package main import ( "fmt" "os/exec" "strings" "github.com/go-check/check" ) func (s *DockerSuite) TestRmiWithContainerFails(c *check.C) { testRequires(c, DaemonIsLinux) errSubstr := "is using it" // create a container out, _, err := dockerCmdWithError("run", "-d", "busybox", "true") if err != nil { c.Fatalf("failed to create a container: %s, %v", out, err) } cleanedContainerID := strings.TrimSpace(out) // try to delete the image out, _, err = dockerCmdWithError("rmi", "busybox") if err == nil { c.Fatalf("Container %q is using image, should not be able to rmi: %q", cleanedContainerID, out) } if !strings.Contains(out, errSubstr) { c.Fatalf("Container %q is using image, error message should contain %q: %v", cleanedContainerID, errSubstr, out) } // make sure it didn't delete the busybox name images, _ := dockerCmd(c, "images") if !strings.Contains(images, "busybox") { c.Fatalf("The name 'busybox' should not have been removed from images: %q", images) } } func (s *DockerSuite) TestRmiTag(c *check.C) { testRequires(c, DaemonIsLinux) 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") if strings.Count(imagesAfter, "\n") != strings.Count(imagesBefore, "\n")+3 { c.Fatalf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter) } } dockerCmd(c, "rmi", "utest/docker:tag2") { imagesAfter, _ := dockerCmd(c, "images", "-a") if strings.Count(imagesAfter, "\n") != strings.Count(imagesBefore, "\n")+2 { c.Fatalf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter) } } dockerCmd(c, "rmi", "utest:5000/docker:tag3") { imagesAfter, _ := dockerCmd(c, "images", "-a") if strings.Count(imagesAfter, "\n") != strings.Count(imagesBefore, "\n")+1 { c.Fatalf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter) } } dockerCmd(c, "rmi", "utest:tag1") { imagesAfter, _ := dockerCmd(c, "images", "-a") if strings.Count(imagesAfter, "\n") != strings.Count(imagesBefore, "\n")+0 { c.Fatalf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter) } } } func (s *DockerSuite) TestRmiImgIDMultipleTag(c *check.C) { testRequires(c, DaemonIsLinux) out, _, err := dockerCmdWithError("run", "-d", "busybox", "/bin/sh", "-c", "mkdir '/busybox-one'") if err != nil { c.Fatalf("failed to create a container:%s, %v", out, err) } containerID := strings.TrimSpace(out) out, _, err = dockerCmdWithError("commit", containerID, "busybox-one") if err != nil { c.Fatalf("failed to commit a new busybox-one:%s, %v", out, err) } 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") if strings.Count(imagesAfter, "\n") != strings.Count(imagesBefore, "\n")+2 { c.Fatalf("tag busybox to create 2 more images with same imageID; docker images shows: %q\n", imagesAfter) } imgID, err := inspectField("busybox-one:tag1", "Id") c.Assert(err, check.IsNil) // run a container with the image out, _, err = dockerCmdWithError("run", "-d", "busybox-one", "top") if err != nil { c.Fatalf("failed to create a container:%s, %v", out, err) } 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", imgID[:12], containerID[:12]) if err == nil || !strings.Contains(out, expected) { c.Fatalf("rmi tagged in multiple repos should have failed without force: %s, %v, expected: %s", out, err, expected) } dockerCmd(c, "stop", containerID) dockerCmd(c, "rmi", "-f", imgID) imagesAfter, _ = dockerCmd(c, "images", "-a") if strings.Contains(imagesAfter, imgID[:12]) { c.Fatalf("rmi -f %s failed, image still exists: %q\n\n", imgID, imagesAfter) } } func (s *DockerSuite) TestRmiImgIDForce(c *check.C) { testRequires(c, DaemonIsLinux) out, _, err := dockerCmdWithError("run", "-d", "busybox", "/bin/sh", "-c", "mkdir '/busybox-test'") if err != nil { c.Fatalf("failed to create a container:%s, %v", out, err) } containerID := strings.TrimSpace(out) out, _, err = dockerCmdWithError("commit", containerID, "busybox-test") if err != nil { c.Fatalf("failed to commit a new busybox-test:%s, %v", out, err) } 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") if strings.Count(imagesAfter, "\n") != strings.Count(imagesBefore, "\n")+4 { c.Fatalf("tag busybox to create 4 more images with same imageID; docker images shows: %q\n", imagesAfter) } } imgID, err := inspectField("busybox-test", "Id") c.Assert(err, check.IsNil) // first checkout without force it fails out, _, err = dockerCmdWithError("rmi", imgID) if err == nil || !strings.Contains(out, "(must be forced) - image is referenced in one or more repositories") { c.Fatalf("rmi tagged in multiple repos should have failed without force:%s, %v", out, err) } dockerCmd(c, "rmi", "-f", imgID) { imagesAfter, _ := dockerCmd(c, "images", "-a") if strings.Contains(imagesAfter, imgID[:12]) { c.Fatalf("rmi -f %s failed, image still exists: %q\n\n", imgID, imagesAfter) } } } // See https://github.com/docker/docker/issues/14116 func (s *DockerSuite) TestRmiImageIDForceWithRunningContainersAndMultipleTags(c *check.C) { testRequires(c, DaemonIsLinux) dockerfile := "FROM busybox\nRUN echo test 14116\n" imgID, err := buildImage("test-14116", dockerfile, false) c.Assert(err, check.IsNil) newTag := "newtag" dockerCmd(c, "tag", imgID, newTag) dockerCmd(c, "run", "-d", imgID, "top") out, _, err := dockerCmdWithError("rmi", "-f", imgID) if err == nil || !strings.Contains(out, "(cannot be forced) - image is being used by running container") { c.Log(out) c.Fatalf("rmi -f should not delete image with running containers") } } func (s *DockerSuite) TestRmiTagWithExistingContainers(c *check.C) { testRequires(c, DaemonIsLinux) container := "test-delete-tag" newtag := "busybox:newtag" bb := "busybox:latest" if out, _, err := dockerCmdWithError("tag", bb, newtag); err != nil { c.Fatalf("Could not tag busybox: %v: %s", err, out) } if out, _, err := dockerCmdWithError("run", "--name", container, bb, "/bin/true"); err != nil { c.Fatalf("Could not run busybox: %v: %s", err, out) } out, _, err := dockerCmdWithError("rmi", newtag) if err != nil { c.Fatalf("Could not remove tag %s: %v: %s", newtag, err, out) } if d := strings.Count(out, "Untagged: "); d != 1 { c.Fatalf("Expected 1 untagged entry got %d: %q", d, out) } } func (s *DockerSuite) TestRmiForceWithExistingContainers(c *check.C) { testRequires(c, DaemonIsLinux) image := "busybox-clone" cmd := exec.Command(dockerBinary, "build", "--no-cache", "-t", image, "-") cmd.Stdin = strings.NewReader(`FROM busybox MAINTAINER foo`) if out, _, err := runCommandWithOutput(cmd); err != nil { c.Fatalf("Could not build %s: %s, %v", image, out, err) } if out, _, err := dockerCmdWithError("run", "--name", "test-force-rmi", image, "/bin/true"); err != nil { c.Fatalf("Could not run container: %s, %v", out, err) } if out, _, err := dockerCmdWithError("rmi", "-f", image); err != nil { c.Fatalf("Could not remove image %s: %s, %v", image, out, err) } } func (s *DockerSuite) TestRmiWithMultipleRepositories(c *check.C) { testRequires(c, DaemonIsLinux) newRepo := "127.0.0.1:5000/busybox" oldRepo := "busybox" newTag := "busybox:test" out, _, err := dockerCmdWithError("tag", oldRepo, newRepo) if err != nil { c.Fatalf("Could not tag busybox: %v: %s", err, out) } out, _, err = dockerCmdWithError("run", "--name", "test", oldRepo, "touch", "/home/abcd") if err != nil { c.Fatalf("failed to run container: %v, output: %s", err, out) } out, _, err = dockerCmdWithError("commit", "test", newTag) if err != nil { c.Fatalf("failed to commit container: %v, output: %s", err, out) } out, _, err = dockerCmdWithError("rmi", newTag) if err != nil { c.Fatalf("failed to remove image: %v, output: %s", err, out) } if !strings.Contains(out, "Untagged: "+newTag) { c.Fatalf("Could not remove image %s: %s, %v", newTag, out, err) } } func (s *DockerSuite) TestRmiBlank(c *check.C) { testRequires(c, DaemonIsLinux) // try to delete a blank image name out, _, err := dockerCmdWithError("rmi", "") if err == nil { c.Fatal("Should have failed to delete '' image") } if strings.Contains(out, "no such id") { c.Fatalf("Wrong error message generated: %s", out) } if !strings.Contains(out, "image name cannot be blank") { c.Fatalf("Expected error message not generated: %s", out) } out, _, err = dockerCmdWithError("rmi", " ") if err == nil { c.Fatal("Should have failed to delete '' image") } if !strings.Contains(out, "no such id") { c.Fatalf("Expected error message not generated: %s", out) } } func (s *DockerSuite) TestRmiContainerImageNotFound(c *check.C) { testRequires(c, DaemonIsLinux) // 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, check.IsNil) imageIds[i] = id } // Create a long-running container. dockerCmd(c, "run", "-d", imageNames[0], "top") // 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]) if err == nil || !strings.Contains(out, "image is being used by running container") { c.Log(out) c.Fatal("The image of the running container should not be removed.") } } // #13422 func (s *DockerSuite) TestRmiUntagHistoryLayer(c *check.C) { testRequires(c, DaemonIsLinux) 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, check.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) if d := strings.Count(out, "Untagged: "); d != 1 { c.Log(out) c.Fatalf("Expected 1 untagged entry got %d: %q", d, 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) if err == nil || !strings.Contains(out, cid[:12]) || !strings.Contains(out, "(must force)") { c.Log(out) c.Fatalf("%q should not be untagged without the -f flag", newTag) } // Add the -f flag and test again. out, _ = dockerCmd(c, "rmi", "-f", newTag) if !strings.Contains(out, fmt.Sprintf("Untagged: %s:latest", newTag)) { c.Log(out) c.Fatalf("%q should be allowed to untag with the -f flag", newTag) } }