err := json.Unmarshal(b, &idx); err != nil {
+			return errors.Wrapf(err, "could not unmarshal %s (%q)", s.indexPath, string(b))
+		}
+	}
+
+	if err = insertDesc(&idx, desc, tag); err != nil {
+		return err
+	}
+
+	b, err = json.Marshal(idx)
+	if err != nil {
+		return err
+	}
+	if _, err = f.WriteAt(b, 0); err != nil {
+		return err
+	}
+	if err = f.Truncate(int64(len(b))); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (s StoreIndex) Get(tag string) (*ocispecs.Descriptor, error) {
+	idx, err := s.Read()
+	if err != nil {
+		return nil, err
+	}
+
+	for _, m := range idx.Manifests {
+		if t, ok := m.Annotations[ocispecs.AnnotationRefName]; ok && t == tag {
+			return &m, nil
+		}
+	}
+	return nil, nil
+}
+
+func (s StoreIndex) GetSingle() (*ocispecs.Descriptor, error) {
+	idx, err := s.Read()
+	if err != nil {
+		return nil, err
+	}
+
+	if len(idx.Manifests) == 1 {
+		return &idx.Manifests[0], nil
+	}
+	return nil, nil
+}
+
+// insertDesc puts desc to index with tag.
+// Existing manifests with the same tag will be removed from the index.
+func insertDesc(index *ocispecs.Index, desc ocispecs.Descriptor, tag string) error {
+	if index == nil {
+		return nil
+	}
+
 	if index.SchemaVersion == 0 {
 		index.SchemaVersion = 2
 	}
@@ -41,73 +158,3 @@ func PutDescToIndex(index *ocispecs.Index, desc ocispecs.Descriptor, tag string)
 	index.Manifests = append(index.Manifests, desc)
 	return nil
 }
-
-func PutDescToIndexJSONFileLocked(indexJSONPath string, desc ocispecs.Descriptor, tag string) error {
-	lockPath := indexJSONPath + IndexJSONLockFileSuffix
-	lock := flock.New(lockPath)
-	locked, err := lock.TryLock()
-	if err != nil {
-		return errors.Wrapf(err, "could not lock %s", lockPath)
-	}
-	if !locked {
-		return errors.Errorf("could not lock %s", lockPath)
-	}
-	defer func() {
-		lock.Unlock()
-		os.RemoveAll(lockPath)
-	}()
-	f, err := os.OpenFile(indexJSONPath, os.O_RDWR|os.O_CREATE, 0644)
-	if err != nil {
-		return errors.Wrapf(err, "could not open %s", indexJSONPath)
-	}
-	defer f.Close()
-	var idx ocispecs.Index
-	b, err := io.ReadAll(f)
-	if err != nil {
-		return errors.Wrapf(err, "could not read %s", indexJSONPath)
-	}
-	if len(b) > 0 {
-		if err := json.Unmarshal(b, &idx); err != nil {
-			return errors.Wrapf(err, "could not unmarshal %s (%q)", indexJSONPath, string(b))
-		}
-	}
-	if err = PutDescToIndex(&idx, desc, tag); err != nil {
-		return err
-	}
-	b, err = json.Marshal(idx)
-	if err != nil {
-		return err
-	}
-	if _, err = f.WriteAt(b, 0); err != nil {
-		return err
-	}
-	if err = f.Truncate(int64(len(b))); err != nil {
-		return err
-	}
-	return nil
-}
-
-func ReadIndexJSONFileLocked(indexJSONPath string) (*ocispecs.Index, error) {
-	lockPath := indexJSONPath + IndexJSONLockFileSuffix
-	lock := flock.New(lockPath)
-	locked, err := lock.TryRLock()
-	if err != nil {
-		return nil, errors.Wrapf(err, "could not lock %s", lockPath)
-	}
-	if !locked {
-		return nil, errors.Errorf("could not lock %s", lockPath)
-	}
-	defer func() {
-		lock.Unlock()
-		os.RemoveAll(lockPath)
-	}()
-	b, err := os.ReadFile(indexJSONPath)
-	if err != nil {
-		return nil, errors.Wrapf(err, "could not read %s", indexJSONPath)
-	}
-	var idx ocispecs.Index
-	if err := json.Unmarshal(b, &idx); err != nil {
-		return nil, errors.Wrapf(err, "could not unmarshal %s (%q)", indexJSONPath, string(b))
-	}
-	return &idx, nil
-}

vendor/github.com/moby/buildkit/client/solve.go

@@ -22,6 +22,7 @@ import (
 	"github.com/moby/buildkit/session/filesync"
 	"github.com/moby/buildkit/session/grpchijack"
 	"github.com/moby/buildkit/solver/pb"
+	spb "github.com/moby/buildkit/sourcepolicy/pb"
 	"github.com/moby/buildkit/util/bklog"
 	"github.com/moby/buildkit/util/entitlements"
 	ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
@@ -47,6 +48,8 @@ type SolveOpt struct {
 	SharedSession         *session.Session // TODO: refactor to better session syncing
 	SessionPreInitialized bool             // TODO: refactor to better session syncing
 	Internal              bool
+	SourcePolicy          *spb.Policy
+	Ref                   string
 }
 
 type ExportEntry struct {
@@ -93,6 +96,9 @@ func (c *Client) solve(ctx context.Context, def *llb.Definition, runGateway runG
 	}
 
 	ref := identity.NewID()
+	if opt.Ref != "" {
+		ref = opt.Ref
+	}
 	eg, ctx := errgroup.WithContext(ctx)
 
 	statusContext, cancelStatus := context.WithCancel(context.Background())
@@ -127,7 +133,7 @@ func (c *Client) solve(ctx context.Context, def *llb.Definition, runGateway runG
 		ex = opt.Exports[0]
 	}
 
-	indicesToUpdate := []string{}
+	storesToUpdate := []string{}
 
 	if !opt.SessionPreInitialized {
 		if len(syncedDirs) > 0 {
@@ -192,7 +198,7 @@ func (c *Client) solve(ctx context.Context, def *llb.Definition, runGateway runG
 					return nil, err
 				}
 				contentStores["export"] = cs
-				indicesToUpdate = append(indicesToUpdate, filepath.Join(ex.OutputDir, "index.json"))
+				storesToUpdate = append(storesToUpdate, ex.OutputDir)
 			default:
 				s.Allow(filesync.NewFSSyncTargetDir(ex.OutputDir))
 			}
@@ -261,6 +267,7 @@ func (c *Client) solve(ctx context.Context, def *llb.Definition, runGateway runG
 			Cache:          cacheOpt.options,
 			Entitlements:   opt.AllowedEntitlements,
 			Internal:       opt.Internal,
+			SourcePolicy:   opt.SourcePolicy,
 		})
 		if err != nil {
 			return errors.Wrap(err, "failed to solve")
@@ -324,8 +331,9 @@ func (c *Client) solve(ctx context.Context, def *llb.Definition, runGateway runG
 		if err = json.Unmarshal([]byte(manifestDescJSON), &manifestDesc); err != nil {
 			return nil, err
 		}
-		for indexJSONPath, tag := range cacheOpt.indicesToUpdate {
-			if err = ociindex.PutDescToIndexJSONFileLocked(indexJSONPath, manifestDesc, tag); err != nil {
+		for storePath, tag := range cacheOpt.storesToUpdate {
+			idx := ociindex.NewStoreIndex(storePath)
+			if err := idx.Put(tag, manifestDesc); err != nil {
 				return nil, err
 			}
 		}
@@ -339,12 +347,13 @@ func (c *Client) solve(ctx context.Context, def *llb.Definition, runGateway runG
 		if err = json.Unmarshal([]byte(manifestDescDt), &manifestDesc); err != nil {
 			return nil, err
 		}
-		for _, indexJSONPath := range indicesToUpdate {
+		for _, storePath := range storesToUpdate {
 			tag := "latest"
 			if t, ok := res.ExporterResponse["image.name"]; ok {
 				tag = t
 			}
-			if err = ociindex.PutDescToIndexJSONFileLocked(indexJSONPath, manifestDesc, tag); err != nil {
+			idx := ociindex.NewStoreIndex(storePath)
+			if err := idx.Put(tag, manifestDesc); err != nil {
 				return nil, err
 			}
 		}
@@ -403,10 +412,10 @@ func defaultSessionName() string {
 }
 
 type cacheOptions struct {
-	options         controlapi.CacheOptions
-	contentStores   map[string]content.Store // key: ID of content store ("local:" + csDir)
-	indicesToUpdate map[string]string        // key: index.JSON file name, value: tag
-	frontendAttrs   map[string]string
+	options        controlapi.CacheOptions
+	contentStores  map[string]content.Store // key: ID of content store ("local:" + csDir)
+	storesToUpdate map[string]string        // key: path to content store, value: tag
+	frontendAttrs  map[string]string
 }
 
 func parseCacheOptions(ctx context.Context, isGateway bool, opt SolveOpt) (*cacheOptions, error) {
@@ -415,7 +424,7 @@ func parseCacheOptions(ctx context.Context, isGateway bool, opt SolveOpt) (*cach
 		cacheImports []*controlapi.CacheOptionsEntry
 	)
 	contentStores := make(map[string]content.Store)
-	indicesToUpdate := make(map[string]string) // key: index.JSON file name, value: tag
+	storesToUpdate := make(map[string]string)
 	frontendAttrs := make(map[string]string)
 	for _, ex := range opt.CacheExports {
 		if ex.Type == "local" {
@@ -437,8 +446,7 @@ func parseCacheOptions(ctx context.Context, isGateway bool, opt SolveOpt) (*cach
 				tag = t
 			}
 			// TODO(AkihiroSuda): support custom index JSON path and tag
-			indexJSONPath := filepath.Join(csDir, "index.json")
-			indicesToUpdate[indexJSONPath] = tag
+			storesToUpdate[csDir] = tag
 		}
 		if ex.Type == "registry" {
 			regRef := ex.Attrs["ref"]
@@ -462,27 +470,26 @@ func parseCacheOptions(ctx context.Context, isGateway bool, opt SolveOpt) (*cach
 				bklog.G(ctx).Warning("local cache import at " + csDir + " not found due to err: " + err.Error())
 				continue
 			}
-			// if digest is not specified, load from "latest" tag
+			// if digest is not specified, attempt to load from tag
 			if im.Attrs["digest"] == "" {
-				idx, err := ociindex.ReadIndexJSONFileLocked(filepath.Join(csDir, "index.json"))
+				tag := "latest"
+				if t, ok := im.Attrs["tag"]; ok {
+					tag = t
+				}
+
+				idx := ociindex.NewStoreIndex(csDir)
+				desc, err := idx.Get(tag)
 				if err != nil {
 					bklog.G(ctx).Warning("local cache import at " + csDir + " not found due to err: " + err.Error())
 					continue
 				}
-				for _, m := range idx.Manifests {
-					tag := "latest"
-					if t, ok := im.Attrs["tag"]; ok {
-						tag = t
-					}
-					if m.Annotations[ocispecs.AnnotationRefName] == tag {
-						im.Attrs["digest"] = string(m.Digest)
-						break
-					}
-				}
-				if im.Attrs["digest"] == "" {
-					return nil, errors.New("local cache importer requires either explicit digest, \"latest\" tag or custom tag on index.json")
+				if desc != nil {
+					im.Attrs["digest"] = desc.Digest.String()
 				}
 			}
+			if im.Attrs["digest"] == "" {
+				return nil, errors.New("local cache importer requires either explicit digest, \"latest\" tag or custom tag on index.json")
+			}
 			contentStores["local:"+csDir] = cs
 		}
 		if im.Type == "registry" {
@@ -510,9 +517,9 @@ func parseCacheOptions(ctx context.Context, isGateway bool, opt SolveOpt) (*cach
 			Exports: cacheExports,
 			Imports: cacheImports,
 		},
-		contentStores:   contentStores,
-		indicesToUpdate: indicesToUpdate,
-		frontendAttrs:   frontendAttrs,
+		contentStores:  contentStores,
+		storesToUpdate: storesToUpdate,
+		frontendAttrs:  frontendAttrs,
 	}
 	return &res, nil
 }

vendor/github.com/moby/buildkit/frontend/attestations/parse.go

@@ -1,81 +0,0 @@
-package attestations
-
-import (
-	"encoding/csv"
-	"strings"
-
-	"github.com/pkg/errors"
-)
-
-const (
-	KeyTypeSbom       = "sbom"
-	KeyTypeProvenance = "provenance"
-)
-
-const (
-	defaultSBOMGenerator = "docker/buildkit-syft-scanner:stable-1"
-)
-
-func Filter(v map[string]string) map[string]string {
-	attests := make(map[string]string)
-	for k, v := range v {
-		if strings.HasPrefix(k, "attest:") {
-			attests[k] = v
-			continue
-		}
-		if strings.HasPrefix(k, "build-arg:BUILDKIT_ATTEST_") {
-			attests[k] = v
-			continue
-		}
-	}
-	return attests
-}
-
-func Validate(values map[string]map[string]string) (map[string]map[string]string, error) {
-	for k := range values {
-		if k != KeyTypeSbom && k != KeyTypeProvenance {
-			return nil, errors.Errorf("unknown attestation type %q", k)
-		}
-	}
-	return values, nil
-}
-
-func Parse(values map[string]string) (map[string]map[string]string, error) {
-	attests := make(map[string]string)
-	for k, v := range values {
-		if strings.HasPrefix(k, "attest:") {
-			attests[strings.ToLower(strings.TrimPrefix(k, "attest:"))] = v
-			continue
-		}
-		if strings.HasPrefix(k, "build-arg:BUILDKIT_ATTEST_") {
-			attests[strings.ToLower(strings.TrimPrefix(k, "build-arg:BUILDKIT_ATTEST_"))] = v
-			continue
-		}
-	}
-
-	out := make(map[string]map[string]string)
-	for k, v := range attests {
-		attrs := make(map[string]string)
-		out[k] = attrs
-		if k == KeyTypeSbom {
-			attrs["generator"] = defaultSBOMGenerator
-		}
-		if v == "" {
-			continue
-		}
-		csvReader := csv.NewReader(strings.NewReader(v))
-		fields, err := csvReader.Read()
-		if err != nil {
-			return nil, errors.Wrapf(err, "failed to parse %s", k)
-		}
-		for _, field := range fields {
-			parts := strings.SplitN(field, "=", 2)
-			if len(parts) != 2 {
-				parts = append(parts, "")
-			}
-			attrs[parts[0]] = parts[1]
-		}
-	}
-
-	return Validate(out)
-}

vendor/github.com/moby/buildkit/frontend/gateway/client/client.go

@@ -8,6 +8,7 @@ import (
 	"github.com/moby/buildkit/client/llb"
 	"github.com/moby/buildkit/solver/pb"
 	"github.com/moby/buildkit/solver/result"
+	spb "github.com/moby/buildkit/sourcepolicy/pb"
 	"github.com/moby/buildkit/util/apicaps"
 	digest "github.com/opencontainers/go-digest"
 	ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
@@ -128,6 +129,7 @@ type SolveRequest struct {
 	FrontendOpt    map[string]string
 	FrontendInputs map[string]*pb.Definition
 	CacheImports   []CacheOptionsEntry
+	SourcePolicies []*spb.Policy
 }
 
 type CacheOptionsEntry struct {

vendor/github.com/moby/buildkit/frontend/gateway/grpcclient/client.go

@@ -382,6 +382,7 @@ func (c *grpcClient) Solve(ctx context.Context, creq client.SolveRequest) (res *
 		AllowResultReturn:   true,
 		AllowResultArrayRef: true,
 		CacheImports:        cacheImports,
+		SourcePolicies:      creq.SourcePolicies,
 	}
 
 	// backwards compatibility with inline return
@@ -488,7 +489,15 @@ func (c *grpcClient) ResolveImageConfig(ctx context.Context, ref string, opt llb
 			OSFeatures:   platform.OSFeatures,
 		}
 	}
-	resp, err := c.client.ResolveImageConfig(ctx, &pb.ResolveImageConfigRequest{Ref: ref, Platform: p, ResolveMode: opt.ResolveMode, LogName: opt.LogName, ResolverType: int32(opt.ResolverType), SessionID: opt.SessionID})
+	resp, err := c.client.ResolveImageConfig(ctx, &pb.ResolveImageConfigRequest{
+		ResolverType: int32(opt.ResolverType),
+		Ref:          ref,
+		Platform:     p,
+		ResolveMode:  opt.ResolveMode,
+		LogName:      opt.LogName,
+		SessionID:    opt.Store.SessionID,
+		StoreID:      opt.Store.StoreID,
+	})
 	if err != nil {
 		return "", nil, err
 	}

vendor/github.com/moby/buildkit/frontend/gateway/pb/gateway.pb.go

@@ -11,7 +11,8 @@ import (
 	proto "github.com/gogo/protobuf/proto"
 	types1 "github.com/moby/buildkit/api/types"
 	pb "github.com/moby/buildkit/solver/pb"
-	pb1 "github.com/moby/buildkit/util/apicaps/pb"
+	pb1 "github.com/moby/buildkit/sourcepolicy/pb"
+	pb2 "github.com/moby/buildkit/util/apicaps/pb"
 	github_com_opencontainers_go_digest "github.com/opencontainers/go-digest"
 	types "github.com/tonistiigi/fsutil/types"
 	grpc "google.golang.org/grpc"
@@ -741,6 +742,7 @@ type ResolveImageConfigRequest struct {
 	LogName              string       `protobuf:"bytes,4,opt,name=LogName,proto3" json:"LogName,omitempty"`
 	ResolverType         int32        `protobuf:"varint,5,opt,name=ResolverType,proto3" json:"ResolverType,omitempty"`
 	SessionID            string       `protobuf:"bytes,6,opt,name=SessionID,proto3" json:"SessionID,omitempty"`
+	StoreID              string       `protobuf:"bytes,7,opt,name=StoreID,proto3" json:"StoreID,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}     `json:"-"`
 	XXX_unrecognized     []byte       `json:"-"`
 	XXX_sizecache        int32        `json:"-"`
@@ -821,6 +823,13 @@ func (m *ResolveImageConfigRequest) GetSessionID() string {
 	return ""
 }
 
+func (m *ResolveImageConfigRequest) GetStoreID() string {
+	if m != nil {
+		return m.StoreID
+	}
+	return ""
+}
+
 type ResolveImageConfigResponse struct {
 	Digest               github_com_opencontainers_go_digest.Digest `protobuf:"bytes,1,opt,name=Digest,proto3,customtype=github.com/opencontainers/go-digest.Digest" json:"Digest"`
 	Config               []byte                                     `protobuf:"bytes,2,opt,name=Config,proto3" json:"Config,omitempty"`
@@ -885,6 +894,7 @@ type SolveRequest struct {
 	// apicaps:CapFrontendInputs
 	FrontendInputs       map[string]*pb.Definition `protobuf:"bytes,13,rep,name=FrontendInputs,proto3" json:"FrontendInputs,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
 	Evaluate             bool                      `protobuf:"varint,14,opt,name=Evaluate,proto3" json:"Evaluate,omitempty"`
+	SourcePolicies       []*pb1.Policy             `protobuf:"bytes,15,rep,name=SourcePolicies,proto3" json:"SourcePolicies,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}                  `json:"-"`
 	XXX_unrecognized     []byte                    `json:"-"`
 	XXX_sizecache        int32                     `json:"-"`
@@ -993,6 +1003,13 @@ func (m *SolveRequest) GetEvaluate() bool {
 	return false
 }
 
+func (m *SolveRequest) GetSourcePolicies() []*pb1.Policy {
+	if m != nil {
+		return m.SourcePolicies
+	}
+	return nil
+}
+
 // CacheOptionsEntry corresponds to the control.CacheOptionsEntry
 type CacheOptionsEntry struct {
 	Type                 string            `protobuf:"bytes,1,opt,name=Type,proto3" json:"Type,omitempty"`
@@ -1609,8 +1626,8 @@ func (m *PingRequest) XXX_DiscardUnknown() {
 var xxx_messageInfo_PingRequest proto.InternalMessageInfo
 
 type PongResponse struct {
-	FrontendAPICaps      []pb1.APICap           `protobuf:"bytes,1,rep,name=FrontendAPICaps,proto3" json:"FrontendAPICaps"`
-	LLBCaps              []pb1.APICap           `protobuf:"bytes,2,rep,name=LLBCaps,proto3" json:"LLBCaps"`
+	FrontendAPICaps      []pb2.APICap           `protobuf:"bytes,1,rep,name=FrontendAPICaps,proto3" json:"FrontendAPICaps"`
+	LLBCaps              []pb2.APICap           `protobuf:"bytes,2,rep,name=LLBCaps,proto3" json:"LLBCaps"`
 	Workers              []*types1.WorkerRecord `protobuf:"bytes,3,rep,name=Workers,proto3" json:"Workers,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}               `json:"-"`
 	XXX_unrecognized     []byte                 `json:"-"`
@@ -1650,14 +1667,14 @@ func (m *PongResponse) XXX_DiscardUnknown() {
 
 var xxx_messageInfo_PongResponse proto.InternalMessageInfo
 
-func (m *PongResponse) GetFrontendAPICaps() []pb1.APICap {
+func (m *PongResponse) GetFrontendAPICaps() []pb2.APICap {
 	if m != nil {
 		return m.FrontendAPICaps
 	}
 	return nil
 }
 
-func (m *PongResponse) GetLLBCaps() []pb1.APICap {
+func (m *PongResponse) GetLLBCaps() []pb2.APICap {
 	if m != nil {
 		return m.LLBCaps
 	}
@@ -2610,157 +2627,161 @@ func init() {
 func init() { proto.RegisterFile("gateway.proto", fileDescriptor_f1a937782ebbded5) }
 
 var fileDescriptor_f1a937782ebbded5 = []byte{
-	// 2397 bytes of a gzipped FileDescriptorProto
+	// 2452 bytes of a gzipped FileDescriptorProto
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+	0xa4, 0xa3, 0x0f, 0x62, 0x67, 0x88, 0x8e, 0x00, 0x6e, 0x66, 0x6d, 0x62, 0x7e, 0x65, 0xf0, 0x2b,
+	0x7c, 0x7b, 0xf5, 0x23, 0x13, 0xb2, 0x91, 0x19, 0x8e, 0x91, 0x18, 0xc8, 0xbc, 0x3d, 0x95, 0x8c,
+	0x32, 0xee, 0x48, 0xe4, 0xa3, 0xd0, 0x0d, 0xc9, 0xbe, 0xc8, 0xbb, 0x08, 0xc9, 0x9c, 0x90, 0x6f,
+	0xcd, 0xb8, 0x65, 0xe0, 0x39, 0x43, 0xc4, 0x9b, 0xa9, 0x5b, 0x7b, 0x0a, 0x64, 0x9e, 0x33, 0x1d,
+	0x3a, 0x6f, 0x95, 0xbe, 0x7d, 0x73, 0xc5, 0xf8, 0xfb, 0x9b, 0x2b, 0xc6, 0x3f, 0xdf, 0x5c, 0x31,
+	0x4e, 0x0a, 0xe2, 0x7f, 0xce, 0xdb, 0xff, 0x0d, 0x00, 0x00, 0xff, 0xff, 0xc4, 0x91, 0xe5, 0xca,
+	0x70, 0x1e, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -3993,6 +4014,13 @@ func (m *ResolveImageConfigRequest) MarshalToSizedBuffer(dAtA []byte) (int, erro
 		i -= len(m.XXX_unrecognized)
 		copy(dAtA[i:], m.XXX_unrecognized)
 	}
+	if len(m.StoreID) > 0 {
+		i -= len(m.StoreID)
+		copy(dAtA[i:], m.StoreID)
+		i = encodeVarintGateway(dAtA, i, uint64(len(m.StoreID)))
+		i--
+		dAtA[i] = 0x3a
+	}
 	if len(m.SessionID) > 0 {
 		i -= len(m.SessionID)
 		copy(dAtA[i:], m.SessionID)
@@ -4106,6 +4134,20 @@ func (m *SolveRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i -= len(m.XXX_unrecognized)
 		copy(dAtA[i:], m.XXX_unrecognized)
 	}
+	if len(m.SourcePolicies) > 0 {
+		for iNdEx := len(m.SourcePolicies) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.SourcePolicies[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintGateway(dAtA, i, uint64(size))
+			}
+			i--
+			dAtA[i] = 0x7a
+		}
+	}
 	if m.Evaluate {
 		i--
 		if m.Evaluate {
@@ -5912,6 +5954,10 @@ func (m *ResolveImageConfigRequest) Size() (n int) {
 	if l > 0 {
 		n += 1 + l + sovGateway(uint64(l))
 	}
+	l = len(m.StoreID)
+	if l > 0 {
+		n += 1 + l + sovGateway(uint64(l))
+	}
 	if m.XXX_unrecognized != nil {
 		n += len(m.XXX_unrecognized)
 	}
@@ -5995,6 +6041,12 @@ func (m *SolveRequest) Size() (n int) {
 	if m.Evaluate {
 		n += 2
 	}
+	if len(m.SourcePolicies) > 0 {
+		for _, e := range m.SourcePolicies {
+			l = e.Size()
+			n += 1 + l + sovGateway(uint64(l))
+		}
+	}
 	if m.XXX_unrecognized != nil {
 		n += len(m.XXX_unrecognized)
 	}
@@ -8716,6 +8768,38 @@ func (m *ResolveImageConfigRequest) Unmarshal(dAtA []byte) error {
 			}
 			m.SessionID = string(dAtA[iNdEx:postIndex])
 			iNdEx = postIndex
+		case 7:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field StoreID", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowGateway
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthGateway
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthGateway
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.StoreID = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipGateway(dAtA[iNdEx:])
@@ -9356,6 +9440,40 @@ func (m *SolveRequest) Unmarshal(dAtA []byte) error {
 				}
 			}
 			m.Evaluate = bool(v != 0)
+		case 15:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field SourcePolicies", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowGateway
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthGateway
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthGateway
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.SourcePolicies = append(m.SourcePolicies, &pb1.Policy{})
+			if err := m.SourcePolicies[len(m.SourcePolicies)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipGateway(dAtA[iNdEx:])
@@ -10709,7 +10827,7 @@ func (m *PongResponse) Unmarshal(dAtA []byte) error {
 			if postIndex > l {
 				return io.ErrUnexpectedEOF
 			}
-			m.FrontendAPICaps = append(m.FrontendAPICaps, pb1.APICap{})
+			m.FrontendAPICaps = append(m.FrontendAPICaps, pb2.APICap{})
 			if err := m.FrontendAPICaps[len(m.FrontendAPICaps)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
 				return err
 			}
@@ -10743,7 +10861,7 @@ func (m *PongResponse) Unmarshal(dAtA []byte) error {
 			if postIndex > l {
 				return io.ErrUnexpectedEOF
 			}
-			m.LLBCaps = append(m.LLBCaps, pb1.APICap{})
+			m.LLBCaps = append(m.LLBCaps, pb2.APICap{})
 			if err := m.LLBCaps[len(m.LLBCaps)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
 				return err
 			}

vendor/github.com/moby/buildkit/frontend/gateway/pb/gateway.proto

@@ -8,6 +8,7 @@ import "github.com/moby/buildkit/solver/pb/ops.proto";
 import "github.com/moby/buildkit/api/types/worker.proto";
 import "github.com/moby/buildkit/util/apicaps/pb/caps.proto";
 import "github.com/tonistiigi/fsutil/types/stat.proto";
+import "github.com/moby/buildkit/sourcepolicy/pb/policy.proto";
 
 
 option (gogoproto.sizer_all) = true;
@@ -122,6 +123,7 @@ message ResolveImageConfigRequest {
 	string LogName = 4;
 	int32 ResolverType = 5;
 	string SessionID = 6;
+	string StoreID = 7;
 }
 
 message ResolveImageConfigResponse {
@@ -148,6 +150,8 @@ message SolveRequest {
 	map<string, pb.Definition> FrontendInputs = 13;
 
 	bool Evaluate = 14;
+
+	repeated moby.buildkit.v1.sourcepolicy.Policy SourcePolicies = 15;
 }
 
 // CacheOptionsEntry corresponds to the control.CacheOptionsEntry

vendor/github.com/moby/buildkit/session/sshforward/copy.go

@@ -14,16 +14,24 @@ type Stream interface {
 }
 
 func Copy(ctx context.Context, conn io.ReadWriteCloser, stream Stream, closeStream func() error) error {
+	defer conn.Close()
 	g, ctx := errgroup.WithContext(ctx)
 
 	g.Go(func() (retErr error) {
 		p := &BytesMessage{}
 		for {
 			if err := stream.RecvMsg(p); err != nil {
-				conn.Close()
 				if err == io.EOF {
+					// indicates client performed CloseSend, but they may still be
+					// reading data
+					if conn, ok := conn.(interface {
+						CloseWrite() error
+					}); ok {
+						conn.CloseWrite()
+					}
 					return nil
 				}
+				conn.Close()
 				return errors.WithStack(err)
 			}
 			select {

vendor/github.com/moby/buildkit/solver/pb/attr.go

@@ -29,6 +29,7 @@ const AttrImageRecordType = "image.recordtype"
 const AttrImageLayerLimit = "image.layerlimit"
 
 const AttrOCILayoutSessionID = "oci.session"
+const AttrOCILayoutStoreID = "oci.store"
 const AttrOCILayoutLayerLimit = "oci.layerlimit"
 
 const AttrLocalDiffer = "local.differ"

vendor/github.com/moby/buildkit/solver/pb/caps.go

@@ -35,9 +35,7 @@ const (
 	CapSourceHTTPPerm     apicaps.CapID = "source.http.perm"
 	CapSourceHTTPUIDGID   apicaps.CapID = "soruce.http.uidgid"
 
-	CapSourceOCILayout           apicaps.CapID = "source.ocilayout"
-	CapSourceOCILayoutSessionID  apicaps.CapID = "source.ocilayout.sessionid"
-	CapSourceOCILayoutLayerLimit apicaps.CapID = "source.ocilayout.layerlimit"
+	CapSourceOCILayout apicaps.CapID = "source.ocilayout"
 
 	CapBuildOpLLBFileName apicaps.CapID = "source.buildop.llbfilename"
 
@@ -86,6 +84,8 @@ const (
 
 	// CapSourceDateEpoch is the capability to automatically handle the date epoch
 	CapSourceDateEpoch apicaps.CapID = "exporter.sourcedateepoch"
+
+	CapSourcePolicy apicaps.CapID = "source.policy"
 )
 
 func init() {
@@ -221,18 +221,6 @@ func init() {
 		Status:  apicaps.CapStatusExperimental,
 	})
 
-	Caps.Init(apicaps.Cap{
-		ID:      CapSourceOCILayoutSessionID,
-		Enabled: true,
-		Status:  apicaps.CapStatusExperimental,
-	})
-
-	Caps.Init(apicaps.Cap{
-		ID:      CapSourceOCILayoutLayerLimit,
-		Enabled: true,
-		Status:  apicaps.CapStatusExperimental,
-	})
-
 	Caps.Init(apicaps.Cap{
 		ID:      CapSourceHTTPUIDGID,
 		Enabled: true,
@@ -465,4 +453,10 @@ func init() {
 		Enabled: true,
 		Status:  apicaps.CapStatusExperimental,
 	})
+
+	Caps.Init(apicaps.Cap{
+		ID:      CapSourcePolicy,
+		Enabled: true,
+		Status:  apicaps.CapStatusExperimental,
+	})
 }

vendor/github.com/moby/buildkit/solver/result/attestation.go

@@ -9,12 +9,13 @@ import (
 
 const (
 	AttestationReasonKey     = "reason"
+	AttestationSBOMCore      = "sbom-core"
 	AttestationInlineOnlyKey = "inline-only"
 )
 
-var (
-	AttestationReasonSBOM       = []byte("sbom")
-	AttestationReasonProvenance = []byte("provenance")
+const (
+	AttestationReasonSBOM       = "sbom"
+	AttestationReasonProvenance = "provenance"
 )
 
 type Attestation[T any] struct {

vendor/github.com/moby/buildkit/sourcepolicy/pb/generate.go

@@ -0,0 +1,3 @@
+package moby_buildkit_v1_sourcepolicy //nolint:revive
+
+//go:generate protoc -I=. --gogofaster_out=plugins=grpc:. policy.proto

vendor/github.com/moby/buildkit/sourcepolicy/pb/json.go

@@ -0,0 +1,62 @@
+package moby_buildkit_v1_sourcepolicy //nolint:revive
+
+import (
+	"github.com/gogo/protobuf/proto"
+	"github.com/pkg/errors"
+)
+
+// MarshalJSON implements json.Marshaler with custom marshaling for PolicyAction.
+// It gives the string form of the enum value.
+func (a PolicyAction) MarshalJSON() ([]byte, error) {
+	return proto.MarshalJSONEnum(PolicyAction_name, int32(a))
+}
+
+func (a *PolicyAction) UnmarshalJSON(data []byte) error {
+	val, err := proto.UnmarshalJSONEnum(PolicyAction_value, data, a.String())
+	if err != nil {
+		return err
+	}
+
+	_, ok := PolicyAction_name[val]
+	if !ok {
+		return errors.Errorf("invalid PolicyAction value: %d", val)
+	}
+	*a = PolicyAction(val)
+	return nil
+}
+
+func (a AttrMatch) MarshalJSON() ([]byte, error) {
+	return proto.MarshalJSONEnum(AttrMatch_name, int32(a))
+}
+
+func (a *AttrMatch) UnmarshalJSON(data []byte) error {
+	val, err := proto.UnmarshalJSONEnum(AttrMatch_value, data, a.String())
+	if err != nil {
+		return err
+	}
+
+	_, ok := AttrMatch_name[val]
+	if !ok {
+		return errors.Errorf("invalid AttrMatch value: %d", val)
+	}
+	*a = AttrMatch(val)
+	return nil
+}
+
+func (a MatchType) MarshalJSON() ([]byte, error) {
+	return proto.MarshalJSONEnum(MatchType_name, int32(a))
+}
+
+func (a *MatchType) UnmarshalJSON(data []byte) error {
+	val, err := proto.UnmarshalJSONEnum(MatchType_value, data, a.String())
+	if err != nil {
+		return err
+	}
+
+	_, ok := AttrMatch_name[val]
+	if !ok {
+		return errors.Errorf("invalid MatchType value: %d", val)
+	}
+	*a = MatchType(val)
+	return nil
+}

vendor/github.com/moby/buildkit/sourcepolicy/pb/policy.proto

@@ -0,0 +1,64 @@
+syntax = "proto3";
+
+package moby.buildkit.v1.sourcepolicy;
+
+// Rule defines the action(s) to take when a source is matched
+message Rule {
+	PolicyAction action = 1; 
+	Selector selector = 2;
+	Update updates = 3;
+}
+
+// Update contains updates to the matched build step after rule is applied
+message Update {
+	string identifier = 1;
+	map<string, string> attrs = 2;
+}
+
+// Selector identifies a source to match a policy to
+message Selector {
+	string identifier = 1;
+	// MatchType is the type of match to perform on the source identifier
+	MatchType match_type = 2;
+	repeated AttrConstraint constraints = 3;
+}
+
+// PolicyAction defines the action to take when a source is matched
+enum PolicyAction {
+	ALLOW = 0;
+	DENY = 1;
+	CONVERT = 2;
+}
+
+// AttrConstraint defines a constraint on a source attribute
+message AttrConstraint {
+	string key = 1;
+	string value = 2;
+	AttrMatch condition = 3;
+}
+
+// AttrMatch defines the condition to match a source attribute
+enum AttrMatch {
+	EQUAL = 0;
+	NOTEQUAL = 1;
+	MATCHES = 2;
+}
+
+// Policy is the list of rules the policy engine will perform
+message Policy {
+	int64 version = 1; // Currently 1
+	repeated Rule rules = 2;
+}
+
+// Match type is used to determine how a rule source is matched
+enum MatchType {
+	// WILDCARD is the default matching type.
+	// It may first attempt to due an exact match but will follow up with a wildcard match
+	// For something more powerful, use REGEX
+	WILDCARD = 0;
+	// EXACT treats the source identifier as a litteral string match
+	EXACT = 1;
+	// REGEX treats the source identifier as a regular expression
+	// With regex matching you can also use match groups to replace values in the destination identifier
+	REGEX = 2;
+}

vendor/github.com/moby/buildkit/util/contentutil/multiprovider.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/containerd/containerd/content"
 	"github.com/containerd/containerd/errdefs"
+	"github.com/moby/buildkit/session"
 	digest "github.com/opencontainers/go-digest"
 	ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/pkg/errors"
@@ -90,3 +91,23 @@ func (mp *MultiProvider) Add(dgst digest.Digest, p content.Provider) {
 	defer mp.mu.Unlock()
 	mp.sub[dgst] = p
 }
+
+func (mp *MultiProvider) UnlazySession(desc ocispecs.Descriptor) session.Group {
+	type unlazySession interface {
+		UnlazySession(ocispecs.Descriptor) session.Group
+	}
+
+	mp.mu.RLock()
+	if p, ok := mp.sub[desc.Digest]; ok {
+		mp.mu.RUnlock()
+		if cd, ok := p.(unlazySession); ok {
+			return cd.UnlazySession(desc)
+		}
+	} else {
+		mp.mu.RUnlock()
+	}
+	if cd, ok := mp.base.(unlazySession); ok {
+		return cd.UnlazySession(desc)
+	}
+	return nil
+}

vendor/github.com/moby/buildkit/util/tracing/detect/detect.go

@@ -73,21 +73,31 @@ func detectExporter() (sdktrace.SpanExporter, error) {
 	return nil, nil
 }
 
-func detect() error {
-	tp = trace.NewNoopTracerProvider()
-
+func getExporter() (sdktrace.SpanExporter, error) {
 	exp, err := detectExporter()
 	if err != nil {
-		return err
+		return nil, err
+	}
+
+	if exp != nil {
+		exp = &threadSafeExporterWrapper{
+			exporter: exp,
+		}
 	}
 
 	if Recorder != nil {
 		Recorder.SpanExporter = exp
 		exp = Recorder
 	}
+	return exp, nil
+}
 
-	if exp == nil {
-		return nil
+func detect() error {
+	tp = trace.NewNoopTracerProvider()
+
+	exp, err := getExporter()
+	if err != nil || exp == nil {
+		return err
 	}
 
 	// enable log with traceID when valid exporter

vendor/github.com/moby/buildkit/util/tracing/detect/otlp.go

@@ -16,7 +16,7 @@ func init() {
 }
 
 func otlpExporter() (sdktrace.SpanExporter, error) {
-	set := os.Getenv("OTEL_TRACES_EXPORTER") == "otpl" || os.Getenv("OTEL_EXPORTER_OTLP_ENDPOINT") != "" || os.Getenv("OTEL_EXPORTER_OTLP_TRACES_ENDPOINT") != ""
+	set := os.Getenv("OTEL_TRACES_EXPORTER") == "otlp" || os.Getenv("OTEL_EXPORTER_OTLP_ENDPOINT") != "" || os.Getenv("OTEL_EXPORTER_OTLP_TRACES_ENDPOINT") != ""
 	if !set {
 		return nil, nil
 	}

vendor/github.com/moby/buildkit/util/tracing/detect/recorder.go

@@ -43,10 +43,6 @@ func NewTraceRecorder() *TraceRecorder {
 }
 
 func (r *TraceRecorder) Record(traceID trace.TraceID) func() []tracetest.SpanStub {
-	if r.flush != nil {
-		r.flush(context.TODO())
-	}
-
 	r.mu.Lock()
 	defer r.mu.Unlock()
 
@@ -55,6 +51,10 @@ func (r *TraceRecorder) Record(traceID trace.TraceID) func() []tracetest.SpanStu
 	var spans []tracetest.SpanStub
 	return func() []tracetest.SpanStub {
 		once.Do(func() {
+			if r.flush != nil {
+				r.flush(context.TODO())
+			}
+
 			r.mu.Lock()
 			defer r.mu.Unlock()
 

vendor/github.com/moby/buildkit/util/tracing/detect/threadsafe.go

@@ -0,0 +1,26 @@
+package detect
+
+import (
+	"context"
+	"sync"
+
+	sdktrace "go.opentelemetry.io/otel/sdk/trace"
+)
+
+// threadSafeExporterWrapper wraps an OpenTelemetry SpanExporter and makes it thread-safe.
+type threadSafeExporterWrapper struct {
+	mu       sync.Mutex
+	exporter sdktrace.SpanExporter
+}
+
+func (tse *threadSafeExporterWrapper) ExportSpans(ctx context.Context, spans []sdktrace.ReadOnlySpan) error {
+	tse.mu.Lock()
+	defer tse.mu.Unlock()
+	return tse.exporter.ExportSpans(ctx, spans)
+}
+
+func (tse *threadSafeExporterWrapper) Shutdown(ctx context.Context) error {
+	tse.mu.Lock()
+	defer tse.mu.Unlock()
+	return tse.exporter.Shutdown(ctx)
+}

vendor/github.com/moby/sys/mountinfo/LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
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+
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+          notices within Derivative Works that You distribute, alongside
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+
+      You may add Your own copyright statement to Your modifications and
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+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
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+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
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+
+   6. Trademarks. This License does not grant permission to use the trade
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+
+   7. Disclaimer of Warranty. Unless required by applicable law or
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+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+
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+
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+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/moby/sys/mountinfo/doc.go

@@ -0,0 +1,44 @@
+// Package mountinfo provides a set of functions to retrieve information about OS mounts.
+//
+// Currently it supports Linux. For historical reasons, there is also some support for FreeBSD and OpenBSD,
+// and a shallow implementation for Windows, but in general this is Linux-only package, so
+// the rest of the document only applies to Linux, unless explicitly specified otherwise.
+//
+// In Linux, information about mounts seen by the current process is available from
+// /proc/self/mountinfo. Note that due to mount namespaces, different processes can
+// see different mounts. A per-process mountinfo table is available from /proc/<PID>/mountinfo,
+// where <PID> is a numerical process identifier.
+//
+// In general, /proc is not a very efficient interface, and mountinfo is not an exception.
+// For example, there is no way to get information about a specific mount point (i.e. it
+// is all-or-nothing). This package tries to hide the /proc ineffectiveness by using
+// parse filters while reading mountinfo. A filter can skip some entries, or stop
+// processing the rest of the file once the needed information is found.
+//
+// For mountinfo filters that accept path as an argument, the path must be absolute,
+// having all symlinks resolved, and being cleaned (i.e. no extra slashes or dots).
+// One way to achieve all of the above is to employ filepath.Abs followed by
+// filepath.EvalSymlinks (the latter calls filepath.Clean on the result so
+// there is no need to explicitly call filepath.Clean).
+//
+// NOTE that in many cases there is no need to consult mountinfo at all. Here are some
+// of the cases where mountinfo should not be parsed:
+//
+// 1. Before performing a mount. Usually, this is not needed, but if required (say to
+// prevent over-mounts), to check whether a directory is mounted, call os.Lstat
+// on it and its parent directory, and compare their st.Sys().(*syscall.Stat_t).Dev
+// fields -- if they differ, then the directory is the mount point. NOTE this does
+// not work for bind mounts. Optionally, the filesystem type can also be checked
+// by calling unix.Statfs and checking the Type field (i.e. filesystem type).
+//
+// 2. After performing a mount. If there is no error returned, the mount succeeded;
+// checking the mount table for a new mount is redundant and expensive.
+//
+// 3. Before performing an unmount. It is more efficient to do an unmount and ignore
+// a specific error (EINVAL) which tells the directory is not mounted.
+//
+// 4. After performing an unmount. If there is no error returned, the unmount succeeded.
+//
+// 5. To find the mount point root of a specific directory. You can perform os.Stat()
+// on the directory and traverse up until the Dev field of a parent directory differs.
+package mountinfo

vendor/github.com/moby/sys/mountinfo/mounted_linux.go

@@ -0,0 +1,101 @@
+package mountinfo
+
+import (
+	"os"
+	"path/filepath"
+
+	"golang.org/x/sys/unix"
+)
+
+// MountedFast is a method of detecting a mount point without reading
+// mountinfo from procfs. A caller can only trust the result if no error
+// and sure == true are returned. Otherwise, other methods (e.g. parsing
+// /proc/mounts) have to be used. If unsure, use Mounted instead (which
+// uses MountedFast, but falls back to parsing mountinfo if needed).
+//
+// If a non-existent path is specified, an appropriate error is returned.
+// In case the caller is not interested in this particular error, it should
+// be handled separately using e.g. errors.Is(err, fs.ErrNotExist).
+//
+// This function is only available on Linux. When available (since kernel
+// v5.6), openat2(2) syscall is used to reliably detect all mounts. Otherwise,
+// the implementation falls back to using stat(2), which can reliably detect
+// normal (but not bind) mounts.
+func MountedFast(path string) (mounted, sure bool, err error) {
+	// Root is always mounted.
+	if path == string(os.PathSeparator) {
+		return true, true, nil
+	}
+
+	path, err = normalizePath(path)
+	if err != nil {
+		return false, false, err
+	}
+	mounted, sure, err = mountedFast(path)
+	return
+}
+
+// mountedByOpenat2 is a method of detecting a mount that works for all kinds
+// of mounts (incl. bind mounts), but requires a recent (v5.6+) linux kernel.
+func mountedByOpenat2(path string) (bool, error) {
+	dir, last := filepath.Split(path)
+
+	dirfd, err := unix.Openat2(unix.AT_FDCWD, dir, &unix.OpenHow{
+		Flags: unix.O_PATH | unix.O_CLOEXEC,
+	})
+	if err != nil {
+		return false, &os.PathError{Op: "openat2", Path: dir, Err: err}
+	}
+	fd, err := unix.Openat2(dirfd, last, &unix.OpenHow{
+		Flags:   unix.O_PATH | unix.O_CLOEXEC | unix.O_NOFOLLOW,
+		Resolve: unix.RESOLVE_NO_XDEV,
+	})
+	_ = unix.Close(dirfd)
+	switch err { //nolint:errorlint // unix errors are bare
+	case nil: // definitely not a mount
+		_ = unix.Close(fd)
+		return false, nil
+	case unix.EXDEV: // definitely a mount
+		return true, nil
+	}
+	// not sure
+	return false, &os.PathError{Op: "openat2", Path: path, Err: err}
+}
+
+// mountedFast is similar to MountedFast, except it expects a normalized path.
+func mountedFast(path string) (mounted, sure bool, err error) {
+	// Root is always mounted.
+	if path == string(os.PathSeparator) {
+		return true, true, nil
+	}
+
+	// Try a fast path, using openat2() with RESOLVE_NO_XDEV.
+	mounted, err = mountedByOpenat2(path)
+	if err == nil {
+		return mounted, true, nil
+	}
+
+	// Another fast path: compare st.st_dev fields.
+	mounted, err = mountedByStat(path)
+	// This does not work for bind mounts, so false negative
+	// is possible, therefore only trust if return is true.
+	if mounted && err == nil {
+		return true, true, nil
+	}
+
+	return
+}
+
+func mounted(path string) (bool, error) {
+	path, err := normalizePath(path)
+	if err != nil {
+		return false, err
+	}
+	mounted, sure, err := mountedFast(path)
+	if sure && err == nil {
+		return mounted, nil
+	}
+
+	// Fallback to parsing mountinfo.
+	return mountedByMountinfo(path)
+}

vendor/github.com/moby/sys/mountinfo/mounted_unix.go

@@ -0,0 +1,53 @@
+//go:build linux || freebsd || openbsd || darwin
+// +build linux freebsd openbsd darwin
+
+package mountinfo
+
+import (
+	"os"
+	"path/filepath"
+
+	"golang.org/x/sys/unix"
+)
+
+func mountedByStat(path string) (bool, error) {
+	var st unix.Stat_t
+
+	if err := unix.Lstat(path, &st); err != nil {
+		return false, &os.PathError{Op: "stat", Path: path, Err: err}
+	}
+	dev := st.Dev
+	parent := filepath.Dir(path)
+	if err := unix.Lstat(parent, &st); err != nil {
+		return false, &os.PathError{Op: "stat", Path: parent, Err: err}
+	}
+	if dev != st.Dev {
+		// Device differs from that of parent,
+		// so definitely a mount point.
+		return true, nil
+	}
+	// NB: this does not detect bind mounts on Linux.
+	return false, nil
+}
+
+func normalizePath(path string) (realPath string, err error) {
+	if realPath, err = filepath.Abs(path); err != nil {
+		return "", err
+	}
+	if realPath, err = filepath.EvalSymlinks(realPath); err != nil {
+		return "", err
+	}
+	if _, err := os.Stat(realPath); err != nil {
+		return "", err
+	}
+	return realPath, nil
+}
+
+func mountedByMountinfo(path string) (bool, error) {
+	entries, err := GetMounts(SingleEntryFilter(path))
+	if err != nil {
+		return false, err
+	}
+
+	return len(entries) > 0, nil
+}

vendor/github.com/moby/sys/mountinfo/mountinfo.go

@@ -0,0 +1,67 @@
+package mountinfo
+
+import (
+	"os"
+)
+
+// GetMounts retrieves a list of mounts for the current running process,
+// with an optional filter applied (use nil for no filter).
+func GetMounts(f FilterFunc) ([]*Info, error) {
+	return parseMountTable(f)
+}
+
+// Mounted determines if a specified path is a mount point. In case of any
+// error, false (and an error) is returned.
+//
+// If a non-existent path is specified, an appropriate error is returned.
+// In case the caller is not interested in this particular error, it should
+// be handled separately using e.g. errors.Is(err, fs.ErrNotExist).
+func Mounted(path string) (bool, error) {
+	// root is always mounted
+	if path == string(os.PathSeparator) {
+		return true, nil
+	}
+	return mounted(path)
+}
+
+// Info reveals information about a particular mounted filesystem. This
+// struct is populated from the content in the /proc/<pid>/mountinfo file.
+type Info struct {
+	// ID is a unique identifier of the mount (may be reused after umount).
+	ID int
+
+	// Parent is the ID of the parent mount (or of self for the root
+	// of this mount namespace's mount tree).
+	Parent int
+
+	// Major and Minor are the major and the minor components of the Dev
+	// field of unix.Stat_t structure returned by unix.*Stat calls for
+	// files on this filesystem.
+	Major, Minor int
+
+	// Root is the pathname of the directory in the filesystem which forms
+	// the root of this mount.
+	Root string
+
+	// Mountpoint is the pathname of the mount point relative to the
+	// process's root directory.
+	Mountpoint string
+
+	// Options is a comma-separated list of mount options.
+	Options string
+
+	// Optional are zero or more fields of the form "tag[:value]",
+	// separated by a space.  Currently, the possible optional fields are
+	// "shared", "master", "propagate_from", and "unbindable". For more
+	// information, see mount_namespaces(7) Linux man page.
+	Optional string
+
+	// FSType is the filesystem type in the form "type[.subtype]".
+	FSType string
+
+	// Source is filesystem-specific information, or "none".
+	Source string
+
+	// VFSOptions is a comma-separated list of superblock options.
+	VFSOptions string
+}

vendor/github.com/moby/sys/mountinfo/mountinfo_bsd.go

@@ -0,0 +1,56 @@
+//go:build freebsd || openbsd || darwin
+// +build freebsd openbsd darwin
+
+package mountinfo
+
+import "golang.org/x/sys/unix"
+
+// parseMountTable returns information about mounted filesystems
+func parseMountTable(filter FilterFunc) ([]*Info, error) {
+	count, err := unix.Getfsstat(nil, unix.MNT_WAIT)
+	if err != nil {
+		return nil, err
+	}
+
+	entries := make([]unix.Statfs_t, count)
+	_, err = unix.Getfsstat(entries, unix.MNT_WAIT)
+	if err != nil {
+		return nil, err
+	}
+
+	var out []*Info
+	for _, entry := range entries {
+		var skip, stop bool
+		mountinfo := getMountinfo(&entry)
+
+		if filter != nil {
+			// filter out entries we're not interested in
+			skip, stop = filter(mountinfo)
+			if skip {
+				continue
+			}
+		}
+
+		out = append(out, mountinfo)
+		if stop {
+			break
+		}
+	}
+	return out, nil
+}
+
+func mounted(path string) (bool, error) {
+	path, err := normalizePath(path)
+	if err != nil {
+		return false, err
+	}
+	// Fast path: compare st.st_dev fields.
+	// This should always work for FreeBSD and OpenBSD.
+	mounted, err := mountedByStat(path)
+	if err == nil {
+		return mounted, nil
+	}
+
+	// Fallback to parsing mountinfo
+	return mountedByMountinfo(path)
+}

vendor/github.com/moby/sys/mountinfo/mountinfo_filters.go

@@ -0,0 +1,63 @@
+package mountinfo
+
+import "strings"
+
+// FilterFunc is a type defining a callback function for GetMount(),
+// used to filter out mountinfo entries we're not interested in,
+// and/or stop further processing if we found what we wanted.
+//
+// It takes a pointer to the Info struct (fully populated with all available
+// fields on the GOOS platform), and returns two booleans:
+//
+// skip: true if the entry should be skipped;
+//
+// stop: true if parsing should be stopped after the entry.
+type FilterFunc func(*Info) (skip, stop bool)
+
+// PrefixFilter discards all entries whose mount points do not start with, or
+// are equal to the path specified in prefix. The prefix path must be absolute,
+// have all symlinks resolved, and cleaned (i.e. no extra slashes or dots).
+//
+// PrefixFilter treats prefix as a path, not a partial prefix, which means that
+// given "/foo", "/foo/bar" and "/foobar" entries, PrefixFilter("/foo") returns
+// "/foo" and "/foo/bar", and discards "/foobar".
+func PrefixFilter(prefix string) FilterFunc {
+	return func(m *Info) (bool, bool) {
+		skip := !strings.HasPrefix(m.Mountpoint+"/", prefix+"/")
+		return skip, false
+	}
+}
+
+// SingleEntryFilter looks for a specific entry.
+func SingleEntryFilter(mp string) FilterFunc {
+	return func(m *Info) (bool, bool) {
+		if m.Mountpoint == mp {
+			return false, true // don't skip, stop now
+		}
+		return true, false // skip, keep going
+	}
+}
+
+// ParentsFilter returns all entries whose mount points
+// can be parents of a path specified, discarding others.
+//
+// For example, given /var/lib/docker/something, entries
+// like /var/lib/docker, /var and / are returned.
+func ParentsFilter(path string) FilterFunc {
+	return func(m *Info) (bool, bool) {
+		skip := !strings.HasPrefix(path, m.Mountpoint)
+		return skip, false
+	}
+}
+
+// FSTypeFilter returns all entries that match provided fstype(s).
+func FSTypeFilter(fstype ...string) FilterFunc {
+	return func(m *Info) (bool, bool) {
+		for _, t := range fstype {
+			if m.FSType == t {
+				return false, false // don't skip, keep going
+			}
+		}
+		return true, false // skip, keep going
+	}
+}

vendor/github.com/moby/sys/mountinfo/mountinfo_freebsdlike.go

@@ -0,0 +1,14 @@
+//go:build freebsd || darwin
+// +build freebsd darwin
+
+package mountinfo
+
+import "golang.org/x/sys/unix"
+
+func getMountinfo(entry *unix.Statfs_t) *Info {
+	return &Info{
+		Mountpoint: unix.ByteSliceToString(entry.Mntonname[:]),
+		FSType:     unix.ByteSliceToString(entry.Fstypename[:]),
+		Source:     unix.ByteSliceToString(entry.Mntfromname[:]),
+	}
+}

vendor/github.com/moby/sys/mountinfo/mountinfo_linux.go

@@ -0,0 +1,214 @@
+package mountinfo
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"strconv"
+	"strings"
+)
+
+// GetMountsFromReader retrieves a list of mounts from the
+// reader provided, with an optional filter applied (use nil
+// for no filter). This can be useful in tests or benchmarks
+// that provide fake mountinfo data, or when a source other
+// than /proc/self/mountinfo needs to be read from.
+//
+// This function is Linux-specific.
+func GetMountsFromReader(r io.Reader, filter FilterFunc) ([]*Info, error) {
+	s := bufio.NewScanner(r)
+	out := []*Info{}
+	for s.Scan() {
+		var err error
+
+		/*
+		   See http://man7.org/linux/man-pages/man5/proc.5.html
+
+		   36 35 98:0 /mnt1 /mnt2 rw,noatime master:1 - ext3 /dev/root rw,errors=continue
+		   (1)(2)(3)   (4)   (5)      (6)      (7)   (8) (9)   (10)         (11)
+
+		   (1) mount ID:  unique identifier of the mount (may be reused after umount)
+		   (2) parent ID:  ID of parent (or of self for the top of the mount tree)
+		   (3) major:minor:  value of st_dev for files on filesystem
+		   (4) root:  root of the mount within the filesystem
+		   (5) mount point:  mount point relative to the process's root
+		   (6) mount options:  per mount options
+		   (7) optional fields:  zero or more fields of the form "tag[:value]"
+		   (8) separator:  marks the end of the optional fields
+		   (9) filesystem type:  name of filesystem of the form "type[.subtype]"
+		   (10) mount source:  filesystem specific information or "none"
+		   (11) super options:  per super block options
+
+		   In other words, we have:
+		    * 6 mandatory fields	(1)..(6)
+		    * 0 or more optional fields	(7)
+		    * a separator field		(8)
+		    * 3 mandatory fields	(9)..(11)
+		*/
+
+		text := s.Text()
+		fields := strings.Split(text, " ")
+		numFields := len(fields)
+		if numFields < 10 {
+			// should be at least 10 fields
+			return nil, fmt.Errorf("parsing '%s' failed: not enough fields (%d)", text, numFields)
+		}
+
+		// separator field
+		sepIdx := numFields - 4
+		// In Linux <= 3.9 mounting a cifs with spaces in a share
+		// name (like "//srv/My Docs") _may_ end up having a space
+		// in the last field of mountinfo (like "unc=//serv/My Docs").
+		// Since kernel 3.10-rc1, cifs option "unc=" is ignored,
+		// so spaces should not appear.
+		//
+		// Check for a separator, and work around the spaces bug
+		for fields[sepIdx] != "-" {
+			sepIdx--
+			if sepIdx == 5 {
+				return nil, fmt.Errorf("parsing '%s' failed: missing - separator", text)
+			}
+		}
+
+		p := &Info{}
+
+		p.Mountpoint, err = unescape(fields[4])
+		if err != nil {
+			return nil, fmt.Errorf("parsing '%s' failed: mount point: %w", fields[4], err)
+		}
+		p.FSType, err = unescape(fields[sepIdx+1])
+		if err != nil {
+			return nil, fmt.Errorf("parsing '%s' failed: fstype: %w", fields[sepIdx+1], err)
+		}
+		p.Source, err = unescape(fields[sepIdx+2])
+		if err != nil {
+			return nil, fmt.Errorf("parsing '%s' failed: source: %w", fields[sepIdx+2], err)
+		}
+		p.VFSOptions = fields[sepIdx+3]
+
+		// ignore any numbers parsing errors, as there should not be any
+		p.ID, _ = strconv.Atoi(fields[0])
+		p.Parent, _ = strconv.Atoi(fields[1])
+		mm := strings.SplitN(fields[2], ":", 3)
+		if len(mm) != 2 {
+			return nil, fmt.Errorf("parsing '%s' failed: unexpected major:minor pair %s", text, mm)
+		}
+		p.Major, _ = strconv.Atoi(mm[0])
+		p.Minor, _ = strconv.Atoi(mm[1])
+
+		p.Root, err = unescape(fields[3])
+		if err != nil {
+			return nil, fmt.Errorf("parsing '%s' failed: root: %w", fields[3], err)
+		}
+
+		p.Options = fields[5]
+
+		// zero or more optional fields
+		p.Optional = strings.Join(fields[6:sepIdx], " ")
+
+		// Run the filter after parsing all fields.
+		var skip, stop bool
+		if filter != nil {
+			skip, stop = filter(p)
+			if skip {
+				continue
+			}
+		}
+
+		out = append(out, p)
+		if stop {
+			break
+		}
+	}
+	if err := s.Err(); err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func parseMountTable(filter FilterFunc) ([]*Info, error) {
+	f, err := os.Open("/proc/self/mountinfo")
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	return GetMountsFromReader(f, filter)
+}
+
+// PidMountInfo retrieves the list of mounts from a given process' mount
+// namespace. Unless there is a need to get mounts from a mount namespace
+// different from that of a calling process, use GetMounts.
+//
+// This function is Linux-specific.
+//
+// Deprecated: this will be removed before v1; use GetMountsFromReader with
+// opened /proc/<pid>/mountinfo as an argument instead.
+func PidMountInfo(pid int) ([]*Info, error) {
+	f, err := os.Open(fmt.Sprintf("/proc/%d/mountinfo", pid))
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	return GetMountsFromReader(f, nil)
+}
+
+// A few specific characters in mountinfo path entries (root and mountpoint)
+// are escaped using a backslash followed by a character's ascii code in octal.
+//
+//   space              -- as \040
+//   tab (aka \t)       -- as \011
+//   newline (aka \n)   -- as \012
+//   backslash (aka \\) -- as \134
+//
+// This function converts path from mountinfo back, i.e. it unescapes the above sequences.
+func unescape(path string) (string, error) {
+	// try to avoid copying
+	if strings.IndexByte(path, '\\') == -1 {
+		return path, nil
+	}
+
+	// The following code is UTF-8 transparent as it only looks for some
+	// specific characters (backslash and 0..7) with values < utf8.RuneSelf,
+	// and everything else is passed through as is.
+	buf := make([]byte, len(path))
+	bufLen := 0
+	for i := 0; i < len(path); i++ {
+		if path[i] != '\\' {
+			buf[bufLen] = path[i]
+			bufLen++
+			continue
+		}
+		s := path[i:]
+		if len(s) < 4 {
+			// too short
+			return "", fmt.Errorf("bad escape sequence %q: too short", s)
+		}
+		c := s[1]
+		switch c {
+		case '0', '1', '2', '3', '4', '5', '6', '7':
+			v := c - '0'
+			for j := 2; j < 4; j++ { // one digit already; two more
+				if s[j] < '0' || s[j] > '7' {
+					return "", fmt.Errorf("bad escape sequence %q: not a digit", s[:3])
+				}
+				x := s[j] - '0'
+				v = (v << 3) | x
+			}
+			if v > 255 {
+				return "", fmt.Errorf("bad escape sequence %q: out of range" + s[:3])
+			}
+			buf[bufLen] = v
+			bufLen++
+			i += 3
+			continue
+		default:
+			return "", fmt.Errorf("bad escape sequence %q: not a digit" + s[:3])
+
+		}
+	}
+
+	return string(buf[:bufLen]), nil
+}

vendor/github.com/moby/sys/mountinfo/mountinfo_openbsd.go

@@ -0,0 +1,11 @@
+package mountinfo
+
+import "golang.org/x/sys/unix"
+
+func getMountinfo(entry *unix.Statfs_t) *Info {
+	return &Info{
+		Mountpoint: unix.ByteSliceToString(entry.F_mntonname[:]),
+		FSType:     unix.ByteSliceToString(entry.F_fstypename[:]),
+		Source:     unix.ByteSliceToString(entry.F_mntfromname[:]),
+	}
+}

vendor/github.com/moby/sys/mountinfo/mountinfo_unsupported.go

@@ -0,0 +1,19 @@
+//go:build !windows && !linux && !freebsd && !openbsd && !darwin
+// +build !windows,!linux,!freebsd,!openbsd,!darwin
+
+package mountinfo
+
+import (
+	"fmt"
+	"runtime"
+)
+
+var errNotImplemented = fmt.Errorf("not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
+
+func parseMountTable(_ FilterFunc) ([]*Info, error) {
+	return nil, errNotImplemented
+}
+
+func mounted(path string) (bool, error) {
+	return false, errNotImplemented
+}

vendor/github.com/moby/sys/mountinfo/mountinfo_windows.go

@@ -0,0 +1,10 @@
+package mountinfo
+
+func parseMountTable(_ FilterFunc) ([]*Info, error) {
+	// Do NOT return an error!
+	return nil, nil
+}
+
+func mounted(_ string) (bool, error) {
+	return false, nil
+}

vendor/github.com/tonistiigi/fsutil/send.go

@@ -135,7 +135,7 @@ func (s *sender) sendFile(h *sendHandle) error {
 		defer f.Close()
 		buf := bufPool.Get().(*[]byte)
 		defer bufPool.Put(buf)
-		if _, err := io.CopyBuffer(&fileSender{sender: s, id: h.id}, f, *buf); err != nil {
+		if _, err := io.CopyBuffer(&fileSender{sender: s, id: h.id}, struct{ io.Reader }{f}, *buf); err != nil {
 			return err
 		}
 	}

vendor/modules.txt

@@ -150,7 +150,7 @@ github.com/compose-spec/compose-go/types
 # github.com/containerd/console v1.0.3
 ## explicit; go 1.13
 github.com/containerd/console
-# github.com/containerd/containerd v1.6.11
+# github.com/containerd/containerd v1.6.16-0.20230124210447-1709cfe273d9
 ## explicit; go 1.17
 github.com/containerd/containerd/api/services/content/v1
 github.com/containerd/containerd/archive/compression
@@ -194,7 +194,7 @@ github.com/davecgh/go-spew/spew
 ## explicit; go 1.18
 github.com/distribution/distribution/v3/digestset
 github.com/distribution/distribution/v3/reference
-# github.com/docker/cli v23.0.0-beta.1+incompatible
+# github.com/docker/cli v23.0.0-rc.1+incompatible
 ## explicit
 github.com/docker/cli/cli
 github.com/docker/cli/cli-plugins/manager
@@ -219,7 +219,7 @@ github.com/docker/cli/cli/streams
 github.com/docker/cli/cli/trust
 github.com/docker/cli/cli/version
 github.com/docker/cli/opts
-# github.com/docker/cli-docs-tool v0.5.0
+# github.com/docker/cli-docs-tool v0.5.1
 ## explicit; go 1.18
 github.com/docker/cli-docs-tool
 github.com/docker/cli-docs-tool/annotation
@@ -241,7 +241,7 @@ github.com/docker/distribution/registry/client/transport
 github.com/docker/distribution/registry/storage/cache
 github.com/docker/distribution/registry/storage/cache/memory
 github.com/docker/distribution/uuid
-# github.com/docker/docker v23.0.0-beta.1+incompatible
+# github.com/docker/docker v23.0.0-rc.1+incompatible
 ## explicit
 github.com/docker/docker/api
 github.com/docker/docker/api/types
@@ -433,7 +433,7 @@ github.com/mitchellh/go-wordwrap
 # github.com/mitchellh/mapstructure v1.5.0
 ## explicit; go 1.14
 github.com/mitchellh/mapstructure
-# github.com/moby/buildkit v0.11.0-rc1.0.20221213193744-862b22d7e7cf
+# github.com/moby/buildkit v0.11.2
 ## explicit; go 1.18
 github.com/moby/buildkit/api/services/control
 github.com/moby/buildkit/api/types
@@ -448,7 +448,6 @@ github.com/moby/buildkit/client/ociindex
 github.com/moby/buildkit/cmd/buildkitd/config
 github.com/moby/buildkit/exporter/containerimage/exptypes
 github.com/moby/buildkit/exporter/containerimage/image
-github.com/moby/buildkit/frontend/attestations
 github.com/moby/buildkit/frontend/gateway/client
 github.com/moby/buildkit/frontend/gateway/grpcclient
 github.com/moby/buildkit/frontend/gateway/pb
@@ -472,6 +471,7 @@ github.com/moby/buildkit/solver/errdefs
 github.com/moby/buildkit/solver/pb
 github.com/moby/buildkit/solver/result
 github.com/moby/buildkit/source/types
+github.com/moby/buildkit/sourcepolicy/pb
 github.com/moby/buildkit/util/apicaps
 github.com/moby/buildkit/util/apicaps/pb
 github.com/moby/buildkit/util/appcontext
@@ -511,6 +511,9 @@ github.com/moby/patternmatcher
 ## explicit; go 1.13
 github.com/moby/spdystream
 github.com/moby/spdystream/spdy
+# github.com/moby/sys/mountinfo v0.6.2
+## explicit; go 1.16
+github.com/moby/sys/mountinfo
 # github.com/moby/sys/sequential v0.5.0
 ## explicit; go 1.17
 github.com/moby/sys/sequential
@@ -603,7 +606,7 @@ github.com/theupdateframework/notary/tuf/data
 github.com/theupdateframework/notary/tuf/signed
 github.com/theupdateframework/notary/tuf/utils
 github.com/theupdateframework/notary/tuf/validation
-# github.com/tonistiigi/fsutil v0.0.0-20221114235510-0127568185cf
+# github.com/tonistiigi/fsutil v0.0.0-20230105215944-fb433841cbfa
 ## explicit; go 1.18
 github.com/tonistiigi/fsutil
 github.com/tonistiigi/fsutil/types