// Creates an image from Pull or from Import
func postImagesCreate(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return err
}
var (
image = r.Form.Get("fromImage")
repo = r.Form.Get("repo")
tag = r.Form.Get("tag")
job *engine.Job
)
authEncoded := r.Header.Get("X-Registry-Auth")
authConfig := ®istry.AuthConfig{}
if authEncoded != "" {
authJson := base64.NewDecoder(base64.URLEncoding, strings.NewReader(authEncoded))
if err := json.NewDecoder(authJson).Decode(authConfig); err != nil {
// for a pull it is not an error if no auth was given
// to increase compatibility with the existing api it is defaulting to be empty
authConfig = ®istry.AuthConfig{}
}
}
if image != "" { //pull
if tag == "" {
image, tag = parsers.ParseRepositoryTag(image)
}
metaHeaders := map[string][]string{}
for k, v := range r.Header {
if strings.HasPrefix(k, "X-Meta-") {
metaHeaders[k] = v
}
}
job = eng.Job("pull", image, tag)
job.SetenvBool("parallel", version.GreaterThan("1.3"))
job.SetenvJson("metaHeaders", metaHeaders)
job.SetenvJson("authConfig", authConfig)
} else { //import
if tag == "" {
repo, tag = parsers.ParseRepositoryTag(repo)
}
job = eng.Job("import", r.Form.Get("fromSrc"), repo, tag)
job.Stdin.Add(r.Body)
job.SetenvList("changes", r.Form["changes"])
}
if version.GreaterThan("1.0") {
job.SetenvBool("json", true)
streamJSON(job, w, true)
} else {
job.Stdout.Add(utils.NewWriteFlusher(w))
}
if err := job.Run(); err != nil {
if !job.Stdout.Used() {
return err
}
sf := utils.NewStreamFormatter(version.GreaterThan("1.0"))
w.Write(sf.FormatError(err))
}
return nil
}
func makeHttpHandler(eng *engine.Engine, logging bool, localMethod string, localRoute string, handlerFunc HttpApiFunc, enableCors bool, dockerVersion version.Version) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
// log the request
utils.Debugf("Calling %s %s", localMethod, localRoute)
if logging {
log.Println(r.Method, r.RequestURI)
}
if strings.Contains(r.Header.Get("User-Agent"), "Docker-Client/") {
userAgent := strings.Split(r.Header.Get("User-Agent"), "/")
if len(userAgent) == 2 && !dockerVersion.Equal(version.Version(userAgent[1])) {
utils.Debugf("Warning: client and server don't have the same version (client: %s, server: %s)", userAgent[1], dockerVersion)
}
}
version := version.Version(mux.Vars(r)["version"])
if version == "" {
version = api.APIVERSION
}
if enableCors {
writeCorsHeaders(w, r)
}
if version.GreaterThan(api.APIVERSION) {
http.Error(w, fmt.Errorf("client and server don't have same version (client : %s, server: %s)", version, api.APIVERSION).Error(), http.StatusNotFound)
return
}
if err := handlerFunc(eng, version, w, r, mux.Vars(r)); err != nil {
utils.Errorf("Handler for %s %s returned error: %s", localMethod, localRoute, err)
httpError(w, err)
}
}
}
func postImagesPush(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if vars == nil {
return fmt.Errorf("Missing parameter")
}
metaHeaders := map[string][]string{}
for k, v := range r.Header {
if strings.HasPrefix(k, "X-Meta-") {
metaHeaders[k] = v
}
}
if err := parseForm(r); err != nil {
return err
}
authConfig := ®istry.AuthConfig{}
authEncoded := r.Header.Get("X-Registry-Auth")
if authEncoded != "" {
// the new format is to handle the authConfig as a header
authJson := base64.NewDecoder(base64.URLEncoding, strings.NewReader(authEncoded))
if err := json.NewDecoder(authJson).Decode(authConfig); err != nil {
// to increase compatibility to existing api it is defaulting to be empty
authConfig = ®istry.AuthConfig{}
}
} else {
// the old format is supported for compatibility if there was no authConfig header
if err := json.NewDecoder(r.Body).Decode(authConfig); err != nil {
return err
}
}
manifest, err := ioutil.ReadAll(r.Body)
if err != nil {
return err
}
job := eng.Job("push", vars["name"])
job.SetenvJson("metaHeaders", metaHeaders)
job.SetenvJson("authConfig", authConfig)
job.Setenv("manifest", string(manifest))
job.Setenv("tag", r.Form.Get("tag"))
if version.GreaterThan("1.0") {
job.SetenvBool("json", true)
streamJSON(job, w, true)
} else {
job.Stdout.Add(utils.NewWriteFlusher(w))
}
if err := job.Run(); err != nil {
if !job.Stdout.Used() {
return err
}
sf := utils.NewStreamFormatter(version.GreaterThan("1.0"))
w.Write(sf.FormatError(err))
}
return nil
}
// ContainerInspect returns low-level information about a
// container. Returns an error if the container cannot be found, or if
// there is an error getting the data.
func (daemon *Daemon) ContainerInspect(name string, size bool, version version.Version) (interface{}, error) {
switch {
case version.LessThan("1.20"):
return daemon.containerInspectPre120(name)
case version.Equal("1.20"):
return daemon.containerInspect120(name)
}
return daemon.containerInspectCurrent(name, size)
}
func getImagesJSON(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return err
}
var (
err error
outs *engine.Table
job = eng.Job("images")
)
job.Setenv("filters", r.Form.Get("filters"))
// FIXME this parameter could just be a match filter
job.Setenv("filter", r.Form.Get("filter"))
job.Setenv("all", r.Form.Get("all"))
if version.GreaterThanOrEqualTo("1.7") {
streamJSON(job, w, false)
} else if outs, err = job.Stdout.AddListTable(); err != nil {
return err
}
if err := job.Run(); err != nil {
return err
}
if version.LessThan("1.7") && outs != nil { // Convert to legacy format
outsLegacy := engine.NewTable("Created", 0)
for _, out := range outs.Data {
for _, repoTag := range out.GetList("RepoTags") {
repo, tag := parsers.ParseRepositoryTag(repoTag)
outLegacy := &engine.Env{}
outLegacy.Set("Repository", repo)
outLegacy.SetJson("Tag", tag)
outLegacy.Set("Id", out.Get("Id"))
outLegacy.SetInt64("Created", out.GetInt64("Created"))
outLegacy.SetInt64("Size", out.GetInt64("Size"))
outLegacy.SetInt64("VirtualSize", out.GetInt64("VirtualSize"))
outsLegacy.Add(outLegacy)
}
}
w.Header().Set("Content-Type", "application/json")
if _, err := outsLegacy.WriteListTo(w); err != nil {
return err
}
}
return nil
}
func (s *Server) postContainersCreate(version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return err
}
if err := checkForJSON(r); err != nil {
return err
}
var (
warnings []string
name = r.Form.Get("name")
)
config, hostConfig, err := runconfig.DecodeContainerConfig(r.Body)
if err != nil {
return err
}
adjustCPUShares := version.LessThan("1.19")
container, warnings, err := s.daemon.ContainerCreate(name, config, hostConfig, adjustCPUShares)
if err != nil {
return err
}
return writeJSON(w, http.StatusCreated, &types.ContainerCreateResponse{
ID: container.ID,
Warnings: warnings,
})
}
func deleteContainers(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return err
}
if vars == nil {
return fmt.Errorf("Missing parameter")
}
job := eng.Job("container_delete", vars["name"])
if version.GreaterThanOrEqualTo("1.14") {
job.Setenv("stop", r.Form.Get("stop"))
job.Setenv("kill", r.Form.Get("kill"))
if job.GetenvBool("stop") && job.GetenvBool("kill") {
return fmt.Errorf("Bad parameters: can't use stop and kill simultaneously")
}
} else {
job.Setenv("stop", r.Form.Get("force"))
}
job.Setenv("removeVolume", r.Form.Get("v"))
job.Setenv("removeLink", r.Form.Get("link"))
if err := job.Run(); err != nil {
return err
}
w.WriteHeader(http.StatusNoContent)
return nil
}
func postCommit(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return err
}
var (
config engine.Env
env engine.Env
job = eng.Job("commit", r.Form.Get("container"))
stdoutBuffer = bytes.NewBuffer(nil)
)
if err := config.Decode(r.Body); err != nil {
utils.Errorf("%s", err)
}
if r.FormValue("pause") == "" && version.GreaterThanOrEqualTo("1.13") {
job.Setenv("pause", "1")
} else {
job.Setenv("pause", r.FormValue("pause"))
}
job.Setenv("repo", r.Form.Get("repo"))
job.Setenv("tag", r.Form.Get("tag"))
job.Setenv("author", r.Form.Get("author"))
job.Setenv("comment", r.Form.Get("comment"))
job.SetenvSubEnv("config", &config)
job.Stdout.Add(stdoutBuffer)
if err := job.Run(); err != nil {
return err
}
env.Set("Id", engine.Tail(stdoutBuffer, 1))
return writeJSON(w, http.StatusCreated, env)
}
func (s *Server) getImagesGet(version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if vars == nil {
return fmt.Errorf("Missing parameter")
}
if err := parseForm(r); err != nil {
return err
}
useJSON := version.GreaterThan("1.0")
if useJSON {
w.Header().Set("Content-Type", "application/x-tar")
}
output := utils.NewWriteFlusher(w)
imageExportConfig := &graph.ImageExportConfig{Outstream: output}
if name, ok := vars["name"]; ok {
imageExportConfig.Names = []string{name}
} else {
imageExportConfig.Names = r.Form["names"]
}
if err := s.daemon.Repositories().ImageExport(imageExportConfig); err != nil {
if !output.Flushed() {
return err
}
sf := streamformatter.NewStreamFormatter(useJSON)
output.Write(sf.FormatError(err))
}
return nil
}
func makeHttpHandler(logging bool, localMethod string, localRoute string, handlerFunc HttpApiFunc, corsHeaders string, dockerVersion version.Version) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
// log the request
logrus.Debugf("Calling %s %s", localMethod, localRoute)
if logging {
logrus.Infof("%s %s", r.Method, r.RequestURI)
}
if strings.Contains(r.Header.Get("User-Agent"), "Docker-Client/") {
userAgent := strings.Split(r.Header.Get("User-Agent"), "/")
// v1.20 onwards includes the GOOS of the client after the version
// such as Docker/1.7.0 (linux)
if len(userAgent) == 2 && strings.Contains(userAgent[1], " ") {
userAgent[1] = strings.Split(userAgent[1], " ")[0]
}
if len(userAgent) == 2 && !dockerVersion.Equal(version.Version(userAgent[1])) {
logrus.Debugf("Warning: client and server don't have the same version (client: %s, server: %s)", userAgent[1], dockerVersion)
}
}
version := version.Version(mux.Vars(r)["version"])
if version == "" {
version = api.Version
}
if corsHeaders != "" {
writeCorsHeaders(w, r, corsHeaders)
}
if version.GreaterThan(api.Version) {
http.Error(w, fmt.Errorf("client is newer than server (client API version: %s, server API version: %s)", version, api.Version).Error(), http.StatusBadRequest)
return
}
if version.LessThan(api.MinVersion) {
http.Error(w, fmt.Errorf("client is too old, minimum supported API version is %s, please upgrade your client to a newer version", api.MinVersion).Error(), http.StatusBadRequest)
return
}
w.Header().Set("Server", "Docker/"+dockerversion.VERSION+" ("+runtime.GOOS+")")
if err := handlerFunc(version, w, r, mux.Vars(r)); err != nil {
logrus.Errorf("Handler for %s %s returned error: %s", localMethod, localRoute, err)
httpError(w, err)
}
}
}
// TODO(vishh): Refactor the code to avoid having to specify stream config as part of both create and start.
func postContainerExecStart(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return nil
}
var (
name = vars["name"]
job = eng.Job("execStart", name)
errOut io.Writer = os.Stderr
)
if err := job.DecodeEnv(r.Body); err != nil {
return err
}
if !job.GetenvBool("Detach") {
// Setting up the streaming http interface.
inStream, outStream, err := hijackServer(w)
if err != nil {
return err
}
defer func() {
if tcpc, ok := inStream.(*net.TCPConn); ok {
tcpc.CloseWrite()
} else {
inStream.Close()
}
}()
defer func() {
if tcpc, ok := outStream.(*net.TCPConn); ok {
tcpc.CloseWrite()
} else if closer, ok := outStream.(io.Closer); ok {
closer.Close()
}
}()
var errStream io.Writer
fmt.Fprintf(outStream, "HTTP/1.1 200 OK\r\nContent-Type: application/vnd.docker.raw-stream\r\n\r\n")
if !job.GetenvBool("Tty") && version.GreaterThanOrEqualTo("1.6") {
errStream = stdcopy.NewStdWriter(outStream, stdcopy.Stderr)
outStream = stdcopy.NewStdWriter(outStream, stdcopy.Stdout)
} else {
errStream = outStream
}
job.Stdin.Add(inStream)
job.Stdout.Add(outStream)
job.Stderr.Set(errStream)
errOut = outStream
}
// Now run the user process in container.
job.SetCloseIO(false)
if err := job.Run(); err != nil {
fmt.Fprintf(errOut, "Error starting exec command in container %s: %s\n", name, err)
return err
}
w.WriteHeader(http.StatusNoContent)
return nil
}
func getImagesViz(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if version.GreaterThan("1.6") {
w.WriteHeader(http.StatusNotFound)
return fmt.Errorf("This is now implemented in the client.")
}
eng.ServeHTTP(w, r)
return nil
}
func (s *Server) postImagesPush(version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if vars == nil {
return fmt.Errorf("Missing parameter")
}
metaHeaders := map[string][]string{}
for k, v := range r.Header {
if strings.HasPrefix(k, "X-Meta-") {
metaHeaders[k] = v
}
}
if err := parseForm(r); err != nil {
return err
}
authConfig := &cliconfig.AuthConfig{}
authEncoded := r.Header.Get("X-Registry-Auth")
if authEncoded != "" {
// the new format is to handle the authConfig as a header
authJson := base64.NewDecoder(base64.URLEncoding, strings.NewReader(authEncoded))
if err := json.NewDecoder(authJson).Decode(authConfig); err != nil {
// to increase compatibility to existing api it is defaulting to be empty
authConfig = &cliconfig.AuthConfig{}
}
} else {
// the old format is supported for compatibility if there was no authConfig header
if err := json.NewDecoder(r.Body).Decode(authConfig); err != nil {
return fmt.Errorf("Bad parameters and missing X-Registry-Auth: %v", err)
}
}
useJSON := version.GreaterThan("1.0")
name := vars["name"]
output := utils.NewWriteFlusher(w)
imagePushConfig := &graph.ImagePushConfig{
MetaHeaders: metaHeaders,
AuthConfig: authConfig,
Tag: r.Form.Get("tag"),
OutStream: output,
Json: useJSON,
}
if useJSON {
w.Header().Set("Content-Type", "application/json")
}
if err := s.daemon.Repositories().Push(name, imagePushConfig); err != nil {
if !output.Flushed() {
return err
}
sf := streamformatter.NewStreamFormatter(useJSON)
output.Write(sf.FormatError(err))
}
return nil
}
func postContainersAttach(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return err
}
if vars == nil {
return fmt.Errorf("Missing parameter")
}
d := getDaemon(eng)
cont, err := d.Get(vars["name"])
if err != nil {
return err
}
inStream, outStream, err := hijackServer(w)
if err != nil {
return err
}
defer closeStreams(inStream, outStream)
var errStream io.Writer
if _, ok := r.Header["Upgrade"]; ok {
fmt.Fprintf(outStream, "HTTP/1.1 101 UPGRADED\r\nContent-Type: application/vnd.docker.raw-stream\r\nConnection: Upgrade\r\nUpgrade: tcp\r\n\r\n")
} else {
fmt.Fprintf(outStream, "HTTP/1.1 200 OK\r\nContent-Type: application/vnd.docker.raw-stream\r\n\r\n")
}
if !cont.Config.Tty && version.GreaterThanOrEqualTo("1.6") {
errStream = stdcopy.NewStdWriter(outStream, stdcopy.Stderr)
outStream = stdcopy.NewStdWriter(outStream, stdcopy.Stdout)
} else {
errStream = outStream
}
logs := toBool(r.Form.Get("logs"))
stream := toBool(r.Form.Get("stream"))
var stdin io.ReadCloser
var stdout, stderr io.Writer
if toBool(r.Form.Get("stdin")) {
stdin = inStream
}
if toBool(r.Form.Get("stdout")) {
stdout = outStream
}
if toBool(r.Form.Get("stderr")) {
stderr = errStream
}
if err := cont.AttachWithLogs(stdin, stdout, stderr, logs, stream); err != nil {
fmt.Fprintf(outStream, "Error attaching: %s\n", err)
}
return nil
}
func postContainersAttach(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return err
}
if vars == nil {
return fmt.Errorf("Missing parameter")
}
var (
job = eng.Job("container_inspect", vars["name"])
c, err = job.Stdout.AddEnv()
)
if err != nil {
return err
}
if err = job.Run(); err != nil {
return err
}
inStream, outStream, err := hijackServer(w)
if err != nil {
return err
}
defer closeStreams(inStream, outStream)
var errStream io.Writer
if _, ok := r.Header["Upgrade"]; ok {
fmt.Fprintf(outStream, "HTTP/1.1 101 UPGRADED\r\nContent-Type: application/vnd.docker.raw-stream\r\nConnection: Upgrade\r\nUpgrade: tcp\r\n\r\n")
} else {
fmt.Fprintf(outStream, "HTTP/1.1 200 OK\r\nContent-Type: application/vnd.docker.raw-stream\r\n\r\n")
}
if c.GetSubEnv("Config") != nil && !c.GetSubEnv("Config").GetBool("Tty") && version.GreaterThanOrEqualTo("1.6") {
errStream = stdcopy.NewStdWriter(outStream, stdcopy.Stderr)
outStream = stdcopy.NewStdWriter(outStream, stdcopy.Stdout)
} else {
errStream = outStream
}
job = eng.Job("attach", vars["name"])
job.Setenv("logs", r.Form.Get("logs"))
job.Setenv("stream", r.Form.Get("stream"))
job.Setenv("stdin", r.Form.Get("stdin"))
job.Setenv("stdout", r.Form.Get("stdout"))
job.Setenv("stderr", r.Form.Get("stderr"))
job.Stdin.Add(inStream)
job.Stdout.Add(outStream)
job.Stderr.Set(errStream)
if err := job.Run(); err != nil {
fmt.Fprintf(outStream, "Error attaching: %s\n", err)
}
return nil
}
func getImagesByName(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if vars == nil {
return fmt.Errorf("Missing parameter")
}
var job = eng.Job("image_inspect", vars["name"])
if version.LessThan("1.12") {
job.SetenvBool("raw", true)
}
streamJSON(job, w, false)
return job.Run()
}
func getImagesGet(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if vars == nil {
return fmt.Errorf("Missing parameter")
}
if version.GreaterThan("1.0") {
w.Header().Set("Content-Type", "application/x-tar")
}
job := eng.Job("image_export", vars["name"])
job.Stdout.Add(w)
return job.Run()
}
// TODO(vishh): Refactor the code to avoid having to specify stream config as part of both create and start.
func (s *Server) postContainerExecStart(version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return nil
}
var (
execName = vars["name"]
stdin io.ReadCloser
stdout io.Writer
stderr io.Writer
)
execStartCheck := &types.ExecStartCheck{}
if err := json.NewDecoder(r.Body).Decode(execStartCheck); err != nil {
return err
}
if !execStartCheck.Detach {
// Setting up the streaming http interface.
inStream, outStream, err := hijackServer(w)
if err != nil {
return err
}
defer closeStreams(inStream, outStream)
var errStream io.Writer
if _, ok := r.Header["Upgrade"]; ok {
fmt.Fprintf(outStream, "HTTP/1.1 101 UPGRADED\r\nContent-Type: application/vnd.docker.raw-stream\r\nConnection: Upgrade\r\nUpgrade: tcp\r\n\r\n")
} else {
fmt.Fprintf(outStream, "HTTP/1.1 200 OK\r\nContent-Type: application/vnd.docker.raw-stream\r\n\r\n")
}
if !execStartCheck.Tty && version.GreaterThanOrEqualTo("1.6") {
errStream = stdcopy.NewStdWriter(outStream, stdcopy.Stderr)
outStream = stdcopy.NewStdWriter(outStream, stdcopy.Stdout)
} else {
errStream = outStream
}
stdin = inStream
stdout = outStream
stderr = errStream
}
// Now run the user process in container.
if err := s.daemon.ContainerExecStart(execName, stdin, stdout, stderr); err != nil {
logrus.Errorf("Error starting exec command in container %s: %s", execName, err)
return err
}
w.WriteHeader(http.StatusNoContent)
return nil
}
func getEvents(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return err
}
var job = eng.Job("events")
// lineDelimited JSON events was added #7047
job.SetenvBool("lineDelim", version.GreaterThanOrEqualTo("1.15"))
streamJSON(job, w, true)
job.Setenv("since", r.Form.Get("since"))
job.Setenv("until", r.Form.Get("until"))
return job.Run()
}
func getContainersJSON(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return err
}
var (
err error
outs *engine.Table
job = eng.Job("containers")
)
job.Setenv("all", r.Form.Get("all"))
job.Setenv("size", r.Form.Get("size"))
job.Setenv("since", r.Form.Get("since"))
job.Setenv("before", r.Form.Get("before"))
job.Setenv("limit", r.Form.Get("limit"))
job.Setenv("filters", r.Form.Get("filters"))
if version.GreaterThanOrEqualTo("1.5") {
streamJSON(job, w, false)
} else if outs, err = job.Stdout.AddTable(); err != nil {
return err
}
if err = job.Run(); err != nil {
return err
}
if version.LessThan("1.5") { // Convert to legacy format
for _, out := range outs.Data {
ports := engine.NewTable("", 0)
ports.ReadListFrom([]byte(out.Get("Ports")))
out.Set("Ports", api.DisplayablePorts(ports))
}
w.Header().Set("Content-Type", "application/json")
if _, err = outs.WriteListTo(w); err != nil {
return err
}
}
return nil
}
func adjustCpuShares(version version.Version, hostConfig *runconfig.HostConfig) {
if version.LessThan("1.19") {
if hostConfig != nil && hostConfig.CPUShares > 0 {
// Handle unsupported CpuShares
if hostConfig.CPUShares < linuxMinCpuShares {
logrus.Warnf("Changing requested CpuShares of %d to minimum allowed of %d", hostConfig.CPUShares, linuxMinCpuShares)
hostConfig.CPUShares = linuxMinCpuShares
} else if hostConfig.CPUShares > linuxMaxCpuShares {
logrus.Warnf("Changing requested CpuShares of %d to maximum allowed of %d", hostConfig.CPUShares, linuxMaxCpuShares)
hostConfig.CPUShares = linuxMaxCpuShares
}
}
}
}
func postImagesDiffAndApply(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return err
}
job := eng.Job("apply_diff", r.Form.Get("container"), r.Form.Get("fromImage"), r.Form.Get("currentImage"))
if version.GreaterThan("1.0") {
job.SetenvBool("json", true)
streamJSON(job, w, true)
} else {
job.Stdout.Add(utils.NewWriteFlusher(w))
}
if err := job.Run(); err != nil {
if job.Stdout.Used() {
sf := utils.NewStreamFormatter(version.GreaterThan("1.0"))
w.Write(sf.FormatError(err))
}
return err
}
return nil
}
// getContainersByName inspects containers configuration and serializes it as json.
func (s *Server) getContainersByName(version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if vars == nil {
return fmt.Errorf("Missing parameter")
}
var json interface{}
var err error
switch {
case version.LessThan("1.20"):
json, err = s.daemon.ContainerInspectPre120(vars["name"])
case version.Equal("1.20"):
json, err = s.daemon.ContainerInspect120(vars["name"])
default:
json, err = s.daemon.ContainerInspect(vars["name"])
}
if err != nil {
return err
}
return writeJSON(w, http.StatusOK, json)
}
func (s *Server) getContainersByName(version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if vars == nil {
return fmt.Errorf("Missing parameter")
}
if version.LessThan("1.20") && runtime.GOOS != "windows" {
return getContainersByNameDownlevel(w, s, vars["name"])
}
containerJSON, err := s.daemon.ContainerInspect(vars["name"])
if err != nil {
return err
}
return writeJSON(w, http.StatusOK, containerJSON)
}
func getContainersTop(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if version.LessThan("1.4") {
return fmt.Errorf("top was improved a lot since 1.3, Please upgrade your docker client.")
}
if vars == nil {
return fmt.Errorf("Missing parameter")
}
if err := parseForm(r); err != nil {
return err
}
job := eng.Job("top", vars["name"], r.Form.Get("ps_args"))
streamJSON(job, w, false)
return job.Run()
}
func getContainersLogs(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return err
}
if vars == nil {
return fmt.Errorf("Missing parameter")
}
var (
inspectJob = eng.Job("container_inspect", vars["name"])
logsJob = eng.Job("logs", vars["name"])
c, err = inspectJob.Stdout.AddEnv()
)
if err != nil {
return err
}
logsJob.Setenv("follow", r.Form.Get("follow"))
logsJob.Setenv("tail", r.Form.Get("tail"))
logsJob.Setenv("stdout", r.Form.Get("stdout"))
logsJob.Setenv("stderr", r.Form.Get("stderr"))
logsJob.Setenv("timestamps", r.Form.Get("timestamps"))
// Validate args here, because we can't return not StatusOK after job.Run() call
stdout, stderr := logsJob.GetenvBool("stdout"), logsJob.GetenvBool("stderr")
if !(stdout || stderr) {
return fmt.Errorf("Bad parameters: you must choose at least one stream")
}
if err = inspectJob.Run(); err != nil {
return err
}
var outStream, errStream io.Writer
outStream = utils.NewWriteFlusher(w)
if c.GetSubEnv("Config") != nil && !c.GetSubEnv("Config").GetBool("Tty") && version.GreaterThanOrEqualTo("1.6") {
errStream = utils.NewStdWriter(outStream, utils.Stderr)
outStream = utils.NewStdWriter(outStream, utils.Stdout)
} else {
errStream = outStream
}
logsJob.Stdout.Add(outStream)
logsJob.Stderr.Set(errStream)
if err := logsJob.Run(); err != nil {
fmt.Fprintf(outStream, "Error running logs job: %s\n", err)
}
return nil
}
func (s *Server) postContainersKill(version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if vars == nil {
return fmt.Errorf("Missing parameter")
}
if err := parseForm(r); err != nil {
return err
}
var sig uint64
name := vars["name"]
// If we have a signal, look at it. Otherwise, do nothing
if sigStr := r.Form.Get("signal"); sigStr != "" {
// Check if we passed the signal as a number:
// The largest legal signal is 31, so let's parse on 5 bits
sigN, err := strconv.ParseUint(sigStr, 10, 5)
if err != nil {
// The signal is not a number, treat it as a string (either like
// "KILL" or like "SIGKILL")
syscallSig, ok := signal.SignalMap[strings.TrimPrefix(sigStr, "SIG")]
if !ok {
return fmt.Errorf("Invalid signal: %s", sigStr)
}
sig = uint64(syscallSig)
} else {
sig = sigN
}
if sig == 0 {
return fmt.Errorf("Invalid signal: %s", sigStr)
}
}
if err := s.daemon.ContainerKill(name, sig); err != nil {
_, isStopped := err.(daemon.ErrContainerNotRunning)
// Return error that's not caused because the container is stopped.
// Return error if the container is not running and the api is >= 1.20
// to keep backwards compatibility.
if version.GreaterThanOrEqualTo("1.20") || !isStopped {
return fmt.Errorf("Cannot kill container %s: %v", name, err)
}
}
w.WriteHeader(http.StatusNoContent)
return nil
}
func (s *Server) postCommit(version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := parseForm(r); err != nil {
return err
}
if err := checkForJson(r); err != nil {
return err
}
cont := r.Form.Get("container")
pause := boolValue(r, "pause")
if r.FormValue("pause") == "" && version.GreaterThanOrEqualTo("1.13") {
pause = true
}
c, _, err := runconfig.DecodeContainerConfig(r.Body)
if err != nil && err != io.EOF { //Do not fail if body is empty.
return err
}
if c == nil {
c = &runconfig.Config{}
}
containerCommitConfig := &daemon.ContainerCommitConfig{
Pause: pause,
Repo: r.Form.Get("repo"),
Tag: r.Form.Get("tag"),
Author: r.Form.Get("author"),
Comment: r.Form.Get("comment"),
Changes: r.Form["changes"],
Config: c,
}
imgID, err := builder.Commit(s.daemon, cont, containerCommitConfig)
if err != nil {
return err
}
return writeJSON(w, http.StatusCreated, &types.ContainerCommitResponse{
ID: imgID,
})
}
func (s *Server) getContainersByName(version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if vars == nil {
return fmt.Errorf("Missing parameter")
}
if version.LessThan("1.19") {
containerJSONRaw, err := s.daemon.ContainerInspectRaw(vars["name"])
if err != nil {
return err
}
return writeJSON(w, http.StatusOK, containerJSONRaw)
}
containerJSON, err := s.daemon.ContainerInspect(vars["name"])
if err != nil {
return err
}
return writeJSON(w, http.StatusOK, containerJSON)
}
func getImagesGet(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if vars == nil {
return fmt.Errorf("Missing parameter")
}
if err := parseForm(r); err != nil {
return err
}
if version.GreaterThan("1.0") {
w.Header().Set("Content-Type", "application/x-tar")
}
var job *engine.Job
if name, ok := vars["name"]; ok {
job = eng.Job("image_export", name)
} else {
job = eng.Job("image_export", r.Form["names"]...)
}
job.Stdout.Add(w)
return job.Run()
}