package main import ( "fmt" "os/exec" "strings" "github.com/go-check/check" ) func (s *DockerSuite) TestRmiWithContainerFails(c *check.C) { errSubstr := "is using it" // create a container runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "true") out, _, err := runCommandWithOutput(runCmd) if err != nil { c.Fatalf("failed to create a container: %s, %v", out, err) } cleanedContainerID := strings.TrimSpace(out) // try to delete the image runCmd = exec.Command(dockerBinary, "rmi", "busybox") out, _, err = runCommandWithOutput(runCmd) 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) { 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) { runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "/bin/sh", "-c", "mkdir '/busybox-one'") out, _, err := runCommandWithOutput(runCmd) if err != nil { c.Fatalf("failed to create a container:%s, %v", out, err) } containerID := strings.TrimSpace(out) runCmd = exec.Command(dockerBinary, "commit", containerID, "busybox-one") out, _, err = runCommandWithOutput(runCmd) 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 = runCommandWithOutput(exec.Command(dockerBinary, "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 = runCommandWithOutput(exec.Command(dockerBinary, "rmi", imgID)) expected := fmt.Sprintf("Conflict, cannot delete %s because the running container %s is using it, stop it and use -f to force", 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) { runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "/bin/sh", "-c", "mkdir '/busybox-test'") out, _, err := runCommandWithOutput(runCmd) if err != nil { c.Fatalf("failed to create a container:%s, %v", out, err) } containerID := strings.TrimSpace(out) runCmd = exec.Command(dockerBinary, "commit", containerID, "busybox-test") out, _, err = runCommandWithOutput(runCmd) 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 runCmd = exec.Command(dockerBinary, "rmi", imgID) out, _, err = runCommandWithOutput(runCmd) if err == nil || !strings.Contains(out, fmt.Sprintf("Conflict, cannot delete image %s because it is tagged in multiple repositories, use -f to force", imgID)) { 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) } } } func (s *DockerSuite) TestRmiTagWithExistingContainers(c *check.C) { container := "test-delete-tag" newtag := "busybox:newtag" bb := "busybox:latest" if out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "tag", bb, newtag)); err != nil { c.Fatalf("Could not tag busybox: %v: %s", err, out) } if out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "run", "--name", container, bb, "/bin/true")); err != nil { c.Fatalf("Could not run busybox: %v: %s", err, out) } out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "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) { 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 := runCommandWithOutput(exec.Command(dockerBinary, "run", "--name", "test-force-rmi", image, "/bin/true")); err != nil { c.Fatalf("Could not run container: %s, %v", out, err) } out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "rmi", "-f", image)) if err != nil { c.Fatalf("Could not remove image %s: %s, %v", image, out, err) } } func (s *DockerSuite) TestRmiWithMultipleRepositories(c *check.C) { newRepo := "127.0.0.1:5000/busybox" oldRepo := "busybox" newTag := "busybox:test" cmd := exec.Command(dockerBinary, "tag", oldRepo, newRepo) out, _, err := runCommandWithOutput(cmd) if err != nil { c.Fatalf("Could not tag busybox: %v: %s", err, out) } cmd = exec.Command(dockerBinary, "run", "--name", "test", oldRepo, "touch", "/home/abcd") out, _, err = runCommandWithOutput(cmd) if err != nil { c.Fatalf("failed to run container: %v, output: %s", err, out) } cmd = exec.Command(dockerBinary, "commit", "test", newTag) out, _, err = runCommandWithOutput(cmd) if err != nil { c.Fatalf("failed to commit container: %v, output: %s", err, out) } cmd = exec.Command(dockerBinary, "rmi", newTag) out, _, err = runCommandWithOutput(cmd) 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) { // try to delete a blank image name runCmd := exec.Command(dockerBinary, "rmi", "") out, _, err := runCommandWithOutput(runCmd) if err == nil { c.Fatal("Should have failed to delete '' image") } if strings.Contains(out, "No such image") { c.Fatalf("Wrong error message generated: %s", out) } }