// +build !windows package main import ( "bufio" "fmt" "io/ioutil" "os" "os/exec" "path/filepath" "regexp" "strconv" "strings" "time" "github.com/docker/docker/pkg/integration/checker" "github.com/docker/docker/pkg/mount" "github.com/docker/docker/pkg/parsers" "github.com/docker/docker/pkg/sysinfo" "github.com/go-check/check" "github.com/kr/pty" ) // #6509 func (s *DockerSuite) TestRunRedirectStdout(c *check.C) { checkRedirect := func(command string) { _, tty, err := pty.Open() c.Assert(err, checker.IsNil, check.Commentf("Could not open pty")) cmd := exec.Command("sh", "-c", command) cmd.Stdin = tty cmd.Stdout = tty cmd.Stderr = tty c.Assert(cmd.Start(), checker.IsNil) ch := make(chan error) go func() { ch <- cmd.Wait() close(ch) }() select { case <-time.After(10 * time.Second): c.Fatal("command timeout") case err := <-ch: c.Assert(err, checker.IsNil, check.Commentf("wait err")) } } checkRedirect(dockerBinary + " run -i busybox cat /etc/passwd | grep -q root") checkRedirect(dockerBinary + " run busybox cat /etc/passwd | grep -q root") } // Test recursive bind mount works by default func (s *DockerSuite) TestRunWithVolumesIsRecursive(c *check.C) { // /tmp gets permission denied testRequires(c, NotUserNamespace) tmpDir, err := ioutil.TempDir("", "docker_recursive_mount_test") c.Assert(err, checker.IsNil) defer os.RemoveAll(tmpDir) // Create a temporary tmpfs mount. tmpfsDir := filepath.Join(tmpDir, "tmpfs") c.Assert(os.MkdirAll(tmpfsDir, 0777), checker.IsNil, check.Commentf("failed to mkdir at %s", tmpfsDir)) c.Assert(mount.Mount("tmpfs", tmpfsDir, "tmpfs", ""), checker.IsNil, check.Commentf("failed to create a tmpfs mount at %s", tmpfsDir)) f, err := ioutil.TempFile(tmpfsDir, "touch-me") c.Assert(err, checker.IsNil) defer f.Close() runCmd := exec.Command(dockerBinary, "run", "--name", "test-data", "--volume", fmt.Sprintf("%s:/tmp:ro", tmpDir), "busybox:latest", "ls", "/tmp/tmpfs") out, _, _, err := runCommandWithStdoutStderr(runCmd) c.Assert(err, checker.IsNil) c.Assert(out, checker.Contains, filepath.Base(f.Name()), check.Commentf("Recursive bind mount test failed. Expected file not found")) } func (s *DockerSuite) TestRunDeviceDirectory(c *check.C) { testRequires(c, DaemonIsLinux, NotUserNamespace) if _, err := os.Stat("/dev/snd"); err != nil { c.Skip("Host does not have /dev/snd") } out, _ := dockerCmd(c, "run", "--device", "/dev/snd:/dev/snd", "busybox", "sh", "-c", "ls /dev/snd/") c.Assert(strings.Trim(out, "\r\n"), checker.Contains, "timer", check.Commentf("expected output /dev/snd/timer")) out, _ = dockerCmd(c, "run", "--device", "/dev/snd:/dev/othersnd", "busybox", "sh", "-c", "ls /dev/othersnd/") c.Assert(strings.Trim(out, "\r\n"), checker.Contains, "seq", check.Commentf("expected output /dev/othersnd/seq")) } // TestRunDetach checks attaching and detaching with the escape sequence. func (s *DockerSuite) TestRunAttachDetach(c *check.C) { name := "attach-detach" cmd := exec.Command(dockerBinary, "run", "--name", name, "-it", "busybox", "cat") stdout, err := cmd.StdoutPipe() c.Assert(err, checker.IsNil) cpty, tty, err := pty.Open() c.Assert(err, checker.IsNil) defer cpty.Close() cmd.Stdin = tty c.Assert(cmd.Start(), checker.IsNil) c.Assert(waitRun(name), check.IsNil) _, err = cpty.Write([]byte("hello\n")) c.Assert(err, checker.IsNil) out, err := bufio.NewReader(stdout).ReadString('\n') c.Assert(err, checker.IsNil) c.Assert(strings.TrimSpace(out), checker.Equals, "hello") // escape sequence _, err = cpty.Write([]byte{16}) c.Assert(err, checker.IsNil) time.Sleep(100 * time.Millisecond) _, err = cpty.Write([]byte{17}) c.Assert(err, checker.IsNil) ch := make(chan struct{}) go func() { cmd.Wait() ch <- struct{}{} }() running, err := inspectField(name, "State.Running") c.Assert(err, checker.IsNil) c.Assert(running, checker.Equals, "true", check.Commentf("expected container to still be running")) go func() { exec.Command(dockerBinary, "kill", name).Run() }() select { case <-ch: case <-time.After(10 * time.Millisecond): c.Fatal("timed out waiting for container to exit") } } func (s *DockerSuite) TestRunWithCPUQuota(c *check.C) { testRequires(c, cpuCfsQuota) file := "/sys/fs/cgroup/cpu/cpu.cfs_quota_us" out, _ := dockerCmd(c, "run", "--cpu-quota", "8000", "--name", "test", "busybox", "cat", file) c.Assert(strings.TrimSpace(out), checker.Equals, "8000") out, err := inspectField("test", "HostConfig.CpuQuota") c.Assert(err, check.IsNil) c.Assert(out, checker.Equals, "8000", check.Commentf("setting the CPU CFS quota failed")) } func (s *DockerSuite) TestRunWithCpuPeriod(c *check.C) { testRequires(c, cpuCfsPeriod) file := "/sys/fs/cgroup/cpu/cpu.cfs_period_us" out, _ := dockerCmd(c, "run", "--cpu-period", "50000", "--name", "test", "busybox", "cat", file) c.Assert(strings.TrimSpace(out), checker.Equals, "50000") out, err := inspectField("test", "HostConfig.CpuPeriod") c.Assert(err, check.IsNil) c.Assert(out, checker.Equals, "50000", check.Commentf("setting the CPU CFS period failed")) } func (s *DockerSuite) TestRunWithKernelMemory(c *check.C) { testRequires(c, kernelMemorySupport) file := "/sys/fs/cgroup/memory/memory.kmem.limit_in_bytes" stdout, _, _ := dockerCmdWithStdoutStderr(c, "run", "--kernel-memory", "50M", "--name", "test1", "busybox", "cat", file) c.Assert(strings.TrimSpace(stdout), checker.Equals, "52428800") out, err := inspectField("test1", "HostConfig.KernelMemory") c.Assert(err, check.IsNil) c.Assert(out, check.Equals, "52428800") } func (s *DockerSuite) TestRunWithInvalidKernelMemory(c *check.C) { testRequires(c, kernelMemorySupport) out, _, err := dockerCmdWithError("run", "--kernel-memory", "2M", "busybox", "true") c.Assert(err, check.NotNil) expected := "Minimum kernel memory limit allowed is 4MB" c.Assert(out, checker.Contains, expected) out, _, err = dockerCmdWithError("run", "--kernel-memory", "-16m", "--name", "test2", "busybox", "echo", "test") c.Assert(err, check.NotNil) expected = "invalid size" c.Assert(out, checker.Contains, expected) } func (s *DockerSuite) TestRunWithCPUShares(c *check.C) { testRequires(c, cpuShare) file := "/sys/fs/cgroup/cpu/cpu.shares" out, _ := dockerCmd(c, "run", "--cpu-shares", "1000", "--name", "test", "busybox", "cat", file) c.Assert(strings.TrimSpace(out), checker.Equals, "1000") out, err := inspectField("test", "HostConfig.CPUShares") c.Assert(err, check.IsNil) c.Assert(out, check.Equals, "1000") } // "test" should be printed func (s *DockerSuite) TestRunEchoStdoutWithCPUSharesAndMemoryLimit(c *check.C) { testRequires(c, cpuShare) testRequires(c, memoryLimitSupport) out, _, _ := dockerCmdWithStdoutStderr(c, "run", "--cpu-shares", "1000", "-m", "32m", "busybox", "echo", "test") c.Assert(out, checker.Equals, "test\n", check.Commentf("container should've printed 'test'")) } func (s *DockerSuite) TestRunWithCpusetCpus(c *check.C) { testRequires(c, cgroupCpuset) file := "/sys/fs/cgroup/cpuset/cpuset.cpus" out, _ := dockerCmd(c, "run", "--cpuset-cpus", "0", "--name", "test", "busybox", "cat", file) c.Assert(strings.TrimSpace(out), checker.Equals, "0") out, err := inspectField("test", "HostConfig.CpusetCpus") c.Assert(err, check.IsNil) c.Assert(out, check.Equals, "0") } 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, err := inspectField("test", "HostConfig.CpusetMems") c.Assert(err, check.IsNil) 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, err := inspectField("test", "HostConfig.BlkioWeight") c.Assert(err, check.IsNil) 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, err := inspectField("test", "HostConfig.Memory") c.Assert(err, check.IsNil) 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, err := inspectField("test", "HostConfig.MemorySwappiness") c.Assert(err, check.IsNil) 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, err := inspectField("test", "HostConfig.MemoryReservation") c.Assert(err, check.IsNil) 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")) } 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) 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, err := inspectField(name, "HostConfig.ShmSize") c.Assert(err, check.IsNil) 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, err := inspectField(name, "HostConfig.ShmSize") c.Assert(err, check.IsNil) c.Assert(shmSize, check.Equals, "1073741824") } func (s *DockerSuite) TestRunTmpfsMounts(c *check.C) { // TODO Windows (Post TP4): 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 jess/unshare unshare' exits with operation not permitted. func (s *DockerSuite) TestRunSeccompProfileDenyUnshare(c *check.C) { testRequires(c, SameHostDaemon, seccompEnabled) 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", "seccomp:"+tmpFile.Name(), "jess/unshare", "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) } } // TestRunSeccompProfileDenyUserns checks that 'docker run jess/unshare unshare --map-root-user --user sh -c whoami' exits with operation not permitted. func (s *DockerSuite) TestRunSeccompProfileDenyUserns(c *check.C) { testRequires(c, SameHostDaemon, seccompEnabled) // 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", "seccomp:"+tmpFile.Name(), "jess/unshare", "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) } }