package main import ( "os" "strconv" "strings" "time" "github.com/docker/docker/pkg/integration/checker" "github.com/go-check/check" ) func (s *DockerSuite) TestRestartStoppedContainer(c *check.C) { testRequires(c, DaemonIsLinux) out, _ := dockerCmd(c, "run", "-d", "busybox", "echo", "foobar") cleanedContainerID := strings.TrimSpace(out) dockerCmd(c, "wait", cleanedContainerID) out, _ = dockerCmd(c, "logs", cleanedContainerID) c.Assert(out, checker.Equals, "foobar\n") dockerCmd(c, "restart", cleanedContainerID) out, _ = dockerCmd(c, "logs", cleanedContainerID) c.Assert(out, checker.Equals, "foobar\nfoobar\n") } func (s *DockerSuite) TestRestartRunningContainer(c *check.C) { testRequires(c, DaemonIsLinux) out, _ := dockerCmd(c, "run", "-d", "busybox", "sh", "-c", "echo foobar && sleep 30 && echo 'should not print this'") cleanedContainerID := strings.TrimSpace(out) c.Assert(waitRun(cleanedContainerID), checker.IsNil) out, _ = dockerCmd(c, "logs", cleanedContainerID) c.Assert(out, checker.Equals, "foobar\n") dockerCmd(c, "restart", "-t", "1", cleanedContainerID) out, _ = dockerCmd(c, "logs", cleanedContainerID) c.Assert(waitRun(cleanedContainerID), checker.IsNil) c.Assert(out, checker.Equals, "foobar\nfoobar\n") } // 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) { testRequires(c, DaemonIsLinux) out, _ := dockerCmd(c, "run", "-d", "-v", "/test", "busybox", "top") cleanedContainerID := strings.TrimSpace(out) out, err := inspectFilter(cleanedContainerID, "len .Mounts") c.Assert(err, check.IsNil, check.Commentf("failed to inspect %s: %s", cleanedContainerID, out)) out = strings.Trim(out, " \n\r") c.Assert(out, checker.Equals, "1") source, err := inspectMountSourceField(cleanedContainerID, "/test") c.Assert(err, checker.IsNil) dockerCmd(c, "restart", cleanedContainerID) out, err = inspectFilter(cleanedContainerID, "len .Mounts") c.Assert(err, check.IsNil, check.Commentf("failed to inspect %s: %s", cleanedContainerID, out)) out = strings.Trim(out, " \n\r") c.Assert(out, checker.Equals, "1") sourceAfterRestart, err := inspectMountSourceField(cleanedContainerID, "/test") c.Assert(err, checker.IsNil) c.Assert(source, checker.Equals, sourceAfterRestart) } func (s *DockerSuite) TestRestartPolicyNO(c *check.C) { testRequires(c, DaemonIsLinux) out, _ := dockerCmd(c, "run", "-d", "--restart=no", "busybox", "false") id := strings.TrimSpace(string(out)) name := inspectField(c, id, "HostConfig.RestartPolicy.Name") c.Assert(name, checker.Equals, "no") } func (s *DockerSuite) TestRestartPolicyAlways(c *check.C) { testRequires(c, DaemonIsLinux) out, _ := dockerCmd(c, "run", "-d", "--restart=always", "busybox", "false") id := strings.TrimSpace(string(out)) name := inspectField(c, id, "HostConfig.RestartPolicy.Name") c.Assert(name, checker.Equals, "always") MaximumRetryCount := inspectField(c, id, "HostConfig.RestartPolicy.MaximumRetryCount") // MaximumRetryCount=0 if the restart policy is always c.Assert(MaximumRetryCount, checker.Equals, "0") } func (s *DockerSuite) TestRestartPolicyOnFailure(c *check.C) { testRequires(c, DaemonIsLinux) out, _ := dockerCmd(c, "run", "-d", "--restart=on-failure:1", "busybox", "false") id := strings.TrimSpace(string(out)) name := inspectField(c, id, "HostConfig.RestartPolicy.Name") c.Assert(name, checker.Equals, "on-failure") } // a good container with --restart=on-failure:3 // MaximumRetryCount!=0; RestartCount=0 func (s *DockerSuite) TestContainerRestartwithGoodContainer(c *check.C) { testRequires(c, DaemonIsLinux) out, _ := dockerCmd(c, "run", "-d", "--restart=on-failure:3", "busybox", "true") id := strings.TrimSpace(string(out)) err := waitInspect(id, "{{ .State.Restarting }} {{ .State.Running }}", "false false", 5*time.Second) c.Assert(err, checker.IsNil) count := inspectField(c, id, "RestartCount") c.Assert(count, checker.Equals, "0") MaximumRetryCount := inspectField(c, id, "HostConfig.RestartPolicy.MaximumRetryCount") c.Assert(MaximumRetryCount, checker.Equals, "3") } func (s *DockerSuite) TestContainerRestartSuccess(c *check.C) { testRequires(c, DaemonIsLinux, SameHostDaemon) out, _ := dockerCmd(c, "run", "-d", "--restart=always", "busybox", "top") id := strings.TrimSpace(out) c.Assert(waitRun(id), check.IsNil) pidStr := inspectField(c, id, "State.Pid") pid, err := strconv.Atoi(pidStr) c.Assert(err, check.IsNil) p, err := os.FindProcess(pid) c.Assert(err, check.IsNil) c.Assert(p, check.NotNil) err = p.Kill() c.Assert(err, check.IsNil) err = waitInspect(id, "{{.RestartCount}}", "1", 5*time.Second) c.Assert(err, check.IsNil) err = waitInspect(id, "{{.State.Status}}", "running", 5*time.Second) c.Assert(err, check.IsNil) } func (s *DockerSuite) TestUserDefinedNetworkWithRestartPolicy(c *check.C) { testRequires(c, DaemonIsLinux, SameHostDaemon, NotUserNamespace, NotArm) dockerCmd(c, "network", "create", "-d", "bridge", "udNet") dockerCmd(c, "run", "-d", "--net=udNet", "--name=first", "busybox", "top") c.Assert(waitRun("first"), check.IsNil) dockerCmd(c, "run", "-d", "--restart=always", "--net=udNet", "--name=second", "--link=first:foo", "busybox", "top") c.Assert(waitRun("second"), check.IsNil) // ping to first and its alias foo must succeed _, _, err := dockerCmdWithError("exec", "second", "ping", "-c", "1", "first") c.Assert(err, check.IsNil) _, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "foo") c.Assert(err, check.IsNil) // Now kill the second container and let the restart policy kick in pidStr := inspectField(c, "second", "State.Pid") pid, err := strconv.Atoi(pidStr) c.Assert(err, check.IsNil) p, err := os.FindProcess(pid) c.Assert(err, check.IsNil) c.Assert(p, check.NotNil) err = p.Kill() c.Assert(err, check.IsNil) err = waitInspect("second", "{{.RestartCount}}", "1", 5*time.Second) c.Assert(err, check.IsNil) err = waitInspect("second", "{{.State.Status}}", "running", 5*time.Second) // ping to first and its alias foo must still succeed _, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "first") c.Assert(err, check.IsNil) _, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "foo") c.Assert(err, check.IsNil) }