DockerCLI/cli/command/manifest/util.go

82 lines
2.6 KiB
Go
Raw Normal View History

package manifest
import (
"context"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/manifest/store"
"github.com/docker/cli/cli/manifest/types"
"github.com/docker/distribution/reference"
)
type osArch struct {
os string
arch string
}
// Remove any unsupported os/arch combo
// list of valid os/arch values (see "Optional Environment Variables" section
// of https://golang.org/doc/install/source
// Added linux/s390x as we know System z support already exists
// Keep in sync with _docker_manifest_annotate in contrib/completion/bash/docker
var validOSArches = map[osArch]bool{
{os: "darwin", arch: "386"}: true,
{os: "darwin", arch: "amd64"}: true,
{os: "darwin", arch: "arm"}: true,
{os: "darwin", arch: "arm64"}: true,
{os: "dragonfly", arch: "amd64"}: true,
{os: "freebsd", arch: "386"}: true,
{os: "freebsd", arch: "amd64"}: true,
{os: "freebsd", arch: "arm"}: true,
{os: "linux", arch: "386"}: true,
{os: "linux", arch: "amd64"}: true,
{os: "linux", arch: "arm"}: true,
{os: "linux", arch: "arm64"}: true,
{os: "linux", arch: "ppc64le"}: true,
{os: "linux", arch: "mips64"}: true,
{os: "linux", arch: "mips64le"}: true,
{os: "linux", arch: "s390x"}: true,
{os: "netbsd", arch: "386"}: true,
{os: "netbsd", arch: "amd64"}: true,
{os: "netbsd", arch: "arm"}: true,
{os: "openbsd", arch: "386"}: true,
{os: "openbsd", arch: "amd64"}: true,
{os: "openbsd", arch: "arm"}: true,
{os: "plan9", arch: "386"}: true,
{os: "plan9", arch: "amd64"}: true,
{os: "solaris", arch: "amd64"}: true,
{os: "windows", arch: "386"}: true,
{os: "windows", arch: "amd64"}: true,
}
func isValidOSArch(os string, arch string) bool {
// check for existence of this combo
_, ok := validOSArches[osArch{os, arch}]
return ok
}
func normalizeReference(ref string) (reference.Named, error) {
namedRef, err := reference.ParseNormalizedNamed(ref)
if err != nil {
return nil, err
}
if _, isDigested := namedRef.(reference.Canonical); !isDigested {
return reference.TagNameOnly(namedRef), nil
}
return namedRef, nil
}
// getManifest from the local store, and fallback to the remote registry if it
// doesn't exist locally
func getManifest(ctx context.Context, dockerCli command.Cli, listRef, namedRef reference.Named, insecure bool) (types.ImageManifest, error) {
data, err := dockerCli.ManifestStore().Get(listRef, namedRef)
switch {
case store.IsNotFound(err):
return dockerCli.RegistryClient(insecure).GetManifest(ctx, namedRef)
case err != nil:
return types.ImageManifest{}, err
default:
return data, nil
}
}