func (cli *DockerCli) CmdCommit(args ...string) error {
cmd := cli.Subcmd("commit", "CONTAINER [REPOSITORY[:TAG]]", "Create a new image from a container's changes", true)
flPause := cmd.Bool([]string{"p", "-pause"}, true, "Pause container during commit")
flComment := cmd.String([]string{"m", "-message"}, "", "Commit message")
flAuthor := cmd.String([]string{"a", "#author", "-author"}, "", "Author (e.g., \"John Hannibal Smith <*****@*****.**>\")")
flChanges := opts.NewListOpts(nil)
cmd.Var(&flChanges, []string{"c", "-change"}, "Apply Dockerfile instruction to the created image")
// FIXME: --run is deprecated, it will be replaced with inline Dockerfile commands.
flConfig := cmd.String([]string{"#run", "#-run"}, "", "This option is deprecated and will be removed in a future version in favor of inline Dockerfile-compatible commands")
cmd.Require(flag.Max, 2)
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
var (
name = cmd.Arg(0)
repository, tag = parsers.ParseRepositoryTag(cmd.Arg(1))
)
//Check if the given image name can be resolved
if repository != "" {
if err := registry.ValidateRepositoryName(repository); err != nil {
return err
}
}
v := url.Values{}
v.Set("container", name)
v.Set("repo", repository)
v.Set("tag", tag)
v.Set("comment", *flComment)
v.Set("author", *flAuthor)
for _, change := range flChanges.GetAll() {
v.Add("changes", change)
}
if *flPause != true {
v.Set("pause", "0")
}
var (
config *runconfig.Config
env engine.Env
)
if *flConfig != "" {
config = &runconfig.Config{}
if err := json.Unmarshal([]byte(*flConfig), config); err != nil {
return err
}
}
stream, _, err := cli.call("POST", "/commit?"+v.Encode(), config, false)
if err != nil {
return err
}
if err := env.Decode(stream); err != nil {
return err
}
fmt.Fprintf(cli.out, "%s\n", env.Get("Id"))
return nil
}
func (cli *DockerCli) CmdTop(args ...string) error {
cmd := cli.Subcmd("top", "CONTAINER [ps OPTIONS]", "Display the running processes of a container", true)
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
val := url.Values{}
if cmd.NArg() > 1 {
val.Set("ps_args", strings.Join(cmd.Args()[1:], " "))
}
stream, _, err := cli.call("GET", "/containers/"+cmd.Arg(0)+"/top?"+val.Encode(), nil, false)
if err != nil {
return err
}
var procs engine.Env
if err := procs.Decode(stream); err != nil {
return err
}
w := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0)
fmt.Fprintln(w, strings.Join(procs.GetList("Titles"), "\t"))
processes := [][]string{}
if err := procs.GetJson("Processes", &processes); err != nil {
return err
}
for _, proc := range processes {
fmt.Fprintln(w, strings.Join(proc, "\t"))
}
w.Flush()
return nil
}
func (cli *DockerCli) CmdTag(args ...string) error {
cmd := cli.Subcmd("tag", "IMAGE[:TAG] [REGISTRYHOST/][USERNAME/]NAME[:TAG]", "Tag an image into a repository", true)
force := cmd.Bool([]string{"f", "#force", "-force"}, false, "Force")
cmd.Require(flag.Exact, 2)
utils.ParseFlags(cmd, args, true)
var (
repository, tag = parsers.ParseRepositoryTag(cmd.Arg(1))
v = url.Values{}
)
//Check if the given image name can be resolved
if err := registry.ValidateRepositoryName(repository); err != nil {
return err
}
v.Set("repo", repository)
v.Set("tag", tag)
if *force {
v.Set("force", "1")
}
if _, _, err := readBody(cli.call("POST", "/images/"+cmd.Arg(0)+"/tag?"+v.Encode(), nil, false)); err != nil {
return err
}
return nil
}
func (cli *DockerCli) CmdDiff(args ...string) error {
cmd := cli.Subcmd("diff", "CONTAINER", "Inspect changes on a container's filesystem", true)
cmd.Require(flag.Exact, 1)
utils.ParseFlags(cmd, args, true)
body, _, err := readBody(cli.call("GET", "/containers/"+cmd.Arg(0)+"/changes", nil, false))
if err != nil {
return err
}
outs := engine.NewTable("", 0)
if _, err := outs.ReadListFrom(body); err != nil {
return err
}
for _, change := range outs.Data {
var kind string
switch change.GetInt("Kind") {
case archive.ChangeModify:
kind = "C"
case archive.ChangeAdd:
kind = "A"
case archive.ChangeDelete:
kind = "D"
}
fmt.Fprintf(cli.out, "%s %s\n", kind, change.Get("Path"))
}
return nil
}
func (cli *DockerCli) CmdRm(args ...string) error {
cmd := cli.Subcmd("rm", "CONTAINER [CONTAINER...]", "Remove one or more containers", true)
v := cmd.Bool([]string{"v", "-volumes"}, false, "Remove the volumes associated with the container")
link := cmd.Bool([]string{"l", "#link", "-link"}, false, "Remove the specified link")
force := cmd.Bool([]string{"f", "-force"}, false, "Force the removal of a running container (uses SIGKILL)")
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
val := url.Values{}
if *v {
val.Set("v", "1")
}
if *link {
val.Set("link", "1")
}
if *force {
val.Set("force", "1")
}
var encounteredError error
for _, name := range cmd.Args() {
_, _, err := readBody(cli.call("DELETE", "/containers/"+name+"?"+val.Encode(), nil, false))
if err != nil {
fmt.Fprintf(cli.err, "%s\n", err)
encounteredError = fmt.Errorf("Error: failed to remove one or more containers")
} else {
fmt.Fprintf(cli.out, "%s\n", name)
}
}
return encounteredError
}
func (cli *DockerCli) CmdStats(args ...string) error {
cmd := cli.Subcmd("stats", "CONTAINER [CONTAINER...]", "Display a live stream of one or more containers' resource usage statistics", true)
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
names := cmd.Args()
sort.Strings(names)
var (
cStats []*containerStats
w = tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0)
)
printHeader := func() {
fmt.Fprint(cli.out, "\033[2J")
fmt.Fprint(cli.out, "\033[H")
fmt.Fprintln(w, "CONTAINER\tCPU %\tMEM USAGE/LIMIT\tMEM %\tNET I/O")
}
for _, n := range names {
s := &containerStats{Name: n}
cStats = append(cStats, s)
go s.Collect(cli)
}
// do a quick pause so that any failed connections for containers that do not exist are able to be
// evicted before we display the initial or default values.
time.Sleep(500 * time.Millisecond)
var errs []string
for _, c := range cStats {
c.mu.Lock()
if c.err != nil {
errs = append(errs, fmt.Sprintf("%s: %v", c.Name, c.err))
}
c.mu.Unlock()
}
if len(errs) > 0 {
return fmt.Errorf("%s", strings.Join(errs, ", "))
}
for _ = range time.Tick(500 * time.Millisecond) {
printHeader()
toRemove := []int{}
for i, s := range cStats {
if err := s.Display(w); err != nil {
toRemove = append(toRemove, i)
}
}
for j := len(toRemove) - 1; j >= 0; j-- {
i := toRemove[j]
cStats = append(cStats[:i], cStats[i+1:]...)
}
if len(cStats) == 0 {
return nil
}
w.Flush()
}
return nil
}
func (cli *DockerCli) CmdEvents(args ...string) error {
cmd := cli.Subcmd("events", "", "Get real time events from the server", true)
since := cmd.String([]string{"#since", "-since"}, "", "Show all events created since timestamp")
until := cmd.String([]string{"-until"}, "", "Stream events until this timestamp")
flFilter := opts.NewListOpts(nil)
cmd.Var(&flFilter, []string{"f", "-filter"}, "Filter output based on conditions provided")
cmd.Require(flag.Exact, 0)
utils.ParseFlags(cmd, args, true)
var (
v = url.Values{}
loc = time.FixedZone(time.Now().Zone())
eventFilterArgs = filters.Args{}
)
// Consolidate all filter flags, and sanity check them early.
// They'll get process in the daemon/server.
for _, f := range flFilter.GetAll() {
var err error
eventFilterArgs, err = filters.ParseFlag(f, eventFilterArgs)
if err != nil {
return err
}
}
var setTime = func(key, value string) {
format := timeutils.RFC3339NanoFixed
if len(value) < len(format) {
format = format[:len(value)]
}
if t, err := time.ParseInLocation(format, value, loc); err == nil {
v.Set(key, strconv.FormatInt(t.Unix(), 10))
} else {
v.Set(key, value)
}
}
if *since != "" {
setTime("since", *since)
}
if *until != "" {
setTime("until", *until)
}
if len(eventFilterArgs) > 0 {
filterJson, err := filters.ToParam(eventFilterArgs)
if err != nil {
return err
}
v.Set("filters", filterJson)
}
if err := cli.stream("GET", "/events?"+v.Encode(), nil, cli.out, nil); err != nil {
return err
}
return nil
}
func (cli *DockerCli) CmdHistory(args ...string) error {
cmd := cli.Subcmd("history", "IMAGE", "Show the history of an image", true)
quiet := cmd.Bool([]string{"q", "-quiet"}, false, "Only show numeric IDs")
noTrunc := cmd.Bool([]string{"#notrunc", "-no-trunc"}, false, "Don't truncate output")
cmd.Require(flag.Exact, 1)
utils.ParseFlags(cmd, args, true)
body, _, err := readBody(cli.call("GET", "/images/"+cmd.Arg(0)+"/history", nil, false))
if err != nil {
return err
}
outs := engine.NewTable("Created", 0)
if _, err := outs.ReadListFrom(body); err != nil {
return err
}
w := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0)
if !*quiet {
fmt.Fprintln(w, "IMAGE\tCREATED\tCREATED BY\tSIZE")
}
for _, out := range outs.Data {
outID := out.Get("Id")
if !*quiet {
if *noTrunc {
fmt.Fprintf(w, "%s\t", outID)
} else {
fmt.Fprintf(w, "%s\t", stringid.TruncateID(outID))
}
fmt.Fprintf(w, "%s ago\t", units.HumanDuration(time.Now().UTC().Sub(time.Unix(out.GetInt64("Created"), 0))))
if *noTrunc {
fmt.Fprintf(w, "%s\t", out.Get("CreatedBy"))
} else {
fmt.Fprintf(w, "%s\t", utils.Trunc(out.Get("CreatedBy"), 45))
}
fmt.Fprintf(w, "%s\n", units.HumanSize(float64(out.GetInt64("Size"))))
} else {
if *noTrunc {
fmt.Fprintln(w, outID)
} else {
fmt.Fprintln(w, stringid.TruncateID(outID))
}
}
}
w.Flush()
return nil
}
func (cli *DockerCli) CmdPort(args ...string) error {
cmd := cli.Subcmd("port", "CONTAINER [PRIVATE_PORT[/PROTO]]", "List port mappings for the CONTAINER, or lookup the public-facing port that\nis NAT-ed to the PRIVATE_PORT", true)
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
stream, _, err := cli.call("GET", "/containers/"+cmd.Arg(0)+"/json", nil, false)
if err != nil {
return err
}
env := engine.Env{}
if err := env.Decode(stream); err != nil {
return err
}
ports := nat.PortMap{}
if err := env.GetSubEnv("NetworkSettings").GetJson("Ports", &ports); err != nil {
return err
}
if cmd.NArg() == 2 {
var (
port = cmd.Arg(1)
proto = "tcp"
parts = strings.SplitN(port, "/", 2)
)
if len(parts) == 2 && len(parts[1]) != 0 {
port = parts[0]
proto = parts[1]
}
natPort := port + "/" + proto
if frontends, exists := ports[nat.Port(port+"/"+proto)]; exists && frontends != nil {
for _, frontend := range frontends {
fmt.Fprintf(cli.out, "%s:%s\n", frontend.HostIp, frontend.HostPort)
}
return nil
}
return fmt.Errorf("Error: No public port '%s' published for %s", natPort, cmd.Arg(0))
}
for from, frontends := range ports {
for _, frontend := range frontends {
fmt.Fprintf(cli.out, "%s -> %s:%s\n", from, frontend.HostIp, frontend.HostPort)
}
}
return nil
}
func (cli *DockerCli) CmdPause(args ...string) error {
cmd := cli.Subcmd("pause", "CONTAINER [CONTAINER...]", "Pause all processes within a container", true)
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, false)
var encounteredError error
for _, name := range cmd.Args() {
if _, _, err := readBody(cli.call("POST", fmt.Sprintf("/containers/%s/pause", name), nil, false)); err != nil {
fmt.Fprintf(cli.err, "%s\n", err)
encounteredError = fmt.Errorf("Error: failed to pause container named %s", name)
} else {
fmt.Fprintf(cli.out, "%s\n", name)
}
}
return encounteredError
}
func (cli *DockerCli) CmdSearch(args ...string) error {
cmd := cli.Subcmd("search", "TERM", "Search the Docker Hub for images", true)
noTrunc := cmd.Bool([]string{"#notrunc", "-no-trunc"}, false, "Don't truncate output")
trusted := cmd.Bool([]string{"#t", "#trusted", "#-trusted"}, false, "Only show trusted builds")
automated := cmd.Bool([]string{"-automated"}, false, "Only show automated builds")
stars := cmd.Int([]string{"s", "#stars", "-stars"}, 0, "Only displays with at least x stars")
cmd.Require(flag.Exact, 1)
utils.ParseFlags(cmd, args, true)
v := url.Values{}
v.Set("term", cmd.Arg(0))
body, _, err := readBody(cli.call("GET", "/images/search?"+v.Encode(), nil, true))
if err != nil {
return err
}
outs := engine.NewTable("star_count", 0)
if _, err := outs.ReadListFrom(body); err != nil {
return err
}
w := tabwriter.NewWriter(cli.out, 10, 1, 3, ' ', 0)
fmt.Fprintf(w, "NAME\tDESCRIPTION\tSTARS\tOFFICIAL\tAUTOMATED\n")
for _, out := range outs.Data {
if ((*automated || *trusted) && (!out.GetBool("is_trusted") && !out.GetBool("is_automated"))) || (*stars > out.GetInt("star_count")) {
continue
}
desc := strings.Replace(out.Get("description"), "\n", " ", -1)
desc = strings.Replace(desc, "\r", " ", -1)
if !*noTrunc && len(desc) > 45 {
desc = utils.Trunc(desc, 42) + "..."
}
fmt.Fprintf(w, "%s\t%s\t%d\t", out.Get("name"), desc, out.GetInt("star_count"))
if out.GetBool("is_official") {
fmt.Fprint(w, "[OK]")
}
fmt.Fprint(w, "\t")
if out.GetBool("is_automated") || out.GetBool("is_trusted") {
fmt.Fprint(w, "[OK]")
}
fmt.Fprint(w, "\n")
}
w.Flush()
return nil
}
// 'docker kill NAME' kills a running container
func (cli *DockerCli) CmdKill(args ...string) error {
cmd := cli.Subcmd("kill", "CONTAINER [CONTAINER...]", "Kill a running container using SIGKILL or a specified signal", true)
signal := cmd.String([]string{"s", "-signal"}, "KILL", "Signal to send to the container")
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
var encounteredError error
for _, name := range cmd.Args() {
if _, _, err := readBody(cli.call("POST", fmt.Sprintf("/containers/%s/kill?signal=%s", name, *signal), nil, false)); err != nil {
fmt.Fprintf(cli.err, "%s\n", err)
encounteredError = fmt.Errorf("Error: failed to kill one or more containers")
} else {
fmt.Fprintf(cli.out, "%s\n", name)
}
}
return encounteredError
}
// 'docker wait': block until a container stops
func (cli *DockerCli) CmdWait(args ...string) error {
cmd := cli.Subcmd("wait", "CONTAINER [CONTAINER...]", "Block until a container stops, then print its exit code.", true)
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
var encounteredError error
for _, name := range cmd.Args() {
status, err := waitForExit(cli, name)
if err != nil {
fmt.Fprintf(cli.err, "%s\n", err)
encounteredError = fmt.Errorf("Error: failed to wait one or more containers")
} else {
fmt.Fprintf(cli.out, "%d\n", status)
}
}
return encounteredError
}
// 'docker rmi IMAGE' removes all images with the name IMAGE
func (cli *DockerCli) CmdRmi(args ...string) error {
var (
cmd = cli.Subcmd("rmi", "IMAGE [IMAGE...]", "Remove one or more images", true)
force = cmd.Bool([]string{"f", "-force"}, false, "Force removal of the image")
noprune = cmd.Bool([]string{"-no-prune"}, false, "Do not delete untagged parents")
)
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
v := url.Values{}
if *force {
v.Set("force", "1")
}
if *noprune {
v.Set("noprune", "1")
}
var encounteredError error
for _, name := range cmd.Args() {
body, _, err := readBody(cli.call("DELETE", "/images/"+name+"?"+v.Encode(), nil, false))
if err != nil {
fmt.Fprintf(cli.err, "%s\n", err)
encounteredError = fmt.Errorf("Error: failed to remove one or more images")
} else {
outs := engine.NewTable("Created", 0)
if _, err := outs.ReadListFrom(body); err != nil {
fmt.Fprintf(cli.err, "%s\n", err)
encounteredError = fmt.Errorf("Error: failed to remove one or more images")
continue
}
for _, out := range outs.Data {
if out.Get("Deleted") != "" {
fmt.Fprintf(cli.out, "Deleted: %s\n", out.Get("Deleted"))
} else {
fmt.Fprintf(cli.out, "Untagged: %s\n", out.Get("Untagged"))
}
}
}
}
return encounteredError
}
func (cli *DockerCli) CmdLogs(args ...string) error {
var (
cmd = cli.Subcmd("logs", "CONTAINER", "Fetch the logs of a container", true)
follow = cmd.Bool([]string{"f", "-follow"}, false, "Follow log output")
times = cmd.Bool([]string{"t", "-timestamps"}, false, "Show timestamps")
tail = cmd.String([]string{"-tail"}, "all", "Number of lines to show from the end of the logs")
)
cmd.Require(flag.Exact, 1)
utils.ParseFlags(cmd, args, true)
name := cmd.Arg(0)
stream, _, err := cli.call("GET", "/containers/"+name+"/json", nil, false)
if err != nil {
return err
}
env := engine.Env{}
if err := env.Decode(stream); err != nil {
return err
}
if env.GetSubEnv("HostConfig").GetSubEnv("LogConfig").Get("Type") != "json-file" {
return fmt.Errorf("\"logs\" command is supported only for \"json-file\" logging driver")
}
v := url.Values{}
v.Set("stdout", "1")
v.Set("stderr", "1")
if *times {
v.Set("timestamps", "1")
}
if *follow {
v.Set("follow", "1")
}
v.Set("tail", *tail)
return cli.streamHelper("GET", "/containers/"+name+"/logs?"+v.Encode(), env.GetSubEnv("Config").GetBool("Tty"), nil, cli.out, cli.err, nil)
}
// 'docker version': show version information
func (cli *DockerCli) CmdVersion(args ...string) error {
cmd := cli.Subcmd("version", "", "Show the Docker version information.", true)
cmd.Require(flag.Exact, 0)
utils.ParseFlags(cmd, args, false)
if dockerversion.VERSION != "" {
fmt.Fprintf(cli.out, "Client version: %s\n", dockerversion.VERSION)
}
fmt.Fprintf(cli.out, "Client API version: %s\n", api.APIVERSION)
fmt.Fprintf(cli.out, "Go version (client): %s\n", runtime.Version())
if dockerversion.GITCOMMIT != "" {
fmt.Fprintf(cli.out, "Git commit (client): %s\n", dockerversion.GITCOMMIT)
}
fmt.Fprintf(cli.out, "OS/Arch (client): %s/%s\n", runtime.GOOS, runtime.GOARCH)
body, _, err := readBody(cli.call("GET", "/version", nil, false))
if err != nil {
return err
}
out := engine.NewOutput()
remoteVersion, err := out.AddEnv()
if err != nil {
log.Errorf("Error reading remote version: %s", err)
return err
}
if _, err := out.Write(body); err != nil {
log.Errorf("Error reading remote version: %s", err)
return err
}
out.Close()
fmt.Fprintf(cli.out, "Server version: %s\n", remoteVersion.Get("Version"))
if apiVersion := remoteVersion.Get("ApiVersion"); apiVersion != "" {
fmt.Fprintf(cli.out, "Server API version: %s\n", apiVersion)
}
fmt.Fprintf(cli.out, "Go version (server): %s\n", remoteVersion.Get("GoVersion"))
fmt.Fprintf(cli.out, "Git commit (server): %s\n", remoteVersion.Get("GitCommit"))
fmt.Fprintf(cli.out, "OS/Arch (server): %s/%s\n", remoteVersion.Get("Os"), remoteVersion.Get("Arch"))
return nil
}
func (cli *DockerCli) CmdCp(args ...string) error {
cmd := cli.Subcmd("cp", "CONTAINER:PATH HOSTDIR|-", "Copy files/folders from a PATH on the container to a HOSTDIR on the host\nrunning the command. Use '-' to write the data\nas a tar file to STDOUT.", true)
cmd.Require(flag.Exact, 2)
utils.ParseFlags(cmd, args, true)
var copyData engine.Env
info := strings.Split(cmd.Arg(0), ":")
if len(info) != 2 {
return fmt.Errorf("Error: Path not specified")
}
copyData.Set("Resource", info[1])
copyData.Set("HostPath", cmd.Arg(1))
stream, statusCode, err := cli.call("POST", "/containers/"+info[0]+"/copy", copyData, false)
if stream != nil {
defer stream.Close()
}
if statusCode == 404 {
return fmt.Errorf("No such container: %v", info[0])
}
if err != nil {
return err
}
if statusCode == 200 {
dest := copyData.Get("HostPath")
if dest == "-" {
_, err = io.Copy(cli.out, stream)
} else {
err = archive.Untar(stream, dest, &archive.TarOptions{NoLchown: true})
}
if err != nil {
return err
}
}
return nil
}
func (cli *DockerCli) CmdImport(args ...string) error {
cmd := cli.Subcmd("import", "URL|- [REPOSITORY[:TAG]]", "Create an empty filesystem image and import the contents of the\ntarball (.tar, .tar.gz, .tgz, .bzip, .tar.xz, .txz) into it, then\noptionally tag it.", true)
flChanges := opts.NewListOpts(nil)
cmd.Var(&flChanges, []string{"c", "-change"}, "Apply Dockerfile instruction to the created image")
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
var (
v = url.Values{}
src = cmd.Arg(0)
repository = cmd.Arg(1)
)
v.Set("fromSrc", src)
v.Set("repo", repository)
for _, change := range flChanges.GetAll() {
v.Add("changes", change)
}
if cmd.NArg() == 3 {
fmt.Fprintf(cli.err, "[DEPRECATED] The format 'URL|- [REPOSITORY [TAG]]' has been deprecated. Please use URL|- [REPOSITORY[:TAG]]\n")
v.Set("tag", cmd.Arg(2))
}
if repository != "" {
//Check if the given image name can be resolved
repo, _ := parsers.ParseRepositoryTag(repository)
if err := registry.ValidateRepositoryName(repo); err != nil {
return err
}
}
var in io.Reader
if src == "-" {
in = cli.in
}
return cli.stream("POST", "/images/create?"+v.Encode(), in, cli.out, nil)
}
func (cli *DockerCli) CmdLoad(args ...string) error {
cmd := cli.Subcmd("load", "", "Load an image from a tar archive on STDIN", true)
infile := cmd.String([]string{"i", "-input"}, "", "Read from a tar archive file, instead of STDIN")
cmd.Require(flag.Exact, 0)
utils.ParseFlags(cmd, args, true)
var (
input io.Reader = cli.in
err error
)
if *infile != "" {
input, err = os.Open(*infile)
if err != nil {
return err
}
}
if err := cli.stream("POST", "/images/load", input, cli.out, nil); err != nil {
return err
}
return nil
}
func (cli *DockerCli) CmdStop(args ...string) error {
cmd := cli.Subcmd("stop", "CONTAINER [CONTAINER...]", "Stop a running container by sending SIGTERM and then SIGKILL after a\ngrace period", true)
nSeconds := cmd.Int([]string{"t", "-time"}, 10, "Seconds to wait for stop before killing it")
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
v := url.Values{}
v.Set("t", strconv.Itoa(*nSeconds))
var encounteredError error
for _, name := range cmd.Args() {
_, _, err := readBody(cli.call("POST", "/containers/"+name+"/stop?"+v.Encode(), nil, false))
if err != nil {
fmt.Fprintf(cli.err, "%s\n", err)
encounteredError = fmt.Errorf("Error: failed to stop one or more containers")
} else {
fmt.Fprintf(cli.out, "%s\n", name)
}
}
return encounteredError
}
func ParseExec(cmd *flag.FlagSet, args []string) (*ExecConfig, error) {
var (
flStdin = cmd.Bool([]string{"i", "-interactive"}, false, "Keep STDIN open even if not attached")
flTty = cmd.Bool([]string{"t", "-tty"}, false, "Allocate a pseudo-TTY")
flDetach = cmd.Bool([]string{"d", "-detach"}, false, "Detached mode: run command in the background")
execCmd []string
container string
)
cmd.Require(flag.Min, 2)
if err := utils.ParseFlags(cmd, args, true); err != nil {
return nil, err
}
container = cmd.Arg(0)
parsedArgs := cmd.Args()
execCmd = parsedArgs[1:]
execConfig := &ExecConfig{
// TODO(vishh): Expose '-u' flag once it is supported.
User: "",
// TODO(vishh): Expose '-p' flag once it is supported.
Privileged: false,
Tty: *flTty,
Cmd: execCmd,
Container: container,
Detach: *flDetach,
}
// If -d is not set, attach to everything by default
if !*flDetach {
execConfig.AttachStdout = true
execConfig.AttachStderr = true
if *flStdin {
execConfig.AttachStdin = true
}
}
return execConfig, nil
}
// 'docker logout': log out a user from a registry service.
func (cli *DockerCli) CmdLogout(args ...string) error {
cmd := cli.Subcmd("logout", "[SERVER]", "Log out from a Docker registry, if no server is\nspecified \""+registry.IndexServerAddress()+"\" is the default.", true)
cmd.Require(flag.Max, 1)
utils.ParseFlags(cmd, args, false)
serverAddress := registry.IndexServerAddress()
if len(cmd.Args()) > 0 {
serverAddress = cmd.Arg(0)
}
cli.LoadConfigFile()
if _, ok := cli.configFile.Configs[serverAddress]; !ok {
fmt.Fprintf(cli.out, "Not logged in to %s\n", serverAddress)
} else {
fmt.Fprintf(cli.out, "Remove login credentials for %s\n", serverAddress)
delete(cli.configFile.Configs, serverAddress)
if err := registry.SaveConfig(cli.configFile); err != nil {
return fmt.Errorf("Failed to save docker config: %v", err)
}
}
return nil
}
func (cli *DockerCli) CmdExport(args ...string) error {
cmd := cli.Subcmd("export", "CONTAINER", "Export a filesystem as a tar archive (streamed to STDOUT by default)", true)
outfile := cmd.String([]string{"o", "-output"}, "", "Write to a file, instead of STDOUT")
cmd.Require(flag.Exact, 1)
utils.ParseFlags(cmd, args, true)
var (
output io.Writer = cli.out
err error
)
if *outfile != "" {
output, err = os.Create(*outfile)
if err != nil {
return err
}
} else if cli.isTerminalOut {
return errors.New("Cowardly refusing to save to a terminal. Use the -o flag or redirect.")
}
if len(cmd.Args()) == 1 {
image := cmd.Arg(0)
if err := cli.stream("GET", "/containers/"+image+"/export", nil, output, nil); err != nil {
return err
}
} else {
v := url.Values{}
for _, arg := range cmd.Args() {
v.Add("names", arg)
}
if err := cli.stream("GET", "/containers/get?"+v.Encode(), nil, output, nil); err != nil {
return err
}
}
return nil
}
func (cli *DockerCli) CmdImages(args ...string) error {
cmd := cli.Subcmd("images", "[REPOSITORY]", "List images", true)
quiet := cmd.Bool([]string{"q", "-quiet"}, false, "Only show numeric IDs")
all := cmd.Bool([]string{"a", "-all"}, false, "Show all images (default hides intermediate images)")
noTrunc := cmd.Bool([]string{"#notrunc", "-no-trunc"}, false, "Don't truncate output")
showDigests := cmd.Bool([]string{"-digests"}, false, "Show digests")
// FIXME: --viz and --tree are deprecated. Remove them in a future version.
flViz := cmd.Bool([]string{"#v", "#viz", "#-viz"}, false, "Output graph in graphviz format")
flTree := cmd.Bool([]string{"#t", "#tree", "#-tree"}, false, "Output graph in tree format")
flFilter := opts.NewListOpts(nil)
cmd.Var(&flFilter, []string{"f", "-filter"}, "Filter output based on conditions provided")
cmd.Require(flag.Max, 1)
utils.ParseFlags(cmd, args, true)
// Consolidate all filter flags, and sanity check them early.
// They'll get process in the daemon/server.
imageFilterArgs := filters.Args{}
for _, f := range flFilter.GetAll() {
var err error
imageFilterArgs, err = filters.ParseFlag(f, imageFilterArgs)
if err != nil {
return err
}
}
matchName := cmd.Arg(0)
// FIXME: --viz and --tree are deprecated. Remove them in a future version.
if *flViz || *flTree {
v := url.Values{
"all": []string{"1"},
}
if len(imageFilterArgs) > 0 {
filterJson, err := filters.ToParam(imageFilterArgs)
if err != nil {
return err
}
v.Set("filters", filterJson)
}
body, _, err := readBody(cli.call("GET", "/images/json?"+v.Encode(), nil, false))
if err != nil {
return err
}
outs := engine.NewTable("Created", 0)
if _, err := outs.ReadListFrom(body); err != nil {
return err
}
var (
printNode func(cli *DockerCli, noTrunc bool, image *engine.Env, prefix string)
startImage *engine.Env
roots = engine.NewTable("Created", outs.Len())
byParent = make(map[string]*engine.Table)
)
for _, image := range outs.Data {
if image.Get("ParentId") == "" {
roots.Add(image)
} else {
if children, exists := byParent[image.Get("ParentId")]; exists {
children.Add(image)
} else {
byParent[image.Get("ParentId")] = engine.NewTable("Created", 1)
byParent[image.Get("ParentId")].Add(image)
}
}
if matchName != "" {
if matchName == image.Get("Id") || matchName == stringid.TruncateID(image.Get("Id")) {
startImage = image
}
for _, repotag := range image.GetList("RepoTags") {
if repotag == matchName {
startImage = image
}
}
}
}
if *flViz {
fmt.Fprintf(cli.out, "digraph docker {\n")
printNode = (*DockerCli).printVizNode
} else {
printNode = (*DockerCli).printTreeNode
}
if startImage != nil {
root := engine.NewTable("Created", 1)
root.Add(startImage)
cli.WalkTree(*noTrunc, root, byParent, "", printNode)
} else if matchName == "" {
cli.WalkTree(*noTrunc, roots, byParent, "", printNode)
}
if *flViz {
fmt.Fprintf(cli.out, " base [style=invisible]\n}\n")
}
} else {
v := url.Values{}
if len(imageFilterArgs) > 0 {
filterJson, err := filters.ToParam(imageFilterArgs)
if err != nil {
return err
}
v.Set("filters", filterJson)
}
if cmd.NArg() == 1 {
// FIXME rename this parameter, to not be confused with the filters flag
v.Set("filter", matchName)
}
if *all {
v.Set("all", "1")
}
body, _, err := readBody(cli.call("GET", "/images/json?"+v.Encode(), nil, false))
if err != nil {
return err
}
outs := engine.NewTable("Created", 0)
if _, err := outs.ReadListFrom(body); err != nil {
return err
}
w := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0)
if !*quiet {
if *showDigests {
fmt.Fprintln(w, "REPOSITORY\tTAG\tDIGEST\tIMAGE ID\tCREATED\tVIRTUAL SIZE")
} else {
fmt.Fprintln(w, "REPOSITORY\tTAG\tIMAGE ID\tCREATED\tVIRTUAL SIZE")
}
}
for _, out := range outs.Data {
outID := out.Get("Id")
if !*noTrunc {
outID = stringid.TruncateID(outID)
}
repoTags := out.GetList("RepoTags")
repoDigests := out.GetList("RepoDigests")
if len(repoTags) == 1 && repoTags[0] == "<none>:<none>" && len(repoDigests) == 1 && repoDigests[0] == "<none>@<none>" {
// dangling image - clear out either repoTags or repoDigsts so we only show it once below
repoDigests = []string{}
}
// combine the tags and digests lists
tagsAndDigests := append(repoTags, repoDigests...)
for _, repoAndRef := range tagsAndDigests {
repo, ref := parsers.ParseRepositoryTag(repoAndRef)
// default tag and digest to none - if there's a value, it'll be set below
tag := "<none>"
digest := "<none>"
if utils.DigestReference(ref) {
digest = ref
} else {
tag = ref
}
if !*quiet {
if *showDigests {
fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s ago\t%s\n", repo, tag, digest, outID, units.HumanDuration(time.Now().UTC().Sub(time.Unix(out.GetInt64("Created"), 0))), units.HumanSize(float64(out.GetInt64("VirtualSize"))))
} else {
fmt.Fprintf(w, "%s\t%s\t%s\t%s ago\t%s\n", repo, tag, outID, units.HumanDuration(time.Now().UTC().Sub(time.Unix(out.GetInt64("Created"), 0))), units.HumanSize(float64(out.GetInt64("VirtualSize"))))
}
} else {
fmt.Fprintln(w, outID)
}
}
}
if !*quiet {
w.Flush()
}
}
return nil
}
func Parse(cmd *flag.FlagSet, args []string) (*Config, *HostConfig, *flag.FlagSet, error) {
var (
// FIXME: use utils.ListOpts for attach and volumes?
flAttach = opts.NewListOpts(opts.ValidateAttach)
flVolumes = opts.NewListOpts(opts.ValidatePath)
flLinks = opts.NewListOpts(opts.ValidateLink)
flEnv = opts.NewListOpts(opts.ValidateEnv)
flLabels = opts.NewListOpts(opts.ValidateEnv)
flDevices = opts.NewListOpts(opts.ValidatePath)
ulimits = make(map[string]*ulimit.Ulimit)
flUlimits = opts.NewUlimitOpt(ulimits)
flPublish = opts.NewListOpts(nil)
flExpose = opts.NewListOpts(nil)
flDns = opts.NewListOpts(opts.ValidateIPAddress)
flDnsSearch = opts.NewListOpts(opts.ValidateDnsSearch)
flExtraHosts = opts.NewListOpts(opts.ValidateExtraHost)
flVolumesFrom = opts.NewListOpts(nil)
flLxcOpts = opts.NewListOpts(nil)
flEnvFile = opts.NewListOpts(nil)
flCapAdd = opts.NewListOpts(nil)
flCapDrop = opts.NewListOpts(nil)
flSecurityOpt = opts.NewListOpts(nil)
flLabelsFile = opts.NewListOpts(nil)
flNetwork = cmd.Bool([]string{"#n", "#-networking"}, true, "Enable networking for this container")
flPrivileged = cmd.Bool([]string{"#privileged", "-privileged"}, false, "Give extended privileges to this container")
flPidMode = cmd.String([]string{"-pid"}, "", "PID namespace to use")
flPublishAll = cmd.Bool([]string{"P", "-publish-all"}, false, "Publish all exposed ports to random ports")
flStdin = cmd.Bool([]string{"i", "-interactive"}, false, "Keep STDIN open even if not attached")
flTty = cmd.Bool([]string{"t", "-tty"}, false, "Allocate a pseudo-TTY")
flContainerIDFile = cmd.String([]string{"#cidfile", "-cidfile"}, "", "Write the container ID to the file")
flEntrypoint = cmd.String([]string{"#entrypoint", "-entrypoint"}, "", "Overwrite the default ENTRYPOINT of the image")
flHostname = cmd.String([]string{"h", "-hostname"}, "", "Container host name")
flMemoryString = cmd.String([]string{"m", "-memory"}, "", "Memory limit")
flMemorySwap = cmd.String([]string{"-memory-swap"}, "", "Total memory (memory + swap), '-1' to disable swap")
flUser = cmd.String([]string{"u", "-user"}, "", "Username or UID (format: <name|uid>[:<group|gid>])")
flWorkingDir = cmd.String([]string{"w", "-workdir"}, "", "Working directory inside the container")
flCpuShares = cmd.Int64([]string{"c", "-cpu-shares"}, 0, "CPU shares (relative weight)")
flCpusetCpus = cmd.String([]string{"#-cpuset", "-cpuset-cpus"}, "", "CPUs in which to allow execution (0-3, 0,1)")
flNetMode = cmd.String([]string{"-net"}, "bridge", "Set the Network mode for the container")
flMacAddress = cmd.String([]string{"-mac-address"}, "", "Container MAC address (e.g. 92:d0:c6:0a:29:33)")
flIpcMode = cmd.String([]string{"-ipc"}, "", "IPC namespace to use")
flRestartPolicy = cmd.String([]string{"-restart"}, "no", "Restart policy to apply when a container exits")
flReadonlyRootfs = cmd.Bool([]string{"-read-only"}, false, "Mount the container's root filesystem as read only")
flLoggingDriver = cmd.String([]string{"-log-driver"}, "", "Logging driver for container")
flCgroupParent = cmd.String([]string{"-cgroup-parent"}, "", "Optional parent cgroup for the container")
)
cmd.Var(&flAttach, []string{"a", "-attach"}, "Attach to STDIN, STDOUT or STDERR")
cmd.Var(&flVolumes, []string{"v", "-volume"}, "Bind mount a volume")
cmd.Var(&flLinks, []string{"#link", "-link"}, "Add link to another container")
cmd.Var(&flDevices, []string{"-device"}, "Add a host device to the container")
cmd.Var(&flLabels, []string{"l", "-label"}, "Set meta data on a container")
cmd.Var(&flLabelsFile, []string{"-label-file"}, "Read in a line delimited file of labels")
cmd.Var(&flEnv, []string{"e", "-env"}, "Set environment variables")
cmd.Var(&flEnvFile, []string{"-env-file"}, "Read in a file of environment variables")
cmd.Var(&flPublish, []string{"p", "-publish"}, "Publish a container's port(s) to the host")
cmd.Var(&flExpose, []string{"#expose", "-expose"}, "Expose a port or a range of ports")
cmd.Var(&flDns, []string{"#dns", "-dns"}, "Set custom DNS servers")
cmd.Var(&flDnsSearch, []string{"-dns-search"}, "Set custom DNS search domains")
cmd.Var(&flExtraHosts, []string{"-add-host"}, "Add a custom host-to-IP mapping (host:ip)")
cmd.Var(&flVolumesFrom, []string{"#volumes-from", "-volumes-from"}, "Mount volumes from the specified container(s)")
cmd.Var(&flLxcOpts, []string{"#lxc-conf", "-lxc-conf"}, "Add custom lxc options")
cmd.Var(&flCapAdd, []string{"-cap-add"}, "Add Linux capabilities")
cmd.Var(&flCapDrop, []string{"-cap-drop"}, "Drop Linux capabilities")
cmd.Var(&flSecurityOpt, []string{"-security-opt"}, "Security Options")
cmd.Var(flUlimits, []string{"-ulimit"}, "Ulimit options")
cmd.Require(flag.Min, 1)
if err := utils.ParseFlags(cmd, args, true); err != nil {
return nil, nil, cmd, err
}
// Validate input params
if *flWorkingDir != "" && !path.IsAbs(*flWorkingDir) {
return nil, nil, cmd, ErrInvalidWorkingDirectory
}
// Validate the input mac address
if *flMacAddress != "" {
if _, err := opts.ValidateMACAddress(*flMacAddress); err != nil {
return nil, nil, cmd, fmt.Errorf("%s is not a valid mac address", *flMacAddress)
}
}
var (
attachStdin = flAttach.Get("stdin")
attachStdout = flAttach.Get("stdout")
attachStderr = flAttach.Get("stderr")
)
if *flNetMode != "bridge" && *flNetMode != "none" && *flHostname != "" {
return nil, nil, cmd, ErrConflictNetworkHostname
}
if *flNetMode == "host" && flLinks.Len() > 0 {
return nil, nil, cmd, ErrConflictHostNetworkAndLinks
}
if *flNetMode == "container" && flLinks.Len() > 0 {
return nil, nil, cmd, ErrConflictContainerNetworkAndLinks
}
if *flNetMode == "host" && flDns.Len() > 0 {
return nil, nil, cmd, ErrConflictHostNetworkAndDns
}
if *flNetMode == "container" && flDns.Len() > 0 {
return nil, nil, cmd, ErrConflictContainerNetworkAndDns
}
// If neither -d or -a are set, attach to everything by default
if flAttach.Len() == 0 {
attachStdout = true
attachStderr = true
if *flStdin {
attachStdin = true
}
}
var flMemory int64
if *flMemoryString != "" {
parsedMemory, err := units.RAMInBytes(*flMemoryString)
if err != nil {
return nil, nil, cmd, err
}
flMemory = parsedMemory
}
var MemorySwap int64
if *flMemorySwap != "" {
if *flMemorySwap == "-1" {
MemorySwap = -1
} else {
parsedMemorySwap, err := units.RAMInBytes(*flMemorySwap)
if err != nil {
return nil, nil, cmd, err
}
MemorySwap = parsedMemorySwap
}
}
var binds []string
// add any bind targets to the list of container volumes
for bind := range flVolumes.GetMap() {
if arr := strings.Split(bind, ":"); len(arr) > 1 {
if arr[1] == "/" {
return nil, nil, cmd, fmt.Errorf("Invalid bind mount: destination can't be '/'")
}
// after creating the bind mount we want to delete it from the flVolumes values because
// we do not want bind mounts being committed to image configs
binds = append(binds, bind)
flVolumes.Delete(bind)
} else if bind == "/" {
return nil, nil, cmd, fmt.Errorf("Invalid volume: path can't be '/'")
}
}
var (
parsedArgs = cmd.Args()
runCmd []string
entrypoint []string
image = cmd.Arg(0)
)
if len(parsedArgs) > 1 {
runCmd = parsedArgs[1:]
}
if *flEntrypoint != "" {
entrypoint = []string{*flEntrypoint}
}
lxcConf, err := parseKeyValueOpts(flLxcOpts)
if err != nil {
return nil, nil, cmd, err
}
var (
domainname string
hostname = *flHostname
parts = strings.SplitN(hostname, ".", 2)
)
if len(parts) > 1 {
hostname = parts[0]
domainname = parts[1]
}
ports, portBindings, err := nat.ParsePortSpecs(flPublish.GetAll())
if err != nil {
return nil, nil, cmd, err
}
// Merge in exposed ports to the map of published ports
for _, e := range flExpose.GetAll() {
if strings.Contains(e, ":") {
return nil, nil, cmd, fmt.Errorf("Invalid port format for --expose: %s", e)
}
//support two formats for expose, original format <portnum>/[<proto>] or <startport-endport>/[<proto>]
proto, port := nat.SplitProtoPort(e)
//parse the start and end port and create a sequence of ports to expose
//if expose a port, the start and end port are the same
start, end, err := parsers.ParsePortRange(port)
if err != nil {
return nil, nil, cmd, fmt.Errorf("Invalid range format for --expose: %s, error: %s", e, err)
}
for i := start; i <= end; i++ {
p := nat.NewPort(proto, strconv.FormatUint(i, 10))
if _, exists := ports[p]; !exists {
ports[p] = struct{}{}
}
}
}
// parse device mappings
deviceMappings := []DeviceMapping{}
for _, device := range flDevices.GetAll() {
deviceMapping, err := ParseDevice(device)
if err != nil {
return nil, nil, cmd, err
}
deviceMappings = append(deviceMappings, deviceMapping)
}
// collect all the environment variables for the container
envVariables, err := readKVStrings(flEnvFile.GetAll(), flEnv.GetAll())
if err != nil {
return nil, nil, cmd, err
}
// collect all the labels for the container
labels, err := readKVStrings(flLabelsFile.GetAll(), flLabels.GetAll())
if err != nil {
return nil, nil, cmd, err
}
ipcMode := IpcMode(*flIpcMode)
if !ipcMode.Valid() {
return nil, nil, cmd, fmt.Errorf("--ipc: invalid IPC mode")
}
pidMode := PidMode(*flPidMode)
if !pidMode.Valid() {
return nil, nil, cmd, fmt.Errorf("--pid: invalid PID mode")
}
netMode, err := parseNetMode(*flNetMode)
if err != nil {
return nil, nil, cmd, fmt.Errorf("--net: invalid net mode: %v", err)
}
restartPolicy, err := parseRestartPolicy(*flRestartPolicy)
if err != nil {
return nil, nil, cmd, err
}
config := &Config{
Hostname: hostname,
Domainname: domainname,
PortSpecs: nil, // Deprecated
ExposedPorts: ports,
User: *flUser,
Tty: *flTty,
NetworkDisabled: !*flNetwork,
OpenStdin: *flStdin,
Memory: flMemory, // FIXME: for backward compatibility
MemorySwap: MemorySwap, // FIXME: for backward compatibility
CpuShares: *flCpuShares, // FIXME: for backward compatibility
Cpuset: *flCpusetCpus, // FIXME: for backward compatibility
AttachStdin: attachStdin,
AttachStdout: attachStdout,
AttachStderr: attachStderr,
Env: envVariables,
Cmd: runCmd,
Image: image,
Volumes: flVolumes.GetMap(),
MacAddress: *flMacAddress,
Entrypoint: entrypoint,
WorkingDir: *flWorkingDir,
Labels: convertKVStringsToMap(labels),
}
hostConfig := &HostConfig{
Binds: binds,
ContainerIDFile: *flContainerIDFile,
LxcConf: lxcConf,
Memory: flMemory,
MemorySwap: MemorySwap,
CpuShares: *flCpuShares,
CpusetCpus: *flCpusetCpus,
Privileged: *flPrivileged,
PortBindings: portBindings,
Links: flLinks.GetAll(),
PublishAllPorts: *flPublishAll,
Dns: flDns.GetAll(),
DnsSearch: flDnsSearch.GetAll(),
ExtraHosts: flExtraHosts.GetAll(),
VolumesFrom: flVolumesFrom.GetAll(),
NetworkMode: netMode,
IpcMode: ipcMode,
PidMode: pidMode,
Devices: deviceMappings,
CapAdd: flCapAdd.GetAll(),
CapDrop: flCapDrop.GetAll(),
RestartPolicy: restartPolicy,
SecurityOpt: flSecurityOpt.GetAll(),
ReadonlyRootfs: *flReadonlyRootfs,
Ulimits: flUlimits.GetList(),
LogConfig: LogConfig{Type: *flLoggingDriver},
CgroupParent: *flCgroupParent,
}
// When allocating stdin in attached mode, close stdin at client disconnect
if config.OpenStdin && config.AttachStdin {
config.StdinOnce = true
}
return config, hostConfig, cmd, nil
}
// 'docker login': login / register a user to registry service.
func (cli *DockerCli) CmdLogin(args ...string) error {
cmd := cli.Subcmd("login", "[SERVER]", "Register or log in to a Docker registry server, if no server is\nspecified \""+registry.IndexServerAddress()+"\" is the default.", true)
cmd.Require(flag.Max, 1)
var username, password, email string
cmd.StringVar(&username, []string{"u", "-username"}, "", "Username")
cmd.StringVar(&password, []string{"p", "-password"}, "", "Password")
cmd.StringVar(&email, []string{"e", "-email"}, "", "Email")
utils.ParseFlags(cmd, args, true)
serverAddress := registry.IndexServerAddress()
if len(cmd.Args()) > 0 {
serverAddress = cmd.Arg(0)
}
promptDefault := func(prompt string, configDefault string) {
if configDefault == "" {
fmt.Fprintf(cli.out, "%s: ", prompt)
} else {
fmt.Fprintf(cli.out, "%s (%s): ", prompt, configDefault)
}
}
readInput := func(in io.Reader, out io.Writer) string {
reader := bufio.NewReader(in)
line, _, err := reader.ReadLine()
if err != nil {
fmt.Fprintln(out, err.Error())
os.Exit(1)
}
return string(line)
}
cli.LoadConfigFile()
authconfig, ok := cli.configFile.Configs[serverAddress]
if !ok {
authconfig = registry.AuthConfig{}
}
if username == "" {
promptDefault("Username", authconfig.Username)
username = readInput(cli.in, cli.out)
username = strings.Trim(username, " ")
if username == "" {
username = authconfig.Username
}
}
// Assume that a different username means they may not want to use
// the password or email from the config file, so prompt them
if username != authconfig.Username {
if password == "" {
oldState, err := term.SaveState(cli.inFd)
if err != nil {
return err
}
fmt.Fprintf(cli.out, "Password: "******"\n")
term.RestoreTerminal(cli.inFd, oldState)
if password == "" {
return fmt.Errorf("Error : Password Required")
}
}
if email == "" {
promptDefault("Email", authconfig.Email)
email = readInput(cli.in, cli.out)
if email == "" {
email = authconfig.Email
}
}
} else {
// However, if they don't override the username use the
// password or email from the cmd line if specified. IOW, allow
// then to change/override them. And if not specified, just
// use what's in the config file
if password == "" {
password = authconfig.Password
}
if email == "" {
email = authconfig.Email
}
}
authconfig.Username = username
authconfig.Password = password
authconfig.Email = email
authconfig.ServerAddress = serverAddress
cli.configFile.Configs[serverAddress] = authconfig
stream, statusCode, err := cli.call("POST", "/auth", cli.configFile.Configs[serverAddress], false)
if statusCode == 401 {
delete(cli.configFile.Configs, serverAddress)
registry.SaveConfig(cli.configFile)
return err
}
if err != nil {
return err
}
var response types.AuthResponse
if err := json.NewDecoder(stream).Decode(&response); err != nil {
cli.configFile, _ = registry.LoadConfig(homedir.Get())
return err
}
registry.SaveConfig(cli.configFile)
fmt.Fprintf(cli.out, "WARNING: login credentials saved in %s.\n", path.Join(homedir.Get(), registry.CONFIGFILE))
if response.Status != "" {
fmt.Fprintf(cli.out, "%s\n", response.Status)
}
return nil
}
func (cli *DockerCli) CmdPush(args ...string) error {
cmd := cli.Subcmd("push", "NAME[:TAG]", "Push an image or a repository to the registry", true)
cmd.Require(flag.Exact, 1)
utils.ParseFlags(cmd, args, true)
name := cmd.Arg(0)
cli.LoadConfigFile()
remote, tag := parsers.ParseRepositoryTag(name)
// Resolve the Repository name from fqn to RepositoryInfo
repoInfo, err := registry.ParseRepositoryInfo(remote)
if err != nil {
return err
}
// Resolve the Auth config relevant for this server
authConfig := cli.configFile.ResolveAuthConfig(repoInfo.Index)
// If we're not using a custom registry, we know the restrictions
// applied to repository names and can warn the user in advance.
// Custom repositories can have different rules, and we must also
// allow pushing by image ID.
if repoInfo.Official {
username := authConfig.Username
if username == "" {
username = "******"
}
return fmt.Errorf("You cannot push a \"root\" repository. Please rename your repository to <user>/<repo> (ex: %s/%s)", username, repoInfo.LocalName)
}
v := url.Values{}
v.Set("tag", tag)
push := func(authConfig registry.AuthConfig) error {
buf, err := json.Marshal(authConfig)
if err != nil {
return err
}
registryAuthHeader := []string{
base64.URLEncoding.EncodeToString(buf),
}
return cli.stream("POST", "/images/"+remote+"/push?"+v.Encode(), nil, cli.out, map[string][]string{
"X-Registry-Auth": registryAuthHeader,
})
}
if err := push(authConfig); err != nil {
if strings.Contains(err.Error(), "Status 401") {
fmt.Fprintln(cli.out, "\nPlease login prior to push:")
if err := cli.CmdLogin(repoInfo.Index.GetAuthConfigKey()); err != nil {
return err
}
authConfig := cli.configFile.ResolveAuthConfig(repoInfo.Index)
return push(authConfig)
}
return err
}
return nil
}
// 'docker info': display system-wide information.
func (cli *DockerCli) CmdInfo(args ...string) error {
cmd := cli.Subcmd("info", "", "Display system-wide information", true)
cmd.Require(flag.Exact, 0)
utils.ParseFlags(cmd, args, false)
body, _, err := readBody(cli.call("GET", "/info", nil, false))
if err != nil {
return err
}
out := engine.NewOutput()
remoteInfo, err := out.AddEnv()
if err != nil {
return err
}
if _, err := out.Write(body); err != nil {
log.Errorf("Error reading remote info: %s", err)
return err
}
out.Close()
if remoteInfo.Exists("Containers") {
fmt.Fprintf(cli.out, "Containers: %d\n", remoteInfo.GetInt("Containers"))
}
if remoteInfo.Exists("Images") {
fmt.Fprintf(cli.out, "Images: %d\n", remoteInfo.GetInt("Images"))
}
if remoteInfo.Exists("Driver") {
fmt.Fprintf(cli.out, "Storage Driver: %s\n", remoteInfo.Get("Driver"))
}
if remoteInfo.Exists("DriverStatus") {
var driverStatus [][2]string
if err := remoteInfo.GetJson("DriverStatus", &driverStatus); err != nil {
return err
}
for _, pair := range driverStatus {
fmt.Fprintf(cli.out, " %s: %s\n", pair[0], pair[1])
}
}
if remoteInfo.Exists("ExecutionDriver") {
fmt.Fprintf(cli.out, "Execution Driver: %s\n", remoteInfo.Get("ExecutionDriver"))
}
if remoteInfo.Exists("KernelVersion") {
fmt.Fprintf(cli.out, "Kernel Version: %s\n", remoteInfo.Get("KernelVersion"))
}
if remoteInfo.Exists("OperatingSystem") {
fmt.Fprintf(cli.out, "Operating System: %s\n", remoteInfo.Get("OperatingSystem"))
}
if remoteInfo.Exists("NCPU") {
fmt.Fprintf(cli.out, "CPUs: %d\n", remoteInfo.GetInt("NCPU"))
}
if remoteInfo.Exists("MemTotal") {
fmt.Fprintf(cli.out, "Total Memory: %s\n", units.BytesSize(float64(remoteInfo.GetInt64("MemTotal"))))
}
if remoteInfo.Exists("Name") {
fmt.Fprintf(cli.out, "Name: %s\n", remoteInfo.Get("Name"))
}
if remoteInfo.Exists("ID") {
fmt.Fprintf(cli.out, "ID: %s\n", remoteInfo.Get("ID"))
}
if remoteInfo.GetBool("Debug") || os.Getenv("DEBUG") != "" {
if remoteInfo.Exists("Debug") {
fmt.Fprintf(cli.out, "Debug mode (server): %v\n", remoteInfo.GetBool("Debug"))
}
fmt.Fprintf(cli.out, "Debug mode (client): %v\n", os.Getenv("DEBUG") != "")
if remoteInfo.Exists("NFd") {
fmt.Fprintf(cli.out, "File Descriptors: %d\n", remoteInfo.GetInt("NFd"))
}
if remoteInfo.Exists("NGoroutines") {
fmt.Fprintf(cli.out, "Goroutines: %d\n", remoteInfo.GetInt("NGoroutines"))
}
if remoteInfo.Exists("SystemTime") {
t, err := remoteInfo.GetTime("SystemTime")
if err != nil {
log.Errorf("Error reading system time: %v", err)
} else {
fmt.Fprintf(cli.out, "System Time: %s\n", t.Format(time.UnixDate))
}
}
if remoteInfo.Exists("NEventsListener") {
fmt.Fprintf(cli.out, "EventsListeners: %d\n", remoteInfo.GetInt("NEventsListener"))
}
if initSha1 := remoteInfo.Get("InitSha1"); initSha1 != "" {
fmt.Fprintf(cli.out, "Init SHA1: %s\n", initSha1)
}
if initPath := remoteInfo.Get("InitPath"); initPath != "" {
fmt.Fprintf(cli.out, "Init Path: %s\n", initPath)
}
if root := remoteInfo.Get("DockerRootDir"); root != "" {
fmt.Fprintf(cli.out, "Docker Root Dir: %s\n", root)
}
}
if remoteInfo.Exists("HttpProxy") {
fmt.Fprintf(cli.out, "Http Proxy: %s\n", remoteInfo.Get("HttpProxy"))
}
if remoteInfo.Exists("HttpsProxy") {
fmt.Fprintf(cli.out, "Https Proxy: %s\n", remoteInfo.Get("HttpsProxy"))
}
if remoteInfo.Exists("NoProxy") {
fmt.Fprintf(cli.out, "No Proxy: %s\n", remoteInfo.Get("NoProxy"))
}
if len(remoteInfo.GetList("IndexServerAddress")) != 0 {
cli.LoadConfigFile()
u := cli.configFile.Configs[remoteInfo.Get("IndexServerAddress")].Username
if len(u) > 0 {
fmt.Fprintf(cli.out, "Username: %v\n", u)
fmt.Fprintf(cli.out, "Registry: %v\n", remoteInfo.GetList("IndexServerAddress"))
}
}
if remoteInfo.Exists("MemoryLimit") && !remoteInfo.GetBool("MemoryLimit") {
fmt.Fprintf(cli.err, "WARNING: No memory limit support\n")
}
if remoteInfo.Exists("SwapLimit") && !remoteInfo.GetBool("SwapLimit") {
fmt.Fprintf(cli.err, "WARNING: No swap limit support\n")
}
if remoteInfo.Exists("IPv4Forwarding") && !remoteInfo.GetBool("IPv4Forwarding") {
fmt.Fprintf(cli.err, "WARNING: IPv4 forwarding is disabled.\n")
}
if remoteInfo.Exists("Labels") {
fmt.Fprintln(cli.out, "Labels:")
for _, attribute := range remoteInfo.GetList("Labels") {
fmt.Fprintf(cli.out, " %s\n", attribute)
}
}
return nil
}
func (cli *DockerCli) CmdStart(args ...string) error {
var (
cErr chan error
tty bool
cmd = cli.Subcmd("start", "CONTAINER [CONTAINER...]", "Start one or more stopped containers", true)
attach = cmd.Bool([]string{"a", "-attach"}, false, "Attach STDOUT/STDERR and forward signals")
openStdin = cmd.Bool([]string{"i", "-interactive"}, false, "Attach container's STDIN")
)
cmd.Require(flag.Min, 1)
utils.ParseFlags(cmd, args, true)
if *attach || *openStdin {
if cmd.NArg() > 1 {
return fmt.Errorf("You cannot start and attach multiple containers at once.")
}
stream, _, err := cli.call("GET", "/containers/"+cmd.Arg(0)+"/json", nil, false)
if err != nil {
return err
}
env := engine.Env{}
if err := env.Decode(stream); err != nil {
return err
}
config := env.GetSubEnv("Config")
tty = config.GetBool("Tty")
if !tty {
sigc := cli.forwardAllSignals(cmd.Arg(0))
defer signal.StopCatch(sigc)
}
var in io.ReadCloser
v := url.Values{}
v.Set("stream", "1")
if *openStdin && config.GetBool("OpenStdin") {
v.Set("stdin", "1")
in = cli.in
}
v.Set("stdout", "1")
v.Set("stderr", "1")
hijacked := make(chan io.Closer)
// Block the return until the chan gets closed
defer func() {
log.Debugf("CmdStart() returned, defer waiting for hijack to finish.")
if _, ok := <-hijacked; ok {
log.Errorf("Hijack did not finish (chan still open)")
}
cli.in.Close()
}()
cErr = promise.Go(func() error {
return cli.hijack("POST", "/containers/"+cmd.Arg(0)+"/attach?"+v.Encode(), tty, in, cli.out, cli.err, hijacked, nil)
})
// Acknowledge the hijack before starting
select {
case closer := <-hijacked:
// Make sure that the hijack gets closed when returning (results
// in closing the hijack chan and freeing server's goroutines)
if closer != nil {
defer closer.Close()
}
case err := <-cErr:
if err != nil {
return err
}
}
}
var encounteredError error
for _, name := range cmd.Args() {
_, _, err := readBody(cli.call("POST", "/containers/"+name+"/start", nil, false))
if err != nil {
if !*attach && !*openStdin {
// attach and openStdin is false means it could be starting multiple containers
// when a container start failed, show the error message and start next
fmt.Fprintf(cli.err, "%s\n", err)
encounteredError = fmt.Errorf("Error: failed to start one or more containers")
} else {
encounteredError = err
}
} else {
if !*attach && !*openStdin {
fmt.Fprintf(cli.out, "%s\n", name)
}
}
}
if encounteredError != nil {
return encounteredError
}
if *openStdin || *attach {
if tty && cli.isTerminalOut {
if err := cli.monitorTtySize(cmd.Arg(0), false); err != nil {
log.Errorf("Error monitoring TTY size: %s", err)
}
}
if attchErr := <-cErr; attchErr != nil {
return attchErr
}
_, status, err := getExitCode(cli, cmd.Arg(0))
if err != nil {
return err
}
if status != 0 {
return &utils.StatusError{StatusCode: status}
}
}
return nil
}
func (cli *DockerCli) CmdPull(args ...string) error {
cmd := cli.Subcmd("pull", "NAME[:TAG|@DIGEST]", "Pull an image or a repository from the registry", true)
allTags := cmd.Bool([]string{"a", "-all-tags"}, false, "Download all tagged images in the repository")
cmd.Require(flag.Exact, 1)
utils.ParseFlags(cmd, args, true)
var (
v = url.Values{}
remote = cmd.Arg(0)
newRemote = remote
)
taglessRemote, tag := parsers.ParseRepositoryTag(remote)
if tag == "" && !*allTags {
newRemote = utils.ImageReference(taglessRemote, graph.DEFAULTTAG)
}
if tag != "" && *allTags {
return fmt.Errorf("tag can't be used with --all-tags/-a")
}
v.Set("fromImage", newRemote)
// Resolve the Repository name from fqn to RepositoryInfo
repoInfo, err := registry.ParseRepositoryInfo(taglessRemote)
if err != nil {
return err
}
cli.LoadConfigFile()
// Resolve the Auth config relevant for this server
authConfig := cli.configFile.ResolveAuthConfig(repoInfo.Index)
pull := func(authConfig registry.AuthConfig) error {
buf, err := json.Marshal(authConfig)
if err != nil {
return err
}
registryAuthHeader := []string{
base64.URLEncoding.EncodeToString(buf),
}
return cli.stream("POST", "/images/create?"+v.Encode(), nil, cli.out, map[string][]string{
"X-Registry-Auth": registryAuthHeader,
})
}
if err := pull(authConfig); err != nil {
if strings.Contains(err.Error(), "Status 401") {
fmt.Fprintln(cli.out, "\nPlease login prior to pull:")
if err := cli.CmdLogin(repoInfo.Index.GetAuthConfigKey()); err != nil {
return err
}
authConfig := cli.configFile.ResolveAuthConfig(repoInfo.Index)
return pull(authConfig)
}
return err
}
return nil
}