package main import ( "fmt" "os/exec" "strings" "time" "github.com/docker/docker/pkg/integration/checker" "github.com/docker/docker/pkg/stringid" "github.com/go-check/check" ) func (s *DockerSuite) TestRmiWithContainerFails(c *check.C) { errSubstr := "is using it" // create a container out, _ := dockerCmd(c, "run", "-d", "busybox", "true") cleanedContainerID := strings.TrimSpace(out) // try to delete the image out, _, err := dockerCmdWithError("rmi", "busybox") // Container is using image, should not be able to rmi c.Assert(err, checker.NotNil) // Container is using image, error message should contain errSubstr c.Assert(out, checker.Contains, errSubstr, check.Commentf("Container: %q", cleanedContainerID)) // make sure it didn't delete the busybox name images, _ := dockerCmd(c, "images") // The name 'busybox' should not have been removed from images c.Assert(images, checker.Contains, "busybox") } func (s *DockerSuite) TestRmiTag(c *check.C) { imagesBefore, _ := dockerCmd(c, "images", "-a") dockerCmd(c, "tag", "busybox", "utest:tag1") dockerCmd(c, "tag", "busybox", "utest/docker:tag2") dockerCmd(c, "tag", "busybox", "utest:5000/docker:tag3") { imagesAfter, _ := dockerCmd(c, "images", "-a") c.Assert(strings.Count(imagesAfter, "\n"), checker.Equals, strings.Count(imagesBefore, "\n")+3, check.Commentf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter)) } dockerCmd(c, "rmi", "utest/docker:tag2") { imagesAfter, _ := dockerCmd(c, "images", "-a") c.Assert(strings.Count(imagesAfter, "\n"), checker.Equals, strings.Count(imagesBefore, "\n")+2, check.Commentf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter)) } dockerCmd(c, "rmi", "utest:5000/docker:tag3") { imagesAfter, _ := dockerCmd(c, "images", "-a") c.Assert(strings.Count(imagesAfter, "\n"), checker.Equals, strings.Count(imagesBefore, "\n")+1, check.Commentf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter)) } dockerCmd(c, "rmi", "utest:tag1") { imagesAfter, _ := dockerCmd(c, "images", "-a") c.Assert(strings.Count(imagesAfter, "\n"), checker.Equals, strings.Count(imagesBefore, "\n"), check.Commentf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter)) } } func (s *DockerSuite) TestRmiImgIDMultipleTag(c *check.C) { out, _ := dockerCmd(c, "run", "-d", "busybox", "/bin/sh", "-c", "mkdir '/busybox-one'") containerID := strings.TrimSpace(out) // Wait for it to exit as cannot commit a running container on Windows, and // it will take a few seconds to exit if daemonPlatform == "windows" { err := waitExited(containerID, 60*time.Second) c.Assert(err, check.IsNil) } dockerCmd(c, "commit", containerID, "busybox-one") imagesBefore, _ := dockerCmd(c, "images", "-a") dockerCmd(c, "tag", "busybox-one", "busybox-one:tag1") dockerCmd(c, "tag", "busybox-one", "busybox-one:tag2") imagesAfter, _ := dockerCmd(c, "images", "-a") // tag busybox to create 2 more images with same imageID c.Assert(strings.Count(imagesAfter, "\n"), checker.Equals, strings.Count(imagesBefore, "\n")+2, check.Commentf("docker images shows: %q\n", imagesAfter)) imgID := inspectField(c, "busybox-one:tag1", "Id") // run a container with the image out, _ = runSleepingContainerInImage(c, "busybox-one") containerID = strings.TrimSpace(out) // first checkout without force it fails out, _, err := dockerCmdWithError("rmi", imgID) expected := fmt.Sprintf("conflict: unable to delete %s (cannot be forced) - image is being used by running container %s", stringid.TruncateID(imgID), stringid.TruncateID(containerID)) // rmi tagged in multiple repos should have failed without force c.Assert(err, checker.NotNil) c.Assert(out, checker.Contains, expected) dockerCmd(c, "stop", containerID) dockerCmd(c, "rmi", "-f", imgID) imagesAfter, _ = dockerCmd(c, "images", "-a") // rmi -f failed, image still exists c.Assert(imagesAfter, checker.Not(checker.Contains), imgID[:12], check.Commentf("ImageID:%q; ImagesAfter: %q", imgID, imagesAfter)) } func (s *DockerSuite) TestRmiImgIDForce(c *check.C) { out, _ := dockerCmd(c, "run", "-d", "busybox", "/bin/sh", "-c", "mkdir '/busybox-test'") containerID := strings.TrimSpace(out) // Wait for it to exit as cannot commit a running container on Windows, and // it will take a few seconds to exit if daemonPlatform == "windows" { err := waitExited(containerID, 60*time.Second) c.Assert(err, check.IsNil) } dockerCmd(c, "commit", containerID, "busybox-test") imagesBefore, _ := dockerCmd(c, "images", "-a") dockerCmd(c, "tag", "busybox-test", "utest:tag1") dockerCmd(c, "tag", "busybox-test", "utest:tag2") dockerCmd(c, "tag", "busybox-test", "utest/docker:tag3") dockerCmd(c, "tag", "busybox-test", "utest:5000/docker:tag4") { imagesAfter, _ := dockerCmd(c, "images", "-a") c.Assert(strings.Count(imagesAfter, "\n"), checker.Equals, strings.Count(imagesBefore, "\n")+4, check.Commentf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter)) } imgID := inspectField(c, "busybox-test", "Id") // first checkout without force it fails out, _, err := dockerCmdWithError("rmi", imgID) // rmi tagged in multiple repos should have failed without force c.Assert(err, checker.NotNil) // rmi tagged in multiple repos should have failed without force c.Assert(out, checker.Contains, "(must be forced) - image is referenced in one or more repositories", check.Commentf("out: %s; err: %v;", out, err)) dockerCmd(c, "rmi", "-f", imgID) { imagesAfter, _ := dockerCmd(c, "images", "-a") // rmi failed, image still exists c.Assert(imagesAfter, checker.Not(checker.Contains), imgID[:12]) } } // See https://github.com/docker/docker/issues/14116 func (s *DockerSuite) TestRmiImageIDForceWithRunningContainersAndMultipleTags(c *check.C) { dockerfile := "FROM busybox\nRUN echo test 14116\n" imgID, err := buildImage("test-14116", dockerfile, false) c.Assert(err, checker.IsNil) newTag := "newtag" dockerCmd(c, "tag", imgID, newTag) runSleepingContainerInImage(c, imgID) out, _, err := dockerCmdWithError("rmi", "-f", imgID) // rmi -f should not delete image with running containers c.Assert(err, checker.NotNil) c.Assert(out, checker.Contains, "(cannot be forced) - image is being used by running container") } func (s *DockerSuite) TestRmiTagWithExistingContainers(c *check.C) { container := "test-delete-tag" newtag := "busybox:newtag" bb := "busybox:latest" dockerCmd(c, "tag", bb, newtag) dockerCmd(c, "run", "--name", container, bb, "/bin/true") out, _ := dockerCmd(c, "rmi", newtag) c.Assert(strings.Count(out, "Untagged: "), checker.Equals, 1) } func (s *DockerSuite) TestRmiForceWithExistingContainers(c *check.C) { image := "busybox-clone" cmd := exec.Command(dockerBinary, "build", "--no-cache", "-t", image, "-") cmd.Stdin = strings.NewReader(`FROM busybox MAINTAINER foo`) out, _, err := runCommandWithOutput(cmd) c.Assert(err, checker.IsNil, check.Commentf("Could not build %s: %s", image, out)) dockerCmd(c, "run", "--name", "test-force-rmi", image, "/bin/true") dockerCmd(c, "rmi", "-f", image) } func (s *DockerSuite) TestRmiWithMultipleRepositories(c *check.C) { newRepo := "127.0.0.1:5000/busybox" oldRepo := "busybox" newTag := "busybox:test" dockerCmd(c, "tag", oldRepo, newRepo) dockerCmd(c, "run", "--name", "test", oldRepo, "touch", "/abcd") dockerCmd(c, "commit", "test", newTag) out, _ := dockerCmd(c, "rmi", newTag) c.Assert(out, checker.Contains, "Untagged: "+newTag) } func (s *DockerSuite) TestRmiForceWithMultipleRepositories(c *check.C) { imageName := "rmiimage" tag1 := imageName + ":tag1" tag2 := imageName + ":tag2" _, err := buildImage(tag1, `FROM busybox MAINTAINER "docker"`, true) if err != nil { c.Fatal(err) } dockerCmd(c, "tag", tag1, tag2) out, _ := dockerCmd(c, "rmi", "-f", tag2) c.Assert(out, checker.Contains, "Untagged: "+tag2) c.Assert(out, checker.Not(checker.Contains), "Untagged: "+tag1) // Check built image still exists images, _ := dockerCmd(c, "images", "-a") c.Assert(images, checker.Contains, imageName, check.Commentf("Built image missing %q; Images: %q", imageName, images)) } func (s *DockerSuite) TestRmiBlank(c *check.C) { // try to delete a blank image name out, _, err := dockerCmdWithError("rmi", "") // Should have failed to delete '' image c.Assert(err, checker.NotNil) // Wrong error message generated c.Assert(out, checker.Not(checker.Contains), "no such id", check.Commentf("out: %s", out)) // Expected error message not generated c.Assert(out, checker.Contains, "image name cannot be blank", check.Commentf("out: %s", out)) out, _, err = dockerCmdWithError("rmi", " ") // Should have failed to delete ' ' image c.Assert(err, checker.NotNil) // Expected error message not generated c.Assert(out, checker.Contains, "image name cannot be blank", check.Commentf("out: %s", out)) } func (s *DockerSuite) TestRmiContainerImageNotFound(c *check.C) { // Build 2 images for testing. imageNames := []string{"test1", "test2"} imageIds := make([]string, 2) for i, name := range imageNames { dockerfile := fmt.Sprintf("FROM busybox\nMAINTAINER %s\nRUN echo %s\n", name, name) id, err := buildImage(name, dockerfile, false) c.Assert(err, checker.IsNil) imageIds[i] = id } // Create a long-running container. runSleepingContainerInImage(c, imageNames[0]) // Create a stopped container, and then force remove its image. dockerCmd(c, "run", imageNames[1], "true") dockerCmd(c, "rmi", "-f", imageIds[1]) // Try to remove the image of the running container and see if it fails as expected. out, _, err := dockerCmdWithError("rmi", "-f", imageIds[0]) // The image of the running container should not be removed. c.Assert(err, checker.NotNil) c.Assert(out, checker.Contains, "image is being used by running container", check.Commentf("out: %s", out)) } // #13422 func (s *DockerSuite) TestRmiUntagHistoryLayer(c *check.C) { image := "tmp1" // Build a image for testing. dockerfile := `FROM busybox MAINTAINER foo RUN echo 0 #layer0 RUN echo 1 #layer1 RUN echo 2 #layer2 ` _, err := buildImage(image, dockerfile, false) c.Assert(err, checker.IsNil) out, _ := dockerCmd(c, "history", "-q", image) ids := strings.Split(out, "\n") idToTag := ids[2] // Tag layer0 to "tmp2". newTag := "tmp2" dockerCmd(c, "tag", idToTag, newTag) // Create a container based on "tmp1". dockerCmd(c, "run", "-d", image, "true") // See if the "tmp2" can be untagged. out, _ = dockerCmd(c, "rmi", newTag) // Expected 1 untagged entry c.Assert(strings.Count(out, "Untagged: "), checker.Equals, 1, check.Commentf("out: %s", out)) // Now let's add the tag again and create a container based on it. dockerCmd(c, "tag", idToTag, newTag) out, _ = dockerCmd(c, "run", "-d", newTag, "true") cid := strings.TrimSpace(out) // At this point we have 2 containers, one based on layer2 and another based on layer0. // Try to untag "tmp2" without the -f flag. out, _, err = dockerCmdWithError("rmi", newTag) // should not be untagged without the -f flag c.Assert(err, checker.NotNil) c.Assert(out, checker.Contains, cid[:12]) c.Assert(out, checker.Contains, "(must force)") // Add the -f flag and test again. out, _ = dockerCmd(c, "rmi", "-f", newTag) // should be allowed to untag with the -f flag c.Assert(out, checker.Contains, fmt.Sprintf("Untagged: %s:latest", newTag)) } func (*DockerSuite) TestRmiParentImageFail(c *check.C) { parent := inspectField(c, "busybox", "Parent") out, _, err := dockerCmdWithError("rmi", parent) c.Assert(err, check.NotNil) if !strings.Contains(out, "image has dependent child images") { c.Fatalf("rmi should have failed because it's a parent image, got %s", out) } } func (s *DockerSuite) TestRmiWithParentInUse(c *check.C) { out, _ := dockerCmd(c, "create", "busybox") cID := strings.TrimSpace(out) out, _ = dockerCmd(c, "commit", cID) imageID := strings.TrimSpace(out) out, _ = dockerCmd(c, "create", imageID) cID = strings.TrimSpace(out) out, _ = dockerCmd(c, "commit", cID) imageID = strings.TrimSpace(out) dockerCmd(c, "rmi", imageID) } // #18873 func (s *DockerSuite) TestRmiByIDHardConflict(c *check.C) { dockerCmd(c, "create", "busybox") imgID := inspectField(c, "busybox:latest", "Id") _, _, err := dockerCmdWithError("rmi", imgID[:12]) c.Assert(err, checker.NotNil) // check that tag was not removed imgID2 := inspectField(c, "busybox:latest", "Id") c.Assert(imgID, checker.Equals, imgID2) }