func TestEnter(t *testing.T) { if testing.Short() { return } root, err := newTestRoot() ok(t, err) defer os.RemoveAll(root) rootfs, err := newRootfs() ok(t, err) defer remove(rootfs) config := newTemplateConfig(rootfs) container, err := factory.Create("test", config) ok(t, err) defer container.Destroy() // Execute a first process in the container stdinR, stdinW, err := os.Pipe() ok(t, err) var stdout, stdout2 bytes.Buffer pconfig := libcontainer.Process{ Args: []string{"sh", "-c", "cat && readlink /proc/self/ns/pid"}, Env: standardEnvironment, Stdin: stdinR, Stdout: &stdout, } err = container.Start(&pconfig) stdinR.Close() defer stdinW.Close() ok(t, err) pid, err := pconfig.Pid() ok(t, err) // Execute another process in the container stdinR2, stdinW2, err := os.Pipe() ok(t, err) pconfig2 := libcontainer.Process{ Env: standardEnvironment, } pconfig2.Args = []string{"sh", "-c", "cat && readlink /proc/self/ns/pid"} pconfig2.Stdin = stdinR2 pconfig2.Stdout = &stdout2 err = container.Start(&pconfig2) stdinR2.Close() defer stdinW2.Close() ok(t, err) pid2, err := pconfig2.Pid() ok(t, err) processes, err := container.Processes() ok(t, err) n := 0 for i := range processes { if processes[i] == pid || processes[i] == pid2 { n++ } } if n != 2 { t.Fatal("unexpected number of processes", processes, pid, pid2) } // Wait processes stdinW2.Close() waitProcess(&pconfig2, t) stdinW.Close() waitProcess(&pconfig, t) // Check that both processes live in the same pidns pidns := string(stdout.Bytes()) ok(t, err) pidns2 := string(stdout2.Bytes()) ok(t, err) if pidns != pidns2 { t.Fatal("The second process isn't in the required pid namespace", pidns, pidns2) } }