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Copy pathdocker_cli_run_test.go
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docker_cli_run_test.go
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package main
import (
"bufio"
"bytes"
"fmt"
"io/ioutil"
"net"
"os"
"os/exec"
"path"
"path/filepath"
"reflect"
"regexp"
"sort"
"strconv"
"strings"
"sync"
"testing"
"time"
"github.com/docker/docker/nat"
"github.com/docker/docker/pkg/networkfs/resolvconf"
)
// "test123" should be printed by docker run
func TestRunEchoStdout(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "busybox", "echo", "test123")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
if err != nil {
t.Fatalf("failed to run container: %v, output: %q", err, out)
}
if out != "test123\n" {
t.Errorf("container should've printed 'test123'")
}
deleteAllContainers()
logDone("run - echo test123")
}
// "test" should be printed
func TestRunEchoStdoutWithMemoryLimit(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "-m", "16m", "busybox", "echo", "test")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
if err != nil {
t.Fatalf("failed to run container: %v, output: %q", err, out)
}
out = strings.Trim(out, "\r\n")
if expected := "test"; out != expected {
t.Errorf("container should've printed %q but printed %q", expected, out)
}
deleteAllContainers()
logDone("run - echo with memory limit")
}
// "test" should be printed
func TestRunEchoStdoutWitCPULimit(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "-c", "1000", "busybox", "echo", "test")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
if err != nil {
t.Fatalf("failed to run container: %v, output: %q", err, out)
}
if out != "test\n" {
t.Errorf("container should've printed 'test'")
}
deleteAllContainers()
logDone("run - echo with CPU limit")
}
// "test" should be printed
func TestRunEchoStdoutWithCPUAndMemoryLimit(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "-c", "1000", "-m", "16m", "busybox", "echo", "test")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
if err != nil {
t.Fatalf("failed to run container: %v, output: %q", err, out)
}
if out != "test\n" {
t.Errorf("container should've printed 'test', got %q instead", out)
}
deleteAllContainers()
logDone("run - echo with CPU and memory limit")
}
// "test" should be printed
func TestRunEchoNamedContainer(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "--name", "testfoonamedcontainer", "busybox", "echo", "test")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
if err != nil {
t.Fatalf("failed to run container: %v, output: %q", err, 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 TestRunLeakyFileDescriptors(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "busybox", "ls", "-C", "/proc/self/fd")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
if err != nil {
t.Fatalf("failed to run container: %v, output: %q", err, 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 TestRunPingGoogle(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "busybox", "ping", "-c", "1", "8.8.8.8")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
if err != nil {
t.Fatalf("failed to run container: %v, output: %q", err, out)
}
deleteAllContainers()
logDone("run - ping 8.8.8.8")
}
// the exit code should be 0
// some versions of lxc might make this test fail
func TestRunExitCodeZero(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "busybox", "true")
if out, _, err := runCommandWithOutput(runCmd); err != nil {
t.Errorf("container should've exited with exit code 0: %s, %v", out, err)
}
deleteAllContainers()
logDone("run - exit with 0")
}
// the exit code should be 1
// some versions of lxc might make this test fail
func TestRunExitCodeOne(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)
if err != nil {
t.Fatalf("failed to run container: %v, output: %q", err, out)
}
out = stripTrailingCharacters(out)
inspectCmd := exec.Command(dockerBinary, "inspect", out)
if out, _, err := runCommandWithOutput(inspectCmd); err != nil {
t.Fatalf("out should've been a container id: %s %v", out, err)
}
waitCmd := exec.Command(dockerBinary, "wait", out)
if waitOut, _, err := runCommandWithOutput(waitCmd); err != nil {
t.Fatalf("error thrown while waiting for container: %s, %v", waitOut, err)
}
logsCmd := exec.Command(dockerBinary, "logs", out)
logsOut, _, err := runCommandWithOutput(logsCmd)
if err != nil {
t.Fatalf("error thrown while trying to get container logs: %s, %v", logsOut, err)
}
containerLogs := stripTrailingCharacters(logsOut)
if containerLogs != "blahblah" {
t.Errorf("logs didn't print the container's logs %s", containerLogs)
}
rmCmd := exec.Command(dockerBinary, "rm", out)
if out, _, err = runCommandWithOutput(rmCmd); err != nil {
t.Fatalf("rm failed to remove container: %s, %v", out, 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 TestRunDetachedContainerIDPrinting(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "true")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
if err != nil {
t.Fatalf("failed to run container: %v, output: %q", err, out)
}
out = stripTrailingCharacters(out)
inspectCmd := exec.Command(dockerBinary, "inspect", out)
if inspectOut, _, err := runCommandWithOutput(inspectCmd); err != nil {
t.Fatalf("out should've been a container id: %s %v", inspectOut, err)
}
waitCmd := exec.Command(dockerBinary, "wait", out)
if waitOut, _, err := runCommandWithOutput(waitCmd); err != nil {
t.Fatalf("error thrown while waiting for container: %s, %v", waitOut, err)
}
rmCmd := exec.Command(dockerBinary, "rm", out)
rmOut, _, err := runCommandWithOutput(rmCmd)
if err != nil {
t.Fatalf("rm failed to remove container: %s, %v", rmOut, err)
}
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 TestRunWorkingDirectory(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "-w", "/root", "busybox", "pwd")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
if err != nil {
t.Fatalf("failed to run container: %v, output: %q", err, 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)
if err != nil {
t.Fatal(out, err)
}
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 TestRunWithoutNetworking(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "--net=none", "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("--net=none 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 --net=none")
logDone("run - disable networking with -n=false")
}
// Regression test for #4741
func TestRunWithVolumesAsFiles(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 TestRunWithVolumesFromExited(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 TestRunWithRelativePath(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 TestRunVolumesMountedAsReadonly(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 TestRunVolumesFromInReadonlyMode(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 TestRunVolumesFromInReadWriteMode(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:rw", "busybox", "touch", "/test/file")
if out, _, err := runCommandWithOutput(cmd); err != nil {
t.Fatalf("running --volumes-from parent:rw failed with output: %q\nerror: %v", out, err)
}
cmd = exec.Command(dockerBinary, "run", "--volumes-from", "parent:bar", "busybox", "touch", "/test/file")
if out, _, err := runCommandWithOutput(cmd); err == nil || !strings.Contains(out, "Invalid mode for volumes-from: bar") {
t.Fatalf("running --volumes-from foo:bar should have failed with invalid mount mode: %q", out)
}
cmd = exec.Command(dockerBinary, "run", "--volumes-from", "parent", "busybox", "touch", "/test/file")
if out, _, err := runCommandWithOutput(cmd); err != nil {
t.Fatalf("running --volumes-from parent failed with output: %q\nerror: %v", out, err)
}
deleteAllContainers()
logDone("run - volumes from as read write mount")
}
func TestVolumesFromGetsProperMode(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--name", "parent", "-v", "/test:/test:ro", "busybox", "true")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
// Expect this "rw" mode to be be ignored since the inheritted volume is "ro"
cmd = exec.Command(dockerBinary, "run", "--volumes-from", "parent:rw", "busybox", "touch", "/test/file")
if _, err := runCommand(cmd); err == nil {
t.Fatal("Expected volumes-from to inherit read-only volume even when passing in `rw`")
}
cmd = exec.Command(dockerBinary, "run", "--name", "parent2", "-v", "/test:/test:ro", "busybox", "true")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
// Expect this to be read-only since both are "ro"
cmd = exec.Command(dockerBinary, "run", "--volumes-from", "parent2:ro", "busybox", "touch", "/test/file")
if _, err := runCommand(cmd); err == nil {
t.Fatal("Expected volumes-from to inherit read-only volume even when passing in `ro`")
}
deleteAllContainers()
logDone("run - volumes from ignores `rw` if inherrited volume is `ro`")
}
// Test for #1351
func TestRunApplyVolumesFromBeforeVolumes(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 out, _, err := runCommandWithOutput(cmd); err != nil {
t.Fatal(out, err)
}
deleteAllContainers()
logDone("run - volumes from mounted first")
}
func TestRunMultipleVolumesFrom(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 TestRunVerifyContainerID(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 TestRunCreateVolume(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 managed 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 TestRunCreateVolumeWithSymlink(t *testing.T) {
buildCmd := exec.Command(dockerBinary, "build", "-t", "docker-test-createvolumewithsymlink", "-")
buildCmd.Stdin = strings.NewReader(`FROM busybox
RUN mkdir /foo && ln -s /foo /bar`)
buildCmd.Dir = workingDirectory
err := buildCmd.Run()
if err != nil {
t.Fatalf("could not build 'docker-test-createvolumewithsymlink': %v", err)
}
cmd := exec.Command(dockerBinary, "run", "-v", "/bar/foo", "--name", "test-createvolumewithsymlink", "docker-test-createvolumewithsymlink", "sh", "-c", "mount | grep -q /foo/foo")
exitCode, err := runCommand(cmd)
if err != nil || exitCode != 0 {
t.Fatalf("[run] err: %v, exitcode: %d", err, exitCode)
}
var volPath string
cmd = exec.Command(dockerBinary, "inspect", "-f", "{{range .Volumes}}{{.}}{{end}}", "test-createvolumewithsymlink")
volPath, exitCode, err = runCommandWithOutput(cmd)
if err != nil || exitCode != 0 {
t.Fatalf("[inspect] err: %v, exitcode: %d", err, exitCode)
}
cmd = exec.Command(dockerBinary, "rm", "-v", "test-createvolumewithsymlink")
exitCode, err = runCommand(cmd)
if err != nil || exitCode != 0 {
t.Fatalf("[rm] err: %v, exitcode: %d", err, exitCode)
}
f, err := os.Open(volPath)
defer f.Close()
if !os.IsNotExist(err) {
t.Fatalf("[open] (expecting 'file does not exist' error) err: %v, volPath: %s", err, volPath)
}
deleteImages("docker-test-createvolumewithsymlink")
deleteAllContainers()
logDone("run - create volume with symlink")
}
// Tests that a volume path that has a symlink exists in a container mounting it with `--volumes-from`.
func TestRunVolumesFromSymlinkPath(t *testing.T) {
name := "docker-test-volumesfromsymlinkpath"
buildCmd := exec.Command(dockerBinary, "build", "-t", name, "-")
buildCmd.Stdin = strings.NewReader(`FROM busybox
RUN mkdir /baz && ln -s /baz /foo
VOLUME ["/foo/bar"]`)
buildCmd.Dir = workingDirectory
err := buildCmd.Run()
if err != nil {
t.Fatalf("could not build 'docker-test-volumesfromsymlinkpath': %v", err)
}
cmd := exec.Command(dockerBinary, "run", "--name", "test-volumesfromsymlinkpath", name)
exitCode, err := runCommand(cmd)
if err != nil || exitCode != 0 {
t.Fatalf("[run] (volume) err: %v, exitcode: %d", err, exitCode)
}
cmd = exec.Command(dockerBinary, "run", "--volumes-from", "test-volumesfromsymlinkpath", "busybox", "sh", "-c", "ls /foo | grep -q bar")
exitCode, err = runCommand(cmd)
if err != nil || exitCode != 0 {
t.Fatalf("[run] err: %v, exitcode: %d", err, exitCode)
}
deleteAllContainers()
deleteImages(name)
logDone("run - volumes-from symlink path")
}
func TestRunExitCode(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 TestRunUserDefaultsToRoot(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 TestRunUserByName(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 TestRunUserByID(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 TestRunUserByIDBig(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "-u", "2147483648", "busybox", "id")
out, _, err := runCommandWithOutput(cmd)
if err == nil {
t.Fatal("No error, but must be.", out)
}
if !strings.Contains(out, "Uids and gids must be in range") {
t.Fatalf("expected error about uids range, got %s", out)
}
deleteAllContainers()
logDone("run - user by id, id too big")
}
func TestRunUserByIDNegative(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "-u", "-1", "busybox", "id")
out, _, err := runCommandWithOutput(cmd)
if err == nil {
t.Fatal("No error, but must be.", out)
}
if !strings.Contains(out, "Uids and gids must be in range") {
t.Fatalf("expected error about uids range, got %s", out)
}
deleteAllContainers()
logDone("run - user by id, id negative")
}
func TestRunUserByIDZero(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "-u", "0", "busybox", "id")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err, out)
}
if !strings.Contains(out, "uid=0(root) gid=0(root) groups=10(wheel)") {
t.Fatalf("expected daemon user got %s", out)
}
deleteAllContainers()
logDone("run - user by id, zero uid")
}
func TestRunUserNotFound(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 TestRunEnvironment(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "-h", "testing", "-e=FALSE=true", "-e=TRUE", "-e=TRICKY", "-e=HOME=", "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",
"HOSTNAME=testing",
"FALSE=true",
"TRUE=false",
"TRICKY=tri",
"cky",
"",
"HOME=/root",
}
sort.Strings(goodEnv)
if len(goodEnv) != len(actualEnv) {
t.Fatalf("Wrong environment: should be %d variables, not: %q\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 TestRunContainerNetwork(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 TestRunLoopbackWhenNetworkDisabled(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--net=none", "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 TestRunNetHostNotAllowedWithLinks(t *testing.T) {
_, _, err := dockerCmd(t, "run", "--name", "linked", "busybox", "true")
cmd := exec.Command(dockerBinary, "run", "--net=host", "--link", "linked:linked", "busybox", "true")
_, _, err = runCommandWithOutput(cmd)
if err == nil {
t.Fatal("Expected error")
}
deleteAllContainers()
logDone("run - don't allow --net=host to be used with links")
}
func TestRunLoopbackOnlyExistsWhenNetworkingDisabled(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--net=none", "busybox", "ip", "-o", "-4", "a", "show", "up")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err, out)
}
var (
count = 0
parts = strings.Split(out, "\n")
)
for _, l := range parts {
if l != "" {
count++
}
}
if count != 1 {
t.Fatalf("Wrong interface count in container %d", count)
}
if !strings.HasPrefix(out, "1: lo") {
t.Fatalf("Wrong interface in test container: expected [1: lo], got %s", out)
}
deleteAllContainers()
logDone("run - test loopback only exists when networking disabled")
}
// #7851 hostname outside container shows FQDN, inside only shortname
// For testing purposes it is not required to set host's hostname directly
// and use "--net=host" (as the original issue submitter did), as the same
// codepath is executed with "docker run -h <hostname>". Both were manually
// tested, but this testcase takes the simpler path of using "run -h .."
func TestRunFullHostnameSet(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "-h", "foo.bar.baz", "busybox", "hostname")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err, out)
}
if actual := strings.Trim(out, "\r\n"); actual != "foo.bar.baz" {
t.Fatalf("expected hostname 'foo.bar.baz', received %s", actual)
}
deleteAllContainers()
logDone("run - test fully qualified hostname set with -h")
}
func TestRunPrivilegedCanMknod(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 TestRunUnPrivilegedCanMknod(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 TestRunCapDropInvalid(t *testing.T) {
defer deleteAllContainers()
cmd := exec.Command(dockerBinary, "run", "--cap-drop=CHPASS", "busybox", "ls")
out, _, err := runCommandWithOutput(cmd)
if err == nil {
t.Fatal(err, out)
}
logDone("run - test --cap-drop=CHPASS invalid")
}
func TestRunCapDropCannotMknod(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--cap-drop=MKNOD", "busybox", "sh", "-c", "mknod /tmp/sda b 8 0 && 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 --cap-drop=MKNOD cannot mknod")
}
func TestRunCapDropCannotMknodLowerCase(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--cap-drop=mknod", "busybox", "sh", "-c", "mknod /tmp/sda b 8 0 && 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 --cap-drop=mknod cannot mknod lowercase")
}
func TestRunCapDropALLCannotMknod(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--cap-drop=ALL", "busybox", "sh", "-c", "mknod /tmp/sda b 8 0 && 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 --cap-drop=ALL cannot mknod")
}
func TestRunCapDropALLAddMknodCannotMknod(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--cap-drop=ALL", "--cap-add=MKNOD", "busybox", "sh", "-c", "mknod /tmp/sda b 8 0 && 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 ok received %s", actual)
}
deleteAllContainers()
logDone("run - test --cap-drop=ALL --cap-add=MKNOD can mknod")
}
func TestRunCapAddInvalid(t *testing.T) {
defer deleteAllContainers()
cmd := exec.Command(dockerBinary, "run", "--cap-add=CHPASS", "busybox", "ls")
out, _, err := runCommandWithOutput(cmd)
if err == nil {
t.Fatal(err, out)
}
logDone("run - test --cap-add=CHPASS invalid")
}
func TestRunCapAddCanDownInterface(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--cap-add=NET_ADMIN", "busybox", "sh", "-c", "ip link set eth0 down && 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 ok received %s", actual)
}
deleteAllContainers()
logDone("run - test --cap-add=NET_ADMIN can set eth0 down")
}
func TestRunCapAddALLCanDownInterface(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--cap-add=ALL", "busybox", "sh", "-c", "ip link set eth0 down && 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 ok received %s", actual)
}