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Add support for --pid=container:<id>

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Signed-off-by: Mrunal Patel <mrunalp@gmail.com>
Upstream-commit: fb43ef649bc6aa11ca19c0e046518e85e1c7e2fa
Component: engine
This commit is contained in:
Mrunal Patel
2016-05-17 13:49:05 -04:00
parent f38f115e61
commit 612ad97231
9 changed files with 154 additions and 13 deletions
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components/engine/integration-cli/docker_cli_run_test.go
+47
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@@ -2443,6 +2443,53 @@ func (s *DockerSuite) TestRunModeIpcContainerNotRunning(c *check.C) {
}
}
func (s *DockerSuite) TestRunModePidContainer(c *check.C) {
// Not applicable on Windows as uses Unix-specific capabilities
testRequires(c, SameHostDaemon, DaemonIsLinux)
out, _ := dockerCmd(c, "run", "-d", "busybox", "sh", "-c", "top")
id := strings.TrimSpace(out)
state := inspectField(c, id, "State.Running")
if state != "true" {
c.Fatal("Container state is 'not running'")
}
pid1 := inspectField(c, id, "State.Pid")
parentContainerPid, err := os.Readlink(fmt.Sprintf("/proc/%s/ns/pid", pid1))
if err != nil {
c.Fatal(err)
}
out, _ = dockerCmd(c, "run", fmt.Sprintf("--pid=container:%s", id), "busybox", "readlink", "/proc/self/ns/pid")
out = strings.Trim(out, "\n")
if parentContainerPid != out {
c.Fatalf("PID different with --pid=container:%s %s != %s\n", id, parentContainerPid, out)
}
}
func (s *DockerSuite) TestRunModePidContainerNotExists(c *check.C) {
// Not applicable on Windows as uses Unix-specific capabilities
testRequires(c, DaemonIsLinux)
out, _, err := dockerCmdWithError("run", "-d", "--pid", "container:abcd1234", "busybox", "top")
if !strings.Contains(out, "abcd1234") || err == nil {
c.Fatalf("run PID from a non exists container should with correct error out")
}
}
func (s *DockerSuite) TestRunModePidContainerNotRunning(c *check.C) {
// Not applicable on Windows as uses Unix-specific capabilities
testRequires(c, SameHostDaemon, DaemonIsLinux)
out, _ := dockerCmd(c, "create", "busybox")
id := strings.TrimSpace(out)
out, _, err := dockerCmdWithError("run", fmt.Sprintf("--pid=container:%s", id), "busybox")
if err == nil {
c.Fatalf("Run container with pid mode container should fail with non running container: %s\n%s", out, err)
}
}
func (s *DockerSuite) TestRunMountShmMqueueFromHost(c *check.C) {
// Not applicable on Windows as uses Unix-specific capabilities
testRequires(c, SameHostDaemon, DaemonIsLinux, NotUserNamespace)