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moby--moby/integration-cli/docker_cli_run_test.go
Jérôme Petazzoni 1c4202a614 Mount /proc and /sys read-only, except in privileged containers.
It has been pointed out that some files in /proc and /sys can be used
to break out of containers. However, if those filesystems are mounted
read-only, most of the known exploits are mitigated, since they rely
on writing some file in those filesystems.

This does not replace security modules (like SELinux or AppArmor), it
is just another layer of security. Likewise, it doesn't mean that the
other mitigations (shadowing parts of /proc or /sys with bind mounts)
are useless. Those measures are still useful. As such, the shadowing
of /proc/kcore is still enabled with both LXC and native drivers.

Special care has to be taken with /proc/1/attr, which still needs to
be mounted read-write in order to enable the AppArmor profile. It is
bind-mounted from a private read-write mount of procfs.

All that enforcement is done in dockerinit. The code doing the real
work is in libcontainer. The init function for the LXC driver calls
the function from libcontainer to avoid code duplication.

Docker-DCO-1.1-Signed-off-by: Jérôme Petazzoni <jerome@docker.com> (github: jpetazzo)
2014-05-01 15:26:58 -07:00

770 lines
22 KiB
Go

package main
import (
"fmt"
"os"
"os/exec"
"path/filepath"
"regexp"
"sort"
"strings"
"sync"
"testing"
)
// "test123" should be printed by docker run
func TestDockerRunEchoStdout(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "busybox", "echo", "test123")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, out)
if out != "test123\n" {
t.Errorf("container should've printed 'test123'")
}
deleteAllContainers()
logDone("run - echo test123")
}
// "test" should be printed
func TestDockerRunEchoStdoutWithMemoryLimit(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "-m", "2786432", "busybox", "echo", "test")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, out)
if out != "test\n" {
t.Errorf("container should've printed 'test'")
}
deleteAllContainers()
logDone("run - echo with memory limit")
}
// "test" should be printed
func TestDockerRunEchoStdoutWitCPULimit(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "-c", "1000", "busybox", "echo", "test")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, out)
if out != "test\n" {
t.Errorf("container should've printed 'test'")
}
deleteAllContainers()
logDone("run - echo with CPU limit")
}
// "test" should be printed
func TestDockerRunEchoStdoutWithCPUAndMemoryLimit(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "-c", "1000", "-m", "2786432", "busybox", "echo", "test")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, out)
if out != "test\n" {
t.Errorf("container should've printed 'test'")
}
deleteAllContainers()
logDone("run - echo with CPU and memory limit")
}
// "test" should be printed
func TestDockerRunEchoNamedContainer(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "--name", "testfoonamedcontainer", "busybox", "echo", "test")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, out)
if out != "test\n" {
t.Errorf("container should've printed 'test'")
}
if err := deleteContainer("testfoonamedcontainer"); err != nil {
t.Errorf("failed to remove the named container: %v", err)
}
deleteAllContainers()
logDone("run - echo with named container")
}
// docker run should not leak file descriptors
func TestDockerRunLeakyFileDescriptors(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "busybox", "ls", "-C", "/proc/self/fd")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, out)
// normally, we should only get 0, 1, and 2, but 3 gets created by "ls" when it does "opendir" on the "fd" directory
if out != "0 1 2 3\n" {
t.Errorf("container should've printed '0 1 2 3', not: %s", out)
}
deleteAllContainers()
logDone("run - check file descriptor leakage")
}
// it should be possible to ping Google DNS resolver
// this will fail when Internet access is unavailable
func TestDockerRunPingGoogle(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "busybox", "ping", "-c", "1", "8.8.8.8")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, out)
errorOut(err, t, "container should've been able to ping 8.8.8.8")
deleteAllContainers()
logDone("run - ping 8.8.8.8")
}
// the exit code should be 0
// some versions of lxc might make this test fail
func TestDockerRunExitCodeZero(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "busybox", "true")
exitCode, err := runCommand(runCmd)
errorOut(err, t, fmt.Sprintf("%s", err))
if exitCode != 0 {
t.Errorf("container should've exited with exit code 0")
}
deleteAllContainers()
logDone("run - exit with 0")
}
// the exit code should be 1
// some versions of lxc might make this test fail
func TestDockerRunExitCodeOne(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "busybox", "false")
exitCode, err := runCommand(runCmd)
if err != nil && !strings.Contains("exit status 1", fmt.Sprintf("%s", err)) {
t.Fatal(err)
}
if exitCode != 1 {
t.Errorf("container should've exited with exit code 1")
}
deleteAllContainers()
logDone("run - exit with 1")
}
// it should be possible to pipe in data via stdin to a process running in a container
// some versions of lxc might make this test fail
func TestRunStdinPipe(t *testing.T) {
runCmd := exec.Command("bash", "-c", `echo "blahblah" | docker run -i -a stdin busybox cat`)
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, out)
out = stripTrailingCharacters(out)
inspectCmd := exec.Command(dockerBinary, "inspect", out)
inspectOut, _, err := runCommandWithOutput(inspectCmd)
errorOut(err, t, fmt.Sprintf("out should've been a container id: %s %s", out, inspectOut))
waitCmd := exec.Command(dockerBinary, "wait", out)
_, _, err = runCommandWithOutput(waitCmd)
errorOut(err, t, fmt.Sprintf("error thrown while waiting for container: %s", out))
logsCmd := exec.Command(dockerBinary, "logs", out)
containerLogs, _, err := runCommandWithOutput(logsCmd)
errorOut(err, t, fmt.Sprintf("error thrown while trying to get container logs: %s", err))
containerLogs = stripTrailingCharacters(containerLogs)
if containerLogs != "blahblah" {
t.Errorf("logs didn't print the container's logs %s", containerLogs)
}
rmCmd := exec.Command(dockerBinary, "rm", out)
_, _, err = runCommandWithOutput(rmCmd)
errorOut(err, t, fmt.Sprintf("rm failed to remove container %s", err))
deleteAllContainers()
logDone("run - pipe in with -i -a stdin")
}
// the container's ID should be printed when starting a container in detached mode
func TestDockerRunDetachedContainerIDPrinting(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "true")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, out)
out = stripTrailingCharacters(out)
inspectCmd := exec.Command(dockerBinary, "inspect", out)
inspectOut, _, err := runCommandWithOutput(inspectCmd)
errorOut(err, t, fmt.Sprintf("out should've been a container id: %s %s", out, inspectOut))
waitCmd := exec.Command(dockerBinary, "wait", out)
_, _, err = runCommandWithOutput(waitCmd)
errorOut(err, t, fmt.Sprintf("error thrown while waiting for container: %s", out))
rmCmd := exec.Command(dockerBinary, "rm", out)
rmOut, _, err := runCommandWithOutput(rmCmd)
errorOut(err, t, "rm failed to remove container")
rmOut = stripTrailingCharacters(rmOut)
if rmOut != out {
t.Errorf("rm didn't print the container ID %s %s", out, rmOut)
}
deleteAllContainers()
logDone("run - print container ID in detached mode")
}
// the working directory should be set correctly
func TestDockerRunWorkingDirectory(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "-w", "/root", "busybox", "pwd")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, out)
out = stripTrailingCharacters(out)
if out != "/root" {
t.Errorf("-w failed to set working directory")
}
runCmd = exec.Command(dockerBinary, "run", "--workdir", "/root", "busybox", "pwd")
out, _, _, err = runCommandWithStdoutStderr(runCmd)
errorOut(err, t, out)
out = stripTrailingCharacters(out)
if out != "/root" {
t.Errorf("--workdir failed to set working directory")
}
deleteAllContainers()
logDone("run - run with working directory set by -w")
logDone("run - run with working directory set by --workdir")
}
// pinging Google's DNS resolver should fail when we disable the networking
func TestDockerRunWithoutNetworking(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "--networking=false", "busybox", "ping", "-c", "1", "8.8.8.8")
out, _, exitCode, err := runCommandWithStdoutStderr(runCmd)
if err != nil && exitCode != 1 {
t.Fatal(out, err)
}
if exitCode != 1 {
t.Errorf("--networking=false should've disabled the network; the container shouldn't have been able to ping 8.8.8.8")
}
runCmd = exec.Command(dockerBinary, "run", "-n=false", "busybox", "ping", "-c", "1", "8.8.8.8")
out, _, exitCode, err = runCommandWithStdoutStderr(runCmd)
if err != nil && exitCode != 1 {
t.Fatal(out, err)
}
if exitCode != 1 {
t.Errorf("-n=false should've disabled the network; the container shouldn't have been able to ping 8.8.8.8")
}
deleteAllContainers()
logDone("run - disable networking with --networking=false")
logDone("run - disable networking with -n=false")
}
// Regression test for #4741
func TestDockerRunWithVolumesAsFiles(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "--name", "test-data", "--volume", "/etc/hosts:/target-file", "busybox", "true")
out, stderr, exitCode, err := runCommandWithStdoutStderr(runCmd)
if err != nil && exitCode != 0 {
t.Fatal("1", out, stderr, err)
}
runCmd = exec.Command(dockerBinary, "run", "--volumes-from", "test-data", "busybox", "cat", "/target-file")
out, stderr, exitCode, err = runCommandWithStdoutStderr(runCmd)
if err != nil && exitCode != 0 {
t.Fatal("2", out, stderr, err)
}
deleteAllContainers()
logDone("run - regression test for #4741 - volumes from as files")
}
// Regression test for #4979
func TestDockerRunWithVolumesFromExited(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "--name", "test-data", "--volume", "/some/dir", "busybox", "touch", "/some/dir/file")
out, stderr, exitCode, err := runCommandWithStdoutStderr(runCmd)
if err != nil && exitCode != 0 {
t.Fatal("1", out, stderr, err)
}
runCmd = exec.Command(dockerBinary, "run", "--volumes-from", "test-data", "busybox", "cat", "/some/dir/file")
out, stderr, exitCode, err = runCommandWithStdoutStderr(runCmd)
if err != nil && exitCode != 0 {
t.Fatal("2", out, stderr, err)
}
deleteAllContainers()
logDone("run - regression test for #4979 - volumes-from on exited container")
}
// Regression test for #4830
func TestDockerRunWithRelativePath(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "-v", "tmp:/other-tmp", "busybox", "true")
if _, _, _, err := runCommandWithStdoutStderr(runCmd); err == nil {
t.Fatalf("relative path should result in an error")
}
deleteAllContainers()
logDone("run - volume with relative path")
}
func TestVolumesMountedAsReadonly(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "-v", "/test:/test:ro", "busybox", "touch", "/test/somefile")
if code, err := runCommand(cmd); err == nil || code == 0 {
t.Fatalf("run should fail because volume is ro: exit code %d", code)
}
deleteAllContainers()
logDone("run - volumes as readonly mount")
}
func TestVolumesFromInReadonlyMode(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--name", "parent", "-v", "/test", "busybox", "true")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
cmd = exec.Command(dockerBinary, "run", "--volumes-from", "parent:ro", "busybox", "touch", "/test/file")
if code, err := runCommand(cmd); err == nil || code == 0 {
t.Fatalf("run should fail because volume is ro: exit code %d", code)
}
deleteAllContainers()
logDone("run - volumes from as readonly mount")
}
// Regression test for #1201
func TestVolumesFromInReadWriteMode(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--name", "parent", "-v", "/test", "busybox", "true")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
cmd = exec.Command(dockerBinary, "run", "--volumes-from", "parent", "busybox", "touch", "/test/file")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
deleteAllContainers()
logDone("run - volumes from as read write mount")
}
// Test for #1351
func TestApplyVolumesFromBeforeVolumes(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--name", "parent", "-v", "/test", "busybox", "touch", "/test/foo")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
cmd = exec.Command(dockerBinary, "run", "--volumes-from", "parent", "-v", "/test", "busybox", "cat", "/test/foo")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
deleteAllContainers()
logDone("run - volumes from mounted first")
}
func TestMultipleVolumesFrom(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--name", "parent1", "-v", "/test", "busybox", "touch", "/test/foo")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
cmd = exec.Command(dockerBinary, "run", "--name", "parent2", "-v", "/other", "busybox", "touch", "/other/bar")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
cmd = exec.Command(dockerBinary, "run", "--volumes-from", "parent1", "--volumes-from", "parent2",
"busybox", "sh", "-c", "cat /test/foo && cat /other/bar")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
deleteAllContainers()
logDone("run - multiple volumes from")
}
// this tests verifies the ID format for the container
func TestVerifyContainerID(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "-d", "busybox", "true")
out, exit, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err)
}
if exit != 0 {
t.Fatalf("expected exit code 0 received %d", exit)
}
match, err := regexp.MatchString("^[0-9a-f]{64}$", strings.TrimSuffix(out, "\n"))
if err != nil {
t.Fatal(err)
}
if !match {
t.Fatalf("Invalid container ID: %s", out)
}
deleteAllContainers()
logDone("run - verify container ID")
}
// Test that creating a container with a volume doesn't crash. Regression test for #995.
func TestCreateVolume(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "-v", "/var/lib/data", "busybox", "true")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
deleteAllContainers()
logDone("run - create docker mangaed volume")
}
// Test that creating a volume with a symlink in its path works correctly. Test for #5152.
// Note that this bug happens only with symlinks with a target that starts with '/'.
func TestVolumeWithSymlink(t *testing.T) {
buildDirectory := filepath.Join(workingDirectory, "run_tests", "TestVolumeWithSymlink")
buildCmd := exec.Command(dockerBinary, "build", "-t", "docker-test-volumewithsymlink", ".")
buildCmd.Dir = buildDirectory
err := buildCmd.Run()
if err != nil {
t.Fatal("could not build 'docker-test-volumewithsymlink': %v", err)
}
cmd := exec.Command(dockerBinary, "run", "-v", "/bar/foo", "--name", "test-volumewithsymlink", "docker-test-volumewithsymlink", "sh", "-c", "mount | grep -q /foo/foo")
exitCode, err := runCommand(cmd)
if err != nil || exitCode != 0 {
t.Fatal("[run] err: %v, exitcode: %d", err, exitCode)
}
var volPath string
cmd = exec.Command(dockerBinary, "inspect", "-f", "{{range .Volumes}}{{.}}{{end}}", "test-volumewithsymlink")
volPath, exitCode, err = runCommandWithOutput(cmd)
if err != nil || exitCode != 0 {
t.Fatal("[inspect] err: %v, exitcode: %d", err, exitCode)
}
cmd = exec.Command(dockerBinary, "rm", "-v", "test-volumewithsymlink")
exitCode, err = runCommand(cmd)
if err != nil || exitCode != 0 {
t.Fatal("[rm] err: %v, exitcode: %d", err, exitCode)
}
f, err := os.Open(volPath)
defer f.Close()
if !os.IsNotExist(err) {
t.Fatal("[open] (expecting 'file does not exist' error) err: %v, volPath: %s", err, volPath)
}
deleteImages("docker-test-volumewithsymlink")
deleteAllContainers()
logDone("run - volume with symlink")
}
func TestExitCode(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "busybox", "/bin/sh", "-c", "exit 72")
exit, err := runCommand(cmd)
if err == nil {
t.Fatal("should not have a non nil error")
}
if exit != 72 {
t.Fatalf("expected exit code 72 received %d", exit)
}
deleteAllContainers()
logDone("run - correct exit code")
}
func TestUserDefaultsToRoot(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "busybox", "id")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err, out)
}
if !strings.Contains(out, "uid=0(root) gid=0(root)") {
t.Fatalf("expected root user got %s", out)
}
deleteAllContainers()
logDone("run - default user")
}
func TestUserByName(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "-u", "root", "busybox", "id")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err, out)
}
if !strings.Contains(out, "uid=0(root) gid=0(root)") {
t.Fatalf("expected root user got %s", out)
}
deleteAllContainers()
logDone("run - user by name")
}
func TestUserByID(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "-u", "1", "busybox", "id")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err, out)
}
if !strings.Contains(out, "uid=1(daemon) gid=1(daemon)") {
t.Fatalf("expected daemon user got %s", out)
}
deleteAllContainers()
logDone("run - user by id")
}
func TestUserNotFound(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "-u", "notme", "busybox", "id")
_, err := runCommand(cmd)
if err == nil {
t.Fatal("unknown user should cause container to fail")
}
deleteAllContainers()
logDone("run - user not found")
}
func TestRunTwoConcurrentContainers(t *testing.T) {
group := sync.WaitGroup{}
group.Add(2)
for i := 0; i < 2; i++ {
go func() {
defer group.Done()
cmd := exec.Command(dockerBinary, "run", "busybox", "sleep", "2")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
}()
}
group.Wait()
deleteAllContainers()
logDone("run - two concurrent containers")
}
func TestEnvironment(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "-h", "testing", "-e=FALSE=true", "-e=TRUE", "-e=TRICKY", "busybox", "env")
cmd.Env = append(os.Environ(),
"TRUE=false",
"TRICKY=tri\ncky\n",
)
out, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err, out)
}
actualEnv := strings.Split(out, "\n")
if actualEnv[len(actualEnv)-1] == "" {
actualEnv = actualEnv[:len(actualEnv)-1]
}
sort.Strings(actualEnv)
goodEnv := []string{
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"HOME=/",
"HOSTNAME=testing",
"FALSE=true",
"TRUE=false",
"TRICKY=tri",
"cky",
"",
}
sort.Strings(goodEnv)
if len(goodEnv) != len(actualEnv) {
t.Fatalf("Wrong environment: should be %d variables, not: '%s'\n", len(goodEnv), strings.Join(actualEnv, ", "))
}
for i := range goodEnv {
if actualEnv[i] != goodEnv[i] {
t.Fatalf("Wrong environment variable: should be %s, not %s", goodEnv[i], actualEnv[i])
}
}
deleteAllContainers()
logDone("run - verify environment")
}
func TestContainerNetwork(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "busybox", "ping", "-c", "1", "127.0.0.1")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
deleteAllContainers()
logDone("run - test container network via ping")
}
// Issue #4681
func TestLoopbackWhenNetworkDisabled(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--networking=false", "busybox", "ping", "-c", "1", "127.0.0.1")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
deleteAllContainers()
logDone("run - test container loopback when networking disabled")
}
func TestLoopbackOnlyExistsWhenNetworkingDisabled(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--networking=false", "busybox", "ip", "a", "show", "up")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err, out)
}
interfaces := regexp.MustCompile(`(?m)^[0-9]+: [a-zA-Z0-9]+`).FindAllString(out, -1)
if len(interfaces) != 1 {
t.Fatalf("Wrong interface count in test container: expected [*: lo], got %s", interfaces)
}
if !strings.HasSuffix(interfaces[0], ": lo") {
t.Fatalf("Wrong interface in test container: expected [*: lo], got %s", interfaces)
}
deleteAllContainers()
logDone("run - test loopback only exists when networking disabled")
}
func TestPrivilegedCanMknod(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--privileged", "busybox", "sh", "-c", "mknod /tmp/sda b 8 0 && echo ok")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err)
}
if actual := strings.Trim(out, "\r\n"); actual != "ok" {
t.Fatalf("expected output ok received %s", actual)
}
deleteAllContainers()
logDone("run - test privileged can mknod")
}
func TestUnPrivilegedCanMknod(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "busybox", "sh", "-c", "mknod /tmp/sda b 8 0 && echo ok")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err)
}
if actual := strings.Trim(out, "\r\n"); actual != "ok" {
t.Fatalf("expected output ok received %s", actual)
}
deleteAllContainers()
logDone("run - test un-privileged can mknod")
}
func TestPrivilegedCanMount(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--privileged", "busybox", "sh", "-c", "mount -t tmpfs none /tmp && echo ok")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err)
}
if actual := strings.Trim(out, "\r\n"); actual != "ok" {
t.Fatalf("expected output ok received %s", actual)
}
deleteAllContainers()
logDone("run - test privileged can mount")
}
func TestUnPrivilegedCannotMount(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "busybox", "sh", "-c", "mount -t tmpfs none /tmp && echo ok")
out, _, err := runCommandWithOutput(cmd)
if err == nil {
t.Fatal(err, out)
}
if actual := strings.Trim(out, "\r\n"); actual == "ok" {
t.Fatalf("expected output not ok received %s", actual)
}
deleteAllContainers()
logDone("run - test un-privileged cannot mount")
}
func TestSysNotWritableInNonPrivilegedContainers(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "busybox", "touch", "/sys/kernel/profiling")
if code, err := runCommand(cmd); err == nil || code == 0 {
t.Fatal("sys should not be writable in a non privileged container")
}
deleteAllContainers()
logDone("run - sys not writable in non privileged container")
}
func TestSysWritableInPrivilegedContainers(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--privileged", "busybox", "touch", "/sys/kernel/profiling")
if code, err := runCommand(cmd); err != nil || code != 0 {
t.Fatalf("sys should be writable in privileged container")
}
deleteAllContainers()
logDone("run - sys writable in privileged container")
}
func TestProcNotWritableInNonPrivilegedContainers(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "busybox", "touch", "/proc/sysrq-trigger")
if code, err := runCommand(cmd); err == nil || code == 0 {
t.Fatal("proc should not be writable in a non privileged container")
}
deleteAllContainers()
logDone("run - proc not writable in non privileged container")
}
func TestProcWritableInPrivilegedContainers(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--privileged", "busybox", "touch", "/proc/sysrq-trigger")
if code, err := runCommand(cmd); err != nil || code != 0 {
t.Fatalf("proc should be writable in privileged container")
}
deleteAllContainers()
logDone("run - proc writable in privileged container")
}