| package client |
| |
| import ( |
| "net/url" |
| |
| "github.com/docker/distribution/reference" |
| "github.com/pkg/errors" |
| "golang.org/x/net/context" |
| ) |
| |
| // ImageTag tags an image in the docker host |
| func (cli *Client) ImageTag(ctx context.Context, source, target string) error { |
| if _, err := reference.ParseAnyReference(source); err != nil { |
| return errors.Wrapf(err, "Error parsing reference: %q is not a valid repository/tag", source) |
| } |
| |
| ref, err := reference.ParseNormalizedNamed(target) |
| if err != nil { |
| return errors.Wrapf(err, "Error parsing reference: %q is not a valid repository/tag", target) |
| } |
| |
| if _, isCanonical := ref.(reference.Canonical); isCanonical { |
| return errors.New("refusing to create a tag with a digest reference") |
| } |
| |
| ref = reference.TagNameOnly(ref) |
| |
| query := url.Values{} |
| query.Set("repo", reference.FamiliarName(ref)) |
| if tagged, ok := ref.(reference.Tagged); ok { |
| query.Set("tag", tagged.Tag()) |
| } |
| |
| resp, err := cli.post(ctx, "/images/"+source+"/tag", query, nil, nil) |
| ensureReaderClosed(resp) |
| return err |
| } |