package docker import ( "bufio" "fmt" "github.com/dotcloud/docker/runconfig" "github.com/dotcloud/docker/utils" "io" "io/ioutil" "os" "path" "regexp" "sort" "strings" "testing" "time" ) func TestIDFormat(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container1, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"/bin/sh", "-c", "echo hello world"}, }, "", ) if err != nil { t.Fatal(err) } match, err := regexp.Match("^[0-9a-f]{64}$", []byte(container1.ID)) if err != nil { t.Fatal(err) } if !match { t.Fatalf("Invalid container ID: %s", container1.ID) } } func TestMultipleAttachRestart(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, _ := mkContainer( runtime, []string{"_", "/bin/sh", "-c", "i=1; while [ $i -le 5 ]; do i=`expr $i + 1`; echo hello; done"}, t, ) defer runtime.Destroy(container) // Simulate 3 client attaching to the container and stop/restart stdout1, err := container.StdoutPipe() if err != nil { t.Fatal(err) } stdout2, err := container.StdoutPipe() if err != nil { t.Fatal(err) } stdout3, err := container.StdoutPipe() if err != nil { t.Fatal(err) } if err := container.Start(); err != nil { t.Fatal(err) } l1, err := bufio.NewReader(stdout1).ReadString('\n') if err != nil { t.Fatal(err) } if strings.Trim(l1, " \r\n") != "hello" { t.Fatalf("Unexpected output. Expected [%s], received [%s]", "hello", l1) } l2, err := bufio.NewReader(stdout2).ReadString('\n') if err != nil { t.Fatal(err) } if strings.Trim(l2, " \r\n") != "hello" { t.Fatalf("Unexpected output. Expected [%s], received [%s]", "hello", l2) } l3, err := bufio.NewReader(stdout3).ReadString('\n') if err != nil { t.Fatal(err) } if strings.Trim(l3, " \r\n") != "hello" { t.Fatalf("Unexpected output. Expected [%s], received [%s]", "hello", l3) } if err := container.Stop(10); err != nil { t.Fatal(err) } stdout1, err = container.StdoutPipe() if err != nil { t.Fatal(err) } stdout2, err = container.StdoutPipe() if err != nil { t.Fatal(err) } stdout3, err = container.StdoutPipe() if err != nil { t.Fatal(err) } if err := container.Start(); err != nil { t.Fatal(err) } setTimeout(t, "Timeout reading from the process", 3*time.Second, func() { l1, err = bufio.NewReader(stdout1).ReadString('\n') if err != nil { t.Fatal(err) } if strings.Trim(l1, " \r\n") != "hello" { t.Fatalf("Unexpected output. Expected [%s], received [%s]", "hello", l1) } l2, err = bufio.NewReader(stdout2).ReadString('\n') if err != nil { t.Fatal(err) } if strings.Trim(l2, " \r\n") != "hello" { t.Fatalf("Unexpected output. Expected [%s], received [%s]", "hello", l2) } l3, err = bufio.NewReader(stdout3).ReadString('\n') if err != nil { t.Fatal(err) } if strings.Trim(l3, " \r\n") != "hello" { t.Fatalf("Unexpected output. Expected [%s], received [%s]", "hello", l3) } }) container.Wait() } func TestDiff(t *testing.T) { eng := NewTestEngine(t) runtime := mkRuntimeFromEngine(eng, t) defer nuke(runtime) // Create a container and remove a file container1, _, _ := mkContainer(runtime, []string{"_", "/bin/rm", "/etc/passwd"}, t) defer runtime.Destroy(container1) // The changelog should be empty and not fail before run. See #1705 c, err := container1.Changes() if err != nil { t.Fatal(err) } if len(c) != 0 { t.Fatalf("Changelog should be empty before run") } if err := container1.Run(); err != nil { t.Fatal(err) } // Check the changelog c, err = container1.Changes() if err != nil { t.Fatal(err) } success := false for _, elem := range c { if elem.Path == "/etc/passwd" && elem.Kind == 2 { success = true } } if !success { t.Fatalf("/etc/passwd as been removed but is not present in the diff") } // Commit the container img, err := runtime.Commit(container1, "", "", "unit test commited image - diff", "", nil) if err != nil { t.Fatal(err) } // Create a new container from the commited image container2, _, _ := mkContainer(runtime, []string{img.ID, "cat", "/etc/passwd"}, t) defer runtime.Destroy(container2) if err := container2.Run(); err != nil { t.Fatal(err) } // Check the changelog c, err = container2.Changes() if err != nil { t.Fatal(err) } for _, elem := range c { if elem.Path == "/etc/passwd" { t.Fatalf("/etc/passwd should not be present in the diff after commit.") } } // Create a new container container3, _, _ := mkContainer(runtime, []string{"_", "rm", "/bin/httpd"}, t) defer runtime.Destroy(container3) if err := container3.Run(); err != nil { t.Fatal(err) } // Check the changelog c, err = container3.Changes() if err != nil { t.Fatal(err) } success = false for _, elem := range c { if elem.Path == "/bin/httpd" && elem.Kind == 2 { success = true } } if !success { t.Fatalf("/bin/httpd should be present in the diff after commit.") } } func TestCommitAutoRun(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container1, _, _ := mkContainer(runtime, []string{"_", "/bin/sh", "-c", "echo hello > /world"}, t) defer runtime.Destroy(container1) if container1.State.IsRunning() { t.Errorf("Container shouldn't be running") } if err := container1.Run(); err != nil { t.Fatal(err) } if container1.State.IsRunning() { t.Errorf("Container shouldn't be running") } img, err := runtime.Commit(container1, "", "", "unit test commited image", "", &runconfig.Config{Cmd: []string{"cat", "/world"}}) if err != nil { t.Error(err) } // FIXME: Make a TestCommit that stops here and check docker.root/layers/img.id/world container2, _, _ := mkContainer(runtime, []string{img.ID}, t) defer runtime.Destroy(container2) stdout, err := container2.StdoutPipe() if err != nil { t.Fatal(err) } stderr, err := container2.StderrPipe() if err != nil { t.Fatal(err) } if err := container2.Start(); err != nil { t.Fatal(err) } container2.Wait() output, err := ioutil.ReadAll(stdout) if err != nil { t.Fatal(err) } output2, err := ioutil.ReadAll(stderr) if err != nil { t.Fatal(err) } if err := stdout.Close(); err != nil { t.Fatal(err) } if err := stderr.Close(); err != nil { t.Fatal(err) } if string(output) != "hello\n" { t.Fatalf("Unexpected output. Expected %s, received: %s (err: %s)", "hello\n", output, output2) } } func TestCommitRun(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container1, _, _ := mkContainer(runtime, []string{"_", "/bin/sh", "-c", "echo hello > /world"}, t) defer runtime.Destroy(container1) if container1.State.IsRunning() { t.Errorf("Container shouldn't be running") } if err := container1.Run(); err != nil { t.Fatal(err) } if container1.State.IsRunning() { t.Errorf("Container shouldn't be running") } img, err := runtime.Commit(container1, "", "", "unit test commited image", "", nil) if err != nil { t.Error(err) } // FIXME: Make a TestCommit that stops here and check docker.root/layers/img.id/world container2, _, _ := mkContainer(runtime, []string{img.ID, "cat", "/world"}, t) defer runtime.Destroy(container2) stdout, err := container2.StdoutPipe() if err != nil { t.Fatal(err) } stderr, err := container2.StderrPipe() if err != nil { t.Fatal(err) } if err := container2.Start(); err != nil { t.Fatal(err) } container2.Wait() output, err := ioutil.ReadAll(stdout) if err != nil { t.Fatal(err) } output2, err := ioutil.ReadAll(stderr) if err != nil { t.Fatal(err) } if err := stdout.Close(); err != nil { t.Fatal(err) } if err := stderr.Close(); err != nil { t.Fatal(err) } if string(output) != "hello\n" { t.Fatalf("Unexpected output. Expected %s, received: %s (err: %s)", "hello\n", output, output2) } } func TestStart(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, _ := mkContainer(runtime, []string{"-i", "_", "/bin/cat"}, t) defer runtime.Destroy(container) cStdin, err := container.StdinPipe() if err != nil { t.Fatal(err) } if err := container.Start(); err != nil { t.Fatal(err) } // Give some time to the process to start container.WaitTimeout(500 * time.Millisecond) if !container.State.IsRunning() { t.Errorf("Container should be running") } if err := container.Start(); err == nil { t.Fatalf("A running container should be able to be started") } // Try to avoid the timeout in destroy. Best effort, don't check error cStdin.Close() container.WaitTimeout(2 * time.Second) } func TestCpuShares(t *testing.T) { _, err1 := os.Stat("/sys/fs/cgroup/cpuacct,cpu") _, err2 := os.Stat("/sys/fs/cgroup/cpu,cpuacct") if err1 == nil || err2 == nil { t.Skip("Fixme. Setting cpu cgroup shares doesn't work in dind on a Fedora host. The lxc utils are confused by the cpu,cpuacct mount.") } runtime := mkRuntime(t) defer nuke(runtime) container, _, _ := mkContainer(runtime, []string{"-m", "33554432", "-c", "1000", "-i", "_", "/bin/cat"}, t) defer runtime.Destroy(container) cStdin, err := container.StdinPipe() if err != nil { t.Fatal(err) } if err := container.Start(); err != nil { t.Fatal(err) } // Give some time to the process to start container.WaitTimeout(500 * time.Millisecond) if !container.State.IsRunning() { t.Errorf("Container should be running") } if err := container.Start(); err == nil { t.Fatalf("A running container should be able to be started") } // Try to avoid the timeout in destroy. Best effort, don't check error cStdin.Close() container.WaitTimeout(2 * time.Second) } func TestRun(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, _ := mkContainer(runtime, []string{"_", "ls", "-al"}, t) defer runtime.Destroy(container) if container.State.IsRunning() { t.Errorf("Container shouldn't be running") } if err := container.Run(); err != nil { t.Fatal(err) } if container.State.IsRunning() { t.Errorf("Container shouldn't be running") } } func TestOutput(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"echo", "-n", "foobar"}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) output, err := container.Output() if err != nil { t.Fatal(err) } if string(output) != "foobar" { t.Fatalf("%s != %s", string(output), "foobar") } } func TestKillDifferentUser(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"cat"}, OpenStdin: true, User: "daemon", }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) // FIXME @shykes: this seems redundant, but is very old, I'm leaving it in case // there is a side effect I'm not seeing. // defer container.stdin.Close() if container.State.IsRunning() { t.Errorf("Container shouldn't be running") } if err := container.Start(); err != nil { t.Fatal(err) } setTimeout(t, "Waiting for the container to be started timed out", 2*time.Second, func() { for !container.State.IsRunning() { time.Sleep(10 * time.Millisecond) } }) setTimeout(t, "read/write assertion timed out", 2*time.Second, func() { out, _ := container.StdoutPipe() in, _ := container.StdinPipe() if err := assertPipe("hello\n", "hello", out, in, 150); err != nil { t.Fatal(err) } }) if err := container.Kill(); err != nil { t.Fatal(err) } if container.State.IsRunning() { t.Errorf("Container shouldn't be running") } container.Wait() if container.State.IsRunning() { t.Errorf("Container shouldn't be running") } // Try stopping twice if err := container.Kill(); err != nil { t.Fatal(err) } } // Test that creating a container with a volume doesn't crash. Regression test for #995. func TestCreateVolume(t *testing.T) { eng := NewTestEngine(t) runtime := mkRuntimeFromEngine(eng, t) defer nuke(runtime) config, hc, _, err := runconfig.Parse([]string{"-v", "/var/lib/data", unitTestImageID, "echo", "hello", "world"}, nil) if err != nil { t.Fatal(err) } jobCreate := eng.Job("create") if err := jobCreate.ImportEnv(config); err != nil { t.Fatal(err) } var id string jobCreate.Stdout.AddString(&id) if err := jobCreate.Run(); err != nil { t.Fatal(err) } jobStart := eng.Job("start", id) if err := jobStart.ImportEnv(hc); err != nil { t.Fatal(err) } if err := jobStart.Run(); err != nil { t.Fatal(err) } // FIXME: this hack can be removed once Wait is a job c := runtime.Get(id) if c == nil { t.Fatalf("Couldn't retrieve container %s from runtime", id) } c.WaitTimeout(500 * time.Millisecond) c.Wait() } func TestKill(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"sleep", "2"}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) if container.State.IsRunning() { t.Errorf("Container shouldn't be running") } if err := container.Start(); err != nil { t.Fatal(err) } // Give some time to lxc to spawn the process container.WaitTimeout(500 * time.Millisecond) if !container.State.IsRunning() { t.Errorf("Container should be running") } if err := container.Kill(); err != nil { t.Fatal(err) } if container.State.IsRunning() { t.Errorf("Container shouldn't be running") } container.Wait() if container.State.IsRunning() { t.Errorf("Container shouldn't be running") } // Try stopping twice if err := container.Kill(); err != nil { t.Fatal(err) } } func TestExitCode(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) trueContainer, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"/bin/true"}, }, "") if err != nil { t.Fatal(err) } defer runtime.Destroy(trueContainer) if err := trueContainer.Run(); err != nil { t.Fatal(err) } if code := trueContainer.State.GetExitCode(); code != 0 { t.Fatalf("Unexpected exit code %d (expected 0)", code) } falseContainer, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"/bin/false"}, }, "") if err != nil { t.Fatal(err) } defer runtime.Destroy(falseContainer) if err := falseContainer.Run(); err != nil { t.Fatal(err) } if code := falseContainer.State.GetExitCode(); code != 1 { t.Fatalf("Unexpected exit code %d (expected 1)", code) } } func TestRestart(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"echo", "-n", "foobar"}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) output, err := container.Output() if err != nil { t.Fatal(err) } if string(output) != "foobar" { t.Error(string(output)) } // Run the container again and check the output output, err = container.Output() if err != nil { t.Fatal(err) } if string(output) != "foobar" { t.Error(string(output)) } } func TestRestartStdin(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"cat"}, OpenStdin: true, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) stdin, err := container.StdinPipe() if err != nil { t.Fatal(err) } stdout, err := container.StdoutPipe() if err != nil { t.Fatal(err) } if err := container.Start(); err != nil { t.Fatal(err) } if _, err := io.WriteString(stdin, "hello world"); err != nil { t.Fatal(err) } if err := stdin.Close(); err != nil { t.Fatal(err) } container.Wait() output, err := ioutil.ReadAll(stdout) if err != nil { t.Fatal(err) } if err := stdout.Close(); err != nil { t.Fatal(err) } if string(output) != "hello world" { t.Fatalf("Unexpected output. Expected %s, received: %s", "hello world", string(output)) } // Restart and try again stdin, err = container.StdinPipe() if err != nil { t.Fatal(err) } stdout, err = container.StdoutPipe() if err != nil { t.Fatal(err) } if err := container.Start(); err != nil { t.Fatal(err) } if _, err := io.WriteString(stdin, "hello world #2"); err != nil { t.Fatal(err) } if err := stdin.Close(); err != nil { t.Fatal(err) } container.Wait() output, err = ioutil.ReadAll(stdout) if err != nil { t.Fatal(err) } if err := stdout.Close(); err != nil { t.Fatal(err) } if string(output) != "hello world #2" { t.Fatalf("Unexpected output. Expected %s, received: %s", "hello world #2", string(output)) } } func TestUser(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) // Default user must be root container, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"id"}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) output, err := container.Output() if err != nil { t.Fatal(err) } if !strings.Contains(string(output), "uid=0(root) gid=0(root)") { t.Error(string(output)) } // Set a username container, _, err = runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"id"}, User: "root", }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) output, err = container.Output() if code := container.State.GetExitCode(); err != nil || code != 0 { t.Fatal(err) } if !strings.Contains(string(output), "uid=0(root) gid=0(root)") { t.Error(string(output)) } // Set a UID container, _, err = runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"id"}, User: "0", }, "", ) if code := container.State.GetExitCode(); err != nil || code != 0 { t.Fatal(err) } defer runtime.Destroy(container) output, err = container.Output() if code := container.State.GetExitCode(); err != nil || code != 0 { t.Fatal(err) } if !strings.Contains(string(output), "uid=0(root) gid=0(root)") { t.Error(string(output)) } // Set a different user by uid container, _, err = runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"id"}, User: "1", }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) output, err = container.Output() if err != nil { t.Fatal(err) } else if code := container.State.GetExitCode(); code != 0 { t.Fatalf("Container exit code is invalid: %d\nOutput:\n%s\n", code, output) } if !strings.Contains(string(output), "uid=1(daemon) gid=1(daemon)") { t.Error(string(output)) } // Set a different user by username container, _, err = runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"id"}, User: "daemon", }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) output, err = container.Output() if code := container.State.GetExitCode(); err != nil || code != 0 { t.Fatal(err) } if !strings.Contains(string(output), "uid=1(daemon) gid=1(daemon)") { t.Error(string(output)) } // Test an wrong username container, _, err = runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"id"}, User: "unknownuser", }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) output, err = container.Output() if container.State.GetExitCode() == 0 { t.Fatal("Starting container with wrong uid should fail but it passed.") } } func TestMultipleContainers(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container1, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"sleep", "2"}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container1) container2, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"sleep", "2"}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container2) // Start both containers if err := container1.Start(); err != nil { t.Fatal(err) } if err := container2.Start(); err != nil { t.Fatal(err) } // Make sure they are running before trying to kill them container1.WaitTimeout(250 * time.Millisecond) container2.WaitTimeout(250 * time.Millisecond) // If we are here, both containers should be running if !container1.State.IsRunning() { t.Fatal("Container not running") } if !container2.State.IsRunning() { t.Fatal("Container not running") } // Kill them if err := container1.Kill(); err != nil { t.Fatal(err) } if err := container2.Kill(); err != nil { t.Fatal(err) } } func TestStdin(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"cat"}, OpenStdin: true, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) stdin, err := container.StdinPipe() if err != nil { t.Fatal(err) } stdout, err := container.StdoutPipe() if err != nil { t.Fatal(err) } if err := container.Start(); err != nil { t.Fatal(err) } defer stdin.Close() defer stdout.Close() if _, err := io.WriteString(stdin, "hello world"); err != nil { t.Fatal(err) } if err := stdin.Close(); err != nil { t.Fatal(err) } container.Wait() output, err := ioutil.ReadAll(stdout) if err != nil { t.Fatal(err) } if string(output) != "hello world" { t.Fatalf("Unexpected output. Expected %s, received: %s", "hello world", string(output)) } } func TestTty(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"cat"}, OpenStdin: true, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) stdin, err := container.StdinPipe() if err != nil { t.Fatal(err) } stdout, err := container.StdoutPipe() if err != nil { t.Fatal(err) } if err := container.Start(); err != nil { t.Fatal(err) } defer stdin.Close() defer stdout.Close() if _, err := io.WriteString(stdin, "hello world"); err != nil { t.Fatal(err) } if err := stdin.Close(); err != nil { t.Fatal(err) } container.Wait() output, err := ioutil.ReadAll(stdout) if err != nil { t.Fatal(err) } if string(output) != "hello world" { t.Fatalf("Unexpected output. Expected %s, received: %s", "hello world", string(output)) } } func TestEnv(t *testing.T) { os.Setenv("TRUE", "false") os.Setenv("TRICKY", "tri\ncky\n") runtime := mkRuntime(t) defer nuke(runtime) config, _, _, err := runconfig.Parse([]string{"-e=FALSE=true", "-e=TRUE", "-e=TRICKY", GetTestImage(runtime).ID, "env"}, nil) if err != nil { t.Fatal(err) } container, _, err := runtime.Create(config, "") if err != nil { t.Fatal(err) } defer runtime.Destroy(container) stdout, err := container.StdoutPipe() if err != nil { t.Fatal(err) } defer stdout.Close() if err := container.Start(); err != nil { t.Fatal(err) } container.Wait() output, err := ioutil.ReadAll(stdout) if err != nil { t.Fatal(err) } actualEnv := strings.Split(string(output), "\n") if actualEnv[len(actualEnv)-1] == "" { actualEnv = actualEnv[:len(actualEnv)-1] } sort.Strings(actualEnv) goodEnv := []string{ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", "HOME=/", "HOSTNAME=" + utils.TruncateID(container.ID), "FALSE=true", "TRUE=false", "TRICKY=tri", "cky", "", } sort.Strings(goodEnv) if len(goodEnv) != len(actualEnv) { t.Fatalf("Wrong environment: should be %d variables, not: '%s'\n", len(goodEnv), strings.Join(actualEnv, ", ")) } for i := range goodEnv { if actualEnv[i] != goodEnv[i] { t.Fatalf("Wrong environment variable: should be %s, not %s", goodEnv[i], actualEnv[i]) } } } func TestEntrypoint(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, Entrypoint: []string{"/bin/echo"}, Cmd: []string{"-n", "foobar"}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) output, err := container.Output() if err != nil { t.Fatal(err) } if string(output) != "foobar" { t.Error(string(output)) } } func TestEntrypointNoCmd(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, Entrypoint: []string{"/bin/echo", "foobar"}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) output, err := container.Output() if err != nil { t.Fatal(err) } if strings.Trim(string(output), "\r\n") != "foobar" { t.Error(string(output)) } } func BenchmarkRunSequential(b *testing.B) { runtime := mkRuntime(b) defer nuke(runtime) for i := 0; i < b.N; i++ { container, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"echo", "-n", "foo"}, }, "", ) if err != nil { b.Fatal(err) } defer runtime.Destroy(container) output, err := container.Output() if err != nil { b.Fatal(err) } if string(output) != "foo" { b.Fatalf("Unexpected output: %s", output) } if err := runtime.Destroy(container); err != nil { b.Fatal(err) } } } func BenchmarkRunParallel(b *testing.B) { runtime := mkRuntime(b) defer nuke(runtime) var tasks []chan error for i := 0; i < b.N; i++ { complete := make(chan error) tasks = append(tasks, complete) go func(i int, complete chan error) { container, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"echo", "-n", "foo"}, }, "", ) if err != nil { complete <- err return } defer runtime.Destroy(container) if err := container.Start(); err != nil { complete <- err return } if err := container.WaitTimeout(15 * time.Second); err != nil { complete <- err return } // if string(output) != "foo" { // complete <- fmt.Errorf("Unexecpted output: %v", string(output)) // } if err := runtime.Destroy(container); err != nil { complete <- err return } complete <- nil }(i, complete) } var errors []error for _, task := range tasks { err := <-task if err != nil { errors = append(errors, err) } } if len(errors) > 0 { b.Fatal(errors) } } func tempDir(t *testing.T) string { tmpDir, err := ioutil.TempDir("", "docker-test-container") if err != nil { t.Fatal(err) } return tmpDir } // Test for #1737 func TestCopyVolumeUidGid(t *testing.T) { eng := NewTestEngine(t) r := mkRuntimeFromEngine(eng, t) defer r.Nuke() // Add directory not owned by root container1, _, _ := mkContainer(r, []string{"_", "/bin/sh", "-c", "mkdir -p /hello && touch /hello/test.txt && chown daemon.daemon /hello"}, t) defer r.Destroy(container1) if container1.State.IsRunning() { t.Errorf("Container shouldn't be running") } if err := container1.Run(); err != nil { t.Fatal(err) } if container1.State.IsRunning() { t.Errorf("Container shouldn't be running") } img, err := r.Commit(container1, "", "", "unit test commited image", "", nil) if err != nil { t.Error(err) } // Test that the uid and gid is copied from the image to the volume tmpDir1 := tempDir(t) defer os.RemoveAll(tmpDir1) stdout1, _ := runContainer(eng, r, []string{"-v", "/hello", img.ID, "stat", "-c", "%U %G", "/hello"}, t) if !strings.Contains(stdout1, "daemon daemon") { t.Fatal("Container failed to transfer uid and gid to volume") } } // Test for #1582 func TestCopyVolumeContent(t *testing.T) { eng := NewTestEngine(t) r := mkRuntimeFromEngine(eng, t) defer r.Nuke() // Put some content in a directory of a container and commit it container1, _, _ := mkContainer(r, []string{"_", "/bin/sh", "-c", "mkdir -p /hello/local && echo hello > /hello/local/world"}, t) defer r.Destroy(container1) if container1.State.IsRunning() { t.Errorf("Container shouldn't be running") } if err := container1.Run(); err != nil { t.Fatal(err) } if container1.State.IsRunning() { t.Errorf("Container shouldn't be running") } img, err := r.Commit(container1, "", "", "unit test commited image", "", nil) if err != nil { t.Error(err) } // Test that the content is copied from the image to the volume tmpDir1 := tempDir(t) defer os.RemoveAll(tmpDir1) stdout1, _ := runContainer(eng, r, []string{"-v", "/hello", img.ID, "find", "/hello"}, t) if !(strings.Contains(stdout1, "/hello/local/world") && strings.Contains(stdout1, "/hello/local")) { t.Fatal("Container failed to transfer content to volume") } } func TestBindMounts(t *testing.T) { eng := NewTestEngine(t) r := mkRuntimeFromEngine(eng, t) defer r.Nuke() tmpDir := tempDir(t) defer os.RemoveAll(tmpDir) writeFile(path.Join(tmpDir, "touch-me"), "", t) // Test reading from a read-only bind mount stdout, _ := runContainer(eng, r, []string{"-v", fmt.Sprintf("%s:/tmp:ro", tmpDir), "_", "ls", "/tmp"}, t) if !strings.Contains(stdout, "touch-me") { t.Fatal("Container failed to read from bind mount") } // test writing to bind mount runContainer(eng, r, []string{"-v", fmt.Sprintf("%s:/tmp:rw", tmpDir), "_", "touch", "/tmp/holla"}, t) readFile(path.Join(tmpDir, "holla"), t) // Will fail if the file doesn't exist // test mounting to an illegal destination directory if _, err := runContainer(eng, r, []string{"-v", fmt.Sprintf("%s:.", tmpDir), "_", "ls", "."}, nil); err == nil { t.Fatal("Container bind mounted illegal directory") } // test mount a file runContainer(eng, r, []string{"-v", fmt.Sprintf("%s/holla:/tmp/holla:rw", tmpDir), "_", "sh", "-c", "echo -n 'yotta' > /tmp/holla"}, t) content := readFile(path.Join(tmpDir, "holla"), t) // Will fail if the file doesn't exist if content != "yotta" { t.Fatal("Container failed to write to bind mount file") } } // Test that -volumes-from supports both read-only mounts func TestFromVolumesInReadonlyMode(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"/bin/echo", "-n", "foobar"}, Volumes: map[string]struct{}{"/test": {}}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) _, err = container.Output() if err != nil { t.Fatal(err) } if !container.VolumesRW["/test"] { t.Fail() } container2, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"/bin/echo", "-n", "foobar"}, VolumesFrom: container.ID + ":ro", }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container2) _, err = container2.Output() if err != nil { t.Fatal(err) } if container.Volumes["/test"] != container2.Volumes["/test"] { t.Logf("container volumes do not match: %s | %s ", container.Volumes["/test"], container2.Volumes["/test"]) t.Fail() } _, exists := container2.VolumesRW["/test"] if !exists { t.Logf("container2 is missing '/test' volume: %s", container2.VolumesRW) t.Fail() } if container2.VolumesRW["/test"] != false { t.Log("'/test' volume mounted in read-write mode, expected read-only") t.Fail() } } // Test that VolumesRW values are copied to the new container. Regression test for #1201 func TestVolumesFromReadonlyMount(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"/bin/echo", "-n", "foobar"}, Volumes: map[string]struct{}{"/test": {}}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) _, err = container.Output() if err != nil { t.Fatal(err) } if !container.VolumesRW["/test"] { t.Fail() } container2, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"/bin/echo", "-n", "foobar"}, VolumesFrom: container.ID, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container2) _, err = container2.Output() if err != nil { t.Fatal(err) } if container.Volumes["/test"] != container2.Volumes["/test"] { t.Fail() } actual, exists := container2.VolumesRW["/test"] if !exists { t.Fail() } if container.VolumesRW["/test"] != actual { t.Fail() } } // Test that restarting a container with a volume does not create a new volume on restart. Regression test for #819. func TestRestartWithVolumes(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"echo", "-n", "foobar"}, Volumes: map[string]struct{}{"/test": {}}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) for key := range container.Config.Volumes { if key != "/test" { t.Fail() } } _, err = container.Output() if err != nil { t.Fatal(err) } expected := container.Volumes["/test"] if expected == "" { t.Fail() } // Run the container again to verify the volume path persists _, err = container.Output() if err != nil { t.Fatal(err) } actual := container.Volumes["/test"] if expected != actual { t.Fatalf("Expected volume path: %s Actual path: %s", expected, actual) } } // Test for #1351 func TestVolumesFromWithVolumes(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"sh", "-c", "echo -n bar > /test/foo"}, Volumes: map[string]struct{}{"/test": {}}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) for key := range container.Config.Volumes { if key != "/test" { t.Fail() } } _, err = container.Output() if err != nil { t.Fatal(err) } expected := container.Volumes["/test"] if expected == "" { t.Fail() } container2, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"cat", "/test/foo"}, VolumesFrom: container.ID, Volumes: map[string]struct{}{"/test": {}}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container2) output, err := container2.Output() if err != nil { t.Fatal(err) } if string(output) != "bar" { t.Fail() } if container.Volumes["/test"] != container2.Volumes["/test"] { t.Fail() } // Ensure it restarts successfully _, err = container2.Output() if err != nil { t.Fatal(err) } } func TestContainerNetwork(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, // If I change this to ping 8.8.8.8 it fails. Any idea why? - timthelion Cmd: []string{"ping", "-c", "1", "127.0.0.1"}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) if err := container.Run(); err != nil { t.Fatal(err) } if code := container.State.GetExitCode(); code != 0 { t.Fatalf("Unexpected ping 127.0.0.1 exit code %d (expected 0)", code) } } // Issue #4681 func TestLoopbackFunctionsWhenNetworkingIsDissabled(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"ping", "-c", "1", "127.0.0.1"}, NetworkDisabled: true, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) if err := container.Run(); err != nil { t.Fatal(err) } if code := container.State.GetExitCode(); code != 0 { t.Fatalf("Unexpected ping 127.0.0.1 exit code %d (expected 0)", code) } } func TestOnlyLoopbackExistsWhenUsingDisableNetworkOption(t *testing.T) { eng := NewTestEngine(t) runtime := mkRuntimeFromEngine(eng, t) defer nuke(runtime) config, hc, _, err := runconfig.Parse([]string{"-n=false", GetTestImage(runtime).ID, "ip", "addr", "show"}, nil) if err != nil { t.Fatal(err) } jobCreate := eng.Job("create") if err := jobCreate.ImportEnv(config); err != nil { t.Fatal(err) } var id string jobCreate.Stdout.AddString(&id) if err := jobCreate.Run(); err != nil { t.Fatal(err) } // FIXME: this hack can be removed once Wait is a job c := runtime.Get(id) if c == nil { t.Fatalf("Couldn't retrieve container %s from runtime", id) } stdout, err := c.StdoutPipe() if err != nil { t.Fatal(err) } jobStart := eng.Job("start", id) if err := jobStart.ImportEnv(hc); err != nil { t.Fatal(err) } if err := jobStart.Run(); err != nil { t.Fatal(err) } c.WaitTimeout(500 * time.Millisecond) c.Wait() output, err := ioutil.ReadAll(stdout) if err != nil { t.Fatal(err) } interfaces := regexp.MustCompile(`(?m)^[0-9]+: [a-zA-Z0-9]+`).FindAllString(string(output), -1) if len(interfaces) != 1 { t.Fatalf("Wrong interface count in test container: expected [*: lo], got %s", interfaces) } if !strings.HasSuffix(interfaces[0], ": lo") { t.Fatalf("Wrong interface in test container: expected [*: lo], got %s", interfaces) } } func TestPrivilegedCanMknod(t *testing.T) { eng := NewTestEngine(t) runtime := mkRuntimeFromEngine(eng, t) defer runtime.Nuke() if output, err := runContainer(eng, runtime, []string{"--privileged", "_", "sh", "-c", "mknod /tmp/sda b 8 0 && echo ok"}, t); output != "ok\n" { t.Fatalf("Could not mknod into privileged container %s %v", output, err) } } func TestPrivilegedCanMount(t *testing.T) { eng := NewTestEngine(t) runtime := mkRuntimeFromEngine(eng, t) defer runtime.Nuke() if output, _ := runContainer(eng, runtime, []string{"--privileged", "_", "sh", "-c", "mount -t tmpfs none /tmp && echo ok"}, t); output != "ok\n" { t.Fatal("Could not mount into privileged container") } } func TestPrivilegedCannotMknod(t *testing.T) { eng := NewTestEngine(t) runtime := mkRuntimeFromEngine(eng, t) defer runtime.Nuke() if output, _ := runContainer(eng, runtime, []string{"_", "sh", "-c", "mknod /tmp/sda b 8 0 || echo ok"}, t); output != "ok\n" { t.Fatal("Could mknod into secure container") } } func TestPrivilegedCannotMount(t *testing.T) { eng := NewTestEngine(t) runtime := mkRuntimeFromEngine(eng, t) defer runtime.Nuke() if output, _ := runContainer(eng, runtime, []string{"_", "sh", "-c", "mount -t tmpfs none /tmp || echo ok"}, t); output != "ok\n" { t.Fatal("Could mount into secure container") } } func TestMultipleVolumesFrom(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create(&runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"sh", "-c", "echo -n bar > /test/foo"}, Volumes: map[string]struct{}{"/test": {}}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container) for key := range container.Config.Volumes { if key != "/test" { t.Fail() } } _, err = container.Output() if err != nil { t.Fatal(err) } expected := container.Volumes["/test"] if expected == "" { t.Fail() } container2, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"sh", "-c", "echo -n bar > /other/foo"}, Volumes: map[string]struct{}{"/other": {}}, }, "", ) if err != nil { t.Fatal(err) } defer runtime.Destroy(container2) for key := range container2.Config.Volumes { if key != "/other" { t.FailNow() } } if _, err := container2.Output(); err != nil { t.Fatal(err) } container3, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"/bin/echo", "-n", "foobar"}, VolumesFrom: strings.Join([]string{container.ID, container2.ID}, ","), }, "") if err != nil { t.Fatal(err) } defer runtime.Destroy(container3) if _, err := container3.Output(); err != nil { t.Fatal(err) } if container3.Volumes["/test"] != container.Volumes["/test"] { t.Fail() } if container3.Volumes["/other"] != container2.Volumes["/other"] { t.Fail() } } func TestRestartGhost(t *testing.T) { runtime := mkRuntime(t) defer nuke(runtime) container, _, err := runtime.Create( &runconfig.Config{ Image: GetTestImage(runtime).ID, Cmd: []string{"sh", "-c", "echo -n bar > /test/foo"}, Volumes: map[string]struct{}{"/test": {}}, }, "", ) if err != nil { t.Fatal(err) } if err := container.Kill(); err != nil { t.Fatal(err) } container.State.SetGhost(true) _, err = container.Output() if err != nil { t.Fatal(err) } }