// +build !windows package main import ( "bufio" "context" "encoding/json" "fmt" "io/ioutil" "os" "os/exec" "path/filepath" "regexp" "strconv" "strings" "syscall" "testing" "time" "github.com/creack/pty" "github.com/docker/docker/client" "github.com/docker/docker/integration-cli/cli" "github.com/docker/docker/integration-cli/cli/build" "github.com/docker/docker/pkg/homedir" "github.com/docker/docker/pkg/parsers" "github.com/docker/docker/pkg/sysinfo" "github.com/moby/sys/mount" "gotest.tools/v3/assert" "gotest.tools/v3/icmd" ) // #6509 func (s *DockerSuite) TestRunRedirectStdout(c *testing.T) { checkRedirect := func(command string) { _, tty, err := pty.Open() assert.Assert(c, err == nil, "Could not open pty") cmd := exec.Command("sh", "-c", command) cmd.Stdin = tty cmd.Stdout = tty cmd.Stderr = tty assert.NilError(c, cmd.Start()) ch := make(chan error, 1) go func() { ch <- cmd.Wait() close(ch) }() select { case <-time.After(10 * time.Second): c.Fatal("command timeout") case err := <-ch: assert.Assert(c, err == nil, "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 *testing.T) { // /tmp gets permission denied testRequires(c, NotUserNamespace, testEnv.IsLocalDaemon) tmpDir, err := ioutil.TempDir("", "docker_recursive_mount_test") assert.NilError(c, err) defer os.RemoveAll(tmpDir) // Create a temporary tmpfs mount. tmpfsDir := filepath.Join(tmpDir, "tmpfs") assert.Assert(c, os.MkdirAll(tmpfsDir, 0777) == nil, "failed to mkdir at %s", tmpfsDir) assert.Assert(c, mount.Mount("tmpfs", tmpfsDir, "tmpfs", "") == nil, "failed to create a tmpfs mount at %s", tmpfsDir) f, err := ioutil.TempFile(tmpfsDir, "touch-me") assert.NilError(c, err) defer f.Close() out, _ := dockerCmd(c, "run", "--name", "test-data", "--volume", fmt.Sprintf("%s:/tmp:ro", tmpDir), "busybox:latest", "ls", "/tmp/tmpfs") assert.Assert(c, strings.Contains(out, filepath.Base(f.Name())), "Recursive bind mount test failed. Expected file not found") } func (s *DockerSuite) TestRunDeviceDirectory(c *testing.T) { testRequires(c, DaemonIsLinux, NotUserNamespace, NotArm) 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/") assert.Assert(c, strings.Contains(strings.Trim(out, "\r\n"), "timer"), "expected output /dev/snd/timer") out, _ = dockerCmd(c, "run", "--device", "/dev/snd:/dev/othersnd", "busybox", "sh", "-c", "ls /dev/othersnd/") assert.Assert(c, strings.Contains(strings.Trim(out, "\r\n"), "seq"), "expected output /dev/othersnd/seq") } // TestRunAttachDetach checks attaching and detaching with the default escape sequence. func (s *DockerSuite) TestRunAttachDetach(c *testing.T) { name := "attach-detach" dockerCmd(c, "run", "--name", name, "-itd", "busybox", "cat") cmd := exec.Command(dockerBinary, "attach", name) stdout, err := cmd.StdoutPipe() assert.NilError(c, err) cpty, tty, err := pty.Open() assert.NilError(c, err) defer cpty.Close() cmd.Stdin = tty assert.NilError(c, cmd.Start()) assert.Assert(c, waitRun(name) == nil) _, err = cpty.Write([]byte("hello\n")) assert.NilError(c, err) out, err := bufio.NewReader(stdout).ReadString('\n') assert.NilError(c, err) assert.Equal(c, strings.TrimSpace(out), "hello") // escape sequence _, err = cpty.Write([]byte{16}) assert.NilError(c, err) time.Sleep(100 * time.Millisecond) _, err = cpty.Write([]byte{17}) assert.NilError(c, err) ch := make(chan struct{}, 1) go func() { cmd.Wait() ch <- struct{}{} }() select { case <-ch: case <-time.After(10 * time.Second): c.Fatal("timed out waiting for container to exit") } running := inspectField(c, name, "State.Running") assert.Equal(c, running, "true", "expected container to still be running") out, _ = dockerCmd(c, "events", "--since=0", "--until", daemonUnixTime(c), "-f", "container="+name) // attach and detach event should be monitored assert.Assert(c, strings.Contains(out, "attach")) assert.Assert(c, strings.Contains(out, "detach")) } // TestRunAttachDetachFromFlag checks attaching and detaching with the escape sequence specified via flags. func (s *DockerSuite) TestRunAttachDetachFromFlag(c *testing.T) { name := "attach-detach" keyCtrlA := []byte{1} keyA := []byte{97} dockerCmd(c, "run", "--name", name, "-itd", "busybox", "cat") cmd := exec.Command(dockerBinary, "attach", "--detach-keys=ctrl-a,a", name) stdout, err := cmd.StdoutPipe() if err != nil { c.Fatal(err) } cpty, tty, err := pty.Open() if err != nil { c.Fatal(err) } defer cpty.Close() cmd.Stdin = tty if err := cmd.Start(); err != nil { c.Fatal(err) } assert.Assert(c, waitRun(name) == nil) if _, err := cpty.Write([]byte("hello\n")); err != nil { c.Fatal(err) } out, err := bufio.NewReader(stdout).ReadString('\n') if err != nil { c.Fatal(err) } if strings.TrimSpace(out) != "hello" { c.Fatalf("expected 'hello', got %q", out) } // escape sequence if _, err := cpty.Write(keyCtrlA); err != nil { c.Fatal(err) } time.Sleep(100 * time.Millisecond) if _, err := cpty.Write(keyA); err != nil { c.Fatal(err) } ch := make(chan struct{}, 1) go func() { cmd.Wait() ch <- struct{}{} }() select { case <-ch: case <-time.After(10 * time.Second): c.Fatal("timed out waiting for container to exit") } running := inspectField(c, name, "State.Running") assert.Equal(c, running, "true", "expected container to still be running") } // TestRunAttachDetachFromInvalidFlag checks attaching and detaching with the escape sequence specified via flags. func (s *DockerSuite) TestRunAttachDetachFromInvalidFlag(c *testing.T) { name := "attach-detach" dockerCmd(c, "run", "--name", name, "-itd", "busybox", "top") assert.Assert(c, waitRun(name) == nil) // specify an invalid detach key, container will ignore it and use default cmd := exec.Command(dockerBinary, "attach", "--detach-keys=ctrl-A,a", name) stdout, err := cmd.StdoutPipe() if err != nil { c.Fatal(err) } cpty, tty, err := pty.Open() if err != nil { c.Fatal(err) } defer cpty.Close() cmd.Stdin = tty if err := cmd.Start(); err != nil { c.Fatal(err) } go cmd.Wait() bufReader := bufio.NewReader(stdout) out, err := bufReader.ReadString('\n') if err != nil { c.Fatal(err) } // it should print a warning to indicate the detach key flag is invalid errStr := "Invalid detach keys (ctrl-A,a) provided" assert.Equal(c, strings.TrimSpace(out), errStr) } // TestRunAttachDetachFromConfig checks attaching and detaching with the escape sequence specified via config file. func (s *DockerSuite) TestRunAttachDetachFromConfig(c *testing.T) { keyCtrlA := []byte{1} keyA := []byte{97} // Setup config homeKey := homedir.Key() homeVal := homedir.Get() tmpDir, err := ioutil.TempDir("", "fake-home") assert.NilError(c, err) defer os.RemoveAll(tmpDir) dotDocker := filepath.Join(tmpDir, ".docker") os.Mkdir(dotDocker, 0600) tmpCfg := filepath.Join(dotDocker, "config.json") defer func() { os.Setenv(homeKey, homeVal) }() os.Setenv(homeKey, tmpDir) data := `{ "detachKeys": "ctrl-a,a" }` err = ioutil.WriteFile(tmpCfg, []byte(data), 0600) assert.NilError(c, err) // Then do the work name := "attach-detach" dockerCmd(c, "run", "--name", name, "-itd", "busybox", "cat") cmd := exec.Command(dockerBinary, "attach", name) stdout, err := cmd.StdoutPipe() if err != nil { c.Fatal(err) } cpty, tty, err := pty.Open() if err != nil { c.Fatal(err) } defer cpty.Close() cmd.Stdin = tty if err := cmd.Start(); err != nil { c.Fatal(err) } assert.Assert(c, waitRun(name) == nil) if _, err := cpty.Write([]byte("hello\n")); err != nil { c.Fatal(err) } out, err := bufio.NewReader(stdout).ReadString('\n') if err != nil { c.Fatal(err) } if strings.TrimSpace(out) != "hello" { c.Fatalf("expected 'hello', got %q", out) } // escape sequence if _, err := cpty.Write(keyCtrlA); err != nil { c.Fatal(err) } time.Sleep(100 * time.Millisecond) if _, err := cpty.Write(keyA); err != nil { c.Fatal(err) } ch := make(chan struct{}, 1) go func() { cmd.Wait() ch <- struct{}{} }() select { case <-ch: case <-time.After(10 * time.Second): c.Fatal("timed out waiting for container to exit") } running := inspectField(c, name, "State.Running") assert.Equal(c, running, "true", "expected container to still be running") } // TestRunAttachDetachKeysOverrideConfig checks attaching and detaching with the detach flags, making sure it overrides config file func (s *DockerSuite) TestRunAttachDetachKeysOverrideConfig(c *testing.T) { keyCtrlA := []byte{1} keyA := []byte{97} // Setup config homeKey := homedir.Key() homeVal := homedir.Get() tmpDir, err := ioutil.TempDir("", "fake-home") assert.NilError(c, err) defer os.RemoveAll(tmpDir) dotDocker := filepath.Join(tmpDir, ".docker") os.Mkdir(dotDocker, 0600) tmpCfg := filepath.Join(dotDocker, "config.json") defer func() { os.Setenv(homeKey, homeVal) }() os.Setenv(homeKey, tmpDir) data := `{ "detachKeys": "ctrl-e,e" }` err = ioutil.WriteFile(tmpCfg, []byte(data), 0600) assert.NilError(c, err) // Then do the work name := "attach-detach" dockerCmd(c, "run", "--name", name, "-itd", "busybox", "cat") cmd := exec.Command(dockerBinary, "attach", "--detach-keys=ctrl-a,a", name) stdout, err := cmd.StdoutPipe() if err != nil { c.Fatal(err) } cpty, tty, err := pty.Open() if err != nil { c.Fatal(err) } defer cpty.Close() cmd.Stdin = tty if err := cmd.Start(); err != nil { c.Fatal(err) } assert.Assert(c, waitRun(name) == nil) if _, err := cpty.Write([]byte("hello\n")); err != nil { c.Fatal(err) } out, err := bufio.NewReader(stdout).ReadString('\n') if err != nil { c.Fatal(err) } if strings.TrimSpace(out) != "hello" { c.Fatalf("expected 'hello', got %q", out) } // escape sequence if _, err := cpty.Write(keyCtrlA); err != nil { c.Fatal(err) } time.Sleep(100 * time.Millisecond) if _, err := cpty.Write(keyA); err != nil { c.Fatal(err) } ch := make(chan struct{}, 1) go func() { cmd.Wait() ch <- struct{}{} }() select { case <-ch: case <-time.After(10 * time.Second): c.Fatal("timed out waiting for container to exit") } running := inspectField(c, name, "State.Running") assert.Equal(c, running, "true", "expected container to still be running") } func (s *DockerSuite) TestRunAttachInvalidDetachKeySequencePreserved(c *testing.T) { name := "attach-detach" keyA := []byte{97} keyB := []byte{98} dockerCmd(c, "run", "--name", name, "-itd", "busybox", "cat") cmd := exec.Command(dockerBinary, "attach", "--detach-keys=a,b,c", name) stdout, err := cmd.StdoutPipe() if err != nil { c.Fatal(err) } cpty, tty, err := pty.Open() if err != nil { c.Fatal(err) } defer cpty.Close() cmd.Stdin = tty if err := cmd.Start(); err != nil { c.Fatal(err) } go cmd.Wait() assert.Assert(c, waitRun(name) == nil) // Invalid escape sequence aba, should print aba in output if _, err := cpty.Write(keyA); err != nil { c.Fatal(err) } time.Sleep(100 * time.Millisecond) if _, err := cpty.Write(keyB); err != nil { c.Fatal(err) } time.Sleep(100 * time.Millisecond) if _, err := cpty.Write(keyA); err != nil { c.Fatal(err) } time.Sleep(100 * time.Millisecond) if _, err := cpty.Write([]byte("\n")); err != nil { c.Fatal(err) } out, err := bufio.NewReader(stdout).ReadString('\n') if err != nil { c.Fatal(err) } if strings.TrimSpace(out) != "aba" { c.Fatalf("expected 'aba', got %q", out) } } // "test" should be printed func (s *DockerSuite) TestRunWithCPUQuota(c *testing.T) { testRequires(c, cpuCfsQuota) file := "/sys/fs/cgroup/cpu/cpu.cfs_quota_us" out, _ := dockerCmd(c, "run", "--cpu-quota", "8000", "--name", "test", "busybox", "cat", file) assert.Equal(c, strings.TrimSpace(out), "8000") out = inspectField(c, "test", "HostConfig.CpuQuota") assert.Equal(c, out, "8000", "setting the CPU CFS quota failed") } func (s *DockerSuite) TestRunWithCpuPeriod(c *testing.T) { testRequires(c, cpuCfsPeriod) file := "/sys/fs/cgroup/cpu/cpu.cfs_period_us" out, _ := dockerCmd(c, "run", "--cpu-period", "50000", "--name", "test", "busybox", "cat", file) assert.Equal(c, strings.TrimSpace(out), "50000") out, _ = dockerCmd(c, "run", "--cpu-period", "0", "busybox", "cat", file) assert.Equal(c, strings.TrimSpace(out), "100000") out = inspectField(c, "test", "HostConfig.CpuPeriod") assert.Equal(c, out, "50000", "setting the CPU CFS period failed") } func (s *DockerSuite) TestRunWithInvalidCpuPeriod(c *testing.T) { testRequires(c, cpuCfsPeriod) out, _, err := dockerCmdWithError("run", "--cpu-period", "900", "busybox", "true") assert.ErrorContains(c, err, "") expected := "CPU cfs period can not be less than 1ms (i.e. 1000) or larger than 1s (i.e. 1000000)" assert.Assert(c, strings.Contains(out, expected)) out, _, err = dockerCmdWithError("run", "--cpu-period", "2000000", "busybox", "true") assert.ErrorContains(c, err, "") assert.Assert(c, strings.Contains(out, expected)) out, _, err = dockerCmdWithError("run", "--cpu-period", "-3", "busybox", "true") assert.ErrorContains(c, err, "") assert.Assert(c, strings.Contains(out, expected)) } func (s *DockerSuite) TestRunWithKernelMemory(c *testing.T) { testRequires(c, DaemonIsLinux, kernelMemorySupport) file := "/sys/fs/cgroup/memory/memory.kmem.limit_in_bytes" cli.DockerCmd(c, "run", "--kernel-memory", "50M", "--name", "test1", "busybox", "cat", file).Assert(c, icmd.Expected{ Out: "52428800", }) cli.InspectCmd(c, "test1", cli.Format(".HostConfig.KernelMemory")).Assert(c, icmd.Expected{ Out: "52428800", }) } func (s *DockerSuite) TestRunWithInvalidKernelMemory(c *testing.T) { testRequires(c, DaemonIsLinux, kernelMemorySupport) out, _, err := dockerCmdWithError("run", "--kernel-memory", "2M", "busybox", "true") assert.ErrorContains(c, err, "") expected := "Minimum kernel memory limit allowed is 4MB" assert.Assert(c, strings.Contains(out, expected)) out, _, err = dockerCmdWithError("run", "--kernel-memory", "-16m", "--name", "test2", "busybox", "echo", "test") assert.ErrorContains(c, err, "") expected = "invalid size" assert.Assert(c, strings.Contains(out, expected)) } func (s *DockerSuite) TestRunWithCPUShares(c *testing.T) { testRequires(c, cpuShare) file := "/sys/fs/cgroup/cpu/cpu.shares" out, _ := dockerCmd(c, "run", "--cpu-shares", "1000", "--name", "test", "busybox", "cat", file) assert.Equal(c, strings.TrimSpace(out), "1000") out = inspectField(c, "test", "HostConfig.CPUShares") assert.Equal(c, out, "1000") } // "test" should be printed func (s *DockerSuite) TestRunEchoStdoutWithCPUSharesAndMemoryLimit(c *testing.T) { testRequires(c, cpuShare) testRequires(c, memoryLimitSupport) cli.DockerCmd(c, "run", "--cpu-shares", "1000", "-m", "32m", "busybox", "echo", "test").Assert(c, icmd.Expected{ Out: "test\n", }) } func (s *DockerSuite) TestRunWithCpusetCpus(c *testing.T) { testRequires(c, cgroupCpuset) file := "/sys/fs/cgroup/cpuset/cpuset.cpus" out, _ := dockerCmd(c, "run", "--cpuset-cpus", "0", "--name", "test", "busybox", "cat", file) assert.Equal(c, strings.TrimSpace(out), "0") out = inspectField(c, "test", "HostConfig.CpusetCpus") assert.Equal(c, out, "0") } func (s *DockerSuite) TestRunWithCpusetMems(c *testing.T) { testRequires(c, cgroupCpuset) file := "/sys/fs/cgroup/cpuset/cpuset.mems" out, _ := dockerCmd(c, "run", "--cpuset-mems", "0", "--name", "test", "busybox", "cat", file) assert.Equal(c, strings.TrimSpace(out), "0") out = inspectField(c, "test", "HostConfig.CpusetMems") assert.Equal(c, out, "0") } func (s *DockerSuite) TestRunWithBlkioWeight(c *testing.T) { testRequires(c, blkioWeight) file := "/sys/fs/cgroup/blkio/blkio.weight" out, _ := dockerCmd(c, "run", "--blkio-weight", "300", "--name", "test", "busybox", "cat", file) assert.Equal(c, strings.TrimSpace(out), "300") out = inspectField(c, "test", "HostConfig.BlkioWeight") assert.Equal(c, out, "300") } func (s *DockerSuite) TestRunWithInvalidBlkioWeight(c *testing.T) { testRequires(c, blkioWeight) out, _, err := dockerCmdWithError("run", "--blkio-weight", "5", "busybox", "true") assert.ErrorContains(c, err, "", out) expected := "Range of blkio weight is from 10 to 1000" assert.Assert(c, strings.Contains(out, expected)) } func (s *DockerSuite) TestRunWithInvalidPathforBlkioWeightDevice(c *testing.T) { testRequires(c, blkioWeight) out, _, err := dockerCmdWithError("run", "--blkio-weight-device", "/dev/sdX:100", "busybox", "true") assert.ErrorContains(c, err, "", out) } func (s *DockerSuite) TestRunWithInvalidPathforBlkioDeviceReadBps(c *testing.T) { testRequires(c, blkioWeight) out, _, err := dockerCmdWithError("run", "--device-read-bps", "/dev/sdX:500", "busybox", "true") assert.ErrorContains(c, err, "", out) } func (s *DockerSuite) TestRunWithInvalidPathforBlkioDeviceWriteBps(c *testing.T) { testRequires(c, blkioWeight) out, _, err := dockerCmdWithError("run", "--device-write-bps", "/dev/sdX:500", "busybox", "true") assert.ErrorContains(c, err, "", out) } func (s *DockerSuite) TestRunWithInvalidPathforBlkioDeviceReadIOps(c *testing.T) { testRequires(c, blkioWeight) out, _, err := dockerCmdWithError("run", "--device-read-iops", "/dev/sdX:500", "busybox", "true") assert.ErrorContains(c, err, "", out) } func (s *DockerSuite) TestRunWithInvalidPathforBlkioDeviceWriteIOps(c *testing.T) { testRequires(c, blkioWeight) out, _, err := dockerCmdWithError("run", "--device-write-iops", "/dev/sdX:500", "busybox", "true") assert.ErrorContains(c, err, "", out) } func (s *DockerSuite) TestRunOOMExitCode(c *testing.T) { testRequires(c, memoryLimitSupport, swapMemorySupport, NotPpc64le) errChan := make(chan error, 1) go func() { defer close(errChan) // memory limit lower than 8MB will raise an error of "device or resource busy" from docker-runc. out, exitCode, _ := dockerCmdWithError("run", "-m", "8MB", "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: assert.NilError(c, err) case <-time.After(600 * time.Second): c.Fatal("Timeout waiting for container to die on OOM") } } func (s *DockerSuite) TestRunWithMemoryLimit(c *testing.T) { testRequires(c, memoryLimitSupport) file := "/sys/fs/cgroup/memory/memory.limit_in_bytes" cli.DockerCmd(c, "run", "-m", "32M", "--name", "test", "busybox", "cat", file).Assert(c, icmd.Expected{ Out: "33554432", }) cli.InspectCmd(c, "test", cli.Format(".HostConfig.Memory")).Assert(c, icmd.Expected{ Out: "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 *testing.T) { testRequires(c, DaemonIsLinux) testRequires(c, memoryLimitSupport) testRequires(c, swapMemorySupport) dockerCmd(c, "run", "-m", "32m", "--memory-swap", "-1", "busybox", "true") } func (s *DockerSuite) TestRunWithSwappiness(c *testing.T) { testRequires(c, memorySwappinessSupport) file := "/sys/fs/cgroup/memory/memory.swappiness" out, _ := dockerCmd(c, "run", "--memory-swappiness", "0", "--name", "test", "busybox", "cat", file) assert.Equal(c, strings.TrimSpace(out), "0") out = inspectField(c, "test", "HostConfig.MemorySwappiness") assert.Equal(c, out, "0") } func (s *DockerSuite) TestRunWithSwappinessInvalid(c *testing.T) { testRequires(c, memorySwappinessSupport) out, _, err := dockerCmdWithError("run", "--memory-swappiness", "101", "busybox", "true") assert.ErrorContains(c, err, "") expected := "Valid memory swappiness range is 0-100" assert.Assert(c, strings.Contains(out, expected), "Expected output to contain %q, not %q", out, expected) out, _, err = dockerCmdWithError("run", "--memory-swappiness", "-10", "busybox", "true") assert.ErrorContains(c, err, "") assert.Assert(c, strings.Contains(out, expected), "Expected output to contain %q, not %q", out, expected) } func (s *DockerSuite) TestRunWithMemoryReservation(c *testing.T) { testRequires(c, testEnv.IsLocalDaemon, memoryReservationSupport) file := "/sys/fs/cgroup/memory/memory.soft_limit_in_bytes" out, _ := dockerCmd(c, "run", "--memory-reservation", "200M", "--name", "test", "busybox", "cat", file) assert.Equal(c, strings.TrimSpace(out), "209715200") out = inspectField(c, "test", "HostConfig.MemoryReservation") assert.Equal(c, out, "209715200") } func (s *DockerSuite) TestRunWithMemoryReservationInvalid(c *testing.T) { testRequires(c, memoryLimitSupport) testRequires(c, testEnv.IsLocalDaemon, memoryReservationSupport) out, _, err := dockerCmdWithError("run", "-m", "500M", "--memory-reservation", "800M", "busybox", "true") assert.ErrorContains(c, err, "") expected := "Minimum memory limit can not be less than memory reservation limit" assert.Assert(c, strings.Contains(strings.TrimSpace(out), expected), "run container should fail with invalid memory reservation") out, _, err = dockerCmdWithError("run", "--memory-reservation", "1k", "busybox", "true") assert.ErrorContains(c, err, "") expected = "Minimum memory reservation allowed is 4MB" assert.Assert(c, strings.Contains(strings.TrimSpace(out), expected), "run container should fail with invalid memory reservation") } func (s *DockerSuite) TestStopContainerSignal(c *testing.T) { 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) assert.Assert(c, waitRun(containerID) == nil) dockerCmd(c, "stop", containerID) out, _ = dockerCmd(c, "logs", containerID) assert.Assert(c, strings.Contains(out, "exit trapped"), "Expected `exit trapped` in the log") } func (s *DockerSuite) TestRunSwapLessThanMemoryLimit(c *testing.T) { 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" assert.ErrorContains(c, err, "") assert.Assert(c, strings.Contains(out, expected)) } func (s *DockerSuite) TestRunInvalidCpusetCpusFlagValue(c *testing.T) { testRequires(c, cgroupCpuset, testEnv.IsLocalDaemon) sysInfo := sysinfo.New(true) cpus, err := parsers.ParseUintList(sysInfo.Cpus) assert.NilError(c, err) 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") assert.ErrorContains(c, err, "") expected := fmt.Sprintf("Error response from daemon: Requested CPUs are not available - requested %s, available: %s", strconv.Itoa(invalid), sysInfo.Cpus) assert.Assert(c, strings.Contains(out, expected)) } func (s *DockerSuite) TestRunInvalidCpusetMemsFlagValue(c *testing.T) { testRequires(c, cgroupCpuset) sysInfo := sysinfo.New(true) mems, err := parsers.ParseUintList(sysInfo.Mems) assert.NilError(c, err) 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") assert.ErrorContains(c, err, "") expected := fmt.Sprintf("Error response from daemon: Requested memory nodes are not available - requested %s, available: %s", strconv.Itoa(invalid), sysInfo.Mems) assert.Assert(c, strings.Contains(out, expected)) } func (s *DockerSuite) TestRunInvalidCPUShares(c *testing.T) { testRequires(c, cpuShare, DaemonIsLinux) out, _, err := dockerCmdWithError("run", "--cpu-shares", "1", "busybox", "echo", "test") assert.ErrorContains(c, err, "", out) expected := "minimum allowed cpu-shares is 2" assert.Assert(c, strings.Contains(out, expected)) out, _, err = dockerCmdWithError("run", "--cpu-shares", "-1", "busybox", "echo", "test") assert.ErrorContains(c, err, "", out) expected = "shares: invalid argument" assert.Assert(c, strings.Contains(out, expected)) out, _, err = dockerCmdWithError("run", "--cpu-shares", "99999999", "busybox", "echo", "test") assert.ErrorContains(c, err, "", out) expected = "maximum allowed cpu-shares is" assert.Assert(c, strings.Contains(out, expected)) } func (s *DockerSuite) TestRunWithDefaultShmSize(c *testing.T) { 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") assert.Equal(c, shmSize, "67108864") } func (s *DockerSuite) TestRunWithShmSize(c *testing.T) { 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") assert.Equal(c, shmSize, "1073741824") } func (s *DockerSuite) TestRunTmpfsMountsEnsureOrdered(c *testing.T) { tmpFile, err := ioutil.TempFile("", "test") assert.NilError(c, err) defer tmpFile.Close() out, _ := dockerCmd(c, "run", "--tmpfs", "/run", "-v", tmpFile.Name()+":/run/test", "busybox", "ls", "/run") assert.Assert(c, strings.Contains(out, "test")) } func (s *DockerSuite) TestRunTmpfsMounts(c *testing.T) { // 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") } } func (s *DockerSuite) TestRunTmpfsMountsOverrideImageVolumes(c *testing.T) { name := "img-with-volumes" buildImageSuccessfully(c, name, build.WithDockerfile(` FROM busybox VOLUME /run RUN touch /run/stuff `)) out, _ := dockerCmd(c, "run", "--tmpfs", "/run", name, "ls", "/run") assert.Assert(c, !strings.Contains(out, "stuff")) } // Test case for #22420 func (s *DockerSuite) TestRunTmpfsMountsWithOptions(c *testing.T) { testRequires(c, DaemonIsLinux) expectedOptions := []string{"rw", "nosuid", "nodev", "noexec", "relatime"} out, _ := dockerCmd(c, "run", "--tmpfs", "/tmp", "busybox", "sh", "-c", "mount | grep 'tmpfs on /tmp'") for _, option := range expectedOptions { assert.Assert(c, strings.Contains(out, option)) } assert.Assert(c, !strings.Contains(out, "size=")) expectedOptions = []string{"rw", "nosuid", "nodev", "noexec", "relatime"} out, _ = dockerCmd(c, "run", "--tmpfs", "/tmp:rw", "busybox", "sh", "-c", "mount | grep 'tmpfs on /tmp'") for _, option := range expectedOptions { assert.Assert(c, strings.Contains(out, option)) } assert.Assert(c, !strings.Contains(out, "size=")) expectedOptions = []string{"rw", "nosuid", "nodev", "relatime", "size=8192k"} out, _ = dockerCmd(c, "run", "--tmpfs", "/tmp:rw,exec,size=8192k", "busybox", "sh", "-c", "mount | grep 'tmpfs on /tmp'") for _, option := range expectedOptions { assert.Assert(c, strings.Contains(out, option)) } expectedOptions = []string{"rw", "nosuid", "nodev", "noexec", "relatime", "size=4096k"} out, _ = dockerCmd(c, "run", "--tmpfs", "/tmp:rw,size=8192k,exec,size=4096k,noexec", "busybox", "sh", "-c", "mount | grep 'tmpfs on /tmp'") for _, option := range expectedOptions { assert.Assert(c, strings.Contains(out, option)) } // We use debian:buster as there is no findmnt in busybox. Also the output will be in the format of // TARGET PROPAGATION // /tmp shared // so we only capture `shared` here. expectedOptions = []string{"shared"} out, _ = dockerCmd(c, "run", "--tmpfs", "/tmp:shared", "debian:buster", "findmnt", "-o", "TARGET,PROPAGATION", "/tmp") for _, option := range expectedOptions { assert.Assert(c, strings.Contains(out, option)) } } func (s *DockerSuite) TestRunSysctls(c *testing.T) { testRequires(c, DaemonIsLinux) var err error out, _ := dockerCmd(c, "run", "--sysctl", "net.ipv4.ip_forward=1", "--name", "test", "busybox", "cat", "/proc/sys/net/ipv4/ip_forward") assert.Equal(c, strings.TrimSpace(out), "1") out = inspectFieldJSON(c, "test", "HostConfig.Sysctls") sysctls := make(map[string]string) err = json.Unmarshal([]byte(out), &sysctls) assert.NilError(c, err) assert.Equal(c, sysctls["net.ipv4.ip_forward"], "1") out, _ = dockerCmd(c, "run", "--sysctl", "net.ipv4.ip_forward=0", "--name", "test1", "busybox", "cat", "/proc/sys/net/ipv4/ip_forward") assert.Equal(c, strings.TrimSpace(out), "0") out = inspectFieldJSON(c, "test1", "HostConfig.Sysctls") err = json.Unmarshal([]byte(out), &sysctls) assert.NilError(c, err) assert.Equal(c, sysctls["net.ipv4.ip_forward"], "0") icmd.RunCommand(dockerBinary, "run", "--sysctl", "kernel.foobar=1", "--name", "test2", "busybox", "cat", "/proc/sys/kernel/foobar").Assert(c, icmd.Expected{ ExitCode: 125, Err: "invalid argument", }) } // TestRunSeccompProfileDenyUnshare checks that 'docker run --security-opt seccomp=/tmp/profile.json debian:buster unshare' exits with operation not permitted. func (s *DockerSuite) TestRunSeccompProfileDenyUnshare(c *testing.T) { testRequires(c, testEnv.IsLocalDaemon, seccompEnabled, NotArm, Apparmor) jsonData := `{ "defaultAction": "SCMP_ACT_ALLOW", "syscalls": [ { "name": "unshare", "action": "SCMP_ACT_ERRNO" } ] }` tmpFile, err := ioutil.TempFile("", "profile.json") if err != nil { c.Fatal(err) } defer tmpFile.Close() if _, err := tmpFile.Write([]byte(jsonData)); err != nil { c.Fatal(err) } icmd.RunCommand(dockerBinary, "run", "--security-opt", "apparmor=unconfined", "--security-opt", "seccomp="+tmpFile.Name(), "debian:buster", "unshare", "-p", "-m", "-f", "-r", "mount", "-t", "proc", "none", "/proc").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) } // 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 *testing.T) { testRequires(c, testEnv.IsLocalDaemon, seccompEnabled) jsonData := `{ "defaultAction": "SCMP_ACT_ALLOW", "syscalls": [ { "name": "chmod", "action": "SCMP_ACT_ERRNO" }, { "name":"fchmod", "action": "SCMP_ACT_ERRNO" }, { "name": "fchmodat", "action":"SCMP_ACT_ERRNO" } ] }` tmpFile, err := ioutil.TempFile("", "profile.json") assert.NilError(c, err) defer tmpFile.Close() if _, err := tmpFile.Write([]byte(jsonData)); err != nil { c.Fatal(err) } icmd.RunCommand(dockerBinary, "run", "--security-opt", "seccomp="+tmpFile.Name(), "busybox", "chmod", "400", "/etc/hostname").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) } // TestRunSeccompProfileDenyUnshareUserns checks that 'docker run debian:buster unshare --map-root-user --user sh -c whoami' with a specific profile to // deny unshare of a userns exits with operation not permitted. func (s *DockerSuite) TestRunSeccompProfileDenyUnshareUserns(c *testing.T) { testRequires(c, testEnv.IsLocalDaemon, 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") if err != nil { c.Fatal(err) } defer tmpFile.Close() if _, err := tmpFile.Write([]byte(jsonData)); err != nil { c.Fatal(err) } icmd.RunCommand(dockerBinary, "run", "--security-opt", "apparmor=unconfined", "--security-opt", "seccomp="+tmpFile.Name(), "debian:buster", "unshare", "--map-root-user", "--user", "sh", "-c", "whoami").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) } // TestRunSeccompProfileDenyCloneUserns checks that 'docker run syscall-test' // with a the default seccomp profile exits with operation not permitted. func (s *DockerSuite) TestRunSeccompProfileDenyCloneUserns(c *testing.T) { testRequires(c, testEnv.IsLocalDaemon, seccompEnabled) ensureSyscallTest(c) icmd.RunCommand(dockerBinary, "run", "syscall-test", "userns-test", "id").Assert(c, icmd.Expected{ ExitCode: 1, Err: "clone failed: Operation not permitted", }) } // TestRunSeccompUnconfinedCloneUserns checks that // 'docker run --security-opt seccomp=unconfined syscall-test' allows creating a userns. func (s *DockerSuite) TestRunSeccompUnconfinedCloneUserns(c *testing.T) { testRequires(c, testEnv.IsLocalDaemon, seccompEnabled, UserNamespaceInKernel, NotUserNamespace, unprivilegedUsernsClone) ensureSyscallTest(c) // make sure running w privileged is ok icmd.RunCommand(dockerBinary, "run", "--security-opt", "seccomp=unconfined", "syscall-test", "userns-test", "id").Assert(c, icmd.Expected{ Out: "nobody", }) } // TestRunSeccompAllowPrivCloneUserns checks that 'docker run --privileged syscall-test' // allows creating a userns. func (s *DockerSuite) TestRunSeccompAllowPrivCloneUserns(c *testing.T) { testRequires(c, testEnv.IsLocalDaemon, seccompEnabled, UserNamespaceInKernel, NotUserNamespace) ensureSyscallTest(c) // make sure running w privileged is ok icmd.RunCommand(dockerBinary, "run", "--privileged", "syscall-test", "userns-test", "id").Assert(c, icmd.Expected{ Out: "nobody", }) } // TestRunSeccompProfileAllow32Bit checks that 32 bit code can run on x86_64 // with the default seccomp profile. func (s *DockerSuite) TestRunSeccompProfileAllow32Bit(c *testing.T) { testRequires(c, testEnv.IsLocalDaemon, seccompEnabled, IsAmd64) ensureSyscallTest(c) icmd.RunCommand(dockerBinary, "run", "syscall-test", "exit32-test").Assert(c, icmd.Success) } // TestRunSeccompAllowSetrlimit checks that 'docker run debian:buster ulimit -v 1048510' succeeds. func (s *DockerSuite) TestRunSeccompAllowSetrlimit(c *testing.T) { testRequires(c, testEnv.IsLocalDaemon, seccompEnabled) // ulimit uses setrlimit, so we want to make sure we don't break it icmd.RunCommand(dockerBinary, "run", "debian:buster", "bash", "-c", "ulimit -v 1048510").Assert(c, icmd.Success) } func (s *DockerSuite) TestRunSeccompDefaultProfileAcct(c *testing.T) { testRequires(c, testEnv.IsLocalDaemon, seccompEnabled, NotUserNamespace) ensureSyscallTest(c) out, _, err := dockerCmdWithError("run", "syscall-test", "acct-test") if err == nil || !strings.Contains(out, "Operation not permitted") { c.Fatalf("test 0: expected Operation not permitted, got: %s", out) } out, _, err = dockerCmdWithError("run", "--cap-add", "sys_admin", "syscall-test", "acct-test") if err == nil || !strings.Contains(out, "Operation not permitted") { c.Fatalf("test 1: expected Operation not permitted, got: %s", out) } out, _, err = dockerCmdWithError("run", "--cap-add", "sys_pacct", "syscall-test", "acct-test") if err == nil || !strings.Contains(out, "No such file or directory") { c.Fatalf("test 2: expected No such file or directory, got: %s", out) } out, _, err = dockerCmdWithError("run", "--cap-add", "ALL", "syscall-test", "acct-test") if err == nil || !strings.Contains(out, "No such file or directory") { c.Fatalf("test 3: expected No such file or directory, got: %s", out) } out, _, err = dockerCmdWithError("run", "--cap-drop", "ALL", "--cap-add", "sys_pacct", "syscall-test", "acct-test") if err == nil || !strings.Contains(out, "No such file or directory") { c.Fatalf("test 4: expected No such file or directory, got: %s", out) } } func (s *DockerSuite) TestRunSeccompDefaultProfileNS(c *testing.T) { testRequires(c, testEnv.IsLocalDaemon, seccompEnabled, NotUserNamespace) ensureSyscallTest(c) out, _, err := dockerCmdWithError("run", "syscall-test", "ns-test", "echo", "hello0") if err == nil || !strings.Contains(out, "Operation not permitted") { c.Fatalf("test 0: expected Operation not permitted, got: %s", out) } out, _, err = dockerCmdWithError("run", "--cap-add", "sys_admin", "syscall-test", "ns-test", "echo", "hello1") if err != nil || !strings.Contains(out, "hello1") { c.Fatalf("test 1: expected hello1, got: %s, %v", out, err) } out, _, err = dockerCmdWithError("run", "--cap-drop", "all", "--cap-add", "sys_admin", "syscall-test", "ns-test", "echo", "hello2") if err != nil || !strings.Contains(out, "hello2") { c.Fatalf("test 2: expected hello2, got: %s, %v", out, err) } out, _, err = dockerCmdWithError("run", "--cap-add", "ALL", "syscall-test", "ns-test", "echo", "hello3") if err != nil || !strings.Contains(out, "hello3") { c.Fatalf("test 3: expected hello3, got: %s, %v", out, err) } 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") { c.Fatalf("test 4: expected No such file or directory, got: %s", out) } out, _, err = dockerCmdWithError("run", "--cap-add", "ALL", "--security-opt", "seccomp=unconfined", "syscall-test", "ns-test", "echo", "hello4") if err != nil || !strings.Contains(out, "hello4") { c.Fatalf("test 5: expected hello4, got: %s, %v", out, err) } } // TestRunNoNewPrivSetuid checks that --security-opt='no-new-privileges=true' prevents // effective uid transitions on executing setuid binaries. func (s *DockerSuite) TestRunNoNewPrivSetuid(c *testing.T) { testRequires(c, DaemonIsLinux, NotUserNamespace, testEnv.IsLocalDaemon) ensureNNPTest(c) // test that running a setuid binary results in no effective uid transition icmd.RunCommand(dockerBinary, "run", "--security-opt", "no-new-privileges=true", "--user", "1000", "nnp-test", "/usr/bin/nnp-test").Assert(c, icmd.Expected{ Out: "EUID=1000", }) } // TestLegacyRunNoNewPrivSetuid checks that --security-opt=no-new-privileges prevents // effective uid transitions on executing setuid binaries. func (s *DockerSuite) TestLegacyRunNoNewPrivSetuid(c *testing.T) { testRequires(c, DaemonIsLinux, NotUserNamespace, testEnv.IsLocalDaemon) ensureNNPTest(c) // test that running a setuid binary results in no effective uid transition icmd.RunCommand(dockerBinary, "run", "--security-opt", "no-new-privileges", "--user", "1000", "nnp-test", "/usr/bin/nnp-test").Assert(c, icmd.Expected{ Out: "EUID=1000", }) } func (s *DockerSuite) TestUserNoEffectiveCapabilitiesChown(c *testing.T) { testRequires(c, DaemonIsLinux, testEnv.IsLocalDaemon) ensureSyscallTest(c) // test that a root user has default capability CAP_CHOWN dockerCmd(c, "run", "busybox", "chown", "100", "/tmp") // test that non root user does not have default capability CAP_CHOWN icmd.RunCommand(dockerBinary, "run", "--user", "1000:1000", "busybox", "chown", "100", "/tmp").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) // test that root user can drop default capability CAP_CHOWN icmd.RunCommand(dockerBinary, "run", "--cap-drop", "chown", "busybox", "chown", "100", "/tmp").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) } func (s *DockerSuite) TestUserNoEffectiveCapabilitiesDacOverride(c *testing.T) { testRequires(c, DaemonIsLinux, testEnv.IsLocalDaemon) ensureSyscallTest(c) // test that a root user has default capability CAP_DAC_OVERRIDE dockerCmd(c, "run", "busybox", "sh", "-c", "echo test > /etc/passwd") // test that non root user does not have default capability CAP_DAC_OVERRIDE icmd.RunCommand(dockerBinary, "run", "--user", "1000:1000", "busybox", "sh", "-c", "echo test > /etc/passwd").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Permission denied", }) } func (s *DockerSuite) TestUserNoEffectiveCapabilitiesFowner(c *testing.T) { testRequires(c, DaemonIsLinux, testEnv.IsLocalDaemon) ensureSyscallTest(c) // test that a root user has default capability CAP_FOWNER dockerCmd(c, "run", "busybox", "chmod", "777", "/etc/passwd") // test that non root user does not have default capability CAP_FOWNER icmd.RunCommand(dockerBinary, "run", "--user", "1000:1000", "busybox", "chmod", "777", "/etc/passwd").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) // TODO test that root user can drop default capability CAP_FOWNER } // TODO CAP_KILL func (s *DockerSuite) TestUserNoEffectiveCapabilitiesSetuid(c *testing.T) { testRequires(c, DaemonIsLinux, testEnv.IsLocalDaemon) ensureSyscallTest(c) // test that a root user has default capability CAP_SETUID dockerCmd(c, "run", "syscall-test", "setuid-test") // test that non root user does not have default capability CAP_SETUID icmd.RunCommand(dockerBinary, "run", "--user", "1000:1000", "syscall-test", "setuid-test").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) // test that root user can drop default capability CAP_SETUID icmd.RunCommand(dockerBinary, "run", "--cap-drop", "setuid", "syscall-test", "setuid-test").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) } func (s *DockerSuite) TestUserNoEffectiveCapabilitiesSetgid(c *testing.T) { testRequires(c, DaemonIsLinux, testEnv.IsLocalDaemon) ensureSyscallTest(c) // test that a root user has default capability CAP_SETGID dockerCmd(c, "run", "syscall-test", "setgid-test") // test that non root user does not have default capability CAP_SETGID icmd.RunCommand(dockerBinary, "run", "--user", "1000:1000", "syscall-test", "setgid-test").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) // test that root user can drop default capability CAP_SETGID icmd.RunCommand(dockerBinary, "run", "--cap-drop", "setgid", "syscall-test", "setgid-test").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) } // TODO CAP_SETPCAP // sysctlExists checks if a sysctl exists; runc will error if we add any that do not actually // exist, so do not add the default ones if running on an old kernel. func sysctlExists(s string) bool { f := filepath.Join("/proc", "sys", strings.Replace(s, ".", "/", -1)) _, err := os.Stat(f) return err == nil } func (s *DockerSuite) TestUserNoEffectiveCapabilitiesNetBindService(c *testing.T) { testRequires(c, DaemonIsLinux, testEnv.IsLocalDaemon) ensureSyscallTest(c) // test that a root user has default capability CAP_NET_BIND_SERVICE dockerCmd(c, "run", "syscall-test", "socket-test") // test that non root user does not have default capability CAP_NET_BIND_SERVICE // as we allow this via sysctl, also tweak the sysctl back to default args := []string{"run", "--user", "1000:1000"} if sysctlExists("net.ipv4.ip_unprivileged_port_start") { args = append(args, "--sysctl", "net.ipv4.ip_unprivileged_port_start=1024") } args = append(args, "syscall-test", "socket-test") icmd.RunCommand(dockerBinary, args...).Assert(c, icmd.Expected{ ExitCode: 1, Err: "Permission denied", }) // test that root user can drop default capability CAP_NET_BIND_SERVICE args = []string{"run", "--cap-drop", "net_bind_service"} if sysctlExists("net.ipv4.ip_unprivileged_port_start") { args = append(args, "--sysctl", "net.ipv4.ip_unprivileged_port_start=1024") } args = append(args, "syscall-test", "socket-test") icmd.RunCommand(dockerBinary, args...).Assert(c, icmd.Expected{ ExitCode: 1, Err: "Permission denied", }) } func (s *DockerSuite) TestUserNoEffectiveCapabilitiesNetRaw(c *testing.T) { testRequires(c, DaemonIsLinux, testEnv.IsLocalDaemon) ensureSyscallTest(c) // test that a root user has default capability CAP_NET_RAW dockerCmd(c, "run", "syscall-test", "raw-test") // test that non root user does not have default capability CAP_NET_RAW icmd.RunCommand(dockerBinary, "run", "--user", "1000:1000", "syscall-test", "raw-test").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) // test that root user can drop default capability CAP_NET_RAW icmd.RunCommand(dockerBinary, "run", "--cap-drop", "net_raw", "syscall-test", "raw-test").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) } func (s *DockerSuite) TestUserNoEffectiveCapabilitiesChroot(c *testing.T) { testRequires(c, DaemonIsLinux, testEnv.IsLocalDaemon) ensureSyscallTest(c) // test that a root user has default capability CAP_SYS_CHROOT dockerCmd(c, "run", "busybox", "chroot", "/", "/bin/true") // test that non root user does not have default capability CAP_SYS_CHROOT icmd.RunCommand(dockerBinary, "run", "--user", "1000:1000", "busybox", "chroot", "/", "/bin/true").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) // test that root user can drop default capability CAP_SYS_CHROOT icmd.RunCommand(dockerBinary, "run", "--cap-drop", "sys_chroot", "busybox", "chroot", "/", "/bin/true").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) } func (s *DockerSuite) TestUserNoEffectiveCapabilitiesMknod(c *testing.T) { testRequires(c, DaemonIsLinux, NotUserNamespace, testEnv.IsLocalDaemon) ensureSyscallTest(c) // test that a root user has default capability CAP_MKNOD dockerCmd(c, "run", "busybox", "mknod", "/tmp/node", "b", "1", "2") // test that non root user does not have default capability CAP_MKNOD // test that root user can drop default capability CAP_SYS_CHROOT icmd.RunCommand(dockerBinary, "run", "--user", "1000:1000", "busybox", "mknod", "/tmp/node", "b", "1", "2").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) // test that root user can drop default capability CAP_MKNOD icmd.RunCommand(dockerBinary, "run", "--cap-drop", "mknod", "busybox", "mknod", "/tmp/node", "b", "1", "2").Assert(c, icmd.Expected{ ExitCode: 1, Err: "Operation not permitted", }) } // TODO CAP_AUDIT_WRITE // TODO CAP_SETFCAP func (s *DockerSuite) TestRunApparmorProcDirectory(c *testing.T) { testRequires(c, testEnv.IsLocalDaemon, Apparmor) // running w seccomp unconfined tests the apparmor profile result := icmd.RunCommand(dockerBinary, "run", "--security-opt", "seccomp=unconfined", "busybox", "chmod", "777", "/proc/1/cgroup") result.Assert(c, icmd.Expected{ExitCode: 1}) if !(strings.Contains(result.Combined(), "Permission denied") || strings.Contains(result.Combined(), "Operation not permitted")) { c.Fatalf("expected chmod 777 /proc/1/cgroup to fail, got %s: %v", result.Combined(), result.Error) } result = icmd.RunCommand(dockerBinary, "run", "--security-opt", "seccomp=unconfined", "busybox", "chmod", "777", "/proc/1/attr/current") result.Assert(c, icmd.Expected{ExitCode: 1}) if !(strings.Contains(result.Combined(), "Permission denied") || strings.Contains(result.Combined(), "Operation not permitted")) { c.Fatalf("expected chmod 777 /proc/1/attr/current to fail, got %s: %v", result.Combined(), result.Error) } } // 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 *testing.T) { testRequires(c, testEnv.IsLocalDaemon, seccompEnabled) out, _, err := dockerCmdWithError("run", "--security-opt", "seccomp=../profiles/seccomp/default.json", "debian:buster", "unshare", "--map-root-user", "--user", "sh", "-c", "whoami") assert.ErrorContains(c, err, "", out) assert.Equal(c, strings.TrimSpace(out), "unshare: unshare failed: Operation not permitted") } // TestRunDeviceSymlink checks run with device that follows symlink (#13840 and #22271) func (s *DockerSuite) TestRunDeviceSymlink(c *testing.T) { testRequires(c, DaemonIsLinux, NotUserNamespace, NotArm, testEnv.IsLocalDaemon) 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") assert.NilError(c, err) defer os.RemoveAll(tmpDir) // Create a symbolic link to /dev/zero symZero := filepath.Join(tmpDir, "zero") err = os.Symlink("/dev/zero", symZero) assert.NilError(c, err) // 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) assert.NilError(c, err) symFile := filepath.Join(tmpDir, "file") err = os.Symlink(tmpFile, symFile) assert.NilError(c, err) // Create a symbolic link to /dev/zero, this time with a relative path (#22271) err = os.Symlink("zero", "/dev/symzero") if err != nil { c.Fatal("/dev/symzero creation failed") } // We need to remove this symbolic link here as it is created in /dev/, not temporary directory as above defer os.Remove("/dev/symzero") // 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") assert.Assert(c, strings.Contains(strings.Trim(out, "\r\n"), "bb7df04e1b0a2570657527a7e108ae23"), "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") assert.ErrorContains(c, err, "") assert.Assert(c, strings.Contains(strings.Trim(out, "\r\n"), "not a device node"), "expected output 'not a device node'") // md5sum of 'dd if=/dev/zero bs=4K count=8' is bb7df04e1b0a2570657527a7e108ae23 (this time check with relative path backed, see #22271) out, _ = dockerCmd(c, "run", "--device", "/dev/symzero:/dev/symzero", "busybox", "sh", "-c", "dd if=/dev/symzero bs=4K count=8 | md5sum") assert.Assert(c, strings.Contains(strings.Trim(out, "\r\n"), "bb7df04e1b0a2570657527a7e108ae23"), "expected output bb7df04e1b0a2570657527a7e108ae23") } // TestRunPIDsLimit makes sure the pids cgroup is set with --pids-limit func (s *DockerSuite) TestRunPIDsLimit(c *testing.T) { testRequires(c, testEnv.IsLocalDaemon, pidsLimit) file := "/sys/fs/cgroup/pids/pids.max" out, _ := dockerCmd(c, "run", "--name", "skittles", "--pids-limit", "4", "busybox", "cat", file) assert.Equal(c, strings.TrimSpace(out), "4") out = inspectField(c, "skittles", "HostConfig.PidsLimit") assert.Equal(c, out, "4", "setting the pids limit failed") } func (s *DockerSuite) TestRunPrivilegedAllowedDevices(c *testing.T) { testRequires(c, DaemonIsLinux, NotUserNamespace) file := "/sys/fs/cgroup/devices/devices.list" out, _ := dockerCmd(c, "run", "--privileged", "busybox", "cat", file) c.Logf("out: %q", out) assert.Equal(c, strings.TrimSpace(out), "a *:* rwm") } func (s *DockerSuite) TestRunUserDeviceAllowed(c *testing.T) { 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) assert.Assert(c, strings.Contains(out, fmt.Sprintf("c %d:%d w", stat.Rdev/256, stat.Rdev%256))) } func (s *DockerDaemonSuite) TestRunSeccompJSONNewFormat(c *testing.T) { testRequires(c, seccompEnabled) s.d.StartWithBusybox(c) jsonData := `{ "defaultAction": "SCMP_ACT_ALLOW", "syscalls": [ { "names": ["chmod", "fchmod", "fchmodat"], "action": "SCMP_ACT_ERRNO" } ] }` tmpFile, err := ioutil.TempFile("", "profile.json") assert.NilError(c, err) defer tmpFile.Close() _, err = tmpFile.Write([]byte(jsonData)) assert.NilError(c, err) out, err := s.d.Cmd("run", "--security-opt", "seccomp="+tmpFile.Name(), "busybox", "chmod", "777", ".") assert.ErrorContains(c, err, "") assert.Assert(c, strings.Contains(out, "Operation not permitted")) } func (s *DockerDaemonSuite) TestRunSeccompJSONNoNameAndNames(c *testing.T) { testRequires(c, seccompEnabled) s.d.StartWithBusybox(c) jsonData := `{ "defaultAction": "SCMP_ACT_ALLOW", "syscalls": [ { "name": "chmod", "names": ["fchmod", "fchmodat"], "action": "SCMP_ACT_ERRNO" } ] }` tmpFile, err := ioutil.TempFile("", "profile.json") assert.NilError(c, err) defer tmpFile.Close() _, err = tmpFile.Write([]byte(jsonData)) assert.NilError(c, err) out, err := s.d.Cmd("run", "--security-opt", "seccomp="+tmpFile.Name(), "busybox", "chmod", "777", ".") assert.ErrorContains(c, err, "") assert.Assert(c, strings.Contains(out, "'name' and 'names' were specified in the seccomp profile, use either 'name' or 'names'")) } func (s *DockerDaemonSuite) TestRunSeccompJSONNoArchAndArchMap(c *testing.T) { testRequires(c, seccompEnabled) s.d.StartWithBusybox(c) jsonData := `{ "archMap": [ { "architecture": "SCMP_ARCH_X86_64", "subArchitectures": [ "SCMP_ARCH_X86", "SCMP_ARCH_X32" ] } ], "architectures": [ "SCMP_ARCH_X32" ], "defaultAction": "SCMP_ACT_ALLOW", "syscalls": [ { "names": ["chmod", "fchmod", "fchmodat"], "action": "SCMP_ACT_ERRNO" } ] }` tmpFile, err := ioutil.TempFile("", "profile.json") assert.NilError(c, err) defer tmpFile.Close() _, err = tmpFile.Write([]byte(jsonData)) assert.NilError(c, err) out, err := s.d.Cmd("run", "--security-opt", "seccomp="+tmpFile.Name(), "busybox", "chmod", "777", ".") assert.ErrorContains(c, err, "") assert.Assert(c, strings.Contains(out, "'architectures' and 'archMap' were specified in the seccomp profile, use either 'architectures' or 'archMap'")) } func (s *DockerDaemonSuite) TestRunWithDaemonDefaultSeccompProfile(c *testing.T) { testRequires(c, seccompEnabled) s.d.StartWithBusybox(c) // 1) verify I can run containers with the Docker default shipped profile which allows chmod _, err := s.d.Cmd("run", "busybox", "chmod", "777", ".") assert.NilError(c, err) jsonData := `{ "defaultAction": "SCMP_ACT_ALLOW", "syscalls": [ { "name": "chmod", "action": "SCMP_ACT_ERRNO" }, { "name": "fchmodat", "action": "SCMP_ACT_ERRNO" } ] }` tmpFile, err := ioutil.TempFile("", "profile.json") assert.NilError(c, err) defer tmpFile.Close() _, err = tmpFile.Write([]byte(jsonData)) assert.NilError(c, err) // 2) restart the daemon and add a custom seccomp profile in which we deny chmod s.d.Restart(c, "--seccomp-profile="+tmpFile.Name()) out, err := s.d.Cmd("run", "busybox", "chmod", "777", ".") assert.ErrorContains(c, err, "") assert.Assert(c, strings.Contains(out, "Operation not permitted")) } func (s *DockerSuite) TestRunWithNanoCPUs(c *testing.T) { testRequires(c, cpuCfsQuota, cpuCfsPeriod) file1 := "/sys/fs/cgroup/cpu/cpu.cfs_quota_us" file2 := "/sys/fs/cgroup/cpu/cpu.cfs_period_us" out, _ := dockerCmd(c, "run", "--cpus", "0.5", "--name", "test", "busybox", "sh", "-c", fmt.Sprintf("cat %s && cat %s", file1, file2)) assert.Equal(c, strings.TrimSpace(out), "50000\n100000") clt, err := client.NewClientWithOpts(client.FromEnv) assert.NilError(c, err) inspect, err := clt.ContainerInspect(context.Background(), "test") assert.NilError(c, err) assert.Equal(c, inspect.HostConfig.NanoCPUs, int64(500000000)) out = inspectField(c, "test", "HostConfig.CpuQuota") assert.Equal(c, out, "0", "CPU CFS quota should be 0") out = inspectField(c, "test", "HostConfig.CpuPeriod") assert.Equal(c, out, "0", "CPU CFS period should be 0") out, _, err = dockerCmdWithError("run", "--cpus", "0.5", "--cpu-quota", "50000", "--cpu-period", "100000", "busybox", "sh") assert.ErrorContains(c, err, "") assert.Assert(c, strings.Contains(out, "Conflicting options: Nano CPUs and CPU Period cannot both be set")) }