// NewClient returns a new docker test client.
func NewClient() (
cli *client.DockerCli, stdout *io.PipeReader, stdoutPipe *io.PipeWriter) {
proto, addr, _ := DockerHost()
stdout, stdoutPipe = io.Pipe()
dockerCertPath := os.Getenv("DOCKER_CERT_PATH")
// Boot2docker use TLS per default, Jenkins not
if dockerCertPath != "" {
var (
tlsConfig tls.Config
)
tlsConfig.InsecureSkipVerify = true
flCert := filepath.Join(dockerCertPath, defaultCertFile)
flKey := filepath.Join(dockerCertPath, defaultKeyFile)
_, errCert := os.Stat(flCert)
_, errKey := os.Stat(flKey)
if errCert == nil && errKey == nil {
cert, err := tls.LoadX509KeyPair(flCert, flKey)
if err != nil {
log.Fatalf("Couldn't load X509 key pair: %s. Key encrypted?", err)
}
tlsConfig.Certificates = []tls.Certificate{cert}
}
// Avoid fallback to SSL protocols < TLS1.0
tlsConfig.MinVersion = tls.VersionTLS10
cli = client.NewDockerCli(nil, stdoutPipe, nil, nil, proto, addr, &tlsConfig)
} else {
cli = client.NewDockerCli(nil, stdoutPipe, nil, nil, proto, addr, nil)
}
return
}
func main() {
if reexec.Init() {
return
}
// Set terminal emulation based on platform as required.
stdin, stdout, stderr := term.StdStreams()
logrus.SetOutput(stderr)
flag.Merge(flag.CommandLine, clientFlags.FlagSet, commonFlags.FlagSet)
flag.Usage = func() {
fmt.Fprint(os.Stdout, "Usage: docker [OPTIONS] COMMAND [arg...]\n"+daemonUsage+" docker [ -h | --help | -v | --version ]\n\n")
fmt.Fprint(os.Stdout, "A self-sufficient runtime for containers.\n\nOptions:\n")
flag.CommandLine.SetOutput(os.Stdout)
flag.PrintDefaults()
help := "\nCommands:\n"
for _, cmd := range dockerCommands {
help += fmt.Sprintf(" %-10.10s%s\n", cmd.name, cmd.description)
}
help += "\nRun 'docker COMMAND --help' for more information on a command."
fmt.Fprintf(os.Stdout, "%s\n", help)
}
flag.Parse()
if *flVersion {
showVersion()
return
}
clientCli := client.NewDockerCli(stdin, stdout, stderr, clientFlags)
// TODO: remove once `-d` is retired
handleGlobalDaemonFlag()
if *flHelp {
// if global flag --help is present, regardless of what other options and commands there are,
// just print the usage.
flag.Usage()
return
}
c := cli.New(clientCli, daemonCli)
if err := c.Run(flag.Args()...); err != nil {
if sterr, ok := err.(cli.StatusError); ok {
if sterr.Status != "" {
fmt.Fprintln(os.Stderr, sterr.Status)
os.Exit(1)
}
os.Exit(sterr.StatusCode)
}
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}
// Ensure that CIDFile gets deleted if it's empty
// Perform this test by making `docker run` fail
func TestRunCidFileCleanupIfEmpty(t *testing.T) {
tmpDir, err := ioutil.TempDir("", "TestRunCidFile")
if err != nil {
t.Fatal(err)
}
tmpCidFile := path.Join(tmpDir, "cid")
cli := client.NewDockerCli(nil, ioutil.Discard, ioutil.Discard, testDaemonProto, testDaemonAddr, nil)
defer cleanup(globalEngine, t)
c := make(chan struct{})
go func() {
defer close(c)
if err := cli.CmdRun("--cidfile", tmpCidFile, unitTestImageID); err == nil {
t.Fatal("running without a command should haveve failed")
}
if _, err := os.Stat(tmpCidFile); err == nil {
t.Fatalf("empty CIDFile '%s' should've been deleted", tmpCidFile)
}
}()
defer os.RemoveAll(tmpDir)
setTimeout(t, "CmdRun timed out", 5*time.Second, func() {
<-c
})
}
func BuildImage(dockerfile string, name string) (string, error) {
cli := dockerCli.NewDockerCli(os.Stdin, os.Stdout, os.Stderr, nil, "unix", "/var/run/docker.sock", nil)
err := cli.CmdBuild("-t", name, strings.TrimSuffix(dockerfile, "Dockerfile"))
if err != nil {
return "", err
}
return GetImageId(name, "")
}
// TestHttpsInfo connects via two-way authenticated HTTPS to the info endpoint
func TestHttpsInfo(t *testing.T) {
cli := client.NewDockerCli(nil, ioutil.Discard, ioutil.Discard, testDaemonProto,
testDaemonHttpsAddr, getTlsConfig("client-cert.pem", "client-key.pem", t))
setTimeout(t, "Reading command output time out", 10*time.Second, func() {
if err := cli.CmdInfo(); err != nil {
t.Fatal(err)
}
})
}
// NewCobraAdaptor returns a new handler
func NewCobraAdaptor(clientFlags *cliflags.ClientFlags) CobraAdaptor {
stdin, stdout, stderr := term.StdStreams()
dockerCli := client.NewDockerCli(stdin, stdout, stderr, clientFlags)
var rootCmd = &cobra.Command{
Use: "docker",
SilenceUsage: true,
SilenceErrors: true,
}
rootCmd.SetUsageTemplate(usageTemplate)
rootCmd.SetHelpTemplate(helpTemplate)
rootCmd.SetFlagErrorFunc(cli.FlagErrorFunc)
rootCmd.SetOutput(stdout)
rootCmd.AddCommand(
container.NewAttachCommand(dockerCli),
container.NewCreateCommand(dockerCli),
container.NewDiffCommand(dockerCli),
container.NewExportCommand(dockerCli),
container.NewKillCommand(dockerCli),
container.NewLogsCommand(dockerCli),
container.NewPauseCommand(dockerCli),
container.NewPortCommand(dockerCli),
container.NewRenameCommand(dockerCli),
container.NewRestartCommand(dockerCli),
container.NewRmCommand(dockerCli),
container.NewRunCommand(dockerCli),
container.NewStartCommand(dockerCli),
container.NewStatsCommand(dockerCli),
container.NewStopCommand(dockerCli),
container.NewTopCommand(dockerCli),
container.NewUnpauseCommand(dockerCli),
container.NewWaitCommand(dockerCli),
image.NewBuildCommand(dockerCli),
image.NewHistoryCommand(dockerCli),
image.NewImagesCommand(dockerCli),
image.NewLoadCommand(dockerCli),
image.NewRemoveCommand(dockerCli),
image.NewSaveCommand(dockerCli),
image.NewSearchCommand(dockerCli),
image.NewImportCommand(dockerCli),
image.NewTagCommand(dockerCli),
network.NewNetworkCommand(dockerCli),
system.NewEventsCommand(dockerCli),
system.NewVersionCommand(dockerCli),
volume.NewVolumeCommand(dockerCli),
)
rootCmd.PersistentFlags().BoolP("help", "h", false, "Print usage")
rootCmd.PersistentFlags().MarkShorthandDeprecated("help", "please use --help")
return CobraAdaptor{
rootCmd: rootCmd,
dockerCli: dockerCli,
}
}
func newDockerClient() *client.DockerCli {
// Set terminal emulation based on platform as required.
stdin, stdout, stderr := term.StdStreams()
setDefaultConfFlag(flTrustKey, defaultTrustKeyFile)
if len(flHosts) > 1 {
log.Fatal("Please specify only one -H")
}
protoAddrParts := strings.SplitN(flHosts[0], "://", 2)
var (
cli *client.DockerCli
tlsConfig tls.Config
)
tlsConfig.InsecureSkipVerify = true
// Regardless of whether the user sets it to true or false, if they
// specify --tlsverify at all then we need to turn on tls
if flag.IsSet("-tlsverify") {
*flTls = true
}
// If we should verify the server, we need to load a trusted ca
if *flTlsVerify {
certPool := x509.NewCertPool()
file, err := ioutil.ReadFile(*flCa)
if err != nil {
log.Fatalf("Couldn't read ca cert %s: %s", *flCa, err)
}
certPool.AppendCertsFromPEM(file)
tlsConfig.RootCAs = certPool
tlsConfig.InsecureSkipVerify = false
}
// If tls is enabled, try to load and send client certificates
if *flTls || *flTlsVerify {
_, errCert := os.Stat(*flCert)
_, errKey := os.Stat(*flKey)
if errCert == nil && errKey == nil {
*flTls = true
cert, err := tls.LoadX509KeyPair(*flCert, *flKey)
if err != nil {
log.Fatalf("Couldn't load X509 key pair: %q. Make sure the key is encrypted", err)
}
tlsConfig.Certificates = []tls.Certificate{cert}
}
// Avoid fallback to SSL protocols < TLS1.0
tlsConfig.MinVersion = tls.VersionTLS10
}
cli = client.NewDockerCli(stdin, stdout, stderr, *flTrustKey, protoAddrParts[0], protoAddrParts[1], &tlsConfig)
return cli
}
// TestRunDetach checks attaching and detaching with the escape sequence.
func TestRunDetach(t *testing.T) {
stdout, stdoutPipe := io.Pipe()
cpty, tty, err := pty.Open()
if err != nil {
t.Fatal(err)
}
key, err := libtrust.GenerateECP256PrivateKey()
if err != nil {
t.Fatal(err)
}
cli := client.NewDockerCli(tty, stdoutPipe, ioutil.Discard, key, testDaemonProto, testDaemonAddr, nil)
defer cleanup(globalEngine, t)
ch := make(chan struct{})
go func() {
defer close(ch)
cli.CmdRun("-i", "-t", unitTestImageID, "cat")
}()
container := waitContainerStart(t, 10*time.Second)
state := setRaw(t, container)
defer unsetRaw(t, container, state)
setTimeout(t, "First read/write assertion timed out", 2*time.Second, func() {
if err := assertPipe("hello\n", "hello", stdout, cpty, 150); err != nil {
t.Fatal(err)
}
})
setTimeout(t, "Escape sequence timeout", 5*time.Second, func() {
cpty.Write([]byte{16})
time.Sleep(100 * time.Millisecond)
cpty.Write([]byte{17})
})
// wait for CmdRun to return
setTimeout(t, "Waiting for CmdRun timed out", 15*time.Second, func() {
<-ch
})
closeWrap(cpty, stdout, stdoutPipe)
time.Sleep(500 * time.Millisecond)
if !container.IsRunning() {
t.Fatal("The detached container should be still running")
}
setTimeout(t, "Waiting for container to die timed out", 20*time.Second, func() {
container.Kill()
})
}
// Expected behaviour: the process stay alive when the client disconnects
// but the client detaches.
func TestRunDisconnectTty(t *testing.T) {
stdin, stdinPipe := io.Pipe()
stdout, stdoutPipe := io.Pipe()
key, err := libtrust.GenerateECP256PrivateKey()
if err != nil {
t.Fatal(err)
}
cli := client.NewDockerCli(stdin, stdoutPipe, ioutil.Discard, key, testDaemonProto, testDaemonAddr, nil)
defer cleanup(globalEngine, t)
c1 := make(chan struct{})
go func() {
defer close(c1)
// We're simulating a disconnect so the return value doesn't matter. What matters is the
// fact that CmdRun returns.
if err := cli.CmdRun("-i", "-t", unitTestImageID, "/bin/cat"); err != nil {
log.Debugf("Error CmdRun: %s", err)
}
}()
container := waitContainerStart(t, 10*time.Second)
state := setRaw(t, container)
defer unsetRaw(t, container, state)
// Client disconnect after run -i should keep stdin out in TTY mode
setTimeout(t, "Read/Write assertion timed out", 2*time.Second, func() {
if err := assertPipe("hello\n", "hello", stdout, stdinPipe, 150); err != nil {
t.Fatal(err)
}
})
// Close pipes (simulate disconnect)
if err := closeWrap(stdin, stdinPipe, stdout, stdoutPipe); err != nil {
t.Fatal(err)
}
// wait for CmdRun to return
setTimeout(t, "Waiting for CmdRun timed out", 5*time.Second, func() {
<-c1
})
// In tty mode, we expect the process to stay alive even after client's stdin closes.
// Give some time to monitor to do his thing
container.WaitStop(500 * time.Millisecond)
if !container.IsRunning() {
t.Fatalf("/bin/cat should still be running after closing stdin (tty mode)")
}
}
func TestRunExit(t *testing.T) {
stdin, stdinPipe := io.Pipe()
stdout, stdoutPipe := io.Pipe()
cli := client.NewDockerCli(stdin, stdoutPipe, ioutil.Discard, testDaemonProto, testDaemonAddr, nil)
defer cleanup(globalEngine, t)
c1 := make(chan struct{})
go func() {
cli.CmdRun("-i", unitTestImageID, "/bin/cat")
close(c1)
}()
setTimeout(t, "Read/Write assertion timed out", 2*time.Second, func() {
if err := assertPipe("hello\n", "hello", stdout, stdinPipe, 150); err != nil {
t.Fatal(err)
}
})
container := globalDaemon.List()[0]
// Closing /bin/cat stdin, expect it to exit
if err := stdin.Close(); err != nil {
t.Fatal(err)
}
// as the process exited, CmdRun must finish and unblock. Wait for it
setTimeout(t, "Waiting for CmdRun timed out", 10*time.Second, func() {
<-c1
go func() {
cli.CmdWait(container.ID)
}()
if _, err := bufio.NewReader(stdout).ReadString('\n'); err != nil {
t.Fatal(err)
}
})
// Make sure that the client has been disconnected
setTimeout(t, "The client should have been disconnected once the remote process exited.", 2*time.Second, func() {
// Expecting pipe i/o error, just check that read does not block
stdin.Read([]byte{})
})
// Cleanup pipes
if err := closeWrap(stdin, stdinPipe, stdout, stdoutPipe); err != nil {
t.Fatal(err)
}
}
// TestHttpsInfoRogueCert connects via two-way authenticated HTTPS to the info endpoint
// by using a rogue client certificate and checks that it fails with the expected error.
func TestHttpsInfoRogueCert(t *testing.T) {
cli := client.NewDockerCli(nil, ioutil.Discard, ioutil.Discard, testDaemonProto,
testDaemonHttpsAddr, getTlsConfig("client-rogue-cert.pem", "client-rogue-key.pem", t))
setTimeout(t, "Reading command output time out", 10*time.Second, func() {
err := cli.CmdInfo()
if err == nil {
t.Fatal("Expected error but got nil")
}
if !strings.Contains(err.Error(), errBadCertificate) {
t.Fatalf("Expected error: %s, got instead: %s", errBadCertificate, err)
}
})
}
// #2098 - Docker cidFiles only contain short version of the containerId
//sudo docker run --cidfile /tmp/docker_test.cid ubuntu echo "test"
// TestRunCidFile tests that run --cidfile returns the longid
func TestRunCidFileCheckIDLength(t *testing.T) {
stdout, stdoutPipe := io.Pipe()
tmpDir, err := ioutil.TempDir("", "TestRunCidFile")
if err != nil {
t.Fatal(err)
}
tmpCidFile := path.Join(tmpDir, "cid")
cli := client.NewDockerCli(nil, stdoutPipe, ioutil.Discard, testDaemonProto, testDaemonAddr, nil)
defer cleanup(globalEngine, t)
c := make(chan struct{})
go func() {
defer close(c)
if err := cli.CmdRun("--cidfile", tmpCidFile, unitTestImageID, "ls"); err != nil {
t.Fatal(err)
}
}()
defer os.RemoveAll(tmpDir)
setTimeout(t, "Reading command output time out", 2*time.Second, func() {
cmdOutput, err := bufio.NewReader(stdout).ReadString('\n')
if err != nil {
t.Fatal(err)
}
if len(cmdOutput) < 1 {
t.Fatalf("'ls' should return something , not '%s'", cmdOutput)
}
//read the tmpCidFile
buffer, err := ioutil.ReadFile(tmpCidFile)
if err != nil {
t.Fatal(err)
}
id := string(buffer)
if len(id) != len("2bf44ea18873287bd9ace8a4cb536a7cbe134bed67e805fdf2f58a57f69b320c") {
t.Fatalf("--cidfile should be a long id, not '%s'", id)
}
//test that its a valid cid? (though the container is gone..)
//remove the file and dir.
})
setTimeout(t, "CmdRun timed out", 5*time.Second, func() {
<-c
})
}
// Expected behaviour: the process dies when the client disconnects
func TestRunDisconnect(t *testing.T) {
stdin, stdinPipe := io.Pipe()
stdout, stdoutPipe := io.Pipe()
key, err := libtrust.GenerateECP256PrivateKey()
if err != nil {
t.Fatal(err)
}
cli := client.NewDockerCli(stdin, stdoutPipe, ioutil.Discard, key, testDaemonProto, testDaemonAddr, nil)
defer cleanup(globalEngine, t)
c1 := make(chan struct{})
go func() {
// We're simulating a disconnect so the return value doesn't matter. What matters is the
// fact that CmdRun returns.
cli.CmdRun("-i", unitTestImageID, "/bin/cat")
close(c1)
}()
setTimeout(t, "Read/Write assertion timed out", 2*time.Second, func() {
if err := assertPipe("hello\n", "hello", stdout, stdinPipe, 150); err != nil {
t.Fatal(err)
}
})
// Close pipes (simulate disconnect)
if err := closeWrap(stdin, stdinPipe, stdout, stdoutPipe); err != nil {
t.Fatal(err)
}
// as the pipes are close, we expect the process to die,
// therefore CmdRun to unblock. Wait for CmdRun
setTimeout(t, "Waiting for CmdRun timed out", 2*time.Second, func() {
<-c1
})
// Client disconnect after run -i should cause stdin to be closed, which should
// cause /bin/cat to exit.
setTimeout(t, "Waiting for /bin/cat to exit timed out", 2*time.Second, func() {
container := globalDaemon.List()[0]
container.WaitStop(-1 * time.Second)
if container.IsRunning() {
t.Fatalf("/bin/cat is still running after closing stdin")
}
})
}
// TestRunWorkdirExistsAndIsFile checks that if 'docker run -w' with existing file can be detected
func TestRunWorkdirExistsAndIsFile(t *testing.T) {
cli := client.NewDockerCli(nil, nil, ioutil.Discard, testDaemonProto, testDaemonAddr, nil)
defer cleanup(globalEngine, t)
c := make(chan struct{})
go func() {
defer close(c)
if err := cli.CmdRun("-w", "/bin/cat", unitTestImageID, "pwd"); err == nil {
t.Fatal("should have failed to run when using /bin/cat as working dir.")
}
}()
setTimeout(t, "CmdRun timed out", 5*time.Second, func() {
<-c
})
}
func (s *BPacker) Build(endpoint string, certpath string, imagename string) {
cert := fmt.Sprintf(certFileFormat, certpath)
key := fmt.Sprintf(keyFileFormat, certpath)
ca := fmt.Sprintf(caFileFormat, certpath)
client, err := docker.NewTLSClient(endpoint, cert, key, ca)
outputbuf, errbuf := bytes.NewBuffer(nil), bytes.NewBuffer(nil)
dockerfileString := s.CreateDockerFile()
fmt.Println(dockerfileString)
ioutil.WriteFile("./Dockerfile", []byte(dockerfileString), os.ModePerm)
defer os.Remove("Dockerfile")
reader := strings.NewReader("")
inputbuf := ioutil.NopCloser(reader)
endpoint = strings.TrimPrefix(endpoint, fmt.Sprintf("%s://", DefaultProto))
dcli := dkr.NewDockerCli(inputbuf, outputbuf, errbuf, key, DefaultProto, endpoint, client.TLSConfig)
err = dcli.CmdBuild("--force-rm=true", "--rm=true", fmt.Sprintf("--tag=\"%s\"", imagename), "./")
fmt.Println(err)
fmt.Println(outputbuf)
}
// Expected behaviour: error out when attempting to bind mount non-existing source paths
func TestRunErrorBindNonExistingSource(t *testing.T) {
cli := client.NewDockerCli(nil, nil, ioutil.Discard, testDaemonProto, testDaemonAddr, nil)
defer cleanup(globalEngine, t)
c := make(chan struct{})
go func() {
defer close(c)
// This check is made at runtime, can't be "unit tested"
if err := cli.CmdRun("-v", "/i/dont/exist:/tmp", unitTestImageID, "echo 'should fail'"); err == nil {
t.Fatal("should have failed to run when using /i/dont/exist as a source for the bind mount")
}
}()
setTimeout(t, "CmdRun timed out", 5*time.Second, func() {
<-c
})
}
func generateManPages(path string) error {
header := &doc.GenManHeader{
Title: "DOCKER",
Section: "1",
Source: "Docker Community",
}
stdin, stdout, stderr := term.StdStreams()
dockerCli := client.NewDockerCli(stdin, stdout, stderr)
cmd := &cobra.Command{Use: "docker"}
command.AddCommands(cmd, dockerCli)
cmd.DisableAutoGenTag = true
return doc.GenManTreeFromOpts(cmd, doc.GenManTreeOptions{
Header: header,
Path: path,
CommandSeparator: "-",
})
}
// TestHttpsInfoRogueServerCert connects via two-way authenticated HTTPS to the info endpoint
// which provides a rogue server certificate and checks that it fails with the expected error
func TestHttpsInfoRogueServerCert(t *testing.T) {
key, err := libtrust.GenerateECP256PrivateKey()
if err != nil {
t.Fatal(err)
}
cli := client.NewDockerCli(nil, ioutil.Discard, ioutil.Discard, key, testDaemonProto,
testDaemonRogueHttpsAddr, getTlsConfig("client-cert.pem", "client-key.pem", t))
setTimeout(t, "Reading command output time out", 10*time.Second, func() {
err := cli.CmdInfo()
if err == nil {
t.Fatal("Expected error but got nil")
}
if !strings.Contains(err.Error(), errCaUnknown) {
t.Fatalf("Expected error: %s, got instead: %s", errBadCertificate, err)
}
})
}
// Expected behaviour: container gets deleted automatically after exit
func TestRunAutoRemove(t *testing.T) {
t.Skip("Fixme. Skipping test for now, race condition")
stdout, stdoutPipe := io.Pipe()
key, err := libtrust.GenerateECP256PrivateKey()
if err != nil {
t.Fatal(err)
}
cli := client.NewDockerCli(nil, stdoutPipe, ioutil.Discard, key, testDaemonProto, testDaemonAddr, nil)
defer cleanup(globalEngine, t)
c := make(chan struct{})
go func() {
defer close(c)
if err := cli.CmdRun("--rm", unitTestImageID, "hostname"); err != nil {
t.Fatal(err)
}
}()
var temporaryContainerID string
setTimeout(t, "Reading command output time out", 2*time.Second, func() {
cmdOutput, err := bufio.NewReader(stdout).ReadString('\n')
if err != nil {
t.Fatal(err)
}
temporaryContainerID = cmdOutput
if err := closeWrap(stdout, stdoutPipe); err != nil {
t.Fatal(err)
}
})
setTimeout(t, "CmdRun timed out", 10*time.Second, func() {
<-c
})
time.Sleep(500 * time.Millisecond)
if len(globalDaemon.List()) > 0 {
t.Fatalf("failed to remove container automatically: container %s still exists", temporaryContainerID)
}
}
func main() {
// Set terminal emulation based on platform as required.
stdin, stdout, stderr := term.StdStreams()
logrus.SetOutput(stderr)
dockerCli := client.NewDockerCli(stdin, stdout, stderr)
cmd := newDockerCommand(dockerCli)
if err := cmd.Execute(); err != nil {
if sterr, ok := err.(cli.StatusError); ok {
if sterr.Status != "" {
fmt.Fprintln(stderr, sterr.Status)
}
// StatusError should only be used for errors, and all errors should
// have a non-zero exit status, so never exit with 0
if sterr.StatusCode == 0 {
os.Exit(1)
}
os.Exit(sterr.StatusCode)
}
fmt.Fprintln(stderr, err)
os.Exit(1)
}
}
// TestAttachDetach checks that attach in tty mode can be detached using the long container ID
func TestAttachDetach(t *testing.T) {
stdout, stdoutPipe := io.Pipe()
cpty, tty, err := pty.Open()
if err != nil {
t.Fatal(err)
}
cli := client.NewDockerCli(tty, stdoutPipe, ioutil.Discard, "", testDaemonProto, testDaemonAddr, nil)
defer cleanup(globalEngine, t)
ch := make(chan struct{})
go func() {
defer close(ch)
if err := cli.CmdRun("-i", "-t", "-d", unitTestImageID, "cat"); err != nil {
t.Fatal(err)
}
}()
container := waitContainerStart(t, 10*time.Second)
setTimeout(t, "Reading container's id timed out", 10*time.Second, func() {
buf := make([]byte, 1024)
n, err := stdout.Read(buf)
if err != nil {
t.Fatal(err)
}
if strings.Trim(string(buf[:n]), " \r\n") != container.ID {
t.Fatalf("Wrong ID received. Expect %s, received %s", container.ID, buf[:n])
}
})
setTimeout(t, "Starting container timed out", 10*time.Second, func() {
<-ch
})
state := setRaw(t, container)
defer unsetRaw(t, container, state)
stdout, stdoutPipe = io.Pipe()
cpty, tty, err = pty.Open()
if err != nil {
t.Fatal(err)
}
cli = client.NewDockerCli(tty, stdoutPipe, ioutil.Discard, "", testDaemonProto, testDaemonAddr, nil)
ch = make(chan struct{})
go func() {
defer close(ch)
if err := cli.CmdAttach(container.ID); err != nil {
if err != io.ErrClosedPipe {
t.Fatal(err)
}
}
}()
setTimeout(t, "First read/write assertion timed out", 2*time.Second, func() {
if err := assertPipe("hello\n", "hello", stdout, cpty, 150); err != nil {
if err != io.ErrClosedPipe {
t.Fatal(err)
}
}
})
setTimeout(t, "Escape sequence timeout", 5*time.Second, func() {
cpty.Write([]byte{16})
time.Sleep(100 * time.Millisecond)
cpty.Write([]byte{17})
})
// wait for CmdRun to return
setTimeout(t, "Waiting for CmdAttach timed out", 15*time.Second, func() {
<-ch
})
closeWrap(cpty, stdout, stdoutPipe)
time.Sleep(500 * time.Millisecond)
if !container.IsRunning() {
t.Fatal("The detached container should be still running")
}
setTimeout(t, "Waiting for container to die timedout", 5*time.Second, func() {
container.Kill()
})
}
func main() {
if len(dockerConfDir) == 0 {
dockerConfDir = filepath.Join(os.Getenv("HOME"), ".docker")
}
if selfPath := utils.SelfPath(); strings.Contains(selfPath, ".dockerinit") {
// Running in init mode
sysinit.SysInit()
return
}
var (
flVersion = flag.Bool([]string{"v", "-version"}, false, "Print version information and quit")
flDaemon = flag.Bool([]string{"d", "-daemon"}, false, "Enable daemon mode")
flGraphOpts opts.ListOpts
flDebug = flag.Bool([]string{"D", "-debug"}, false, "Enable debug mode")
flAutoRestart = flag.Bool([]string{"r", "-restart"}, true, "Restart previously running containers")
bridgeName = flag.String([]string{"b", "-bridge"}, "", "Attach containers to a pre-existing network bridge\nuse 'none' to disable container networking")
bridgeIp = flag.String([]string{"#bip", "-bip"}, "", "Use this CIDR notation address for the network bridge's IP, not compatible with -b")
pidfile = flag.String([]string{"p", "-pidfile"}, "/var/run/docker.pid", "Path to use for daemon PID file")
flRoot = flag.String([]string{"g", "-graph"}, "/var/lib/docker", "Path to use as the root of the Docker runtime")
flSocketGroup = flag.String([]string{"G", "-group"}, "docker", "Group to assign the unix socket specified by -H when running in daemon mode\nuse '' (the empty string) to disable setting of a group")
flEnableCors = flag.Bool([]string{"#api-enable-cors", "-api-enable-cors"}, false, "Enable CORS headers in the remote API")
flDns = opts.NewListOpts(opts.ValidateIPAddress)
flDnsSearch = opts.NewListOpts(opts.ValidateDnsSearch)
flEnableIptables = flag.Bool([]string{"#iptables", "-iptables"}, true, "Enable Docker's addition of iptables rules")
flEnableIpForward = flag.Bool([]string{"#ip-forward", "-ip-forward"}, true, "Enable net.ipv4.ip_forward")
flDefaultIp = flag.String([]string{"#ip", "-ip"}, "0.0.0.0", "Default IP address to use when binding container ports")
flInterContainerComm = flag.Bool([]string{"#icc", "-icc"}, true, "Enable inter-container communication")
flGraphDriver = flag.String([]string{"s", "-storage-driver"}, "", "Force the Docker runtime to use a specific storage driver")
flExecDriver = flag.String([]string{"e", "-exec-driver"}, "native", "Force the Docker runtime to use a specific exec driver")
flHosts = opts.NewListOpts(api.ValidateHost)
flMtu = flag.Int([]string{"#mtu", "-mtu"}, 0, "Set the containers network MTU\nif no value is provided: default to the default route MTU or 1500 if no default route is available")
flTls = flag.Bool([]string{"-tls"}, false, "Use TLS; implied by tls-verify flags")
flTlsVerify = flag.Bool([]string{"-tlsverify"}, false, "Use TLS and verify the remote (daemon: verify client, client: verify daemon)")
flCa = flag.String([]string{"-tlscacert"}, filepath.Join(dockerConfDir, defaultCaFile), "Trust only remotes providing a certificate signed by the CA given here")
flCert = flag.String([]string{"-tlscert"}, filepath.Join(dockerConfDir, defaultCertFile), "Path to TLS certificate file")
flKey = flag.String([]string{"-tlskey"}, filepath.Join(dockerConfDir, defaultKeyFile), "Path to TLS key file")
flSelinuxEnabled = flag.Bool([]string{"-selinux-enabled"}, false, "Enable selinux support. SELinux does not presently support the BTRFS storage driver")
)
flag.Var(&flDns, []string{"#dns", "-dns"}, "Force Docker to use specific DNS servers")
flag.Var(&flDnsSearch, []string{"-dns-search"}, "Force Docker to use specific DNS search domains")
flag.Var(&flHosts, []string{"H", "-host"}, "The socket(s) to bind to in daemon mode\nspecified using one or more tcp://host:port, unix:///path/to/socket, fd://* or fd://socketfd.")
flag.Var(&flGraphOpts, []string{"-storage-opt"}, "Set storage driver options")
flag.Parse()
if *flVersion {
showVersion()
return
}
if flHosts.Len() == 0 {
defaultHost := os.Getenv("DOCKER_HOST")
if defaultHost == "" || *flDaemon {
// If we do not have a host, default to unix socket
defaultHost = fmt.Sprintf("unix://%s", api.DEFAULTUNIXSOCKET)
}
if _, err := api.ValidateHost(defaultHost); err != nil {
log.Fatal(err)
}
flHosts.Set(defaultHost)
}
if *bridgeName != "" && *bridgeIp != "" {
log.Fatal("You specified -b & --bip, mutually exclusive options. Please specify only one.")
}
if !*flEnableIptables && !*flInterContainerComm {
log.Fatal("You specified --iptables=false with --icc=false. ICC uses iptables to function. Please set --icc or --iptables to true.")
}
if net.ParseIP(*flDefaultIp) == nil {
log.Fatalf("Specified --ip=%s is not in correct format \"0.0.0.0\".", *flDefaultIp)
}
if *flDebug {
os.Setenv("DEBUG", "1")
}
if *flDaemon {
if runtime.GOOS != "linux" {
log.Fatalf("The Docker daemon is only supported on linux")
}
if os.Geteuid() != 0 {
log.Fatalf("The Docker daemon needs to be run as root")
}
if flag.NArg() != 0 {
flag.Usage()
return
}
// set up the TempDir to use a canonical path
tmp := os.TempDir()
realTmp, err := utils.ReadSymlinkedDirectory(tmp)
if err != nil {
log.Fatalf("Unable to get the full path to the TempDir (%s): %s", tmp, err)
}
os.Setenv("TMPDIR", realTmp)
// get the canonical path to the Docker root directory
root := *flRoot
var realRoot string
if _, err := os.Stat(root); err != nil && os.IsNotExist(err) {
realRoot = root
} else {
realRoot, err = utils.ReadSymlinkedDirectory(root)
if err != nil {
log.Fatalf("Unable to get the full path to root (%s): %s", root, err)
}
}
if err := checkKernelAndArch(); err != nil {
log.Fatal(err)
}
eng := engine.New()
// Load builtins
if err := builtins.Register(eng); err != nil {
log.Fatal(err)
}
// handle the pidfile early. https://github.com/docker/docker/issues/6973
if len(*pidfile) > 0 {
job := eng.Job("initserverpidfile", *pidfile)
if err := job.Run(); err != nil {
log.Fatal(err)
}
}
// load the daemon in the background so we can immediately start
// the http api so that connections don't fail while the daemon
// is booting
go func() {
// Load plugin: httpapi
job := eng.Job("initserver")
// include the variable here too, for the server config
job.Setenv("Pidfile", *pidfile)
job.Setenv("Root", realRoot)
job.SetenvBool("AutoRestart", *flAutoRestart)
job.SetenvList("Dns", flDns.GetAll())
job.SetenvList("DnsSearch", flDnsSearch.GetAll())
job.SetenvBool("EnableIptables", *flEnableIptables)
job.SetenvBool("EnableIpForward", *flEnableIpForward)
job.Setenv("BridgeIface", *bridgeName)
job.Setenv("BridgeIP", *bridgeIp)
job.Setenv("DefaultIp", *flDefaultIp)
job.SetenvBool("InterContainerCommunication", *flInterContainerComm)
job.Setenv("GraphDriver", *flGraphDriver)
job.SetenvList("GraphOptions", flGraphOpts.GetAll())
job.Setenv("ExecDriver", *flExecDriver)
job.SetenvInt("Mtu", *flMtu)
job.SetenvBool("EnableSelinuxSupport", *flSelinuxEnabled)
job.SetenvList("Sockets", flHosts.GetAll())
if err := job.Run(); err != nil {
log.Fatal(err)
}
// after the daemon is done setting up we can tell the api to start
// accepting connections
if err := eng.Job("acceptconnections").Run(); err != nil {
log.Fatal(err)
}
}()
// TODO actually have a resolved graphdriver to show?
log.Printf("docker daemon: %s %s; execdriver: %s; graphdriver: %s",
dockerversion.VERSION,
dockerversion.GITCOMMIT,
*flExecDriver,
*flGraphDriver)
// Serve api
job := eng.Job("serveapi", flHosts.GetAll()...)
job.SetenvBool("Logging", true)
job.SetenvBool("EnableCors", *flEnableCors)
job.Setenv("Version", dockerversion.VERSION)
job.Setenv("SocketGroup", *flSocketGroup)
job.SetenvBool("Tls", *flTls)
job.SetenvBool("TlsVerify", *flTlsVerify)
job.Setenv("TlsCa", *flCa)
job.Setenv("TlsCert", *flCert)
job.Setenv("TlsKey", *flKey)
job.SetenvBool("BufferRequests", true)
if err := job.Run(); err != nil {
log.Fatal(err)
}
} else {
if flHosts.Len() > 1 {
log.Fatal("Please specify only one -H")
}
protoAddrParts := strings.SplitN(flHosts.GetAll()[0], "://", 2)
var (
cli *client.DockerCli
tlsConfig tls.Config
)
tlsConfig.InsecureSkipVerify = true
// If we should verify the server, we need to load a trusted ca
if *flTlsVerify {
*flTls = true
certPool := x509.NewCertPool()
file, err := ioutil.ReadFile(*flCa)
if err != nil {
log.Fatalf("Couldn't read ca cert %s: %s", *flCa, err)
}
certPool.AppendCertsFromPEM(file)
tlsConfig.RootCAs = certPool
tlsConfig.InsecureSkipVerify = false
}
// If tls is enabled, try to load and send client certificates
if *flTls || *flTlsVerify {
_, errCert := os.Stat(*flCert)
_, errKey := os.Stat(*flKey)
if errCert == nil && errKey == nil {
*flTls = true
cert, err := tls.LoadX509KeyPair(*flCert, *flKey)
if err != nil {
log.Fatalf("Couldn't load X509 key pair: %s. Key encrypted?", err)
}
tlsConfig.Certificates = []tls.Certificate{cert}
}
}
if *flTls || *flTlsVerify {
cli = client.NewDockerCli(os.Stdin, os.Stdout, os.Stderr, protoAddrParts[0], protoAddrParts[1], &tlsConfig)
} else {
cli = client.NewDockerCli(os.Stdin, os.Stdout, os.Stderr, protoAddrParts[0], protoAddrParts[1], nil)
}
if err := cli.ParseCommands(flag.Args()...); err != nil {
if sterr, ok := err.(*utils.StatusError); ok {
if sterr.Status != "" {
log.Println(sterr.Status)
}
os.Exit(sterr.StatusCode)
}
log.Fatal(err)
}
}
}
func main() {
// Set terminal emulation based on platform as required.
stdin, stdout, stderr := term.StdStreams()
logrus.SetOutput(stderr)
flag.Merge(flag.CommandLine, clientFlags.FlagSet, commonFlags.FlagSet)
cobraAdaptor := cobraadaptor.NewCobraAdaptor(clientFlags)
flag.Usage = func() {
fmt.Fprint(stdout, "Usage: docker [OPTIONS] COMMAND [arg...]\n docker [ --help | -v | --version ]\n\n")
fmt.Fprint(stdout, "A self-sufficient runtime for containers.\n\nOptions:\n")
flag.CommandLine.SetOutput(stdout)
flag.PrintDefaults()
help := "\nCommands:\n"
dockerCommands := append(cli.DockerCommandUsage, cobraAdaptor.Usage()...)
for _, cmd := range sortCommands(dockerCommands) {
help += fmt.Sprintf(" %-10.10s%s\n", cmd.Name, cmd.Description)
}
help += "\nRun 'docker COMMAND --help' for more information on a command."
fmt.Fprintf(stdout, "%s\n", help)
}
flag.Parse()
if *flVersion {
showVersion()
return
}
if *flHelp {
// if global flag --help is present, regardless of what other options and commands there are,
// just print the usage.
flag.Usage()
return
}
clientCli := client.NewDockerCli(stdin, stdout, stderr, clientFlags)
c := cli.New(clientCli, NewDaemonProxy(), cobraAdaptor)
if err := c.Run(flag.Args()...); err != nil {
if sterr, ok := err.(cli.StatusError); ok {
if sterr.Status != "" {
fmt.Fprintln(stderr, sterr.Status)
}
// StatusError should only be used for errors, and all errors should
// have a non-zero exit status, so never exit with 0
if sterr.StatusCode == 0 {
os.Exit(1)
}
os.Exit(sterr.StatusCode)
}
fmt.Fprintln(stderr, err)
os.Exit(1)
}
}
func main() {
if reexec.Init() {
return
}
// Set terminal emulation based on platform as required.
stdin, stdout, stderr := term.StdStreams()
initLogging(stderr)
flag.Parse()
// FIXME: validate daemon flags here
if *flVersion {
showVersion()
return
}
if *flLogLevel != "" {
lvl, err := logrus.ParseLevel(*flLogLevel)
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to parse logging level: %s\n", *flLogLevel)
os.Exit(1)
}
setLogLevel(lvl)
} else {
setLogLevel(logrus.InfoLevel)
}
if *flDebug {
os.Setenv("DEBUG", "1")
setLogLevel(logrus.DebugLevel)
}
if len(flHosts) == 0 {
defaultHost := os.Getenv("DOCKER_HOST")
if defaultHost == "" || *flDaemon {
if runtime.GOOS != "windows" {
// If we do not have a host, default to unix socket
defaultHost = fmt.Sprintf("unix://%s", opts.DefaultUnixSocket)
} else {
// If we do not have a host, default to TCP socket on Windows
defaultHost = fmt.Sprintf("tcp://%s:%d", opts.DefaultHTTPHost, opts.DefaultHTTPPort)
}
}
defaultHost, err := opts.ValidateHost(defaultHost)
if err != nil {
if *flDaemon {
logrus.Fatal(err)
} else {
fmt.Fprint(os.Stderr, err)
}
os.Exit(1)
}
flHosts = append(flHosts, defaultHost)
}
setDefaultConfFlag(flTrustKey, defaultTrustKeyFile)
if *flDaemon {
if *flHelp {
flag.Usage()
return
}
mainDaemon()
return
}
if len(flHosts) > 1 {
fmt.Fprintf(os.Stderr, "Please specify only one -H")
os.Exit(0)
}
protoAddrParts := strings.SplitN(flHosts[0], "://", 2)
var (
cli *client.DockerCli
tlsConfig tls.Config
)
tlsConfig.InsecureSkipVerify = true
// Regardless of whether the user sets it to true or false, if they
// specify --tlsverify at all then we need to turn on tls
if flag.IsSet("-tlsverify") {
*flTls = true
}
// If we should verify the server, we need to load a trusted ca
if *flTlsVerify {
certPool := x509.NewCertPool()
file, err := ioutil.ReadFile(*flCa)
if err != nil {
fmt.Fprintf(os.Stderr, "Couldn't read ca cert %s: %s\n", *flCa, err)
os.Exit(1)
}
certPool.AppendCertsFromPEM(file)
tlsConfig.RootCAs = certPool
tlsConfig.InsecureSkipVerify = false
}
// If tls is enabled, try to load and send client certificates
if *flTls || *flTlsVerify {
_, errCert := os.Stat(*flCert)
_, errKey := os.Stat(*flKey)
if errCert == nil && errKey == nil {
*flTls = true
cert, err := tls.LoadX509KeyPair(*flCert, *flKey)
if err != nil {
fmt.Fprintf(os.Stderr, "Couldn't load X509 key pair: %q. Make sure the key is encrypted\n", err)
os.Exit(1)
}
tlsConfig.Certificates = []tls.Certificate{cert}
}
// Avoid fallback to SSL protocols < TLS1.0
tlsConfig.MinVersion = tls.VersionTLS10
}
if *flTls || *flTlsVerify {
cli = client.NewDockerCli(stdin, stdout, stderr, *flTrustKey, protoAddrParts[0], protoAddrParts[1], &tlsConfig)
} else {
cli = client.NewDockerCli(stdin, stdout, stderr, *flTrustKey, protoAddrParts[0], protoAddrParts[1], nil)
}
if err := cli.Cmd(flag.Args()...); err != nil {
if sterr, ok := err.(client.StatusError); ok {
if sterr.Status != "" {
fmt.Fprintln(cli.Err(), sterr.Status)
os.Exit(1)
}
os.Exit(sterr.StatusCode)
}
fmt.Fprintln(cli.Err(), err)
os.Exit(1)
}
}
func main() {
if reexec.Init() {
return
}
flag.Parse()
// FIXME: validate daemon flags here
if *flVersion {
showVersion()
return
}
if *flLogLevel != "" {
lvl, err := log.ParseLevel(*flLogLevel)
if err != nil {
log.Fatalf("Unable to parse logging level: %s", *flLogLevel)
}
initLogging(lvl)
} else {
initLogging(log.InfoLevel)
}
// -D, --debug, -l/--log-level=debug processing
// When/if -D is removed this block can be deleted
if *flDebug {
os.Setenv("DEBUG", "1")
initLogging(log.DebugLevel)
}
if len(flHosts) == 0 {
defaultHost := os.Getenv("DOCKER_HOST")
if defaultHost == "" || *flDaemon {
// If we do not have a host, default to unix socket
defaultHost = fmt.Sprintf("unix://%s", api.DEFAULTUNIXSOCKET)
}
defaultHost, err := api.ValidateHost(defaultHost)
if err != nil {
log.Fatal(err)
}
flHosts = append(flHosts, defaultHost)
}
setDefaultConfFlag(flTrustKey, defaultTrustKeyFile)
if *flDaemon {
mainDaemon()
return
}
if len(flHosts) > 1 {
log.Fatal("Please specify only one -H")
}
protoAddrParts := strings.SplitN(flHosts[0], "://", 2)
var (
cli *client.DockerCli
tlsConfig tls.Config
)
tlsConfig.InsecureSkipVerify = true
// Regardless of whether the user sets it to true or false, if they
// specify --tlsverify at all then we need to turn on tls
if flag.IsSet("-tlsverify") {
*flTls = true
}
// If we should verify the server, we need to load a trusted ca
if *flTlsVerify {
certPool := x509.NewCertPool()
file, err := ioutil.ReadFile(*flCa)
if err != nil {
log.Fatalf("Couldn't read ca cert %s: %s", *flCa, err)
}
certPool.AppendCertsFromPEM(file)
tlsConfig.RootCAs = certPool
tlsConfig.InsecureSkipVerify = false
}
// If tls is enabled, try to load and send client certificates
if *flTls || *flTlsVerify {
_, errCert := os.Stat(*flCert)
_, errKey := os.Stat(*flKey)
if errCert == nil && errKey == nil {
*flTls = true
cert, err := tls.LoadX509KeyPair(*flCert, *flKey)
if err != nil {
log.Fatalf("Couldn't load X509 key pair: %s. Key encrypted?", err)
}
tlsConfig.Certificates = []tls.Certificate{cert}
}
// Avoid fallback to SSL protocols < TLS1.0
tlsConfig.MinVersion = tls.VersionTLS10
}
if *flTls || *flTlsVerify {
cli = client.NewDockerCli(os.Stdin, os.Stdout, os.Stderr, *flTrustKey, protoAddrParts[0], protoAddrParts[1], &tlsConfig)
} else {
cli = client.NewDockerCli(os.Stdin, os.Stdout, os.Stderr, *flTrustKey, protoAddrParts[0], protoAddrParts[1], nil)
}
if err := cli.Cmd(flag.Args()...); err != nil {
if sterr, ok := err.(*utils.StatusError); ok {
if sterr.Status != "" {
log.Println(sterr.Status)
}
os.Exit(sterr.StatusCode)
}
log.Fatal(err)
}
}
func main() {
if reexec.Init() {
return
}
// Set terminal emulation based on platform as required.
stdin, stdout, stderr := term.StdStreams()
initLogging(stderr)
flag.Parse()
// FIXME: validate daemon flags here
if *flVersion {
showVersion()
return
}
if *flConfigDir != "" {
cliconfig.SetConfigDir(*flConfigDir)
}
if *flLogLevel != "" {
lvl, err := logrus.ParseLevel(*flLogLevel)
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to parse logging level: %s\n", *flLogLevel)
os.Exit(1)
}
setLogLevel(lvl)
} else {
setLogLevel(logrus.InfoLevel)
}
if *flDebug {
os.Setenv("DEBUG", "1")
setLogLevel(logrus.DebugLevel)
}
if len(flHosts) == 0 {
defaultHost := os.Getenv("DOCKER_HOST")
if defaultHost == "" || *flDaemon {
if runtime.GOOS != "windows" {
// If we do not have a host, default to unix socket
defaultHost = fmt.Sprintf("unix://%s", opts.DefaultUnixSocket)
} else {
// If we do not have a host, default to TCP socket on Windows
defaultHost = fmt.Sprintf("tcp://%s:%d", opts.DefaultHTTPHost, opts.DefaultHTTPPort)
}
}
defaultHost, err := opts.ValidateHost(defaultHost)
if err != nil {
if *flDaemon {
logrus.Fatal(err)
} else {
fmt.Fprint(os.Stderr, err)
}
os.Exit(1)
}
flHosts = append(flHosts, defaultHost)
}
setDefaultConfFlag(flTrustKey, defaultTrustKeyFile)
// Regardless of whether the user sets it to true or false, if they
// specify --tlsverify at all then we need to turn on tls
// *flTlsVerify can be true even if not set due to DOCKER_TLS_VERIFY env var, so we need to check that here as well
if flag.IsSet("-tlsverify") || *flTlsVerify {
*flTls = true
}
if *flDaemon {
if *flHelp {
flag.Usage()
return
}
mainDaemon()
return
}
// From here on, we assume we're a client, not a server.
if len(flHosts) > 1 {
fmt.Fprintf(os.Stderr, "Please specify only one -H")
os.Exit(0)
}
protoAddrParts := strings.SplitN(flHosts[0], "://", 2)
var tlsConfig *tls.Config
if *flTls {
tlsOptions.InsecureSkipVerify = !*flTlsVerify
if !flag.IsSet("-tlscert") {
if _, err := os.Stat(tlsOptions.CertFile); os.IsNotExist(err) {
tlsOptions.CertFile = ""
}
}
if !flag.IsSet("-tlskey") {
if _, err := os.Stat(tlsOptions.KeyFile); os.IsNotExist(err) {
tlsOptions.KeyFile = ""
}
}
var err error
tlsConfig, err = tlsconfig.Client(tlsOptions)
if err != nil {
fmt.Fprintln(stderr, err)
os.Exit(1)
}
}
cli := client.NewDockerCli(stdin, stdout, stderr, *flTrustKey, protoAddrParts[0], protoAddrParts[1], tlsConfig)
if err := cli.Cmd(flag.Args()...); err != nil {
if sterr, ok := err.(client.StatusError); ok {
if sterr.Status != "" {
fmt.Fprintln(cli.Err(), sterr.Status)
os.Exit(1)
}
os.Exit(sterr.StatusCode)
}
fmt.Fprintln(cli.Err(), err)
os.Exit(1)
}
}
// Expected behaviour, the process stays alive when the client disconnects
func TestAttachDisconnect(t *testing.T) {
stdin, stdinPipe := io.Pipe()
stdout, stdoutPipe := io.Pipe()
cli := client.NewDockerCli(stdin, stdoutPipe, ioutil.Discard, testDaemonProto, testDaemonAddr, nil)
defer cleanup(globalEngine, t)
go func() {
// Start a process in daemon mode
if err := cli.CmdRun("-d", "-i", unitTestImageID, "/bin/cat"); err != nil {
utils.Debugf("Error CmdRun: %s", err)
}
}()
setTimeout(t, "Waiting for CmdRun timed out", 10*time.Second, func() {
if _, err := bufio.NewReader(stdout).ReadString('\n'); err != nil {
t.Fatal(err)
}
})
setTimeout(t, "Waiting for the container to be started timed out", 10*time.Second, func() {
for {
l := globalDaemon.List()
if len(l) == 1 && l[0].State.IsRunning() {
break
}
time.Sleep(10 * time.Millisecond)
}
})
container := globalDaemon.List()[0]
// Attach to it
c1 := make(chan struct{})
go func() {
// We're simulating a disconnect so the return value doesn't matter. What matters is the
// fact that CmdAttach returns.
cli.CmdAttach(container.ID)
close(c1)
}()
setTimeout(t, "First read/write assertion timed out", 2*time.Second, func() {
if err := assertPipe("hello\n", "hello", stdout, stdinPipe, 150); err != nil {
t.Fatal(err)
}
})
// Close pipes (client disconnects)
if err := closeWrap(stdin, stdinPipe, stdout, stdoutPipe); err != nil {
t.Fatal(err)
}
// Wait for attach to finish, the client disconnected, therefore, Attach finished his job
setTimeout(t, "Waiting for CmdAttach timed out", 2*time.Second, func() {
<-c1
})
// We closed stdin, expect /bin/cat to still be running
// Wait a little bit to make sure container.monitor() did his thing
_, err := container.State.WaitStop(500 * time.Millisecond)
if err == nil || !container.State.IsRunning() {
t.Fatalf("/bin/cat is not running after closing stdin")
}
// Try to avoid the timeout in destroy. Best effort, don't check error
cStdin, _ := container.StdinPipe()
cStdin.Close()
container.State.WaitStop(-1 * time.Second)
}
// TestAttachDetachTruncatedID checks that attach in tty mode can be detached
func TestAttachDetachTruncatedID(t *testing.T) {
stdin, stdinPipe := io.Pipe()
stdout, stdoutPipe := io.Pipe()
cli := client.NewDockerCli(stdin, stdoutPipe, ioutil.Discard, testDaemonProto, testDaemonAddr, nil)
defer cleanup(globalEngine, t)
// Discard the CmdRun output
go stdout.Read(make([]byte, 1024))
setTimeout(t, "Starting container timed out", 2*time.Second, func() {
if err := cli.CmdRun("-i", "-t", "-d", unitTestImageID, "cat"); err != nil {
t.Fatal(err)
}
})
container := waitContainerStart(t, 10*time.Second)
state := setRaw(t, container)
defer unsetRaw(t, container, state)
stdin, stdinPipe = io.Pipe()
stdout, stdoutPipe = io.Pipe()
cli = client.NewDockerCli(stdin, stdoutPipe, ioutil.Discard, testDaemonProto, testDaemonAddr, nil)
ch := make(chan struct{})
go func() {
defer close(ch)
if err := cli.CmdAttach(utils.TruncateID(container.ID)); err != nil {
if err != io.ErrClosedPipe {
t.Fatal(err)
}
}
}()
setTimeout(t, "First read/write assertion timed out", 2*time.Second, func() {
if err := assertPipe("hello\n", "hello", stdout, stdinPipe, 150); err != nil {
if err != io.ErrClosedPipe {
t.Fatal(err)
}
}
})
setTimeout(t, "Escape sequence timeout", 5*time.Second, func() {
stdinPipe.Write([]byte{16})
time.Sleep(100 * time.Millisecond)
stdinPipe.Write([]byte{17})
})
// wait for CmdRun to return
setTimeout(t, "Waiting for CmdAttach timed out", 15*time.Second, func() {
<-ch
})
closeWrap(stdin, stdinPipe, stdout, stdoutPipe)
time.Sleep(500 * time.Millisecond)
if !container.State.IsRunning() {
t.Fatal("The detached container should be still running")
}
setTimeout(t, "Waiting for container to die timedout", 5*time.Second, func() {
container.Kill()
})
}
func main() {
if reexec.Init() {
return
}
flag.Parse()
// FIXME: validate daemon flags here
if *flVersion {
showVersion()
return
}
if *flDebug {
os.Setenv("DEBUG", "1")
}
if len(flHosts) == 0 {
defaultHost := os.Getenv("DOCKER_HOST")
if defaultHost == "" || *flDaemon {
// If we do not have a host, default to unix socket
defaultHost = fmt.Sprintf("unix://%s", api.DEFAULTUNIXSOCKET)
}
defaultHost, err := api.ValidateHost(defaultHost)
if err != nil {
log.Fatal(err)
}
flHosts = append(flHosts, defaultHost)
}
if *flDaemon {
mainDaemon()
return
}
if len(flHosts) > 1 {
log.Fatal("Please specify only one -H")
}
protoAddrParts := strings.SplitN(flHosts[0], "://", 2)
var (
cli *client.DockerCli
tlsConfig tls.Config
)
tlsConfig.InsecureSkipVerify = true
// If we should verify the server, we need to load a trusted ca
if *flTlsVerify {
*flTls = true
certPool := x509.NewCertPool()
file, err := ioutil.ReadFile(*flCa)
if err != nil {
log.Fatalf("Couldn't read ca cert %s: %s", *flCa, err)
}
certPool.AppendCertsFromPEM(file)
tlsConfig.RootCAs = certPool
tlsConfig.InsecureSkipVerify = false
}
// If tls is enabled, try to load and send client certificates
if *flTls || *flTlsVerify {
_, errCert := os.Stat(*flCert)
_, errKey := os.Stat(*flKey)
if errCert == nil && errKey == nil {
*flTls = true
cert, err := tls.LoadX509KeyPair(*flCert, *flKey)
if err != nil {
log.Fatalf("Couldn't load X509 key pair: %s. Key encrypted?", err)
}
tlsConfig.Certificates = []tls.Certificate{cert}
}
}
if *flTls || *flTlsVerify {
cli = client.NewDockerCli(os.Stdin, os.Stdout, os.Stderr, nil, protoAddrParts[0], protoAddrParts[1], &tlsConfig)
} else {
cli = client.NewDockerCli(os.Stdin, os.Stdout, os.Stderr, nil, protoAddrParts[0], protoAddrParts[1], nil)
}
if err := cli.Cmd(flag.Args()...); err != nil {
if sterr, ok := err.(*utils.StatusError); ok {
if sterr.Status != "" {
log.Infof("%s", sterr.Status)
}
os.Exit(sterr.StatusCode)
}
log.Fatal(err)
}
}
// NewCobraAdaptor returns a new handler
func NewCobraAdaptor(clientFlags *cliflags.ClientFlags) CobraAdaptor {
stdin, stdout, stderr := term.StdStreams()
dockerCli := client.NewDockerCli(stdin, stdout, stderr, clientFlags)
var rootCmd = &cobra.Command{
Use: "docker [OPTIONS]",
Short: "A self-sufficient runtime for containers",
SilenceUsage: true,
SilenceErrors: true,
}
rootCmd.SetUsageTemplate(usageTemplate)
rootCmd.SetHelpTemplate(helpTemplate)
rootCmd.SetFlagErrorFunc(cli.FlagErrorFunc)
rootCmd.SetOutput(stdout)
rootCmd.AddCommand(
node.NewNodeCommand(dockerCli),
service.NewServiceCommand(dockerCli),
stack.NewStackCommand(dockerCli),
stack.NewTopLevelDeployCommand(dockerCli),
swarm.NewSwarmCommand(dockerCli),
container.NewAttachCommand(dockerCli),
container.NewCommitCommand(dockerCli),
container.NewCopyCommand(dockerCli),
container.NewCreateCommand(dockerCli),
container.NewDiffCommand(dockerCli),
container.NewExecCommand(dockerCli),
container.NewExportCommand(dockerCli),
container.NewKillCommand(dockerCli),
container.NewLogsCommand(dockerCli),
container.NewPauseCommand(dockerCli),
container.NewPortCommand(dockerCli),
container.NewPsCommand(dockerCli),
container.NewRenameCommand(dockerCli),
container.NewRestartCommand(dockerCli),
container.NewRmCommand(dockerCli),
container.NewRunCommand(dockerCli),
container.NewStartCommand(dockerCli),
container.NewStatsCommand(dockerCli),
container.NewStopCommand(dockerCli),
container.NewTopCommand(dockerCli),
container.NewUnpauseCommand(dockerCli),
container.NewUpdateCommand(dockerCli),
container.NewWaitCommand(dockerCli),
image.NewBuildCommand(dockerCli),
image.NewHistoryCommand(dockerCli),
image.NewImagesCommand(dockerCli),
image.NewLoadCommand(dockerCli),
image.NewRemoveCommand(dockerCli),
image.NewSaveCommand(dockerCli),
image.NewPullCommand(dockerCli),
image.NewPushCommand(dockerCli),
image.NewSearchCommand(dockerCli),
image.NewImportCommand(dockerCli),
image.NewTagCommand(dockerCli),
network.NewNetworkCommand(dockerCli),
system.NewEventsCommand(dockerCli),
registry.NewLoginCommand(dockerCli),
registry.NewLogoutCommand(dockerCli),
system.NewVersionCommand(dockerCli),
volume.NewVolumeCommand(dockerCli),
system.NewInfoCommand(dockerCli),
)
plugin.NewPluginCommand(rootCmd, dockerCli)
rootCmd.PersistentFlags().BoolP("help", "h", false, "Print usage")
rootCmd.PersistentFlags().MarkShorthandDeprecated("help", "please use --help")
return CobraAdaptor{
rootCmd: rootCmd,
dockerCli: dockerCli,
}
}