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docker build: check experimental --platform on pre-run 

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit a88a1bea23)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2020-04-07 23:24:20 +02:00
parent 25f04876d1
commit c44c18e088
No known key found for this signature in database
GPG Key ID: 76698F39D527CE8C
2 changed files with 29 additions and 9 deletions
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27
cli/command/image/build.go
View File

@ -115,6 +115,25 @@ func NewBuildCommand(dockerCli command.Cli) *cobra.Command {
},
}
// Wrap the global pre-run to handle non-BuildKit use of the --platform flag.
//
// We're doing it here so that we're only contacting the daemon when actually
// running the command, and not during initialization.
// TODO remove this hack once we no longer support the experimental use of --platform
rootFn := cmd.Root().PersistentPreRunE
cmd.PersistentPreRunE = func(cmd *cobra.Command, args []string) error {
if ok, _ := command.BuildKitEnabled(dockerCli.ServerInfo()); !ok {
f := cmd.Flag("platform")
delete(f.Annotations, "buildkit")
f.Annotations["version"] = []string{"1.32"}
f.Annotations["experimental"] = nil
}
if rootFn != nil {
return rootFn(cmd, args)
}
return nil
}
flags := cmd.Flags()
flags.VarP(&options.tags, "tag", "t", "Name and optionally a tag in the 'name:tag' format")
@ -163,14 +182,8 @@ func NewBuildCommand(dockerCli command.Cli) *cobra.Command {
command.AddTrustVerificationFlags(flags, &options.untrusted, dockerCli.ContentTrustEnabled())
flags.StringVar(&options.platform, "platform", os.Getenv("DOCKER_DEFAULT_PLATFORM"), "Set platform if server is multi-platform capable")
// Platform is not experimental when BuildKit is used
buildkitEnabled, err := command.BuildKitEnabled(dockerCli.ServerInfo())
if err == nil && buildkitEnabled {
flags.SetAnnotation("platform", "version", []string{"1.38"})
} else {
flags.SetAnnotation("platform", "version", []string{"1.32"})
flags.SetAnnotation("platform", "experimental", nil)
}
flags.SetAnnotation("platform", "buildkit", nil)
flags.BoolVar(&options.squash, "squash", false, "Squash newly built layers into a single new layer")
flags.SetAnnotation("squash", "experimental", nil)

9
cli/command/image/build_test.go
View File

@ -20,11 +20,13 @@ import (
"github.com/google/go-cmp/cmp"
"github.com/moby/buildkit/session/secrets/secretsprovider"
"gotest.tools/v3/assert"
"gotest.tools/v3/env"
"gotest.tools/v3/fs"
"gotest.tools/v3/skip"
)
func TestRunBuildDockerfileFromStdinWithCompress(t *testing.T) {
defer env.Patch(t, "DOCKER_BUILDKIT", "0")()
buffer := new(bytes.Buffer)
fakeBuild := newFakeBuild()
fakeImageBuild := func(ctx context.Context, context io.Reader, options types.ImageBuildOptions) (types.ImageBuildResponse, error) {
@ -60,6 +62,7 @@ func TestRunBuildDockerfileFromStdinWithCompress(t *testing.T) {
}
func TestRunBuildResetsUidAndGidInContext(t *testing.T) {
defer env.Patch(t, "DOCKER_BUILDKIT", "0")()
skip.If(t, os.Getuid() != 0, "root is required to chown files")
fakeBuild := newFakeBuild()
cli := test.NewFakeCli(&fakeClient{imageBuildFunc: fakeBuild.build})
@ -90,6 +93,7 @@ func TestRunBuildResetsUidAndGidInContext(t *testing.T) {
}
func TestRunBuildDockerfileOutsideContext(t *testing.T) {
defer env.Patch(t, "DOCKER_BUILDKIT", "0")()
dir := fs.NewDir(t, t.Name(),
fs.WithFile("data", "data file"))
defer dir.Remove()
@ -122,7 +126,8 @@ COPY data /data
// TODO: test "context selection" logic directly when runBuild is refactored
// to support testing (ex: docker/cli#294)
func TestRunBuildFromGitHubSpecialCase(t *testing.T) {
cmd := NewBuildCommand(test.NewFakeCli(nil))
defer env.Patch(t, "DOCKER_BUILDKIT", "0")()
cmd := NewBuildCommand(test.NewFakeCli(&fakeClient{}))
// Clone a small repo that exists so git doesn't prompt for credentials
cmd.SetArgs([]string{"github.com/docker/for-win"})
cmd.SetOutput(ioutil.Discard)
@ -135,6 +140,7 @@ func TestRunBuildFromGitHubSpecialCase(t *testing.T) {
// starting with `github.com` takes precedence over the `github.com` special
// case.
func TestRunBuildFromLocalGitHubDir(t *testing.T) {
defer env.Patch(t, "DOCKER_BUILDKIT", "0")()
tmpDir, err := ioutil.TempDir("", "docker-build-from-local-dir-")
assert.NilError(t, err)
defer os.RemoveAll(tmpDir)
@ -154,6 +160,7 @@ func TestRunBuildFromLocalGitHubDir(t *testing.T) {
}
func TestRunBuildWithSymlinkedContext(t *testing.T) {
defer env.Patch(t, "DOCKER_BUILDKIT", "0")()
dockerfile := `
FROM alpine:3.6
RUN echo hello world