func (cli *DockerCli) tagTrusted(trustedRef reference.Canonical, ref reference.NamedTagged) error { fmt.Fprintf(cli.out, "Tagging %s as %s\n", trustedRef.String(), ref.String()) options := types.ImageTagOptions{ ImageID: trustedRef.String(), RepositoryName: trustedRef.Name(), Tag: ref.Tag(), Force: true, } return cli.client.ImageTag(options) }