mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
1046 lines
37 KiB
Go
1046 lines
37 KiB
Go
// +build !windows
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package main
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import (
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"bufio"
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"regexp"
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"strconv"
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"strings"
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"sync"
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"syscall"
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"time"
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"github.com/docker/docker/pkg/homedir"
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"github.com/docker/docker/pkg/integration/checker"
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"github.com/docker/docker/pkg/mount"
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"github.com/docker/docker/pkg/parsers"
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"github.com/docker/docker/pkg/sysinfo"
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"github.com/go-check/check"
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"github.com/kr/pty"
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)
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// #6509
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func (s *DockerSuite) TestRunRedirectStdout(c *check.C) {
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checkRedirect := func(command string) {
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_, tty, err := pty.Open()
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c.Assert(err, checker.IsNil, check.Commentf("Could not open pty"))
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cmd := exec.Command("sh", "-c", command)
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cmd.Stdin = tty
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cmd.Stdout = tty
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cmd.Stderr = tty
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c.Assert(cmd.Start(), checker.IsNil)
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ch := make(chan error)
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go func() {
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ch <- cmd.Wait()
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close(ch)
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}()
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select {
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case <-time.After(10 * time.Second):
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c.Fatal("command timeout")
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case err := <-ch:
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c.Assert(err, checker.IsNil, check.Commentf("wait err"))
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}
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}
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checkRedirect(dockerBinary + " run -i busybox cat /etc/passwd | grep -q root")
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checkRedirect(dockerBinary + " run busybox cat /etc/passwd | grep -q root")
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}
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// Test recursive bind mount works by default
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func (s *DockerSuite) TestRunWithVolumesIsRecursive(c *check.C) {
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// /tmp gets permission denied
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testRequires(c, NotUserNamespace, SameHostDaemon)
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tmpDir, err := ioutil.TempDir("", "docker_recursive_mount_test")
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c.Assert(err, checker.IsNil)
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defer os.RemoveAll(tmpDir)
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// Create a temporary tmpfs mount.
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tmpfsDir := filepath.Join(tmpDir, "tmpfs")
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c.Assert(os.MkdirAll(tmpfsDir, 0777), checker.IsNil, check.Commentf("failed to mkdir at %s", tmpfsDir))
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c.Assert(mount.Mount("tmpfs", tmpfsDir, "tmpfs", ""), checker.IsNil, check.Commentf("failed to create a tmpfs mount at %s", tmpfsDir))
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f, err := ioutil.TempFile(tmpfsDir, "touch-me")
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c.Assert(err, checker.IsNil)
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defer f.Close()
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runCmd := exec.Command(dockerBinary, "run", "--name", "test-data", "--volume", fmt.Sprintf("%s:/tmp:ro", tmpDir), "busybox:latest", "ls", "/tmp/tmpfs")
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out, _, _, err := runCommandWithStdoutStderr(runCmd)
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c.Assert(err, checker.IsNil)
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c.Assert(out, checker.Contains, filepath.Base(f.Name()), check.Commentf("Recursive bind mount test failed. Expected file not found"))
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}
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func (s *DockerSuite) TestRunDeviceDirectory(c *check.C) {
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testRequires(c, DaemonIsLinux, NotUserNamespace, NotArm)
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if _, err := os.Stat("/dev/snd"); err != nil {
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c.Skip("Host does not have /dev/snd")
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}
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out, _ := dockerCmd(c, "run", "--device", "/dev/snd:/dev/snd", "busybox", "sh", "-c", "ls /dev/snd/")
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c.Assert(strings.Trim(out, "\r\n"), checker.Contains, "timer", check.Commentf("expected output /dev/snd/timer"))
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out, _ = dockerCmd(c, "run", "--device", "/dev/snd:/dev/othersnd", "busybox", "sh", "-c", "ls /dev/othersnd/")
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c.Assert(strings.Trim(out, "\r\n"), checker.Contains, "seq", check.Commentf("expected output /dev/othersnd/seq"))
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}
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// TestRunDetach checks attaching and detaching with the default escape sequence.
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func (s *DockerSuite) TestRunAttachDetach(c *check.C) {
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name := "attach-detach"
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dockerCmd(c, "run", "--name", name, "-itd", "busybox", "cat")
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cmd := exec.Command(dockerBinary, "attach", name)
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stdout, err := cmd.StdoutPipe()
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c.Assert(err, checker.IsNil)
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cpty, tty, err := pty.Open()
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c.Assert(err, checker.IsNil)
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defer cpty.Close()
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cmd.Stdin = tty
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c.Assert(cmd.Start(), checker.IsNil)
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c.Assert(waitRun(name), check.IsNil)
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_, err = cpty.Write([]byte("hello\n"))
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c.Assert(err, checker.IsNil)
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out, err := bufio.NewReader(stdout).ReadString('\n')
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c.Assert(err, checker.IsNil)
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c.Assert(strings.TrimSpace(out), checker.Equals, "hello")
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// escape sequence
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_, err = cpty.Write([]byte{16})
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c.Assert(err, checker.IsNil)
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time.Sleep(100 * time.Millisecond)
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_, err = cpty.Write([]byte{17})
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c.Assert(err, checker.IsNil)
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ch := make(chan struct{})
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go func() {
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cmd.Wait()
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ch <- struct{}{}
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}()
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select {
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case <-ch:
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case <-time.After(10 * time.Second):
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c.Fatal("timed out waiting for container to exit")
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}
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running := inspectField(c, name, "State.Running")
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c.Assert(running, checker.Equals, "true", check.Commentf("expected container to still be running"))
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}
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// TestRunDetach checks attaching and detaching with the escape sequence specified via flags.
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func (s *DockerSuite) TestRunAttachDetachFromFlag(c *check.C) {
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name := "attach-detach"
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keyCtrlA := []byte{1}
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keyA := []byte{97}
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dockerCmd(c, "run", "--name", name, "-itd", "busybox", "cat")
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cmd := exec.Command(dockerBinary, "attach", "--detach-keys='ctrl-a,a'", name)
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stdout, err := cmd.StdoutPipe()
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if err != nil {
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c.Fatal(err)
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}
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cpty, tty, err := pty.Open()
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if err != nil {
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c.Fatal(err)
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}
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defer cpty.Close()
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cmd.Stdin = tty
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if err := cmd.Start(); err != nil {
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c.Fatal(err)
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}
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c.Assert(waitRun(name), check.IsNil)
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if _, err := cpty.Write([]byte("hello\n")); err != nil {
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c.Fatal(err)
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}
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out, err := bufio.NewReader(stdout).ReadString('\n')
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if err != nil {
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c.Fatal(err)
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}
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if strings.TrimSpace(out) != "hello" {
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c.Fatalf("expected 'hello', got %q", out)
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}
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// escape sequence
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if _, err := cpty.Write(keyCtrlA); err != nil {
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c.Fatal(err)
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}
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time.Sleep(100 * time.Millisecond)
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if _, err := cpty.Write(keyA); err != nil {
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c.Fatal(err)
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}
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ch := make(chan struct{})
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go func() {
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cmd.Wait()
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ch <- struct{}{}
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}()
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select {
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case <-ch:
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case <-time.After(10 * time.Second):
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c.Fatal("timed out waiting for container to exit")
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}
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running := inspectField(c, name, "State.Running")
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c.Assert(running, checker.Equals, "true", check.Commentf("expected container to still be running"))
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}
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// TestRunDetach checks attaching and detaching with the escape sequence specified via flags.
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func (s *DockerSuite) TestRunAttachDetachFromInvalidFlag(c *check.C) {
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name := "attach-detach"
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dockerCmd(c, "run", "--name", name, "-itd", "busybox", "top")
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c.Assert(waitRun(name), check.IsNil)
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// specify an invalid detach key, container will ignore it and use default
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cmd := exec.Command(dockerBinary, "attach", "--detach-keys='ctrl-A,a'", name)
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stdout, err := cmd.StdoutPipe()
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if err != nil {
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c.Fatal(err)
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}
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cpty, tty, err := pty.Open()
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if err != nil {
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c.Fatal(err)
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}
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defer cpty.Close()
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cmd.Stdin = tty
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if err := cmd.Start(); err != nil {
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c.Fatal(err)
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}
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bufReader := bufio.NewReader(stdout)
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out, err := bufReader.ReadString('\n')
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if err != nil {
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c.Fatal(err)
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}
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// it should print a warning to indicate the detach key flag is invalid
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errStr := "Invalid escape keys (ctrl-A,a) provided"
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c.Assert(strings.TrimSpace(out), checker.Equals, errStr)
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}
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// TestRunDetach checks attaching and detaching with the escape sequence specified via config file.
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func (s *DockerSuite) TestRunAttachDetachFromConfig(c *check.C) {
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keyCtrlA := []byte{1}
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keyA := []byte{97}
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// Setup config
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homeKey := homedir.Key()
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homeVal := homedir.Get()
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tmpDir, err := ioutil.TempDir("", "fake-home")
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c.Assert(err, checker.IsNil)
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defer os.RemoveAll(tmpDir)
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dotDocker := filepath.Join(tmpDir, ".docker")
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os.Mkdir(dotDocker, 0600)
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tmpCfg := filepath.Join(dotDocker, "config.json")
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defer func() { os.Setenv(homeKey, homeVal) }()
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os.Setenv(homeKey, tmpDir)
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data := `{
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"detachKeys": "ctrl-a,a"
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}`
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err = ioutil.WriteFile(tmpCfg, []byte(data), 0600)
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c.Assert(err, checker.IsNil)
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// Then do the work
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name := "attach-detach"
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dockerCmd(c, "run", "--name", name, "-itd", "busybox", "cat")
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cmd := exec.Command(dockerBinary, "attach", name)
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stdout, err := cmd.StdoutPipe()
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if err != nil {
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c.Fatal(err)
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}
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cpty, tty, err := pty.Open()
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if err != nil {
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c.Fatal(err)
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}
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defer cpty.Close()
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cmd.Stdin = tty
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if err := cmd.Start(); err != nil {
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c.Fatal(err)
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}
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c.Assert(waitRun(name), check.IsNil)
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if _, err := cpty.Write([]byte("hello\n")); err != nil {
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c.Fatal(err)
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}
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out, err := bufio.NewReader(stdout).ReadString('\n')
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if err != nil {
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c.Fatal(err)
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}
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if strings.TrimSpace(out) != "hello" {
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c.Fatalf("expected 'hello', got %q", out)
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}
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// escape sequence
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if _, err := cpty.Write(keyCtrlA); err != nil {
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c.Fatal(err)
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}
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time.Sleep(100 * time.Millisecond)
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if _, err := cpty.Write(keyA); err != nil {
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c.Fatal(err)
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}
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ch := make(chan struct{})
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go func() {
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cmd.Wait()
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ch <- struct{}{}
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}()
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select {
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case <-ch:
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case <-time.After(10 * time.Second):
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c.Fatal("timed out waiting for container to exit")
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}
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running := inspectField(c, name, "State.Running")
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c.Assert(running, checker.Equals, "true", check.Commentf("expected container to still be running"))
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}
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// TestRunDetach checks attaching and detaching with the detach flags, making sure it overrides config file
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func (s *DockerSuite) TestRunAttachDetachKeysOverrideConfig(c *check.C) {
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keyCtrlA := []byte{1}
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keyA := []byte{97}
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// Setup config
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homeKey := homedir.Key()
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homeVal := homedir.Get()
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tmpDir, err := ioutil.TempDir("", "fake-home")
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c.Assert(err, checker.IsNil)
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defer os.RemoveAll(tmpDir)
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dotDocker := filepath.Join(tmpDir, ".docker")
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os.Mkdir(dotDocker, 0600)
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tmpCfg := filepath.Join(dotDocker, "config.json")
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defer func() { os.Setenv(homeKey, homeVal) }()
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os.Setenv(homeKey, tmpDir)
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data := `{
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"detachKeys": "ctrl-e,e"
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}`
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err = ioutil.WriteFile(tmpCfg, []byte(data), 0600)
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c.Assert(err, checker.IsNil)
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// Then do the work
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name := "attach-detach"
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dockerCmd(c, "run", "--name", name, "-itd", "busybox", "cat")
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cmd := exec.Command(dockerBinary, "attach", "--detach-keys='ctrl-a,a'", name)
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stdout, err := cmd.StdoutPipe()
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if err != nil {
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c.Fatal(err)
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}
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cpty, tty, err := pty.Open()
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if err != nil {
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c.Fatal(err)
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}
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defer cpty.Close()
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cmd.Stdin = tty
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if err := cmd.Start(); err != nil {
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c.Fatal(err)
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}
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c.Assert(waitRun(name), check.IsNil)
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if _, err := cpty.Write([]byte("hello\n")); err != nil {
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c.Fatal(err)
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}
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out, err := bufio.NewReader(stdout).ReadString('\n')
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if err != nil {
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c.Fatal(err)
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}
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if strings.TrimSpace(out) != "hello" {
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c.Fatalf("expected 'hello', got %q", out)
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}
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// escape sequence
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if _, err := cpty.Write(keyCtrlA); err != nil {
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c.Fatal(err)
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}
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time.Sleep(100 * time.Millisecond)
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if _, err := cpty.Write(keyA); err != nil {
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c.Fatal(err)
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}
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ch := make(chan struct{})
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go func() {
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cmd.Wait()
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ch <- struct{}{}
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}()
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select {
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case <-ch:
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case <-time.After(10 * time.Second):
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c.Fatal("timed out waiting for container to exit")
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}
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running := inspectField(c, name, "State.Running")
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c.Assert(running, checker.Equals, "true", check.Commentf("expected container to still be running"))
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}
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// "test" should be printed
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func (s *DockerSuite) TestRunWithCPUQuota(c *check.C) {
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testRequires(c, cpuCfsQuota)
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file := "/sys/fs/cgroup/cpu/cpu.cfs_quota_us"
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out, _ := dockerCmd(c, "run", "--cpu-quota", "8000", "--name", "test", "busybox", "cat", file)
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c.Assert(strings.TrimSpace(out), checker.Equals, "8000")
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out = inspectField(c, "test", "HostConfig.CpuQuota")
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c.Assert(out, checker.Equals, "8000", check.Commentf("setting the CPU CFS quota failed"))
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}
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func (s *DockerSuite) TestRunWithCpuPeriod(c *check.C) {
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testRequires(c, cpuCfsPeriod)
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file := "/sys/fs/cgroup/cpu/cpu.cfs_period_us"
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out, _ := dockerCmd(c, "run", "--cpu-period", "50000", "--name", "test", "busybox", "cat", file)
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c.Assert(strings.TrimSpace(out), checker.Equals, "50000")
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out = inspectField(c, "test", "HostConfig.CpuPeriod")
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c.Assert(out, checker.Equals, "50000", check.Commentf("setting the CPU CFS period failed"))
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}
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func (s *DockerSuite) TestRunWithKernelMemory(c *check.C) {
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testRequires(c, kernelMemorySupport)
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file := "/sys/fs/cgroup/memory/memory.kmem.limit_in_bytes"
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stdout, _, _ := dockerCmdWithStdoutStderr(c, "run", "--kernel-memory", "50M", "--name", "test1", "busybox", "cat", file)
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c.Assert(strings.TrimSpace(stdout), checker.Equals, "52428800")
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out := inspectField(c, "test1", "HostConfig.KernelMemory")
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c.Assert(out, check.Equals, "52428800")
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}
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func (s *DockerSuite) TestRunWithInvalidKernelMemory(c *check.C) {
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testRequires(c, kernelMemorySupport)
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out, _, err := dockerCmdWithError("run", "--kernel-memory", "2M", "busybox", "true")
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c.Assert(err, check.NotNil)
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expected := "Minimum kernel memory limit allowed is 4MB"
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c.Assert(out, checker.Contains, expected)
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out, _, err = dockerCmdWithError("run", "--kernel-memory", "-16m", "--name", "test2", "busybox", "echo", "test")
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c.Assert(err, check.NotNil)
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expected = "invalid size"
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c.Assert(out, checker.Contains, expected)
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}
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func (s *DockerSuite) TestRunWithCPUShares(c *check.C) {
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testRequires(c, cpuShare)
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file := "/sys/fs/cgroup/cpu/cpu.shares"
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out, _ := dockerCmd(c, "run", "--cpu-shares", "1000", "--name", "test", "busybox", "cat", file)
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c.Assert(strings.TrimSpace(out), checker.Equals, "1000")
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out = inspectField(c, "test", "HostConfig.CPUShares")
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c.Assert(out, check.Equals, "1000")
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}
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// "test" should be printed
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func (s *DockerSuite) TestRunEchoStdoutWithCPUSharesAndMemoryLimit(c *check.C) {
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testRequires(c, cpuShare)
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testRequires(c, memoryLimitSupport)
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out, _, _ := dockerCmdWithStdoutStderr(c, "run", "--cpu-shares", "1000", "-m", "32m", "busybox", "echo", "test")
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c.Assert(out, checker.Equals, "test\n", check.Commentf("container should've printed 'test'"))
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}
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func (s *DockerSuite) TestRunWithCpusetCpus(c *check.C) {
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testRequires(c, cgroupCpuset)
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file := "/sys/fs/cgroup/cpuset/cpuset.cpus"
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out, _ := dockerCmd(c, "run", "--cpuset-cpus", "0", "--name", "test", "busybox", "cat", file)
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c.Assert(strings.TrimSpace(out), checker.Equals, "0")
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out = inspectField(c, "test", "HostConfig.CpusetCpus")
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c.Assert(out, check.Equals, "0")
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|
}
|
|
|
|
func (s *DockerSuite) TestRunWithCpusetMems(c *check.C) {
|
|
testRequires(c, cgroupCpuset)
|
|
|
|
file := "/sys/fs/cgroup/cpuset/cpuset.mems"
|
|
out, _ := dockerCmd(c, "run", "--cpuset-mems", "0", "--name", "test", "busybox", "cat", file)
|
|
c.Assert(strings.TrimSpace(out), checker.Equals, "0")
|
|
|
|
out = inspectField(c, "test", "HostConfig.CpusetMems")
|
|
c.Assert(out, check.Equals, "0")
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithBlkioWeight(c *check.C) {
|
|
testRequires(c, blkioWeight)
|
|
|
|
file := "/sys/fs/cgroup/blkio/blkio.weight"
|
|
out, _ := dockerCmd(c, "run", "--blkio-weight", "300", "--name", "test", "busybox", "cat", file)
|
|
c.Assert(strings.TrimSpace(out), checker.Equals, "300")
|
|
|
|
out = inspectField(c, "test", "HostConfig.BlkioWeight")
|
|
c.Assert(out, check.Equals, "300")
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithInvalidBlkioWeight(c *check.C) {
|
|
testRequires(c, blkioWeight)
|
|
out, _, err := dockerCmdWithError("run", "--blkio-weight", "5", "busybox", "true")
|
|
c.Assert(err, check.NotNil, check.Commentf(out))
|
|
expected := "Range of blkio weight is from 10 to 1000"
|
|
c.Assert(out, checker.Contains, expected)
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithInvalidPathforBlkioWeightDevice(c *check.C) {
|
|
testRequires(c, blkioWeight)
|
|
out, _, err := dockerCmdWithError("run", "--blkio-weight-device", "/dev/sdX:100", "busybox", "true")
|
|
c.Assert(err, check.NotNil, check.Commentf(out))
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithInvalidPathforBlkioDeviceReadBps(c *check.C) {
|
|
testRequires(c, blkioWeight)
|
|
out, _, err := dockerCmdWithError("run", "--device-read-bps", "/dev/sdX:500", "busybox", "true")
|
|
c.Assert(err, check.NotNil, check.Commentf(out))
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithInvalidPathforBlkioDeviceWriteBps(c *check.C) {
|
|
testRequires(c, blkioWeight)
|
|
out, _, err := dockerCmdWithError("run", "--device-write-bps", "/dev/sdX:500", "busybox", "true")
|
|
c.Assert(err, check.NotNil, check.Commentf(out))
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithInvalidPathforBlkioDeviceReadIOps(c *check.C) {
|
|
testRequires(c, blkioWeight)
|
|
out, _, err := dockerCmdWithError("run", "--device-read-iops", "/dev/sdX:500", "busybox", "true")
|
|
c.Assert(err, check.NotNil, check.Commentf(out))
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithInvalidPathforBlkioDeviceWriteIOps(c *check.C) {
|
|
testRequires(c, blkioWeight)
|
|
out, _, err := dockerCmdWithError("run", "--device-write-iops", "/dev/sdX:500", "busybox", "true")
|
|
c.Assert(err, check.NotNil, check.Commentf(out))
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunOOMExitCode(c *check.C) {
|
|
testRequires(c, oomControl)
|
|
errChan := make(chan error)
|
|
go func() {
|
|
defer close(errChan)
|
|
//changing memory to 40MB from 4MB due to an issue with GCCGO that test fails to start the container.
|
|
out, exitCode, _ := dockerCmdWithError("run", "-m", "40MB", "busybox", "sh", "-c", "x=a; while true; do x=$x$x$x$x; done")
|
|
if expected := 137; exitCode != expected {
|
|
errChan <- fmt.Errorf("wrong exit code for OOM container: expected %d, got %d (output: %q)", expected, exitCode, out)
|
|
}
|
|
}()
|
|
|
|
select {
|
|
case err := <-errChan:
|
|
c.Assert(err, check.IsNil)
|
|
case <-time.After(600 * time.Second):
|
|
c.Fatal("Timeout waiting for container to die on OOM")
|
|
}
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithMemoryLimit(c *check.C) {
|
|
testRequires(c, memoryLimitSupport)
|
|
|
|
file := "/sys/fs/cgroup/memory/memory.limit_in_bytes"
|
|
stdout, _, _ := dockerCmdWithStdoutStderr(c, "run", "-m", "32M", "--name", "test", "busybox", "cat", file)
|
|
c.Assert(strings.TrimSpace(stdout), checker.Equals, "33554432")
|
|
|
|
out := inspectField(c, "test", "HostConfig.Memory")
|
|
c.Assert(out, check.Equals, "33554432")
|
|
}
|
|
|
|
// TestRunWithoutMemoryswapLimit sets memory limit and disables swap
|
|
// memory limit, this means the processes in the container can use
|
|
// 16M memory and as much swap memory as they need (if the host
|
|
// supports swap memory).
|
|
func (s *DockerSuite) TestRunWithoutMemoryswapLimit(c *check.C) {
|
|
testRequires(c, DaemonIsLinux)
|
|
testRequires(c, memoryLimitSupport)
|
|
testRequires(c, swapMemorySupport)
|
|
dockerCmd(c, "run", "-m", "32m", "--memory-swap", "-1", "busybox", "true")
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithSwappiness(c *check.C) {
|
|
testRequires(c, memorySwappinessSupport)
|
|
file := "/sys/fs/cgroup/memory/memory.swappiness"
|
|
out, _ := dockerCmd(c, "run", "--memory-swappiness", "0", "--name", "test", "busybox", "cat", file)
|
|
c.Assert(strings.TrimSpace(out), checker.Equals, "0")
|
|
|
|
out = inspectField(c, "test", "HostConfig.MemorySwappiness")
|
|
c.Assert(out, check.Equals, "0")
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithSwappinessInvalid(c *check.C) {
|
|
testRequires(c, memorySwappinessSupport)
|
|
out, _, err := dockerCmdWithError("run", "--memory-swappiness", "101", "busybox", "true")
|
|
c.Assert(err, check.NotNil)
|
|
expected := "Valid memory swappiness range is 0-100"
|
|
c.Assert(out, checker.Contains, expected, check.Commentf("Expected output to contain %q, not %q", out, expected))
|
|
|
|
out, _, err = dockerCmdWithError("run", "--memory-swappiness", "-10", "busybox", "true")
|
|
c.Assert(err, check.NotNil)
|
|
c.Assert(out, checker.Contains, expected, check.Commentf("Expected output to contain %q, not %q", out, expected))
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithMemoryReservation(c *check.C) {
|
|
testRequires(c, memoryReservationSupport)
|
|
|
|
file := "/sys/fs/cgroup/memory/memory.soft_limit_in_bytes"
|
|
out, _ := dockerCmd(c, "run", "--memory-reservation", "200M", "--name", "test", "busybox", "cat", file)
|
|
c.Assert(strings.TrimSpace(out), checker.Equals, "209715200")
|
|
|
|
out = inspectField(c, "test", "HostConfig.MemoryReservation")
|
|
c.Assert(out, check.Equals, "209715200")
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithMemoryReservationInvalid(c *check.C) {
|
|
testRequires(c, memoryLimitSupport)
|
|
testRequires(c, memoryReservationSupport)
|
|
out, _, err := dockerCmdWithError("run", "-m", "500M", "--memory-reservation", "800M", "busybox", "true")
|
|
c.Assert(err, check.NotNil)
|
|
expected := "Minimum memory limit should be larger than memory reservation limit"
|
|
c.Assert(strings.TrimSpace(out), checker.Contains, expected, check.Commentf("run container should fail with invalid memory reservation"))
|
|
|
|
out, _, err = dockerCmdWithError("run", "--memory-reservation", "1k", "busybox", "true")
|
|
c.Assert(err, check.NotNil)
|
|
expected = "Minimum memory reservation allowed is 4MB"
|
|
c.Assert(strings.TrimSpace(out), checker.Contains, expected, check.Commentf("run container should fail with invalid memory reservation"))
|
|
}
|
|
|
|
func (s *DockerSuite) TestStopContainerSignal(c *check.C) {
|
|
out, _ := dockerCmd(c, "run", "--stop-signal", "SIGUSR1", "-d", "busybox", "/bin/sh", "-c", `trap 'echo "exit trapped"; exit 0' USR1; while true; do sleep 1; done`)
|
|
containerID := strings.TrimSpace(out)
|
|
|
|
c.Assert(waitRun(containerID), checker.IsNil)
|
|
|
|
dockerCmd(c, "stop", containerID)
|
|
out, _ = dockerCmd(c, "logs", containerID)
|
|
|
|
c.Assert(out, checker.Contains, "exit trapped", check.Commentf("Expected `exit trapped` in the log"))
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunSwapLessThanMemoryLimit(c *check.C) {
|
|
testRequires(c, memoryLimitSupport)
|
|
testRequires(c, swapMemorySupport)
|
|
out, _, err := dockerCmdWithError("run", "-m", "16m", "--memory-swap", "15m", "busybox", "echo", "test")
|
|
expected := "Minimum memoryswap limit should be larger than memory limit"
|
|
c.Assert(err, check.NotNil)
|
|
|
|
c.Assert(out, checker.Contains, expected)
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunInvalidCpusetCpusFlagValue(c *check.C) {
|
|
testRequires(c, cgroupCpuset, SameHostDaemon)
|
|
|
|
sysInfo := sysinfo.New(true)
|
|
cpus, err := parsers.ParseUintList(sysInfo.Cpus)
|
|
c.Assert(err, check.IsNil)
|
|
var invalid int
|
|
for i := 0; i <= len(cpus)+1; i++ {
|
|
if !cpus[i] {
|
|
invalid = i
|
|
break
|
|
}
|
|
}
|
|
out, _, err := dockerCmdWithError("run", "--cpuset-cpus", strconv.Itoa(invalid), "busybox", "true")
|
|
c.Assert(err, check.NotNil)
|
|
expected := fmt.Sprintf("Error response from daemon: Requested CPUs are not available - requested %s, available: %s", strconv.Itoa(invalid), sysInfo.Cpus)
|
|
c.Assert(out, checker.Contains, expected)
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunInvalidCpusetMemsFlagValue(c *check.C) {
|
|
testRequires(c, cgroupCpuset)
|
|
|
|
sysInfo := sysinfo.New(true)
|
|
mems, err := parsers.ParseUintList(sysInfo.Mems)
|
|
c.Assert(err, check.IsNil)
|
|
var invalid int
|
|
for i := 0; i <= len(mems)+1; i++ {
|
|
if !mems[i] {
|
|
invalid = i
|
|
break
|
|
}
|
|
}
|
|
out, _, err := dockerCmdWithError("run", "--cpuset-mems", strconv.Itoa(invalid), "busybox", "true")
|
|
c.Assert(err, check.NotNil)
|
|
expected := fmt.Sprintf("Error response from daemon: Requested memory nodes are not available - requested %s, available: %s", strconv.Itoa(invalid), sysInfo.Mems)
|
|
c.Assert(out, checker.Contains, expected)
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunInvalidCPUShares(c *check.C) {
|
|
testRequires(c, cpuShare, DaemonIsLinux)
|
|
out, _, err := dockerCmdWithError("run", "--cpu-shares", "1", "busybox", "echo", "test")
|
|
c.Assert(err, check.NotNil, check.Commentf(out))
|
|
expected := "The minimum allowed cpu-shares is 2"
|
|
c.Assert(out, checker.Contains, expected)
|
|
|
|
out, _, err = dockerCmdWithError("run", "--cpu-shares", "-1", "busybox", "echo", "test")
|
|
c.Assert(err, check.NotNil, check.Commentf(out))
|
|
expected = "shares: invalid argument"
|
|
c.Assert(out, checker.Contains, expected)
|
|
|
|
out, _, err = dockerCmdWithError("run", "--cpu-shares", "99999999", "busybox", "echo", "test")
|
|
c.Assert(err, check.NotNil, check.Commentf(out))
|
|
expected = "The maximum allowed cpu-shares is"
|
|
c.Assert(out, checker.Contains, expected)
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithDefaultShmSize(c *check.C) {
|
|
testRequires(c, DaemonIsLinux)
|
|
|
|
name := "shm-default"
|
|
out, _ := dockerCmd(c, "run", "--name", name, "busybox", "mount")
|
|
shmRegex := regexp.MustCompile(`shm on /dev/shm type tmpfs(.*)size=65536k`)
|
|
if !shmRegex.MatchString(out) {
|
|
c.Fatalf("Expected shm of 64MB in mount command, got %v", out)
|
|
}
|
|
shmSize := inspectField(c, name, "HostConfig.ShmSize")
|
|
c.Assert(shmSize, check.Equals, "67108864")
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunWithShmSize(c *check.C) {
|
|
testRequires(c, DaemonIsLinux)
|
|
|
|
name := "shm"
|
|
out, _ := dockerCmd(c, "run", "--name", name, "--shm-size=1G", "busybox", "mount")
|
|
shmRegex := regexp.MustCompile(`shm on /dev/shm type tmpfs(.*)size=1048576k`)
|
|
if !shmRegex.MatchString(out) {
|
|
c.Fatalf("Expected shm of 1GB in mount command, got %v", out)
|
|
}
|
|
shmSize := inspectField(c, name, "HostConfig.ShmSize")
|
|
c.Assert(shmSize, check.Equals, "1073741824")
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunTmpfsMounts(c *check.C) {
|
|
// TODO Windows (Post TP5): This test cannot run on a Windows daemon as
|
|
// Windows does not support tmpfs mounts.
|
|
testRequires(c, DaemonIsLinux)
|
|
if out, _, err := dockerCmdWithError("run", "--tmpfs", "/run", "busybox", "touch", "/run/somefile"); err != nil {
|
|
c.Fatalf("/run directory not mounted on tmpfs %q %s", err, out)
|
|
}
|
|
if out, _, err := dockerCmdWithError("run", "--tmpfs", "/run:noexec", "busybox", "touch", "/run/somefile"); err != nil {
|
|
c.Fatalf("/run directory not mounted on tmpfs %q %s", err, out)
|
|
}
|
|
if out, _, err := dockerCmdWithError("run", "--tmpfs", "/run:noexec,nosuid,rw,size=5k,mode=700", "busybox", "touch", "/run/somefile"); err != nil {
|
|
c.Fatalf("/run failed to mount on tmpfs with valid options %q %s", err, out)
|
|
}
|
|
if _, _, err := dockerCmdWithError("run", "--tmpfs", "/run:foobar", "busybox", "touch", "/run/somefile"); err == nil {
|
|
c.Fatalf("/run mounted on tmpfs when it should have vailed within invalid mount option")
|
|
}
|
|
if _, _, err := dockerCmdWithError("run", "--tmpfs", "/run", "-v", "/run:/run", "busybox", "touch", "/run/somefile"); err == nil {
|
|
c.Fatalf("Should have generated an error saying Duplicate mount points")
|
|
}
|
|
}
|
|
|
|
// TestRunSeccompProfileDenyUnshare checks that 'docker run --security-opt seccomp=/tmp/profile.json debian:jessie unshare' exits with operation not permitted.
|
|
func (s *DockerSuite) TestRunSeccompProfileDenyUnshare(c *check.C) {
|
|
testRequires(c, SameHostDaemon, seccompEnabled, NotArm, Apparmor)
|
|
jsonData := `{
|
|
"defaultAction": "SCMP_ACT_ALLOW",
|
|
"syscalls": [
|
|
{
|
|
"name": "unshare",
|
|
"action": "SCMP_ACT_ERRNO"
|
|
}
|
|
]
|
|
}`
|
|
tmpFile, err := ioutil.TempFile("", "profile.json")
|
|
defer tmpFile.Close()
|
|
if err != nil {
|
|
c.Fatal(err)
|
|
}
|
|
|
|
if _, err := tmpFile.Write([]byte(jsonData)); err != nil {
|
|
c.Fatal(err)
|
|
}
|
|
runCmd := exec.Command(dockerBinary, "run", "--security-opt", "apparmor=unconfined", "--security-opt", "seccomp="+tmpFile.Name(), "debian:jessie", "unshare", "-p", "-m", "-f", "-r", "mount", "-t", "proc", "none", "/proc")
|
|
out, _, _ := runCommandWithOutput(runCmd)
|
|
if !strings.Contains(out, "Operation not permitted") {
|
|
c.Fatalf("expected unshare with seccomp profile denied to fail, got %s", out)
|
|
}
|
|
}
|
|
|
|
// TestRunSeccompProfileDenyChmod checks that 'docker run --security-opt seccomp=/tmp/profile.json busybox chmod 400 /etc/hostname' exits with operation not permitted.
|
|
func (s *DockerSuite) TestRunSeccompProfileDenyChmod(c *check.C) {
|
|
testRequires(c, SameHostDaemon, seccompEnabled)
|
|
jsonData := `{
|
|
"defaultAction": "SCMP_ACT_ALLOW",
|
|
"syscalls": [
|
|
{
|
|
"name": "chmod",
|
|
"action": "SCMP_ACT_ERRNO"
|
|
}
|
|
]
|
|
}`
|
|
tmpFile, err := ioutil.TempFile("", "profile.json")
|
|
defer tmpFile.Close()
|
|
if err != nil {
|
|
c.Fatal(err)
|
|
}
|
|
|
|
if _, err := tmpFile.Write([]byte(jsonData)); err != nil {
|
|
c.Fatal(err)
|
|
}
|
|
runCmd := exec.Command(dockerBinary, "run", "--security-opt", "seccomp="+tmpFile.Name(), "busybox", "chmod", "400", "/etc/hostname")
|
|
out, _, _ := runCommandWithOutput(runCmd)
|
|
if !strings.Contains(out, "Operation not permitted") {
|
|
c.Fatalf("expected chmod with seccomp profile denied to fail, got %s", out)
|
|
}
|
|
}
|
|
|
|
// TestRunSeccompProfileDenyUnshareUserns checks that 'docker run debian:jessie unshare --map-root-user --user sh -c whoami' with a specific profile to
|
|
// deny unhare of a userns exits with operation not permitted.
|
|
func (s *DockerSuite) TestRunSeccompProfileDenyUnshareUserns(c *check.C) {
|
|
testRequires(c, SameHostDaemon, seccompEnabled, NotArm, Apparmor)
|
|
// from sched.h
|
|
jsonData := fmt.Sprintf(`{
|
|
"defaultAction": "SCMP_ACT_ALLOW",
|
|
"syscalls": [
|
|
{
|
|
"name": "unshare",
|
|
"action": "SCMP_ACT_ERRNO",
|
|
"args": [
|
|
{
|
|
"index": 0,
|
|
"value": %d,
|
|
"op": "SCMP_CMP_EQ"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}`, uint64(0x10000000))
|
|
tmpFile, err := ioutil.TempFile("", "profile.json")
|
|
defer tmpFile.Close()
|
|
if err != nil {
|
|
c.Fatal(err)
|
|
}
|
|
|
|
if _, err := tmpFile.Write([]byte(jsonData)); err != nil {
|
|
c.Fatal(err)
|
|
}
|
|
runCmd := exec.Command(dockerBinary, "run", "--security-opt", "apparmor=unconfined", "--security-opt", "seccomp="+tmpFile.Name(), "debian:jessie", "unshare", "--map-root-user", "--user", "sh", "-c", "whoami")
|
|
out, _, _ := runCommandWithOutput(runCmd)
|
|
if !strings.Contains(out, "Operation not permitted") {
|
|
c.Fatalf("expected unshare userns with seccomp profile denied to fail, got %s", out)
|
|
}
|
|
}
|
|
|
|
// TestRunSeccompProfileDenyCloneUserns checks that 'docker run syscall-test'
|
|
// with a the default seccomp profile exits with operation not permitted.
|
|
func (s *DockerSuite) TestRunSeccompProfileDenyCloneUserns(c *check.C) {
|
|
testRequires(c, SameHostDaemon, seccompEnabled)
|
|
|
|
runCmd := exec.Command(dockerBinary, "run", "syscall-test", "userns-test", "id")
|
|
out, _, err := runCommandWithOutput(runCmd)
|
|
if err == nil || !strings.Contains(out, "clone failed: Operation not permitted") {
|
|
c.Fatalf("expected clone userns with default seccomp profile denied to fail, got %s: %v", out, err)
|
|
}
|
|
}
|
|
|
|
// TestRunSeccompUnconfinedCloneUserns checks that
|
|
// 'docker run --security-opt seccomp=unconfined syscall-test' allows creating a userns.
|
|
func (s *DockerSuite) TestRunSeccompUnconfinedCloneUserns(c *check.C) {
|
|
testRequires(c, SameHostDaemon, seccompEnabled, UserNamespaceInKernel, NotUserNamespace)
|
|
|
|
// make sure running w privileged is ok
|
|
runCmd := exec.Command(dockerBinary, "run", "--security-opt", "seccomp=unconfined", "syscall-test", "userns-test", "id")
|
|
if out, _, err := runCommandWithOutput(runCmd); err != nil || !strings.Contains(out, "nobody") {
|
|
c.Fatalf("expected clone userns with --security-opt seccomp=unconfined to succeed, got %s: %v", out, err)
|
|
}
|
|
}
|
|
|
|
// TestRunSeccompAllowPrivCloneUserns checks that 'docker run --privileged syscall-test'
|
|
// allows creating a userns.
|
|
func (s *DockerSuite) TestRunSeccompAllowPrivCloneUserns(c *check.C) {
|
|
testRequires(c, SameHostDaemon, seccompEnabled, UserNamespaceInKernel, NotUserNamespace)
|
|
|
|
// make sure running w privileged is ok
|
|
runCmd := exec.Command(dockerBinary, "run", "--privileged", "syscall-test", "userns-test", "id")
|
|
if out, _, err := runCommandWithOutput(runCmd); err != nil || !strings.Contains(out, "nobody") {
|
|
c.Fatalf("expected clone userns with --privileged to succeed, got %s: %v", out, err)
|
|
}
|
|
}
|
|
|
|
// TestRunSeccompAllowSetrlimit checks that 'docker run debian:jessie ulimit -v 1048510' succeeds.
|
|
func (s *DockerSuite) TestRunSeccompAllowSetrlimit(c *check.C) {
|
|
testRequires(c, SameHostDaemon, seccompEnabled)
|
|
|
|
// ulimit uses setrlimit, so we want to make sure we don't break it
|
|
runCmd := exec.Command(dockerBinary, "run", "debian:jessie", "bash", "-c", "ulimit -v 1048510")
|
|
if out, _, err := runCommandWithOutput(runCmd); err != nil {
|
|
c.Fatalf("expected ulimit with seccomp to succeed, got %s: %v", out, err)
|
|
}
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunSeccompDefaultProfile(c *check.C) {
|
|
testRequires(c, SameHostDaemon, seccompEnabled, NotUserNamespace)
|
|
|
|
var group sync.WaitGroup
|
|
group.Add(4)
|
|
errChan := make(chan error, 4)
|
|
go func() {
|
|
out, _, err := dockerCmdWithError("run", "--cap-add", "ALL", "syscall-test", "acct-test")
|
|
if err == nil || !strings.Contains(out, "Operation not permitted") {
|
|
errChan <- fmt.Errorf("expected Operation not permitted, got: %s", out)
|
|
}
|
|
group.Done()
|
|
}()
|
|
|
|
go func() {
|
|
out, _, err := dockerCmdWithError("run", "--cap-add", "ALL", "syscall-test", "ns-test", "echo", "hello")
|
|
if err == nil || !strings.Contains(out, "Operation not permitted") {
|
|
errChan <- fmt.Errorf("expected Operation not permitted, got: %s", out)
|
|
}
|
|
group.Done()
|
|
}()
|
|
|
|
go func() {
|
|
out, _, err := dockerCmdWithError("run", "--cap-add", "ALL", "--security-opt", "seccomp=unconfined", "syscall-test", "acct-test")
|
|
if err == nil || !strings.Contains(out, "No such file or directory") {
|
|
errChan <- fmt.Errorf("expected No such file or directory, got: %s", out)
|
|
}
|
|
group.Done()
|
|
}()
|
|
|
|
go func() {
|
|
out, _, err := dockerCmdWithError("run", "--cap-add", "ALL", "--security-opt", "seccomp=unconfined", "syscall-test", "ns-test", "echo", "hello")
|
|
if err != nil || !strings.Contains(out, "hello") {
|
|
errChan <- fmt.Errorf("expected hello, got: %s, %v", out, err)
|
|
}
|
|
group.Done()
|
|
}()
|
|
|
|
group.Wait()
|
|
close(errChan)
|
|
|
|
for err := range errChan {
|
|
c.Assert(err, checker.IsNil)
|
|
}
|
|
}
|
|
|
|
// TestRunNoNewPrivSetuid checks that --security-opt=no-new-privileges prevents
|
|
// effective uid transtions on executing setuid binaries.
|
|
func (s *DockerSuite) TestRunNoNewPrivSetuid(c *check.C) {
|
|
testRequires(c, DaemonIsLinux, NotUserNamespace, SameHostDaemon)
|
|
|
|
// test that running a setuid binary results in no effective uid transition
|
|
runCmd := exec.Command(dockerBinary, "run", "--security-opt", "no-new-privileges", "--user", "1000", "nnp-test", "/usr/bin/nnp-test")
|
|
if out, _, err := runCommandWithOutput(runCmd); err != nil || !strings.Contains(out, "EUID=1000") {
|
|
c.Fatalf("expected output to contain EUID=1000, got %s: %v", out, err)
|
|
}
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunApparmorProcDirectory(c *check.C) {
|
|
testRequires(c, SameHostDaemon, Apparmor)
|
|
|
|
// running w seccomp unconfined tests the apparmor profile
|
|
runCmd := exec.Command(dockerBinary, "run", "--security-opt", "seccomp=unconfined", "busybox", "chmod", "777", "/proc/1/cgroup")
|
|
if out, _, err := runCommandWithOutput(runCmd); err == nil || !(strings.Contains(out, "Permission denied") || strings.Contains(out, "Operation not permitted")) {
|
|
c.Fatalf("expected chmod 777 /proc/1/cgroup to fail, got %s: %v", out, err)
|
|
}
|
|
|
|
runCmd = exec.Command(dockerBinary, "run", "--security-opt", "seccomp=unconfined", "busybox", "chmod", "777", "/proc/1/attr/current")
|
|
if out, _, err := runCommandWithOutput(runCmd); err == nil || !(strings.Contains(out, "Permission denied") || strings.Contains(out, "Operation not permitted")) {
|
|
c.Fatalf("expected chmod 777 /proc/1/attr/current to fail, got %s: %v", out, err)
|
|
}
|
|
}
|
|
|
|
// make sure the default profile can be successfully parsed (using unshare as it is
|
|
// something which we know is blocked in the default profile)
|
|
func (s *DockerSuite) TestRunSeccompWithDefaultProfile(c *check.C) {
|
|
testRequires(c, SameHostDaemon, seccompEnabled)
|
|
|
|
out, _, err := dockerCmdWithError("run", "--security-opt", "seccomp=../profiles/seccomp/default.json", "debian:jessie", "unshare", "--map-root-user", "--user", "sh", "-c", "whoami")
|
|
c.Assert(err, checker.NotNil, check.Commentf(out))
|
|
c.Assert(strings.TrimSpace(out), checker.Equals, "unshare: unshare failed: Operation not permitted")
|
|
}
|
|
|
|
// TestRunDeviceSymlink checks run with device that follows symlink (#13840)
|
|
func (s *DockerSuite) TestRunDeviceSymlink(c *check.C) {
|
|
testRequires(c, DaemonIsLinux, NotUserNamespace, NotArm, SameHostDaemon)
|
|
if _, err := os.Stat("/dev/zero"); err != nil {
|
|
c.Skip("Host does not have /dev/zero")
|
|
}
|
|
|
|
// Create a temporary directory to create symlink
|
|
tmpDir, err := ioutil.TempDir("", "docker_device_follow_symlink_tests")
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
defer os.RemoveAll(tmpDir)
|
|
|
|
// Create a symbolic link to /dev/zero
|
|
symZero := filepath.Join(tmpDir, "zero")
|
|
err = os.Symlink("/dev/zero", symZero)
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
// Create a temporary file "temp" inside tmpDir, write some data to "tmpDir/temp",
|
|
// then create a symlink "tmpDir/file" to the temporary file "tmpDir/temp".
|
|
tmpFile := filepath.Join(tmpDir, "temp")
|
|
err = ioutil.WriteFile(tmpFile, []byte("temp"), 0666)
|
|
c.Assert(err, checker.IsNil)
|
|
symFile := filepath.Join(tmpDir, "file")
|
|
err = os.Symlink(tmpFile, symFile)
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
// md5sum of 'dd if=/dev/zero bs=4K count=8' is bb7df04e1b0a2570657527a7e108ae23
|
|
out, _ := dockerCmd(c, "run", "--device", symZero+":/dev/symzero", "busybox", "sh", "-c", "dd if=/dev/symzero bs=4K count=8 | md5sum")
|
|
c.Assert(strings.Trim(out, "\r\n"), checker.Contains, "bb7df04e1b0a2570657527a7e108ae23", check.Commentf("expected output bb7df04e1b0a2570657527a7e108ae23"))
|
|
|
|
// symlink "tmpDir/file" to a file "tmpDir/temp" will result in an error as it is not a device.
|
|
out, _, err = dockerCmdWithError("run", "--device", symFile+":/dev/symzero", "busybox", "sh", "-c", "dd if=/dev/symzero bs=4K count=8 | md5sum")
|
|
c.Assert(err, check.NotNil)
|
|
c.Assert(strings.Trim(out, "\r\n"), checker.Contains, "not a device node", check.Commentf("expected output 'not a device node'"))
|
|
}
|
|
|
|
// TestRunPidsLimit makes sure the pids cgroup is set with --pids-limit
|
|
func (s *DockerSuite) TestRunPidsLimit(c *check.C) {
|
|
testRequires(c, pidsLimit)
|
|
|
|
file := "/sys/fs/cgroup/pids/pids.max"
|
|
out, _ := dockerCmd(c, "run", "--name", "skittles", "--pids-limit", "2", "busybox", "cat", file)
|
|
c.Assert(strings.TrimSpace(out), checker.Equals, "2")
|
|
|
|
out = inspectField(c, "skittles", "HostConfig.PidsLimit")
|
|
c.Assert(out, checker.Equals, "2", check.Commentf("setting the pids limit failed"))
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunPrivilegedAllowedDevices(c *check.C) {
|
|
testRequires(c, DaemonIsLinux, NotUserNamespace)
|
|
|
|
file := "/sys/fs/cgroup/devices/devices.list"
|
|
out, _ := dockerCmd(c, "run", "--privileged", "busybox", "cat", file)
|
|
c.Logf("out: %q", out)
|
|
c.Assert(strings.TrimSpace(out), checker.Equals, "a *:* rwm")
|
|
}
|
|
|
|
func (s *DockerSuite) TestRunUserDeviceAllowed(c *check.C) {
|
|
testRequires(c, DaemonIsLinux)
|
|
|
|
fi, err := os.Stat("/dev/snd/timer")
|
|
if err != nil {
|
|
c.Skip("Host does not have /dev/snd/timer")
|
|
}
|
|
stat, ok := fi.Sys().(*syscall.Stat_t)
|
|
if !ok {
|
|
c.Skip("Could not stat /dev/snd/timer")
|
|
}
|
|
|
|
file := "/sys/fs/cgroup/devices/devices.list"
|
|
out, _ := dockerCmd(c, "run", "--device", "/dev/snd/timer:w", "busybox", "cat", file)
|
|
c.Assert(out, checker.Contains, fmt.Sprintf("c %d:%d w", stat.Rdev/256, stat.Rdev%256))
|
|
}
|