Merge pull request #800 from crazy-max/ulimit

build: add ulimit support

build/build.go

@@ -20,6 +20,7 @@ import (
 	"github.com/docker/buildx/util/imagetools"
 	"github.com/docker/buildx/util/progress"
 	clitypes "github.com/docker/cli/cli/config/types"
+	"github.com/docker/cli/opts"
 	"github.com/docker/distribution/reference"
 	"github.com/docker/docker/api/types"
 	dockerclient "github.com/docker/docker/client"
@@ -56,6 +57,7 @@ type Options struct {
 	ImageIDFile string
 	ExtraHosts  []string
 	NetworkMode string
+	Ulimits     *opts.UlimitOpt
 
 	NoCache   bool
 	Target    string
@@ -554,6 +556,14 @@ func toSolveOpt(ctx context.Context, d driver.Driver, multiDriver bool, opt Opti
 	}
 	so.FrontendAttrs["add-hosts"] = extraHosts
 
+	// setup ulimits
+	ulimits, err := toBuildkitUlimits(opt.Ulimits)
+	if err != nil {
+		return nil, nil, err
+	} else if len(ulimits) > 0 {
+		so.FrontendAttrs["ulimit"] = ulimits
+	}
+
 	return &so, releaseF, nil
 }
 

build/utils.go

@@ -7,6 +7,7 @@ import (
 	"os"
 	"strings"
 
+	"github.com/docker/cli/opts"
 	"github.com/pkg/errors"
 )
 
@@ -53,3 +54,15 @@ func toBuildkitExtraHosts(inp []string) (string, error) {
 	}
 	return strings.Join(hosts, ","), nil
 }
+
+// toBuildkitUlimits converts ulimits from docker type=soft:hard format to buildkit's csv format
+func toBuildkitUlimits(inp *opts.UlimitOpt) (string, error) {
+	if inp == nil || len(inp.GetList()) == 0 {
+		return "", nil
+	}
+	ulimits := make([]string, 0, len(inp.GetList()))
+	for _, ulimit := range inp.GetList() {
+		ulimits = append(ulimits, ulimit.String())
+	}
+	return strings.Join(ulimits, ","), nil
+}

commands/build.go

@@ -15,7 +15,9 @@ import (
 	"github.com/docker/buildx/util/tracing"
 	"github.com/docker/cli/cli"
 	"github.com/docker/cli/cli/command"
+	"github.com/docker/cli/opts"
 	"github.com/docker/docker/pkg/ioutils"
+	"github.com/docker/go-units"
 	"github.com/moby/buildkit/client"
 	"github.com/moby/buildkit/session/auth/authprovider"
 	"github.com/moby/buildkit/util/appcontext"
@@ -45,6 +47,7 @@ type buildOptions struct {
 	extraHosts  []string
 	networkMode string
 	quiet       bool
+	ulimits     *opts.UlimitOpt
 
 	// unimplemented
 	squash bool
@@ -53,7 +56,6 @@ type buildOptions struct {
 
 	// hidden
 	// untrusted   bool
-	// ulimits        *opts.UlimitOpt
 	// memory         opts.MemBytes
 	// memorySwap     opts.MemSwapBytes
 	// shmSize        opts.MemBytes
@@ -125,6 +127,7 @@ func runBuild(dockerCli command.Cli, in buildOptions) (err error) {
 		ImageIDFile: in.imageIDFile,
 		ExtraHosts:  in.extraHosts,
 		NetworkMode: in.networkMode,
+		Ulimits:     in.ulimits,
 	}
 
 	platforms, err := platformutil.Parse(in.platforms)
@@ -260,8 +263,15 @@ func buildTargets(ctx context.Context, dockerCli command.Cli, opts map[string]bu
 	return resp[defaultTargetName].ExporterResponse["containerimage.digest"], err
 }
 
+func newBuildOptions() buildOptions {
+	ulimits := make(map[string]*units.Ulimit)
+	return buildOptions{
+		ulimits: opts.NewUlimitOpt(&ulimits),
+	}
+}
+
 func buildCmd(dockerCli command.Cli, rootOpts *rootOptions) *cobra.Command {
-	var options buildOptions
+	options := newBuildOptions()
 
 	cmd := &cobra.Command{
 		Use:     "build [OPTIONS] PATH | URL | -",
@@ -303,6 +313,7 @@ func buildCmd(dockerCli command.Cli, rootOpts *rootOptions) *cobra.Command {
 	flags.StringSliceVar(&options.extraHosts, "add-host", []string{}, "Add a custom host-to-IP mapping (format: `host:ip`)")
 	flags.SetAnnotation("add-host", "docs.external.url", []string{"https://docs.docker.com/engine/reference/commandline/build/#add-entries-to-container-hosts-file---add-host"})
 	flags.StringVar(&options.imageIDFile, "iidfile", "", "Write the image ID to the file")
+	flags.Var(options.ulimits, "ulimit", "Ulimit options")
 
 	// not implemented
 	flags.BoolVar(&options.squash, "squash", false, "Squash newly built layers into a single new layer")
@@ -313,8 +324,6 @@ func buildCmd(dockerCli command.Cli, rootOpts *rootOptions) *cobra.Command {
 	var ignoreSlice []string
 	var ignoreBool bool
 	var ignoreInt int64
-	flags.StringVar(&ignore, "ulimit", "", "Ulimit options")
-	flags.MarkHidden("ulimit")
 	flags.StringSliceVar(&ignoreSlice, "security-opt", []string{}, "Security options")
 	flags.MarkHidden("security-opt")
 	flags.BoolVar(&ignoreBool, "compress", false, "Compress the build context using gzip")

docs/reference/buildx_build.md

@@ -38,6 +38,7 @@ Start a build
 | `--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 stringArray`](https://docs.docker.com/engine/reference/commandline/build/#tag-an-image--t) | Name and optionally a tag (format: `name:tag`) |
 | [`--target string`](https://docs.docker.com/engine/reference/commandline/build/#specifying-target-build-stage---target) | Set the target build stage to build. |
+| [`--ulimit ulimit`](#ulimit) | Ulimit options |
 
 
 <!---MARKER_GEN_END-->
@@ -317,3 +318,18 @@ with `--allow-insecure-entitlement` (see [`create --buildkitd-flags`](buildx_cre
 $ docker buildx create --use --name insecure-builder --buildkitd-flags '--allow-insecure-entitlement security.insecure'
 $ docker buildx build --allow security.insecure .
 ```
+
+### <a name="ulimit"></a> Set ulimits (--ulimit)
+
+`--ulimit` is specified with a soft and hard limit as such:
+`<type>=<soft limit>[:<hard limit>]`, for example:
+
+```console
+$ docker buildx build --ulimit nofile=1024:1024 .
+```
+
+> **Note**
+>
+> If you do not provide a `hard limit`, the `soft limit` is used
+> for both values. If no `ulimits` are set, they are inherited from
+> the default `ulimits` set on the daemon.

go.mod

@@ -17,6 +17,7 @@ require (
 	github.com/docker/distribution v2.7.1+incompatible
 	github.com/docker/docker v20.10.7+incompatible
 	github.com/docker/go v1.5.1-1.0.20160303222718-d30aec9fd63c // indirect
+	github.com/docker/go-units v0.4.0
 	github.com/docker/libtrust v0.0.0-20150526203908-9cbd2a1374f4 // indirect
 	github.com/elazarl/goproxy v0.0.0-20191011121108-aa519ddbe484 // indirect
 	github.com/fvbommel/sortorder v1.0.1 // indirect
@@ -30,7 +31,7 @@ require (
 	github.com/jinzhu/gorm v1.9.2 // indirect
 	github.com/jinzhu/inflection v0.0.0-20180308033659-04140366298a // indirect
 	github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0 // indirect
-	github.com/moby/buildkit v0.9.1-0.20210927192002-23c8affb1ffe
+	github.com/moby/buildkit v0.9.1-0.20211008210008-ba673bbdab4f
 	github.com/opencontainers/go-digest v1.0.0
 	github.com/opencontainers/image-spec v1.0.2-0.20210819154149-5ad6f50d6283
 	github.com/pkg/errors v0.9.1

go.sum

@@ -404,6 +404,7 @@ github.com/dgrijalva/jwt-go v0.0.0-20170104182250-a601269ab70c/go.mod h1:E3ru+11
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
 github.com/dimchansky/utfbom v1.1.0/go.mod h1:rO41eb7gLfo8SF1jd9F8HplJm1Fewwi4mQvIirEdv+8=
+github.com/dimchansky/utfbom v1.1.1/go.mod h1:SxdoEBH5qIqFocHMyGOXVAybYJdr71b1Q/j0mACtrfE=
 github.com/distribution/distribution/v3 v3.0.0-20210316161203-a01c71e2477e h1:n81KvOMrLZa+VWHwST7dun9f0G98X3zREHS1ztYzZKU=
 github.com/distribution/distribution/v3 v3.0.0-20210316161203-a01c71e2477e/go.mod h1:xpWTC2KnJMiDLkoawhsPQcXjvwATEBcbq0xevG2YR9M=
 github.com/dnaeon/go-vcr v1.0.1/go.mod h1:aBB1+wY4s93YsC3HHjMBMrwTj2R9FHDzUr9KyGc8n1E=
@@ -906,8 +907,8 @@ github.com/mitchellh/mapstructure v1.4.1 h1:CpVNEelQCZBooIPDn+AR3NpivK/TIKU8bDxd
 github.com/mitchellh/mapstructure v1.4.1/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
 github.com/mitchellh/osext v0.0.0-20151018003038-5e2d6d41470f/go.mod h1:OkQIRizQZAeMln+1tSwduZz7+Af5oFlKirV/MSYes2A=
 github.com/moby/buildkit v0.8.1/go.mod h1:/kyU1hKy/aYCuP39GZA9MaKioovHku57N6cqlKZIaiQ=
-github.com/moby/buildkit v0.9.1-0.20210927192002-23c8affb1ffe h1:SA9l85GRngGomGpyDmVdziovizKPH8peFyUUtsluh34=
-github.com/moby/buildkit v0.9.1-0.20210927192002-23c8affb1ffe/go.mod h1:BmktjI4PV4waDqQWB19oWso7X4t9VTcak6q7ynntmkQ=
+github.com/moby/buildkit v0.9.1-0.20211008210008-ba673bbdab4f h1:RCFnbn0W1+InqTusV4raeqAyxvRMzuVoyT+8yKOMbWs=
+github.com/moby/buildkit v0.9.1-0.20211008210008-ba673bbdab4f/go.mod h1:be+M6HNNl/Et0cUrFWRwEnXC1OChl1wPxXO5uEg4w6A=
 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/spdystream v0.2.0 h1:cjW1zVyyoiM0T7b6UoySUFqzXMoqRckQtXwGPiBhOM8=
@@ -1203,7 +1204,7 @@ github.com/tommy-muehle/go-mnd v1.3.1-0.20200224220436-e6f9a994e8fa/go.mod h1:dS
 github.com/tonistiigi/fsutil v0.0.0-20201103201449-0834f99b7b85/go.mod h1:a7cilN64dG941IOXfhJhlH0qB92hxJ9A1ewrdUmJ6xo=
 github.com/tonistiigi/fsutil v0.0.0-20210818161904-4442383b5028 h1:uEkkUFMCPtzz1HVOa42u15OHems1ugiRt172tSRTWSk=
 github.com/tonistiigi/fsutil v0.0.0-20210818161904-4442383b5028/go.mod h1:E6osHKls9ix67jofYQ61RQKwlJhqJOZM2hintp+49iI=
-github.com/tonistiigi/go-actions-cache v0.0.0-20210714033416-b93d7f1b2e70/go.mod h1:dNS+PPTqGnSl80x3wEyWWCHeON5xiBGtcM0uD6CgHNU=
+github.com/tonistiigi/go-actions-cache v0.0.0-20211002214948-4d48f2ff622a/go.mod h1:YiIBjH5gP7mao3t0dBrNNBGuKYdeJmcAJjYLXr43k6A=
 github.com/tonistiigi/opentelemetry-go-contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.0.0-20210714055410-d010b05b4939 h1:s6wDMZYNyWt8KvkjhrMpOthFPgI3JB8ipJS+eCV/psg=
 github.com/tonistiigi/opentelemetry-go-contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.0.0-20210714055410-d010b05b4939/go.mod h1:Vm5u/mtkj1OMhtao0v+BGo2LUoLCgHYXvRmj0jWITlE=
 github.com/tonistiigi/opentelemetry-go-contrib/instrumentation/net/http/httptrace/otelhttptrace v0.0.0-20210714055410-d010b05b4939 h1:ZZ1KHKvs97BcRoblbm6RhrDzs/OejFv7miYSIcZI7Ds=

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

@@ -192,6 +192,7 @@ func (e *ExecOp) Marshal(ctx context.Context, c *Constraints) (digest.Digest, []
 		User:     user,
 		Hostname: hostname,
 	}
+
 	extraHosts, err := getExtraHosts(e.base)(ctx, c)
 	if err != nil {
 		return "", nil, nil, nil, err
@@ -204,6 +205,31 @@ func (e *ExecOp) Marshal(ctx context.Context, c *Constraints) (digest.Digest, []
 		meta.ExtraHosts = hosts
 	}
 
+	shmSize, err := getShmSize(e.base)(ctx, c)
+	if err != nil {
+		return "", nil, nil, nil, err
+	}
+	if shmSize != nil {
+		meta.ShmSize = *shmSize
+	}
+
+	ulimits, err := getUlimit(e.base)(ctx, c)
+	if err != nil {
+		return "", nil, nil, nil, err
+	}
+	if len(ulimits) > 0 {
+		addCap(&e.constraints, pb.CapExecMetaUlimit)
+		ul := make([]*pb.Ulimit, len(ulimits))
+		for i, u := range ulimits {
+			ul[i] = &pb.Ulimit{
+				Name: u.Name,
+				Soft: u.Soft,
+				Hard: u.Hard,
+			}
+		}
+		meta.Ulimit = ul
+	}
+
 	network, err := getNetwork(e.base)(ctx, c)
 	if err != nil {
 		return "", nil, nil, nil, err
@@ -498,6 +524,18 @@ func AddExtraHost(host string, ip net.IP) RunOption {
 	})
 }
 
+func WithShmSize(kb int64) RunOption {
+	return runOptionFunc(func(ei *ExecInfo) {
+		ei.State = ei.State.WithShmSize(kb)
+	})
+}
+
+func AddUlimit(name UlimitName, soft int64, hard int64) RunOption {
+	return runOptionFunc(func(ei *ExecInfo) {
+		ei.State = ei.State.AddUlimit(name, soft, hard)
+	})
+}
+
 func With(so ...StateOption) RunOption {
 	return runOptionFunc(func(ei *ExecInfo) {
 		ei.State = ei.State.With(so...)
@@ -667,3 +705,23 @@ const (
 	SecurityModeInsecure = pb.SecurityMode_INSECURE
 	SecurityModeSandbox  = pb.SecurityMode_SANDBOX
 )
+
+type UlimitName string
+
+const (
+	UlimitCore       UlimitName = "core"
+	UlimitCPU        UlimitName = "cpu"
+	UlimitData       UlimitName = "data"
+	UlimitFsize      UlimitName = "fsize"
+	UlimitLocks      UlimitName = "locks"
+	UlimitMemlock    UlimitName = "memlock"
+	UlimitMsgqueue   UlimitName = "msgqueue"
+	UlimitNice       UlimitName = "nice"
+	UlimitNofile     UlimitName = "nofile"
+	UlimitNproc      UlimitName = "nproc"
+	UlimitRss        UlimitName = "rss"
+	UlimitRtprio     UlimitName = "rtprio"
+	UlimitRttime     UlimitName = "rttime"
+	UlimitSigpending UlimitName = "sigpending"
+	UlimitStack      UlimitName = "stack"
+)

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

@@ -18,12 +18,15 @@ var (
 	keyArgs      = contextKeyT("llb.exec.args")
 	keyDir       = contextKeyT("llb.exec.dir")
 	keyEnv       = contextKeyT("llb.exec.env")
-	keyUser      = contextKeyT("llb.exec.user")
-	keyHostname  = contextKeyT("llb.exec.hostname")
 	keyExtraHost = contextKeyT("llb.exec.extrahost")
-	keyPlatform  = contextKeyT("llb.platform")
-	keyNetwork   = contextKeyT("llb.network")
-	keySecurity  = contextKeyT("llb.security")
+	keyHostname  = contextKeyT("llb.exec.hostname")
+	keyShmSize   = contextKeyT("llb.exec.shmsize")
+	keyUlimit    = contextKeyT("llb.exec.ulimit")
+	keyUser      = contextKeyT("llb.exec.user")
+
+	keyPlatform = contextKeyT("llb.platform")
+	keyNetwork  = contextKeyT("llb.network")
+	keySecurity = contextKeyT("llb.security")
 )
 
 func AddEnvf(key, value string, v ...interface{}) StateOption {
@@ -232,6 +235,55 @@ type HostIP struct {
 	IP   net.IP
 }
 
+func shmSize(kb int64) StateOption {
+	return func(s State) State {
+		return s.WithValue(keyShmSize, kb)
+	}
+}
+
+func getShmSize(s State) func(context.Context, *Constraints) (*int64, error) {
+	return func(ctx context.Context, c *Constraints) (*int64, error) {
+		v, err := s.getValue(keyShmSize)(ctx, c)
+		if err != nil {
+			return nil, err
+		}
+		if v != nil {
+			kb := v.(int64)
+			return &kb, nil
+		}
+		return nil, nil
+	}
+}
+
+func ulimit(name UlimitName, soft int64, hard int64) StateOption {
+	return func(s State) State {
+		return s.withValue(keyUlimit, func(ctx context.Context, c *Constraints) (interface{}, error) {
+			v, err := getUlimit(s)(ctx, c)
+			if err != nil {
+				return nil, err
+			}
+			return append(v, pb.Ulimit{
+				Name: string(name),
+				Soft: soft,
+				Hard: hard,
+			}), nil
+		})
+	}
+}
+
+func getUlimit(s State) func(context.Context, *Constraints) ([]pb.Ulimit, error) {
+	return func(ctx context.Context, c *Constraints) ([]pb.Ulimit, error) {
+		v, err := s.getValue(keyUlimit)(ctx, c)
+		if err != nil {
+			return nil, err
+		}
+		if v != nil {
+			return v.([]pb.Ulimit), nil
+		}
+		return nil, nil
+	}
+}
+
 func Network(v pb.NetMode) StateOption {
 	return func(s State) State {
 		return s.WithValue(keyNetwork, v)

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

@@ -397,6 +397,14 @@ func (s State) AddExtraHost(host string, ip net.IP) State {
 	return extraHost(host, ip)(s)
 }
 
+func (s State) WithShmSize(kb int64) State {
+	return shmSize(kb)(s)
+}
+
+func (s State) AddUlimit(name UlimitName, soft int64, hard int64) State {
+	return ulimit(name, soft, hard)(s)
+}
+
 func (s State) isFileOpCopyInput() {}
 
 type output struct {

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

@@ -35,22 +35,22 @@ const (
 
 	CapBuildOpLLBFileName apicaps.CapID = "source.buildop.llbfilename"
 
-	CapExecMetaBase                  apicaps.CapID = "exec.meta.base"
-	CapExecMetaProxy                 apicaps.CapID = "exec.meta.proxyenv"
-	CapExecMetaNetwork               apicaps.CapID = "exec.meta.network"
-	CapExecMetaSecurity              apicaps.CapID = "exec.meta.security"
-	CapExecMetaSetsDefaultPath       apicaps.CapID = "exec.meta.setsdefaultpath"
-	CapExecMountBind                 apicaps.CapID = "exec.mount.bind"
-	CapExecMountBindReadWriteNoOuput apicaps.CapID = "exec.mount.bind.readwrite-nooutput"
-	CapExecMountCache                apicaps.CapID = "exec.mount.cache"
-	CapExecMountCacheSharing         apicaps.CapID = "exec.mount.cache.sharing"
-	CapExecMountSelector             apicaps.CapID = "exec.mount.selector"
-	CapExecMountTmpfs                apicaps.CapID = "exec.mount.tmpfs"
-	CapExecMountSecret               apicaps.CapID = "exec.mount.secret"
-	CapExecMountSSH                  apicaps.CapID = "exec.mount.ssh"
-	CapExecCgroupsMounted            apicaps.CapID = "exec.cgroup"
-
+	CapExecMetaBase                      apicaps.CapID = "exec.meta.base"
+	CapExecMetaNetwork                   apicaps.CapID = "exec.meta.network"
+	CapExecMetaProxy                     apicaps.CapID = "exec.meta.proxyenv"
+	CapExecMetaSecurity                  apicaps.CapID = "exec.meta.security"
 	CapExecMetaSecurityDeviceWhitelistV1 apicaps.CapID = "exec.meta.security.devices.v1"
+	CapExecMetaSetsDefaultPath           apicaps.CapID = "exec.meta.setsdefaultpath"
+	CapExecMetaUlimit                    apicaps.CapID = "exec.meta.ulimit"
+	CapExecMountBind                     apicaps.CapID = "exec.mount.bind"
+	CapExecMountBindReadWriteNoOuput     apicaps.CapID = "exec.mount.bind.readwrite-nooutput"
+	CapExecMountCache                    apicaps.CapID = "exec.mount.cache"
+	CapExecMountCacheSharing             apicaps.CapID = "exec.mount.cache.sharing"
+	CapExecMountSelector                 apicaps.CapID = "exec.mount.selector"
+	CapExecMountTmpfs                    apicaps.CapID = "exec.mount.tmpfs"
+	CapExecMountSecret                   apicaps.CapID = "exec.mount.secret"
+	CapExecMountSSH                      apicaps.CapID = "exec.mount.ssh"
+	CapExecCgroupsMounted                apicaps.CapID = "exec.cgroup"
 
 	CapFileBase                       apicaps.CapID = "file.base"
 	CapFileRmWildcard                 apicaps.CapID = "file.rm.wildcard"
@@ -236,6 +236,12 @@ func init() {
 		Status:  apicaps.CapStatusExperimental,
 	})
 
+	Caps.Init(apicaps.Cap{
+		ID:      CapExecMetaUlimit,
+		Enabled: true,
+		Status:  apicaps.CapStatusExperimental,
+	})
+
 	Caps.Init(apicaps.Cap{
 		ID:      CapExecMountBind,
 		Enabled: true,

vendor/github.com/moby/buildkit/solver/pb/ops.proto

@@ -58,6 +58,19 @@ message Meta {
 	ProxyEnv proxy_env = 5;
 	repeated HostIP extraHosts = 6;
 	string hostname = 7;
+	int64 shmSize = 8;
+	repeated Ulimit ulimit = 9;
+}
+
+message HostIP {
+	string Host = 1;
+	string IP = 2;
+}
+
+message Ulimit {
+	string Name = 1;
+	int64 Soft = 2;
+	int64 Hard = 3;
 }
 
 enum NetMode {
@@ -243,11 +256,6 @@ message Definition {
 	Source Source = 3;
 }
 
-message HostIP {
-	string Host = 1;
-	string IP = 2;
-}
-
 message FileOp {
 	repeated FileAction actions = 2;
 }

vendor/modules.txt

@@ -168,6 +168,7 @@ github.com/docker/go-connections/tlsconfig
 # github.com/docker/go-metrics v0.0.1
 github.com/docker/go-metrics
 # github.com/docker/go-units v0.4.0
+## explicit
 github.com/docker/go-units
 # github.com/docker/libtrust v0.0.0-20150526203908-9cbd2a1374f4
 ## explicit
@@ -281,7 +282,7 @@ github.com/miekg/pkcs11
 github.com/mitchellh/go-wordwrap
 # github.com/mitchellh/mapstructure v1.4.1
 github.com/mitchellh/mapstructure
-# github.com/moby/buildkit v0.9.1-0.20210927192002-23c8affb1ffe
+# github.com/moby/buildkit v0.9.1-0.20211008210008-ba673bbdab4f
 ## explicit
 github.com/moby/buildkit/api/services/control
 github.com/moby/buildkit/api/types