| package client |
| |
| import ( |
| "errors" |
| "fmt" |
| "net/url" |
| |
| "golang.org/x/net/context" |
| |
| distreference "github.com/docker/distribution/reference" |
| "github.com/docker/docker/api/types/reference" |
| ) |
| |
| // ImageTag tags an image in the docker host |
| func (cli *Client) ImageTag(ctx context.Context, imageID, ref string) error { |
| distributionRef, err := distreference.ParseNamed(ref) |
| if err != nil { |
| return fmt.Errorf("Error parsing reference: %q is not a valid repository/tag", ref) |
| } |
| |
| if _, isCanonical := distributionRef.(distreference.Canonical); isCanonical { |
| return errors.New("refusing to create a tag with a digest reference") |
| } |
| |
| tag := reference.GetTagFromNamedRef(distributionRef) |
| |
| query := url.Values{} |
| query.Set("repo", distributionRef.Name()) |
| query.Set("tag", tag) |
| |
| resp, err := cli.post(ctx, "/images/"+imageID+"/tag", query, nil, nil) |
| ensureReaderClosed(resp) |
| return err |
| } |