package main import ( "os/exec" "strings" "time" "github.com/go-check/check" ) func (s *DockerSuite) TestRestartStoppedContainer(c *check.C) { runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "echo", "foobar") out, _, err := runCommandWithOutput(runCmd) if err != nil { c.Fatal(out, err) } cleanedContainerID := strings.TrimSpace(out) runCmd = exec.Command(dockerBinary, "wait", cleanedContainerID) if out, _, err = runCommandWithOutput(runCmd); err != nil { c.Fatal(out, err) } runCmd = exec.Command(dockerBinary, "logs", cleanedContainerID) out, _, err = runCommandWithOutput(runCmd) if err != nil { c.Fatal(out, err) } if out != "foobar\n" { c.Errorf("container should've printed 'foobar'") } runCmd = exec.Command(dockerBinary, "restart", cleanedContainerID) if out, _, err = runCommandWithOutput(runCmd); err != nil { c.Fatal(out, err) } runCmd = exec.Command(dockerBinary, "logs", cleanedContainerID) out, _, err = runCommandWithOutput(runCmd) if err != nil { c.Fatal(out, err) } if out != "foobar\nfoobar\n" { c.Errorf("container should've printed 'foobar' twice") } } func (s *DockerSuite) TestRestartRunningContainer(c *check.C) { runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", "echo foobar && sleep 30 && echo 'should not print this'") out, _, err := runCommandWithOutput(runCmd) if err != nil { c.Fatal(out, err) } cleanedContainerID := strings.TrimSpace(out) time.Sleep(1 * time.Second) runCmd = exec.Command(dockerBinary, "logs", cleanedContainerID) out, _, err = runCommandWithOutput(runCmd) if err != nil { c.Fatal(out, err) } if out != "foobar\n" { c.Errorf("container should've printed 'foobar'") } runCmd = exec.Command(dockerBinary, "restart", "-t", "1", cleanedContainerID) if out, _, err = runCommandWithOutput(runCmd); err != nil { c.Fatal(out, err) } runCmd = exec.Command(dockerBinary, "logs", cleanedContainerID) out, _, err = runCommandWithOutput(runCmd) if err != nil { c.Fatal(out, err) } time.Sleep(1 * time.Second) if out != "foobar\nfoobar\n" { c.Errorf("container should've printed 'foobar' twice") } } // Test that restarting a container with a volume does not create a new volume on restart. Regression test for #819. func (s *DockerSuite) TestRestartWithVolumes(c *check.C) { runCmd := exec.Command(dockerBinary, "run", "-d", "-v", "/test", "busybox", "top") out, _, err := runCommandWithOutput(runCmd) if err != nil { c.Fatal(out, err) } cleanedContainerID := strings.TrimSpace(out) runCmd = exec.Command(dockerBinary, "inspect", "--format", "{{ len .Volumes }}", cleanedContainerID) out, _, err = runCommandWithOutput(runCmd) if err != nil { c.Fatal(out, err) } if out = strings.Trim(out, " \n\r"); out != "1" { c.Errorf("expect 1 volume received %s", out) } runCmd = exec.Command(dockerBinary, "inspect", "--format", "{{ .Volumes }}", cleanedContainerID) volumes, _, err := runCommandWithOutput(runCmd) if err != nil { c.Fatal(volumes, err) } runCmd = exec.Command(dockerBinary, "restart", cleanedContainerID) if out, _, err = runCommandWithOutput(runCmd); err != nil { c.Fatal(out, err) } runCmd = exec.Command(dockerBinary, "inspect", "--format", "{{ len .Volumes }}", cleanedContainerID) out, _, err = runCommandWithOutput(runCmd) if err != nil { c.Fatal(out, err) } if out = strings.Trim(out, " \n\r"); out != "1" { c.Errorf("expect 1 volume after restart received %s", out) } runCmd = exec.Command(dockerBinary, "inspect", "--format", "{{ .Volumes }}", cleanedContainerID) volumesAfterRestart, _, err := runCommandWithOutput(runCmd) if err != nil { c.Fatal(volumesAfterRestart, err) } if volumes != volumesAfterRestart { volumes = strings.Trim(volumes, " \n\r") volumesAfterRestart = strings.Trim(volumesAfterRestart, " \n\r") c.Errorf("expected volume path: %s Actual path: %s", volumes, volumesAfterRestart) } } func (s *DockerSuite) TestRestartPolicyNO(c *check.C) { cmd := exec.Command(dockerBinary, "run", "-d", "--restart=no", "busybox", "false") out, _, err := runCommandWithOutput(cmd) if err != nil { c.Fatal(err, out) } id := strings.TrimSpace(string(out)) name, err := inspectField(id, "HostConfig.RestartPolicy.Name") if err != nil { c.Fatal(err, out) } if name != "no" { c.Fatalf("Container restart policy name is %s, expected %s", name, "no") } } func (s *DockerSuite) TestRestartPolicyAlways(c *check.C) { cmd := exec.Command(dockerBinary, "run", "-d", "--restart=always", "busybox", "false") out, _, err := runCommandWithOutput(cmd) if err != nil { c.Fatal(err, out) } id := strings.TrimSpace(string(out)) name, err := inspectField(id, "HostConfig.RestartPolicy.Name") if err != nil { c.Fatal(err, out) } if name != "always" { c.Fatalf("Container restart policy name is %s, expected %s", name, "always") } MaximumRetryCount, err := inspectField(id, "HostConfig.RestartPolicy.MaximumRetryCount") if err != nil { c.Fatal(err) } // MaximumRetryCount=0 if the restart policy is always if MaximumRetryCount != "0" { c.Fatalf("Container Maximum Retry Count is %s, expected %s", MaximumRetryCount, "0") } } func (s *DockerSuite) TestRestartPolicyOnFailure(c *check.C) { cmd := exec.Command(dockerBinary, "run", "-d", "--restart=on-failure:1", "busybox", "false") out, _, err := runCommandWithOutput(cmd) if err != nil { c.Fatal(err, out) } id := strings.TrimSpace(string(out)) name, err := inspectField(id, "HostConfig.RestartPolicy.Name") if err != nil { c.Fatal(err, out) } if name != "on-failure" { c.Fatalf("Container restart policy name is %s, expected %s", name, "on-failure") } } // a good container with --restart=on-failure:3 // MaximumRetryCount!=0; RestartCount=0 func (s *DockerSuite) TestContainerRestartwithGoodContainer(c *check.C) { out, err := exec.Command(dockerBinary, "run", "-d", "--restart=on-failure:3", "busybox", "true").CombinedOutput() if err != nil { c.Fatal(string(out), err) } id := strings.TrimSpace(string(out)) if err := waitInspect(id, "{{ .State.Restarting }} {{ .State.Running }}", "false false", 5); err != nil { c.Fatal(err) } count, err := inspectField(id, "RestartCount") if err != nil { c.Fatal(err) } if count != "0" { c.Fatalf("Container was restarted %s times, expected %d", count, 0) } MaximumRetryCount, err := inspectField(id, "HostConfig.RestartPolicy.MaximumRetryCount") if err != nil { c.Fatal(err) } if MaximumRetryCount != "3" { c.Fatalf("Container Maximum Retry Count is %s, expected %s", MaximumRetryCount, "3") } }