vendor: update buildkit to v0.8

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

vendor/github.com/containerd/containerd/defaults/defaults.go

@@ -0,0 +1,32 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   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.
+*/
+
+package defaults
+
+const (
+	// DefaultMaxRecvMsgSize defines the default maximum message size for
+	// receiving protobufs passed over the GRPC API.
+	DefaultMaxRecvMsgSize = 16 << 20
+	// DefaultMaxSendMsgSize defines the default maximum message size for
+	// sending protobufs passed over the GRPC API.
+	DefaultMaxSendMsgSize = 16 << 20
+	// DefaultRuntimeNSLabel defines the namespace label to check for the
+	// default runtime
+	DefaultRuntimeNSLabel = "containerd.io/defaults/runtime"
+	// DefaultSnapshotterNSLabel defines the namespace label to check for the
+	// default snapshotter
+	DefaultSnapshotterNSLabel = "containerd.io/defaults/snapshotter"
+)

vendor/github.com/containerd/containerd/defaults/defaults_unix.go

@@ -0,0 +1,37 @@
+// +build !windows
+
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   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.
+*/
+
+package defaults
+
+const (
+	// DefaultRootDir is the default location used by containerd to store
+	// persistent data
+	DefaultRootDir = "/var/lib/containerd"
+	// DefaultStateDir is the default location used by containerd to store
+	// transient data
+	DefaultStateDir = "/run/containerd"
+	// DefaultAddress is the default unix socket address
+	DefaultAddress = "/run/containerd/containerd.sock"
+	// DefaultDebugAddress is the default unix socket address for pprof data
+	DefaultDebugAddress = "/run/containerd/debug.sock"
+	// DefaultFIFODir is the default location used by client-side cio library
+	// to store FIFOs.
+	DefaultFIFODir = "/run/containerd/fifo"
+	// DefaultRuntime is the default linux runtime
+	DefaultRuntime = "io.containerd.runc.v2"
+)

vendor/github.com/containerd/containerd/defaults/defaults_windows.go

@@ -0,0 +1,45 @@
+// +build windows
+
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   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.
+*/
+
+package defaults
+
+import (
+	"os"
+	"path/filepath"
+)
+
+var (
+	// DefaultRootDir is the default location used by containerd to store
+	// persistent data
+	DefaultRootDir = filepath.Join(os.Getenv("ProgramData"), "containerd", "root")
+	// DefaultStateDir is the default location used by containerd to store
+	// transient data
+	DefaultStateDir = filepath.Join(os.Getenv("ProgramData"), "containerd", "state")
+)
+
+const (
+	// DefaultAddress is the default winpipe address
+	DefaultAddress = `\\.\pipe\containerd-containerd`
+	// DefaultDebugAddress is the default winpipe address for pprof data
+	DefaultDebugAddress = `\\.\pipe\containerd-debug`
+	// DefaultFIFODir is the default location used by client-side cio library
+	// to store FIFOs. Unused on Windows.
+	DefaultFIFODir = ""
+	// DefaultRuntime is the default windows runtime
+	DefaultRuntime = "io.containerd.runhcs.v1"
+)

vendor/github.com/containerd/containerd/defaults/doc.go

@@ -0,0 +1,19 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   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.
+*/
+
+// Package defaults provides several common defaults for interacting with
+// containerd. These can be used on the client-side or server-side.
+package defaults