func (daemon *Daemon) CmdInfo(job *engine.Job) engine.Status {
images, _ := daemon.Graph().Map()
var imgcount int
if images == nil {
imgcount = 0
} else {
imgcount = len(images)
}
kernelVersion := "<unknown>"
if kv, err := kernel.GetKernelVersion(); err == nil {
kernelVersion = kv.String()
}
operatingSystem := "<unknown>"
if s, err := operatingsystem.GetOperatingSystem(); err == nil {
operatingSystem = s
}
if inContainer, err := operatingsystem.IsContainerized(); err != nil {
utils.Errorf("Could not determine if daemon is containerized: %v", err)
operatingSystem += " (error determining if containerized)"
} else if inContainer {
operatingSystem += " (containerized)"
}
// if we still have the original dockerinit binary from before we copied it locally, let's return the path to that, since that's more intuitive (the copied path is trivial to derive by hand given VERSION)
initPath := utils.DockerInitPath("")
if initPath == "" {
// if that fails, we'll just return the path from the daemon
initPath = daemon.SystemInitPath()
}
cjob := job.Eng.Job("subscribers_count")
env, _ := cjob.Stdout.AddEnv()
if err := cjob.Run(); err != nil {
return job.Error(err)
}
v := &engine.Env{}
v.SetInt("Containers", len(daemon.List()))
v.SetInt("Images", imgcount)
v.Set("Driver", daemon.GraphDriver().String())
v.SetJson("DriverStatus", daemon.GraphDriver().Status())
v.SetBool("MemoryLimit", daemon.SystemConfig().MemoryLimit)
v.SetBool("SwapLimit", daemon.SystemConfig().SwapLimit)
v.SetBool("IPv4Forwarding", !daemon.SystemConfig().IPv4ForwardingDisabled)
v.SetBool("Debug", os.Getenv("DEBUG") != "")
v.SetInt("NFd", utils.GetTotalUsedFds())
v.SetInt("NGoroutines", runtime.NumGoroutine())
v.Set("ExecutionDriver", daemon.ExecutionDriver().Name())
v.SetInt("NEventsListener", env.GetInt("count"))
v.Set("KernelVersion", kernelVersion)
v.Set("OperatingSystem", operatingSystem)
v.Set("IndexServerAddress", registry.IndexServerAddress())
v.Set("InitSha1", dockerversion.INITSHA1)
v.Set("InitPath", initPath)
v.SetList("Sockets", daemon.Sockets)
if _, err := v.WriteTo(job.Stdout); err != nil {
return job.Error(err)
}
return engine.StatusOK
}
func (s *TagStore) CmdViz(job *engine.Job) engine.Status {
images, _ := s.graph.Map()
if images == nil {
return engine.StatusOK
}
job.Stdout.Write([]byte("digraph docker {\n"))
var (
parentImage *image.Image
err error
)
for _, image := range images {
parentImage, err = image.GetParent()
if err != nil {
return job.Errorf("Error while getting parent image: %v", err)
}
if parentImage != nil {
job.Stdout.Write([]byte(" \"" + parentImage.ID + "\" -> \"" + image.ID + "\"\n"))
} else {
job.Stdout.Write([]byte(" base -> \"" + image.ID + "\" [style=invis]\n"))
}
}
for id, repos := range s.GetRepoRefs() {
job.Stdout.Write([]byte(" \"" + id + "\" [label=\"" + id + "\\n" + strings.Join(repos, "\\n") + "\",shape=box,fillcolor=\"paleturquoise\",style=\"filled,rounded\"];\n"))
}
job.Stdout.Write([]byte(" base [style=invisible]\n}\n"))
return engine.StatusOK
}
// jobInitApi runs the remote api server `srv` as a daemon,
// Only one api server can run at the same time - this is enforced by a pidfile.
// The signals SIGINT, SIGQUIT and SIGTERM are intercepted for cleanup.
func InitServer(job *engine.Job) engine.Status {
job.Logf("Creating server")
cfg := daemonconfig.ConfigFromJob(job)
srv, err := NewServer(job.Eng, cfg)
if err != nil {
return job.Error(err)
}
job.Eng.Hack_SetGlobalVar("httpapi.server", srv)
job.Eng.Hack_SetGlobalVar("httpapi.daemon", srv.daemon)
for name, handler := range map[string]engine.Handler{
"build": srv.Build,
} {
if err := job.Eng.Register(name, srv.handlerWrap(handler)); err != nil {
return job.Error(err)
}
}
// Install image-related commands from the image subsystem.
// See `graph/service.go`
if err := srv.daemon.Repositories().Install(job.Eng); err != nil {
return job.Error(err)
}
// Install daemon-related commands from the daemon subsystem.
// See `daemon/`
if err := srv.daemon.Install(job.Eng); err != nil {
return job.Error(err)
}
return engine.StatusOK
}
// Auth contacts the public registry with the provided credentials,
// and returns OK if authentication was sucessful.
// It can be used to verify the validity of a client's credentials.
func (s *Service) Auth(job *engine.Job) engine.Status {
var (
err error
authConfig = &AuthConfig{}
)
job.GetenvJson("authConfig", authConfig)
// TODO: this is only done here because auth and registry need to be merged into one pkg
if addr := authConfig.ServerAddress; addr != "" && addr != IndexServerAddress() {
endpoint, err := NewEndpoint(addr)
if err != nil {
return job.Error(err)
}
if _, err := endpoint.Ping(); err != nil {
return job.Error(err)
}
authConfig.ServerAddress = endpoint.String()
}
status, err := Login(authConfig, HTTPRequestFactory(nil))
if err != nil {
return job.Error(err)
}
job.Printf("%s\n", status)
return engine.StatusOK
}
func (daemon *Daemon) ContainerInspect(job *engine.Job) engine.Status {
if len(job.Args) != 1 {
return job.Errorf("usage: %s NAME", job.Name)
}
name := job.Args[0]
if container := daemon.Get(name); container != nil {
container.Lock()
defer container.Unlock()
if job.GetenvBool("raw") {
b, err := json.Marshal(&struct {
*Container
HostConfig *runconfig.HostConfig
}{container, container.hostConfig})
if err != nil {
return job.Error(err)
}
job.Stdout.Write(b)
return engine.StatusOK
}
out := &engine.Env{}
out.SetJson("Id", container.ID)
out.SetAuto("Created", container.Created)
out.SetJson("Path", container.Path)
out.SetList("Args", container.Args)
out.SetJson("Config", container.Config)
out.SetJson("State", container.State)
out.Set("Image", container.ImageID)
out.SetJson("NetworkSettings", container.NetworkSettings)
out.Set("ResolvConfPath", container.ResolvConfPath)
out.Set("HostnamePath", container.HostnamePath)
out.Set("HostsPath", container.HostsPath)
out.SetJson("Name", container.Name)
out.SetInt("RestartCount", container.RestartCount)
out.Set("Driver", container.Driver)
out.Set("ExecDriver", container.ExecDriver)
out.Set("MountLabel", container.MountLabel)
out.Set("ProcessLabel", container.ProcessLabel)
out.SetJson("Volumes", container.Volumes)
out.SetJson("VolumesRW", container.VolumesRW)
out.SetJson("AppArmorProfile", container.AppArmorProfile)
out.SetList("ExecIDs", container.GetExecIDs())
if children, err := daemon.Children(container.Name); err == nil {
for linkAlias, child := range children {
container.hostConfig.Links = append(container.hostConfig.Links, fmt.Sprintf("%s:%s", child.Name, linkAlias))
}
}
out.SetJson("HostConfig", container.hostConfig)
container.hostConfig.Links = nil
if _, err := out.WriteTo(job.Stdout); err != nil {
return job.Error(err)
}
return engine.StatusOK
}
return job.Errorf("No such container: %s", name)
}
// release an interface for a select ip
func Release(job *engine.Job) engine.Status {
var (
id = job.Args[0]
containerInterface = currentInterfaces.Get(id)
)
if containerInterface == nil {
return job.Errorf("No network information to release for %s", id)
}
for _, nat := range containerInterface.PortMappings {
if err := portmapper.Unmap(nat); err != nil {
log.Infof("Unable to unmap port %s: %s", nat, err)
}
}
if err := ipallocator.ReleaseIP(bridgeIPv4Network, containerInterface.IP); err != nil {
log.Infof("Unable to release IPv4 %s", err)
}
if globalIPv6Network != nil {
if err := ipallocator.ReleaseIP(globalIPv6Network, containerInterface.IPv6); err != nil {
log.Infof("Unable to release IPv6 %s", err)
}
}
return engine.StatusOK
}
// FIXME: this is a shim to allow breaking up other parts of Server without
// dragging the sphagetti dependency along.
func (srv *Server) Log(job *engine.Job) engine.Status {
if len(job.Args) != 3 {
return job.Errorf("usage: %s ACTION ID FROM", job.Name)
}
srv.LogEvent(job.Args[0], job.Args[1], job.Args[2])
return engine.StatusOK
}
func (s *TagStore) CmdManifest(job *engine.Job) engine.Status {
if len(job.Args) != 1 {
return job.Errorf("usage: %s NAME", job.Name)
}
name := job.Args[0]
tag := job.Getenv("tag")
if tag == "" {
tag = "latest"
}
// Resolve the Repository name from fqn to endpoint + name
repoInfo, err := registry.ParseRepositoryInfo(name)
if err != nil {
return job.Error(err)
}
manifestBytes, err := s.newManifest(name, repoInfo.RemoteName, tag)
if err != nil {
return job.Error(err)
}
_, err = job.Stdout.Write(manifestBytes)
if err != nil {
return job.Error(err)
}
return engine.StatusOK
}
// CmdLookup return an image encoded in JSON
func (s *TagStore) CmdLookup(job *engine.Job) engine.Status {
if len(job.Args) != 1 {
return job.Errorf("usage: %s NAME", job.Name)
}
name := job.Args[0]
if image, err := s.LookupImage(name); err == nil && image != nil {
if job.GetenvBool("raw") {
b, err := image.RawJson()
if err != nil {
return job.Error(err)
}
job.Stdout.Write(b)
return engine.StatusOK
}
out := &engine.Env{}
out.Set("Id", image.ID)
out.Set("Parent", image.Parent)
out.Set("Comment", image.Comment)
out.SetAuto("Created", image.Created)
out.Set("Container", image.Container)
out.SetJson("ContainerConfig", image.ContainerConfig)
out.Set("DockerVersion", image.DockerVersion)
out.Set("Author", image.Author)
out.SetJson("Config", image.Config)
out.Set("Architecture", image.Architecture)
out.Set("Os", image.OS)
out.SetInt64("Size", image.Size)
if _, err = out.WriteTo(job.Stdout); err != nil {
return job.Error(err)
}
return engine.StatusOK
}
return job.Errorf("No such image: %s", name)
}
// Allocate a network interface
func Allocate(job *engine.Job) engine.Status {
var (
ip *net.IP
err error
id = job.Args[0]
requestedIP = net.ParseIP(job.Getenv("RequestedIP"))
)
if requestedIP != nil {
ip, err = ipallocator.RequestIP(bridgeNetwork, &requestedIP)
} else {
ip, err = ipallocator.RequestIP(bridgeNetwork, nil)
}
if err != nil {
return job.Error(err)
}
out := engine.Env{}
out.Set("IP", ip.String())
out.Set("Mask", bridgeNetwork.Mask.String())
out.Set("Gateway", bridgeNetwork.IP.String())
out.Set("Bridge", bridgeIface)
size, _ := bridgeNetwork.Mask.Size()
out.SetInt("IPPrefixLen", size)
currentInterfaces.Set(id, &networkInterface{
IP: *ip,
})
out.WriteTo(job.Stdout)
return engine.StatusOK
}
func (srv *Server) ContainerChanges(job *engine.Job) engine.Status {
if n := len(job.Args); n != 1 {
return job.Errorf("Usage: %s CONTAINER", job.Name)
}
name := job.Args[0]
if container := srv.daemon.Get(name); container != nil {
outs := engine.NewTable("", 0)
changes, err := container.Changes()
if err != nil {
return job.Error(err)
}
for _, change := range changes {
out := &engine.Env{}
if err := out.Import(change); err != nil {
return job.Error(err)
}
outs.Add(out)
}
if _, err := outs.WriteListTo(job.Stdout); err != nil {
return job.Error(err)
}
} else {
return job.Errorf("No such container: %s", name)
}
return engine.StatusOK
}
// NewServer sets up the required Server and does protocol specific checking.
func NewServer(proto, addr string, job *engine.Job) (Server, error) {
var (
err error
l net.Listener
r = createRouter(
job.Eng,
job.GetenvBool("Logging"),
job.GetenvBool("EnableCors"),
job.Getenv("CorsHeaders"),
job.Getenv("Version"),
)
)
switch proto {
case "tcp":
if !job.GetenvBool("TlsVerify") {
logrus.Warn("/!\\ DON'T BIND ON ANY IP ADDRESS WITHOUT setting -tlsverify IF YOU DON'T KNOW WHAT YOU'RE DOING /!\\")
}
if l, err = NewTcpSocket(addr, tlsConfigFromJob(job)); err != nil {
return nil, err
}
if err := allocateDaemonPort(addr); err != nil {
return nil, err
}
default:
return nil, errors.New("Invalid protocol format. Windows only supports tcp.")
}
}
func (e *Events) Log(job *engine.Job) engine.Status {
if len(job.Args) != 3 {
return job.Errorf("usage: %s ACTION ID FROM", job.Name)
}
// not waiting for receivers
go e.log(job.Args[0], job.Args[1], job.Args[2])
return engine.StatusOK
}
func (daemon *Daemon) ContainerCreate(job *engine.Job) error {
var name string
if len(job.Args) == 1 {
name = job.Args[0]
} else if len(job.Args) > 1 {
return fmt.Errorf("Usage: %s", job.Name)
}
config := runconfig.ContainerConfigFromJob(job)
hostConfig := runconfig.ContainerHostConfigFromJob(job)
if len(hostConfig.LxcConf) > 0 && !strings.Contains(daemon.ExecutionDriver().Name(), "lxc") {
return fmt.Errorf("Cannot use --lxc-conf with execdriver: %s", daemon.ExecutionDriver().Name())
}
if hostConfig.Memory != 0 && hostConfig.Memory < 4194304 {
return fmt.Errorf("Minimum memory limit allowed is 4MB")
}
if hostConfig.Memory > 0 && !daemon.SystemConfig().MemoryLimit {
job.Errorf("Your kernel does not support memory limit capabilities. Limitation discarded.\n")
hostConfig.Memory = 0
}
if hostConfig.Memory > 0 && hostConfig.MemorySwap != -1 && !daemon.SystemConfig().SwapLimit {
job.Errorf("Your kernel does not support swap limit capabilities. Limitation discarded.\n")
hostConfig.MemorySwap = -1
}
if hostConfig.Memory > 0 && hostConfig.MemorySwap > 0 && hostConfig.MemorySwap < hostConfig.Memory {
return fmt.Errorf("Minimum memoryswap limit should be larger than memory limit, see usage.\n")
}
if hostConfig.Memory == 0 && hostConfig.MemorySwap > 0 {
return fmt.Errorf("You should always set the Memory limit when using Memoryswap limit, see usage.\n")
}
container, buildWarnings, err := daemon.Create(config, hostConfig, name)
if err != nil {
if daemon.Graph().IsNotExist(err, config.Image) {
_, tag := parsers.ParseRepositoryTag(config.Image)
if tag == "" {
tag = graph.DEFAULTTAG
}
return fmt.Errorf("No such image: %s (tag: %s)", config.Image, tag)
}
return err
}
if !container.Config.NetworkDisabled && daemon.SystemConfig().IPv4ForwardingDisabled {
job.Errorf("IPv4 forwarding is disabled.\n")
}
container.LogEvent("create")
job.Printf("%s\n", container.ID)
for _, warning := range buildWarnings {
job.Errorf("%s\n", warning)
}
return nil
}
func (s *TagStore) CmdTag(job *engine.Job) error {
if len(job.Args) != 2 && len(job.Args) != 3 {
return fmt.Errorf("Usage: %s IMAGE REPOSITORY [TAG]\n", job.Name)
}
var tag string
if len(job.Args) == 3 {
tag = job.Args[2]
}
return s.Set(job.Args[1], tag, job.Args[0], job.GetenvBool("force"))
}
// GetRegistryConfig returns current registry configuration.
func (s *Service) GetRegistryConfig(job *engine.Job) engine.Status {
out := engine.Env{}
err := out.SetJson("config", s.Config)
if err != nil {
return job.Error(err)
}
out.WriteTo(job.Stdout)
return engine.StatusOK
}
func tlsConfigFromJob(job *engine.Job) *tlsConfig {
verify := job.GetenvBool("TlsVerify")
if !job.GetenvBool("Tls") && !verify {
return nil
}
return &tlsConfig{
Verify: verify,
Certificate: job.Getenv("TlsCert"),
Key: job.Getenv("TlsKey"),
CA: job.Getenv("TlsCa"),
}
}
func streamJSON(job *engine.Job, w http.ResponseWriter, flush bool) {
w.Header().Set("Content-Type", "application/json")
if job.GetenvBool("lineDelim") {
w.Header().Set("Content-Type", "application/x-json-stream")
}
if flush {
job.Stdout.Add(utils.NewWriteFlusher(w))
} else {
job.Stdout.Add(w)
}
}
func (daemon *Daemon) ContainerWait(job *engine.Job) error {
if len(job.Args) != 1 {
return fmt.Errorf("Usage: %s", job.Name)
}
name := job.Args[0]
container, err := daemon.Get(name)
if err != nil {
return fmt.Errorf("%s: %v", job.Name, err)
}
status, _ := container.WaitStop(-1 * time.Second)
job.Printf("%d\n", status)
return nil
}
func getPrivateKeys(job *engine.Job) ssh.Signer {
privateBytes, err := ioutil.ReadFile(os.Getenv("HOME") + "/.ssh/id_rsa")
if err != nil {
job.Errorf("Failed to load private key")
}
private, err := ssh.ParsePrivateKey(privateBytes)
if err != nil {
job.Errorf("Failed to parse private key")
}
return private
}
func (d *Daemon) ContainerExecCreate(job *engine.Job) error {
if len(job.Args) != 1 {
return fmt.Errorf("Usage: %s [options] container command [args]", job.Name)
}
if strings.HasPrefix(d.execDriver.Name(), lxc.DriverName) {
return lxc.ErrExec
}
var name = job.Args[0]
container, err := d.getActiveContainer(name)
if err != nil {
return err
}
config, err := runconfig.ExecConfigFromJob(job)
if err != nil {
return err
}
cmd := runconfig.NewCommand(config.Cmd...)
entrypoint, args := d.getEntrypointAndArgs(runconfig.NewEntrypoint(), cmd)
processConfig := execdriver.ProcessConfig{
Tty: config.Tty,
Entrypoint: entrypoint,
Arguments: args,
User: config.User,
Privileged: config.Privileged,
}
execConfig := &execConfig{
ID: stringid.GenerateRandomID(),
OpenStdin: config.AttachStdin,
OpenStdout: config.AttachStdout,
OpenStderr: config.AttachStderr,
StreamConfig: StreamConfig{},
ProcessConfig: processConfig,
Container: container,
Running: false,
}
container.LogEvent("exec_create: " + execConfig.ProcessConfig.Entrypoint + " " + strings.Join(execConfig.ProcessConfig.Arguments, " "))
d.registerExecCommand(execConfig)
job.Printf("%s\n", execConfig.ID)
return nil
}
func (daemon *Daemon) ContainerExport(job *engine.Job) engine.Status {
if len(job.Args) != 1 {
return job.Errorf("Usage: %s container_id", job.Name)
}
name := job.Args[0]
container, err := daemon.Get(name)
if err != nil {
return job.Error(err)
}
data, err := container.Export()
if err != nil {
return job.Errorf("%s: %s", name, err)
}
defer data.Close()
// Stream the entire contents of the container (basically a volatile snapshot)
if _, err := io.Copy(job.Stdout, data); err != nil {
return job.Errorf("%s: %s", name, err)
}
// FIXME: factor job-specific LogEvent to engine.Job.Run()
container.LogEvent("export")
return engine.StatusOK
}
func (daemon *Daemon) ContainerCopy(job *engine.Job) engine.Status {
if len(job.Args) != 2 {
return job.Errorf("Usage: %s CONTAINER RESOURCE\n", job.Name)
}
var (
name = job.Args[0]
resource = job.Args[1]
)
container, err := daemon.Get(name)
if err != nil {
return job.Error(err)
}
data, err := container.Copy(resource)
if err != nil {
return job.Error(err)
}
defer data.Close()
if _, err := io.Copy(job.Stdout, data); err != nil {
return job.Error(err)
}
return engine.StatusOK
}
func Commission(job *engine.Job) engine.Status {
var name string
if len(job.Args) == 1 {
name = job.Args[0]
} else if len(job.Args) > 1 {
return job.Errorf("Usage: %s", job.Name)
}
fqdn := job.Getenv("Fqdn")
configuration := job.Eng.Hack_GetGlobalVar("configuration").(types.KraneConfiguration)
parameters := url.Values{}
parameters.Set("name", name)
parameters.Set("fqdn", fqdn)
parameters.Set("plan", job.Getenv("Plan"))
parameters.Set("ssh_profile", configuration.Production.SshProfile)
id, err := configuration.Driver.Create(parameters)
if err != nil {
job.Errorf("unable to commission ship %s", fqdn)
}
job.Stdout.Write([]byte(id))
ship := configuration.Driver.FindShip(name)
newjob := job.Eng.Job("ssh_tunnel", ship.Fqdn, "true")
go newjob.Run()
return engine.StatusOK
}
func setupUnixHttp(addr string, job *engine.Job) (*HttpServer, error) {
r, err := createRouter(job.Eng, job.GetenvBool("Logging"), job.GetenvBool("EnableCors"), job.Getenv("Version"))
if err != nil {
return nil, err
}
if err := syscall.Unlink(addr); err != nil && !os.IsNotExist(err) {
return nil, err
}
mask := syscall.Umask(0777)
defer syscall.Umask(mask)
l, err := newListener("unix", addr, job.GetenvBool("BufferRequests"))
if err != nil {
return nil, err
}
if err := setSocketGroup(addr, job.Getenv("SocketGroup")); err != nil {
return nil, err
}
if err := os.Chmod(addr, 0660); err != nil {
return nil, err
}
return &HttpServer{&http.Server{Addr: addr, Handler: r}, l}, nil
}
func (daemon *Daemon) ContainerRename(job *engine.Job) engine.Status {
if len(job.Args) != 2 {
return job.Errorf("usage: %s OLD_NAME NEW_NAME", job.Name)
}
oldName := job.Args[0]
newName := job.Args[1]
container := daemon.Get(oldName)
if container == nil {
return job.Errorf("No such container: %s", oldName)
}
oldName = container.Name
container.Lock()
defer container.Unlock()
if _, err := daemon.reserveName(container.ID, newName); err != nil {
return job.Errorf("Error when allocating new name: %s", err)
}
container.Name = newName
if err := daemon.containerGraph.Delete(oldName); err != nil {
return job.Errorf("Failed to delete container %q: %v", oldName, err)
}
return engine.StatusOK
}
func (srv *Server) ContainerCopy(job *engine.Job) engine.Status {
if len(job.Args) != 2 {
return job.Errorf("Usage: %s CONTAINER RESOURCE\n", job.Name)
}
var (
name = job.Args[0]
resource = job.Args[1]
)
if container := srv.daemon.Get(name); container != nil {
data, err := container.Copy(resource)
if err != nil {
return job.Error(err)
}
defer data.Close()
if _, err := io.Copy(job.Stdout, data); err != nil {
return job.Error(err)
}
return engine.StatusOK
}
return job.Errorf("No such container: %s", name)
}
func writeEvent(job *engine.Job, event *utils.JSONMessage) error {
// When sending an event JSON serialization errors are ignored, but all
// other errors lead to the eviction of the listener.
if b, err := json.Marshal(event); err == nil {
if job.GetenvBool("lineDelim") {
b = append(b, []byte("\r\n")...)
}
if _, err = job.Stdout.Write(b); err != nil {
return err
}
}
return nil
}
func (srv *Server) Events(job *engine.Job) engine.Status {
if len(job.Args) != 0 {
return job.Errorf("Usage: %s", job.Name)
}
var (
since = job.GetenvInt64("since")
until = job.GetenvInt64("until")
timeout = time.NewTimer(time.Unix(until, 0).Sub(time.Now()))
)
// If no until, disable timeout
if until == 0 {
timeout.Stop()
}
listener := make(chan utils.JSONMessage)
srv.eventPublisher.Subscribe(listener)
defer srv.eventPublisher.Unsubscribe(listener)
// When sending an event JSON serialization errors are ignored, but all
// other errors lead to the eviction of the listener.
sendEvent := func(event *utils.JSONMessage) error {
if b, err := json.Marshal(event); err == nil {
if _, err = job.Stdout.Write(b); err != nil {
return err
}
}
return nil
}
job.Stdout.Write(nil)
// Resend every event in the [since, until] time interval.
if since != 0 {
for _, event := range srv.GetEvents() {
if event.Time >= since && (event.Time <= until || until == 0) {
if err := sendEvent(&event); err != nil {
return job.Error(err)
}
}
}
}
for {
select {
case event, ok := <-listener:
if !ok {
return engine.StatusOK
}
if err := sendEvent(&event); err != nil {
return job.Error(err)
}
case <-timeout.C:
return engine.StatusOK
}
}
}
// builtins jobs independent of any subsystem
func dockerVersion(job *engine.Job) engine.Status {
v := &engine.Env{}
v.SetJson("Version", dockerversion.VERSION)
v.SetJson("ApiVersion", api.APIVERSION)
v.Set("GitCommit", dockerversion.GITCOMMIT)
v.Set("GoVersion", runtime.Version())
v.Set("Os", runtime.GOOS)
v.Set("Arch", runtime.GOARCH)
if kernelVersion, err := kernel.GetKernelVersion(); err == nil {
v.Set("KernelVersion", kernelVersion.String())
}
if _, err := v.WriteTo(job.Stdout); err != nil {
return job.Error(err)
}
return engine.StatusOK
}
