DockerCLI/cli/command/manifest/annotate.go

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package manifest
import (
"fmt"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/manifest/store"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
type annotateOptions struct {
target string // the target manifest list name (also transaction ID)
image string // the manifest to annotate within the list
variant string // an architecture variant
os string
arch string
osFeatures []string
osVersion string
}
// NewAnnotateCommand creates a new `docker manifest annotate` command
func newAnnotateCommand(dockerCli command.Cli) *cobra.Command {
var opts annotateOptions
cmd := &cobra.Command{
Use: "annotate [OPTIONS] MANIFEST_LIST MANIFEST",
Short: "Add additional information to a local image manifest",
Args: cli.ExactArgs(2),
RunE: func(cmd *cobra.Command, args []string) error {
opts.target = args[0]
opts.image = args[1]
return runManifestAnnotate(dockerCli, opts)
},
}
flags := cmd.Flags()
flags.StringVar(&opts.os, "os", "", "Set operating system")
flags.StringVar(&opts.arch, "arch", "", "Set architecture")
flags.StringVar(&opts.osVersion, "os-version", "", "Set operating system version")
flags.StringSliceVar(&opts.osFeatures, "os-features", []string{}, "Set operating system feature")
flags.StringVar(&opts.variant, "variant", "", "Set architecture variant")
return cmd
}
func runManifestAnnotate(dockerCli command.Cli, opts annotateOptions) error {
targetRef, err := normalizeReference(opts.target)
if err != nil {
return errors.Wrapf(err, "annotate: error parsing name for manifest list %s", opts.target)
}
imgRef, err := normalizeReference(opts.image)
if err != nil {
return errors.Wrapf(err, "annotate: error parsing name for manifest %s", opts.image)
}
manifestStore := dockerCli.ManifestStore()
imageManifest, err := manifestStore.Get(targetRef, imgRef)
switch {
case store.IsNotFound(err):
return fmt.Errorf("manifest for image %s does not exist in %s", opts.image, opts.target)
case err != nil:
return err
}
// Update the mf
if imageManifest.Descriptor.Platform == nil {
imageManifest.Descriptor.Platform = new(ocispec.Platform)
}
if opts.os != "" {
imageManifest.Descriptor.Platform.OS = opts.os
}
if opts.arch != "" {
imageManifest.Descriptor.Platform.Architecture = opts.arch
}
for _, osFeature := range opts.osFeatures {
imageManifest.Descriptor.Platform.OSFeatures = appendIfUnique(imageManifest.Descriptor.Platform.OSFeatures, osFeature)
}
if opts.variant != "" {
imageManifest.Descriptor.Platform.Variant = opts.variant
}
if opts.osVersion != "" {
imageManifest.Descriptor.Platform.OSVersion = opts.osVersion
}
if !isValidOSArch(imageManifest.Descriptor.Platform.OS, imageManifest.Descriptor.Platform.Architecture) {
return errors.Errorf("manifest entry for image has unsupported os/arch combination: %s/%s", opts.os, opts.arch)
}
return manifestStore.Save(targetRef, imgRef, imageManifest)
}
func appendIfUnique(list []string, str string) []string {
for _, s := range list {
if s == str {
return list
}
}
return append(list, str)
}