diff --git a/daemon/image_delete.go b/daemon/image_delete.go index 5de9f55859..d4a2436e55 100644 --- a/daemon/image_delete.go +++ b/daemon/image_delete.go @@ -90,8 +90,34 @@ func (daemon *Daemon) ImageDelete(imageRef string, force, prune bool) ([]types.I daemon.LogImageEvent(imgID.String(), imgID.String(), "untag") records = append(records, untaggedRecord) - // If has remaining references then untag finishes the remove - if len(repoRefs) > 1 { + repoRefs = daemon.referenceStore.References(imgID) + + // If this is a tag reference and all the remaining references + // to this image are digest references, delete the remaining + // references so that they don't prevent removal of the image. + if _, isCanonical := parsedRef.(reference.Canonical); !isCanonical { + foundTagRef := false + for _, repoRef := range repoRefs { + if _, repoRefIsCanonical := repoRef.(reference.Canonical); !repoRefIsCanonical { + foundTagRef = true + break + } + } + if !foundTagRef { + for _, repoRef := range repoRefs { + if _, err := daemon.removeImageRef(repoRef); err != nil { + return records, err + } + + untaggedRecord := types.ImageDelete{Untagged: repoRef.String()} + records = append(records, untaggedRecord) + } + repoRefs = []reference.Named{} + } + } + + // If it has remaining references then the untag finished the remove + if len(repoRefs) > 0 { return records, nil } diff --git a/docs/reference/commandline/rmi.md b/docs/reference/commandline/rmi.md index 69e8ef892f..022a415928 100644 --- a/docs/reference/commandline/rmi.md +++ b/docs/reference/commandline/rmi.md @@ -19,8 +19,9 @@ parent = "smn_cli" --no-prune Do not delete untagged parents You can remove an image using its short or long ID, its tag, or its digest. If -an image has one or more tag or digest reference, you must remove all of them -before the image is removed. +an image has one or more tag referencing it, you must remove all of them before +the image is removed. Digest references are removed automatically when an image +is removed by tag. $ docker images REPOSITORY TAG IMAGE ID CREATED SIZE diff --git a/integration-cli/docker_cli_by_digest_test.go b/integration-cli/docker_cli_by_digest_test.go index 7c043a1ce8..9cc0073c6c 100644 --- a/integration-cli/docker_cli_by_digest_test.go +++ b/integration-cli/docker_cli_by_digest_test.go @@ -395,6 +395,35 @@ func (s *DockerRegistrySuite) TestDeleteImageByIDOnlyPulledByDigest(c *check.C) dockerCmd(c, "rmi", imageID) } +func (s *DockerRegistrySuite) TestDeleteImageWithDigestAndTag(c *check.C) { + pushDigest, err := setupImage(c) + c.Assert(err, checker.IsNil, check.Commentf("error setting up image")) + + // pull from the registry using the @ reference + imageReference := fmt.Sprintf("%s@%s", repoName, pushDigest) + dockerCmd(c, "pull", imageReference) + + imageID, err := inspectField(imageReference, "Id") + c.Assert(err, checker.IsNil, check.Commentf("error inspecting image id")) + + repoTag := repoName + ":sometag" + repoTag2 := repoName + ":othertag" + dockerCmd(c, "tag", imageReference, repoTag) + dockerCmd(c, "tag", imageReference, repoTag2) + + dockerCmd(c, "rmi", repoTag2) + + // rmi should have deleted only repoTag2, because there's another tag + _, err = inspectField(repoTag, "Id") + c.Assert(err, checker.IsNil, check.Commentf("repoTag should not have been removed")) + + dockerCmd(c, "rmi", repoTag) + + // rmi should have deleted the tag, the digest reference, and the image itself + _, err = inspectField(imageID, "Id") + c.Assert(err, checker.NotNil, check.Commentf("image should have been deleted")) +} + // TestPullFailsWithAlteredManifest tests that a `docker pull` fails when // we have modified a manifest blob and its digest cannot be verified. // This is the schema2 version of the test. diff --git a/integration-cli/docker_cli_pull_trusted_test.go b/integration-cli/docker_cli_pull_trusted_test.go index 024108110f..7bcfd5fa74 100644 --- a/integration-cli/docker_cli_pull_trusted_test.go +++ b/integration-cli/docker_cli_pull_trusted_test.go @@ -4,6 +4,7 @@ import ( "fmt" "io/ioutil" "os/exec" + "strings" "time" "github.com/docker/docker/pkg/integration/checker" @@ -200,3 +201,55 @@ func (s *DockerTrustSuite) TestTrustedOfflinePull(c *check.C) { c.Assert(err, check.IsNil, check.Commentf(out)) c.Assert(string(out), checker.Contains, "Tagging", check.Commentf(out)) } + +func (s *DockerTrustSuite) TestTrustedPullDelete(c *check.C) { + repoName := fmt.Sprintf("%v/dockercli/%s:latest", privateRegistryURL, "trusted-pull-delete") + // tag the image and upload it to the private registry + _, err := buildImage(repoName, ` + FROM busybox + CMD echo trustedpulldelete + `, true) + + pushCmd := exec.Command(dockerBinary, "push", repoName) + s.trustedCmd(pushCmd) + out, _, err := runCommandWithOutput(pushCmd) + if err != nil { + c.Fatalf("Error running trusted push: %s\n%s", err, out) + } + if !strings.Contains(string(out), "Signing and pushing trust metadata") { + c.Fatalf("Missing expected output on trusted push:\n%s", out) + } + + if out, status := dockerCmd(c, "rmi", repoName); status != 0 { + c.Fatalf("Error removing image %q\n%s", repoName, out) + } + + // Try pull + pullCmd := exec.Command(dockerBinary, "pull", repoName) + s.trustedCmd(pullCmd) + out, _, err = runCommandWithOutput(pullCmd) + + c.Assert(err, check.IsNil, check.Commentf(out)) + + matches := digestRegex.FindStringSubmatch(out) + c.Assert(matches, checker.HasLen, 2, check.Commentf("unable to parse digest from pull output: %s", out)) + pullDigest := matches[1] + + imageID, err := inspectField(repoName, "Id") + c.Assert(err, checker.IsNil, check.Commentf("error inspecting image id")) + + imageByDigest := repoName + "@" + pullDigest + byDigestID, err := inspectField(imageByDigest, "Id") + c.Assert(err, checker.IsNil, check.Commentf("error inspecting image id")) + + c.Assert(byDigestID, checker.Equals, imageID) + + // rmi of tag should also remove the digest reference + dockerCmd(c, "rmi", repoName) + + _, err = inspectField(imageByDigest, "Id") + c.Assert(err, checker.NotNil, check.Commentf("digest reference should have been removed")) + + _, err = inspectField(imageID, "Id") + c.Assert(err, checker.NotNil, check.Commentf("image should have been deleted")) +}