7ae170ddab
When user try to restart a restarting container, docker client report
error: "container is already active", and container will be stopped
instead be restarted which is seriously wrong.
What's more critical is that when user try to start this container
again, it will always fail.
This error can also be reproduced with a `docker stop`+`docker start`.
And this commit will fix the bug.
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
(cherry picked from commit a705e166cf)
249 lines
8.3 KiB
Go
249 lines
8.3 KiB
Go
package main
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import (
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"os"
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"strconv"
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"strings"
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"time"
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"github.com/docker/docker/pkg/integration/checker"
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"github.com/go-check/check"
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)
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func (s *DockerSuite) TestRestartStoppedContainer(c *check.C) {
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dockerCmd(c, "run", "--name=test", "busybox", "echo", "foobar")
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cleanedContainerID, err := getIDByName("test")
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c.Assert(err, check.IsNil)
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out, _ := dockerCmd(c, "logs", cleanedContainerID)
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c.Assert(out, checker.Equals, "foobar\n")
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dockerCmd(c, "restart", cleanedContainerID)
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// Wait until the container has stopped
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err = waitInspect(cleanedContainerID, "{{.State.Running}}", "false", 20*time.Second)
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c.Assert(err, checker.IsNil)
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out, _ = dockerCmd(c, "logs", cleanedContainerID)
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c.Assert(out, checker.Equals, "foobar\nfoobar\n")
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}
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func (s *DockerSuite) TestRestartRunningContainer(c *check.C) {
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out, _ := dockerCmd(c, "run", "-d", "busybox", "sh", "-c", "echo foobar && sleep 30 && echo 'should not print this'")
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cleanedContainerID := strings.TrimSpace(out)
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c.Assert(waitRun(cleanedContainerID), checker.IsNil)
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out, _ = dockerCmd(c, "logs", cleanedContainerID)
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c.Assert(out, checker.Equals, "foobar\n")
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dockerCmd(c, "restart", "-t", "1", cleanedContainerID)
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out, _ = dockerCmd(c, "logs", cleanedContainerID)
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c.Assert(waitRun(cleanedContainerID), checker.IsNil)
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c.Assert(out, checker.Equals, "foobar\nfoobar\n")
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}
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// Test that restarting a container with a volume does not create a new volume on restart. Regression test for #819.
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func (s *DockerSuite) TestRestartWithVolumes(c *check.C) {
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prefix, slash := getPrefixAndSlashFromDaemonPlatform()
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out, _ := runSleepingContainer(c, "-d", "-v", prefix+slash+"test")
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cleanedContainerID := strings.TrimSpace(out)
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out, err := inspectFilter(cleanedContainerID, "len .Mounts")
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c.Assert(err, check.IsNil, check.Commentf("failed to inspect %s: %s", cleanedContainerID, out))
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out = strings.Trim(out, " \n\r")
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c.Assert(out, checker.Equals, "1")
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source, err := inspectMountSourceField(cleanedContainerID, prefix+slash+"test")
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c.Assert(err, checker.IsNil)
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dockerCmd(c, "restart", cleanedContainerID)
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out, err = inspectFilter(cleanedContainerID, "len .Mounts")
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c.Assert(err, check.IsNil, check.Commentf("failed to inspect %s: %s", cleanedContainerID, out))
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out = strings.Trim(out, " \n\r")
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c.Assert(out, checker.Equals, "1")
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sourceAfterRestart, err := inspectMountSourceField(cleanedContainerID, prefix+slash+"test")
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c.Assert(err, checker.IsNil)
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c.Assert(source, checker.Equals, sourceAfterRestart)
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}
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func (s *DockerSuite) TestRestartPolicyNO(c *check.C) {
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out, _ := dockerCmd(c, "run", "-d", "--restart=no", "busybox", "false")
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id := strings.TrimSpace(string(out))
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name := inspectField(c, id, "HostConfig.RestartPolicy.Name")
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c.Assert(name, checker.Equals, "no")
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}
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func (s *DockerSuite) TestRestartPolicyAlways(c *check.C) {
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out, _ := dockerCmd(c, "run", "-d", "--restart=always", "busybox", "false")
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id := strings.TrimSpace(string(out))
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name := inspectField(c, id, "HostConfig.RestartPolicy.Name")
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c.Assert(name, checker.Equals, "always")
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MaximumRetryCount := inspectField(c, id, "HostConfig.RestartPolicy.MaximumRetryCount")
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// MaximumRetryCount=0 if the restart policy is always
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c.Assert(MaximumRetryCount, checker.Equals, "0")
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}
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func (s *DockerSuite) TestRestartPolicyOnFailure(c *check.C) {
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out, _ := dockerCmd(c, "run", "-d", "--restart=on-failure:1", "busybox", "false")
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id := strings.TrimSpace(string(out))
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name := inspectField(c, id, "HostConfig.RestartPolicy.Name")
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c.Assert(name, checker.Equals, "on-failure")
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}
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// a good container with --restart=on-failure:3
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// MaximumRetryCount!=0; RestartCount=0
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func (s *DockerSuite) TestRestartContainerwithGoodContainer(c *check.C) {
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out, _ := dockerCmd(c, "run", "-d", "--restart=on-failure:3", "busybox", "true")
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id := strings.TrimSpace(string(out))
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err := waitInspect(id, "{{ .State.Restarting }} {{ .State.Running }}", "false false", 30*time.Second)
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c.Assert(err, checker.IsNil)
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count := inspectField(c, id, "RestartCount")
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c.Assert(count, checker.Equals, "0")
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MaximumRetryCount := inspectField(c, id, "HostConfig.RestartPolicy.MaximumRetryCount")
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c.Assert(MaximumRetryCount, checker.Equals, "3")
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}
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func (s *DockerSuite) TestRestartContainerSuccess(c *check.C) {
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testRequires(c, SameHostDaemon)
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out, _ := runSleepingContainer(c, "-d", "--restart=always")
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id := strings.TrimSpace(out)
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c.Assert(waitRun(id), check.IsNil)
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pidStr := inspectField(c, id, "State.Pid")
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pid, err := strconv.Atoi(pidStr)
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c.Assert(err, check.IsNil)
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p, err := os.FindProcess(pid)
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c.Assert(err, check.IsNil)
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c.Assert(p, check.NotNil)
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err = p.Kill()
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c.Assert(err, check.IsNil)
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err = waitInspect(id, "{{.RestartCount}}", "1", 30*time.Second)
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c.Assert(err, check.IsNil)
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err = waitInspect(id, "{{.State.Status}}", "running", 30*time.Second)
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c.Assert(err, check.IsNil)
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}
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func (s *DockerSuite) TestRestartWithPolicyUserDefinedNetwork(c *check.C) {
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// TODO Windows. This may be portable following HNS integration post TP5.
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testRequires(c, DaemonIsLinux, SameHostDaemon, NotUserNamespace, NotArm)
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dockerCmd(c, "network", "create", "-d", "bridge", "udNet")
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dockerCmd(c, "run", "-d", "--net=udNet", "--name=first", "busybox", "top")
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c.Assert(waitRun("first"), check.IsNil)
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dockerCmd(c, "run", "-d", "--restart=always", "--net=udNet", "--name=second",
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"--link=first:foo", "busybox", "top")
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c.Assert(waitRun("second"), check.IsNil)
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// ping to first and its alias foo must succeed
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_, _, err := dockerCmdWithError("exec", "second", "ping", "-c", "1", "first")
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c.Assert(err, check.IsNil)
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_, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "foo")
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c.Assert(err, check.IsNil)
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// Now kill the second container and let the restart policy kick in
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pidStr := inspectField(c, "second", "State.Pid")
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pid, err := strconv.Atoi(pidStr)
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c.Assert(err, check.IsNil)
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p, err := os.FindProcess(pid)
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c.Assert(err, check.IsNil)
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c.Assert(p, check.NotNil)
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err = p.Kill()
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c.Assert(err, check.IsNil)
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err = waitInspect("second", "{{.RestartCount}}", "1", 5*time.Second)
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c.Assert(err, check.IsNil)
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err = waitInspect("second", "{{.State.Status}}", "running", 5*time.Second)
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// ping to first and its alias foo must still succeed
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_, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "first")
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c.Assert(err, check.IsNil)
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_, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "foo")
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c.Assert(err, check.IsNil)
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}
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func (s *DockerSuite) TestRestartPolicyAfterRestart(c *check.C) {
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testRequires(c, SameHostDaemon)
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out, _ := runSleepingContainer(c, "-d", "--restart=always")
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id := strings.TrimSpace(out)
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c.Assert(waitRun(id), check.IsNil)
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dockerCmd(c, "restart", id)
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c.Assert(waitRun(id), check.IsNil)
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pidStr := inspectField(c, id, "State.Pid")
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pid, err := strconv.Atoi(pidStr)
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c.Assert(err, check.IsNil)
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p, err := os.FindProcess(pid)
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c.Assert(err, check.IsNil)
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c.Assert(p, check.NotNil)
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err = p.Kill()
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c.Assert(err, check.IsNil)
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err = waitInspect(id, "{{.RestartCount}}", "1", 30*time.Second)
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c.Assert(err, check.IsNil)
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err = waitInspect(id, "{{.State.Status}}", "running", 30*time.Second)
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c.Assert(err, check.IsNil)
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}
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func (s *DockerSuite) TestRestartContainerwithRestartPolicy(c *check.C) {
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out1, _ := dockerCmd(c, "run", "-d", "--restart=on-failure:3", "busybox", "false")
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out2, _ := dockerCmd(c, "run", "-d", "--restart=always", "busybox", "false")
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id1 := strings.TrimSpace(string(out1))
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id2 := strings.TrimSpace(string(out2))
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err := waitInspect(id1, "{{ .State.Restarting }} {{ .State.Running }}", "false false", 30*time.Second)
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c.Assert(err, checker.IsNil)
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// TODO: fix racey problem during restart:
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// https://jenkins.dockerproject.org/job/Docker-PRs-Win2Lin/24665/console
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// Error response from daemon: Cannot restart container 6655f620d90b390527db23c0a15b3e46d86a58ecec20a5697ab228d860174251: remove /var/run/docker/libcontainerd/6655f620d90b390527db23c0a15b3e46d86a58ecec20a5697ab228d860174251/rootfs: device or resource busy
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if _, _, err := dockerCmdWithError("restart", id1); err != nil {
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// if restart met racey problem, try again
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time.Sleep(500 * time.Millisecond)
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dockerCmd(c, "restart", id1)
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}
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if _, _, err := dockerCmdWithError("restart", id2); err != nil {
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// if restart met racey problem, try again
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time.Sleep(500 * time.Millisecond)
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dockerCmd(c, "restart", id2)
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}
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dockerCmd(c, "stop", id1)
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dockerCmd(c, "stop", id2)
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dockerCmd(c, "start", id1)
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dockerCmd(c, "start", id2)
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}
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