diff --git a/Makefile b/Makefile index f35362d2ca..bae7d64909 100644 --- a/Makefile +++ b/Makefile @@ -38,7 +38,7 @@ $(DOCKER_BIN): $(DOCKER_DIR) $(DOCKER_DIR): @mkdir -p $(dir $@) - @if [ -h $@ ]; then rm -f $@; ln -sf $(CURDIR)/ $@; fi + @if [ -h $@ ]; then rm -f $@; fi; ln -sf $(CURDIR)/ $@ @(cd $(DOCKER_MAIN); go get $(GO_OPTIONS)) whichrelease: diff --git a/api.go b/api.go index df442ab39a..decd273e27 100644 --- a/api.go +++ b/api.go @@ -5,24 +5,46 @@ import ( "encoding/json" "fmt" "github.com/gorilla/mux" - "io" "log" "net" "net/http" - "net/url" "os" - "runtime" "strconv" "strings" ) -func ListenAndServe(addr string, rtime *Runtime) error { +func hijackServer(w http.ResponseWriter) (*os.File, net.Conn, error) { + rwc, _, err := w.(http.Hijacker).Hijack() + if err != nil { + return nil, nil, err + } + + file, err := rwc.(*net.TCPConn).File() + if err != nil { + return nil, rwc, err + } + + // Flush the options to make sure the client sets the raw mode + rwc.Write([]byte{}) + + return file, rwc, nil +} + +func httpError(w http.ResponseWriter, err error) { + if strings.HasPrefix(err.Error(), "No such") { + http.Error(w, err.Error(), http.StatusNotFound) + } else { + http.Error(w, err.Error(), http.StatusInternalServerError) + } +} + +func ListenAndServe(addr string, srv *Server) error { r := mux.NewRouter() log.Printf("Listening for HTTP on %s\n", addr) r.Path("/version").Methods("GET").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { log.Println(r.Method, r.RequestURI) - m := ApiVersion{VERSION, GIT_COMMIT, rtime.capabilities.MemoryLimit, rtime.capabilities.SwapLimit} + m := srv.DockerVersion() b, err := json.Marshal(m) if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) @@ -35,16 +57,11 @@ func ListenAndServe(addr string, rtime *Runtime) error { log.Println(r.Method, r.RequestURI) vars := mux.Vars(r) name := vars["name"] - if container := rtime.Get(name); container != nil { - if err := container.Kill(); err != nil { - http.Error(w, "Error restarting container "+name+": "+err.Error(), http.StatusInternalServerError) - return - } + if err := srv.ContainerKill(name); err != nil { + httpError(w, err) } else { - http.Error(w, "No such container: "+name, http.StatusNotFound) - return + w.WriteHeader(http.StatusOK) } - w.WriteHeader(http.StatusOK) }) r.Path("/containers/{name:.*}/export").Methods("GET").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { @@ -52,36 +69,21 @@ func ListenAndServe(addr string, rtime *Runtime) error { vars := mux.Vars(r) name := vars["name"] - if container := rtime.Get(name); container != nil { - - data, err := container.Export() - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - conn, _, err := w.(http.Hijacker).Hijack() - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - defer conn.Close() - file, err := conn.(*net.TCPConn).File() - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } + file, rwc, err := hijackServer(w) + if file != nil { defer file.Close() - - fmt.Fprintln(file, "HTTP/1.1 200 OK\r\nContent-Type: raw-stream-hijack\r\n\r\n") - // Stream the entire contents of the container (basically a volatile snapshot) - if _, err := io.Copy(file, data); err != nil { - fmt.Fprintln(file, "Error: "+err.Error()) - return - } - } else { - http.Error(w, "No such container: "+name, http.StatusNotFound) } - + if rwc != nil { + defer rwc.Close() + } + if err != nil { + httpError(w, err) + return + } + fmt.Fprintf(file, "HTTP/1.1 200 OK\r\nContent-Type: raw-stream-hijack\r\n\r\n") + if err := srv.ContainerExport(name, file); err != nil { + fmt.Fprintln(file, "Error: "+err.Error()) + } }) r.Path("/images").Methods("GET").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { @@ -89,61 +91,14 @@ func ListenAndServe(addr string, rtime *Runtime) error { if err := r.ParseForm(); err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) } - All := r.Form.Get("all") - NameFilter := r.Form.Get("filter") - Quiet := r.Form.Get("quiet") + all := r.Form.Get("all") + filter := r.Form.Get("filter") + quiet := r.Form.Get("quiet") - var allImages map[string]*Image - var err error - if All == "1" { - allImages, err = rtime.graph.Map() - } else { - allImages, err = rtime.graph.Heads() - } + outs, err := srv.Images(all, filter, quiet) if err != nil { - w.WriteHeader(500) - return + httpError(w, err) } - var outs []ApiImages = []ApiImages{} //produce [] when empty instead of 'null' - for name, repository := range rtime.repositories.Repositories { - if NameFilter != "" && name != NameFilter { - continue - } - for tag, id := range repository { - var out ApiImages - image, err := rtime.graph.Get(id) - if err != nil { - log.Printf("Warning: couldn't load %s from %s/%s: %s", id, name, tag, err) - continue - } - delete(allImages, id) - if Quiet != "1" { - out.Repository = name - out.Tag = tag - out.Id = TruncateId(id) - out.Created = image.Created.Unix() - } else { - out.Id = image.ShortId() - } - outs = append(outs, out) - } - } - // Display images which aren't part of a - if NameFilter == "" { - for id, image := range allImages { - var out ApiImages - if Quiet != "1" { - out.Repository = "" - out.Tag = "" - out.Id = TruncateId(id) - out.Created = image.Created.Unix() - } else { - out.Id = image.ShortId() - } - outs = append(outs, out) - } - } - b, err := json.Marshal(outs) if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) @@ -154,22 +109,7 @@ func ListenAndServe(addr string, rtime *Runtime) error { r.Path("/info").Methods("GET").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { log.Println(r.Method, r.RequestURI) - images, _ := rtime.graph.All() - var imgcount int - if images == nil { - imgcount = 0 - } else { - imgcount = len(images) - } - var out ApiInfo - out.Containers = len(rtime.List()) - out.Version = VERSION - out.Images = imgcount - if os.Getenv("DEBUG") == "1" { - out.Debug = true - out.NFd = getTotalUsedFds() - out.NGoroutines = runtime.NumGoroutine() - } + out := srv.DockerInfo() b, err := json.Marshal(out) if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) @@ -182,22 +122,10 @@ func ListenAndServe(addr string, rtime *Runtime) error { log.Println(r.Method, r.RequestURI) vars := mux.Vars(r) name := vars["name"] - - image, err := rtime.repositories.LookupImage(name) + outs, err := srv.ImageHistory(name) if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return + httpError(w, err) } - - var outs []ApiHistory = []ApiHistory{} //produce [] when empty instead of 'null' - err = image.WalkHistory(func(img *Image) error { - var out ApiHistory - out.Id = rtime.repositories.ImageName(img.ShortId()) - out.Created = img.Created.Unix() - out.CreatedBy = strings.Join(img.ContainerConfig.Cmd, " ") - return nil - }) - b, err := json.Marshal(outs) if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) @@ -210,25 +138,15 @@ func ListenAndServe(addr string, rtime *Runtime) error { log.Println(r.Method, r.RequestURI) vars := mux.Vars(r) name := vars["name"] - - if container := rtime.Get(name); container != nil { - changes, err := container.Changes() - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - var changesStr []string - for _, name := range changes { - changesStr = append(changesStr, name.String()) - } - b, err := json.Marshal(changesStr) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - } else { - w.Write(b) - } + changesStr, err := srv.ContainerChanges(name) + if err != nil { + httpError(w, err) + } + b, err := json.Marshal(changesStr) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) } else { - http.Error(w, "No such container: "+name, http.StatusNotFound) + w.Write(b) } }) @@ -237,26 +155,19 @@ func ListenAndServe(addr string, rtime *Runtime) error { if err := r.ParseForm(); err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) } - privatePort := r.Form.Get("port") vars := mux.Vars(r) name := vars["name"] - - if container := rtime.Get(name); container == nil { - http.Error(w, "No such container: "+name, http.StatusNotFound) - return - } else { - if frontend, exists := container.NetworkSettings.PortMapping[privatePort]; !exists { - http.Error(w, "No private port '"+privatePort+"' allocated on "+name, http.StatusInternalServerError) - return - } else { - b, err := json.Marshal(ApiPort{frontend}) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - } else { - w.Write(b) - } - } + out, err := srv.ContainerPort(name, r.Form.Get("port")) + if err != nil { + httpError(w, err) } + b, err := json.Marshal(ApiPort{out}) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + } else { + w.Write(b) + } + }) r.Path("/containers").Methods("GET").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { @@ -264,38 +175,15 @@ func ListenAndServe(addr string, rtime *Runtime) error { if err := r.ParseForm(); err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) } - All := r.Form.Get("all") - NoTrunc := r.Form.Get("notrunc") - Quiet := r.Form.Get("quiet") - Last := r.Form.Get("n") - n, err := strconv.Atoi(Last) + all := r.Form.Get("all") + notrunc := r.Form.Get("notrunc") + quiet := r.Form.Get("quiet") + n, err := strconv.Atoi(r.Form.Get("n")) if err != nil { n = -1 } - var outs []ApiContainers = []ApiContainers{} //produce [] when empty instead of 'null' - for i, container := range rtime.List() { - if !container.State.Running && All != "1" && n == -1 { - continue - } - if i == n { - break - } - var out ApiContainers - out.Id = container.ShortId() - if Quiet != "1" { - command := fmt.Sprintf("%s %s", container.Path, strings.Join(container.Args, " ")) - if NoTrunc != "1" { - command = Trunc(command, 20) - } - out.Image = rtime.repositories.ImageName(container.Image) - out.Command = command - out.Created = container.Created.Unix() - out.Status = container.State.String() - out.Ports = container.NetworkSettings.PortMappingHuman() - } - outs = append(outs, out) - } + outs := srv.Containers(all, notrunc, quiet, n) b, err := json.Marshal(outs) if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) @@ -304,159 +192,84 @@ func ListenAndServe(addr string, rtime *Runtime) error { } }) - r.Path("/containers/{name:.*}/commit").Methods("POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - log.Println(r.Method, r.RequestURI) - var config Config - if err := json.NewDecoder(r.Body).Decode(&config); err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - - if err := r.ParseForm(); err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - vars := mux.Vars(r) - name := vars["name"] - repo := r.Form.Get("repo") - tag := r.Form.Get("tag") - author := r.Form.Get("author") - comment := r.Form.Get("comment") - - img, err := rtime.Commit(name, repo, tag, comment, author, &config) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - - b, err := json.Marshal(ApiId{img.ShortId()}) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - } else { - w.Write(b) - } - }) - r.Path("/images/{name:.*}/tag").Methods("POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { log.Println(r.Method, r.RequestURI) if err := r.ParseForm(); err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) } - vars := mux.Vars(r) - name := vars["name"] repo := r.Form.Get("repo") tag := r.Form.Get("tag") + vars := mux.Vars(r) + name := vars["name"] var force bool if r.Form.Get("force") == "1" { force = true } - if err := rtime.repositories.Set(repo, tag, name, force); err != nil { + if err := srv.ContainerTag(name, repo, tag, force); err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) return } w.WriteHeader(http.StatusCreated) }) - r.Path("/images/{name:.*}/pull").Methods("POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - log.Println(r.Method, r.RequestURI) - vars := mux.Vars(r) - name := vars["name"] - - conn, _, err := w.(http.Hijacker).Hijack() - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - defer conn.Close() - file, err := conn.(*net.TCPConn).File() - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - defer file.Close() - - fmt.Fprintln(file, "HTTP/1.1 200 OK\r\nContent-Type: raw-stream-hijack\r\n\r\n") - if rtime.graph.LookupRemoteImage(name, rtime.authConfig) { - if err := rtime.graph.PullImage(file, name, rtime.authConfig); err != nil { - fmt.Fprintln(file, "Error: "+err.Error()) - } - return - } - if err := rtime.graph.PullRepository(file, name, "", rtime.repositories, rtime.authConfig); err != nil { - fmt.Fprintln(file, "Error: "+err.Error()) - } - }) - - /* /!\ W.I.P /!\ */ r.Path("/images").Methods("POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { log.Println(r.Method, r.RequestURI) if err := r.ParseForm(); err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) } - src := r.Form.Get("src") + + src := r.Form.Get("fromSrc") + image := r.Form.Get("fromImage") + container := r.Form.Get("fromContainer") repo := r.Form.Get("repo") tag := r.Form.Get("tag") - var archive io.Reader - var resp *http.Response + if container != "" { //commit + var config Config + if err := json.NewDecoder(r.Body).Decode(&config); err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + return + } + author := r.Form.Get("author") + comment := r.Form.Get("comment") - conn, _, err := w.(http.Hijacker).Hijack() - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - defer conn.Close() - file, err := conn.(*net.TCPConn).File() - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - defer file.Close() + id, err := srv.ContainerCommit(container, repo, tag, author, comment, &config) + if err != nil { + httpError(w, err) + } + b, err := json.Marshal(ApiId{id}) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + } else { + w.Write(b) + } + } else if image != "" || src != "" { + file, rwc, err := hijackServer(w) + if file != nil { + defer file.Close() + } + if rwc != nil { + defer rwc.Close() + } + if err != nil { + httpError(w, err) + return + } + fmt.Fprintf(file, "HTTP/1.1 200 OK\r\nContent-Type: raw-stream-hijack\r\n\r\n") - fmt.Fprintln(file, "HTTP/1.1 201 Created\r\nContent-Type: application/json\r\n\r\n") - if src == "-" { - r, w := io.Pipe() - go func() { - defer w.Close() - defer Debugf("Closing buffered stdin pipe") - io.Copy(w, file) - }() - archive = r + if image != "" { //pull + if err := srv.ImagePull(image, file); err != nil { + fmt.Fprintln(file, "Error: "+err.Error()) + } + } else { //import + if err := srv.ImageImport(src, repo, tag, file); err != nil { + fmt.Fprintln(file, "Error: "+err.Error()) + } + } } else { - u, err := url.Parse(src) - if err != nil { - fmt.Fprintln(file, "Error: "+err.Error()) - } - if u.Scheme == "" { - u.Scheme = "http" - u.Host = src - u.Path = "" - } - fmt.Fprintln(file, "Downloading from", u) - // Download with curl (pretty progress bar) - // If curl is not available, fallback to http.Get() - resp, err = Download(u.String(), file) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - archive = ProgressReader(resp.Body, int(resp.ContentLength), file, "Importing %v/%v (%v)") + w.WriteHeader(http.StatusNotFound) } - img, err := rtime.graph.Create(archive, nil, "Imported from "+src, "", nil) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - // Optionally register the image at REPO/TAG - if repo != "" { - if err := rtime.repositories.Set(repo, tag, img.Id, true); err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - } - - fmt.Fprintln(file, img.ShortId()) }) r.Path("/containers").Methods("POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { @@ -466,37 +279,19 @@ func ListenAndServe(addr string, rtime *Runtime) error { http.Error(w, err.Error(), http.StatusInternalServerError) return } - var memoryW, swapW bool - - if config.Memory > 0 && !rtime.capabilities.MemoryLimit { - memoryW = true - log.Println("WARNING: Your kernel does not support memory limit capabilities. Limitation discarded.") - config.Memory = 0 - } - - if config.Memory > 0 && !rtime.capabilities.SwapLimit { - swapW = true - log.Println("WARNING: Your kernel does not support swap limit capabilities. Limitation discarded.") - config.MemorySwap = -1 - } - container, err := rtime.Create(&config) + id, memoryW, swapW, err := srv.ContainerCreate(config) if err != nil { - if rtime.graph.IsNotExist(err) { - http.Error(w, "No such image: "+config.Image, http.StatusNotFound) - } else { - http.Error(w, err.Error(), http.StatusInternalServerError) - } + httpError(w, err) return } var out ApiRun - out.Id = container.ShortId() + out.Id = id if memoryW { out.Warnings = append(out.Warnings, "Your kernel does not support memory limit capabilities. Limitation discarded.") } if swapW { out.Warnings = append(out.Warnings, "Your kernel does not support memory swap capabilities. Limitation discarded.") } - b, err := json.Marshal(out) if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) @@ -516,66 +311,44 @@ func ListenAndServe(addr string, rtime *Runtime) error { } vars := mux.Vars(r) name := vars["name"] - if container := rtime.Get(name); container != nil { - if err := container.Restart(t); err != nil { - http.Error(w, "Error restarting container "+name+": "+err.Error(), http.StatusInternalServerError) - return - } + if err := srv.ContainerRestart(name, t); err != nil { + httpError(w, err) } else { - http.Error(w, "No such container: "+name, http.StatusNotFound) - return + w.WriteHeader(http.StatusOK) } - w.WriteHeader(http.StatusOK) }) r.Path("/containers/{name:.*}").Methods("DELETE").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { log.Println(r.Method, r.RequestURI) vars := mux.Vars(r) name := vars["name"] - if container := rtime.Get(name); container != nil { - if err := rtime.Destroy(container); err != nil { - http.Error(w, "Error destroying container "+name+": "+err.Error(), http.StatusInternalServerError) - return - } + if err := srv.ContainerDestroy(name); err != nil { + httpError(w, err) } else { - http.Error(w, "No such container: "+name, http.StatusNotFound) - return + w.WriteHeader(http.StatusOK) } - w.WriteHeader(http.StatusOK) }) r.Path("/images/{name:.*}").Methods("DELETE").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { log.Println(r.Method, r.RequestURI) vars := mux.Vars(r) name := vars["name"] - - img, err := rtime.repositories.LookupImage(name) - if err != nil { - http.Error(w, "No such image: "+name, http.StatusNotFound) - return + if err := srv.ImageDelete(name); err != nil { + httpError(w, err) } else { - if err := rtime.graph.Delete(img.Id); err != nil { - http.Error(w, "Error deleting image "+name+": "+err.Error(), http.StatusInternalServerError) - return - } + w.WriteHeader(http.StatusOK) } - w.WriteHeader(http.StatusOK) }) r.Path("/containers/{name:.*}/start").Methods("POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { log.Println(r.Method, r.RequestURI) vars := mux.Vars(r) name := vars["name"] - if container := rtime.Get(name); container != nil { - if err := container.Start(); err != nil { - http.Error(w, "Error starting container "+name+": "+err.Error(), http.StatusInternalServerError) - return - } + if err := srv.ContainerStart(name); err != nil { + httpError(w, err) } else { - http.Error(w, "No such container: "+name, http.StatusNotFound) - return + w.WriteHeader(http.StatusOK) } - w.WriteHeader(http.StatusOK) }) r.Path("/containers/{name:.*}/stop").Methods("POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { @@ -589,33 +362,27 @@ func ListenAndServe(addr string, rtime *Runtime) error { } vars := mux.Vars(r) name := vars["name"] - if container := rtime.Get(name); container != nil { - if err := container.Stop(t); err != nil { - http.Error(w, "Error stopping container "+name+": "+err.Error(), http.StatusInternalServerError) - return - } + + if err := srv.ContainerStop(name, t); err != nil { + httpError(w, err) } else { - http.Error(w, "No such container: "+name, http.StatusNotFound) - return + w.WriteHeader(http.StatusOK) } - w.WriteHeader(http.StatusOK) }) r.Path("/containers/{name:.*}/wait").Methods("POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { log.Println(r.Method, r.RequestURI) vars := mux.Vars(r) name := vars["name"] - if container := rtime.Get(name); container != nil { - b, err := json.Marshal(ApiWait{container.Wait()}) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - } else { - w.Write(b) - } - return + status, err := srv.ContainerWait(name) + if err != nil { + httpError(w, err) + } + b, err := json.Marshal(ApiWait{status}) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) } else { - http.Error(w, "No such container: "+name, http.StatusNotFound) - return + w.Write(b) } }) @@ -632,90 +399,21 @@ func ListenAndServe(addr string, rtime *Runtime) error { vars := mux.Vars(r) name := vars["name"] - if container := rtime.Get(name); container != nil { - conn, _, err := w.(http.Hijacker).Hijack() - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - defer conn.Close() - file, err := conn.(*net.TCPConn).File() - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } + file, rwc, err := hijackServer(w) + if file != nil { defer file.Close() + } + if rwc != nil { + defer rwc.Close() + } + if err != nil { + httpError(w, err) + return + } - // Flush the options to make sure the client sets the raw mode - conn.Write([]byte{}) - - fmt.Fprintln(file, "HTTP/1.1 200 OK\r\nContent-Type: raw-stream-hijack\r\n\r\n") - //logs - if logs == "1" { - if stdout == "1" { - cLog, err := container.ReadLog("stdout") - if err != nil { - Debugf(err.Error()) - } else if _, err := io.Copy(file, cLog); err != nil { - Debugf(err.Error()) - } - } - if stderr == "1" { - cLog, err := container.ReadLog("stderr") - if err != nil { - Debugf(err.Error()) - } else if _, err := io.Copy(file, cLog); err != nil { - Debugf(err.Error()) - } - } - } - - //stream - if stream == "1" { - - if container.State.Ghost { - fmt.Fprintf(file, "error: Impossible to attach to a ghost container") - return - } - - if container.Config.Tty { - oldState, err := SetRawTerminal() - if err != nil { - if os.Getenv("DEBUG") != "" { - log.Printf("Can't set the terminal in raw mode: %s", err) - } - } else { - defer RestoreTerminal(oldState) - } - - } - var ( - cStdin io.ReadCloser - cStdout, cStderr io.Writer - cStdinCloser io.Closer - ) - - if stdin == "1" { - r, w := io.Pipe() - go func() { - defer w.Close() - defer Debugf("Closing buffered stdin pipe") - io.Copy(w, file) - }() - cStdin = r - cStdinCloser = file - } - if stdout == "1" { - cStdout = file - } - if stderr == "1" { - cStderr = file - } - - <-container.Attach(cStdin, cStdinCloser, cStdout, cStderr) - } - } else { - http.Error(w, "No such container: "+name, http.StatusNotFound) + fmt.Fprintf(file, "HTTP/1.1 200 OK\r\nContent-Type: raw-stream-hijack\r\n\r\n") + if err := srv.ContainerAttach(name, logs, stream, stdin, stdout, stderr, file); err != nil { + fmt.Fprintln(file, "Error: "+err.Error()) } }) @@ -724,16 +422,16 @@ func ListenAndServe(addr string, rtime *Runtime) error { vars := mux.Vars(r) name := vars["name"] - if container := rtime.Get(name); container != nil { - b, err := json.Marshal(container) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - } else { - w.Write(b) - } - return + container, err := srv.ContainerInspect(name) + if err != nil { + httpError(w, err) + } + b, err := json.Marshal(container) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + } else { + w.Write(b) } - http.Error(w, "No such container: "+name, http.StatusNotFound) }) r.Path("/images/{name:.*}").Methods("GET").HandlerFunc(func(w http.ResponseWriter, r *http.Request) { @@ -741,16 +439,16 @@ func ListenAndServe(addr string, rtime *Runtime) error { vars := mux.Vars(r) name := vars["name"] - if image, err := rtime.repositories.LookupImage(name); err == nil && image != nil { - b, err := json.Marshal(image) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - } else { - w.Write(b) - } - return + image, err := srv.ImageInspect(name) + if err != nil { + httpError(w, err) + } + b, err := json.Marshal(image) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + } else { + w.Write(b) } - http.Error(w, "No such image: "+name, http.StatusNotFound) }) return http.ListenAndServe(addr, r) diff --git a/commands.go b/commands.go index d847ed365f..87c6dcc55e 100644 --- a/commands.go +++ b/commands.go @@ -24,9 +24,30 @@ var ( GIT_COMMIT string ) -func ParseCommands(args []string) error { +func checkRemoteVersion() error { + body, _, err := call("GET", "/version", nil) + if err != nil { + return fmt.Errorf("Can't connect to docker daemon. Is 'docker -d' running on this host?") + } - cmds := map[string]func(args []string) error{ + var out ApiVersion + err = json.Unmarshal(body, &out) + if err != nil { + return err + } + if out.Version != VERSION { + fmt.Fprintf(os.Stderr, "Warning: client and server don't have the same version (client: %s, server: %)", VERSION, out.Version) + } + return nil +} + +func ParseCommands(args ...string) error { + + if err := checkRemoteVersion(); err != nil { + return err + } + + cmds := map[string]func(args ...string) error{ "attach": CmdAttach, "commit": CmdCommit, "diff": CmdDiff, @@ -34,7 +55,7 @@ func ParseCommands(args []string) error { "images": CmdImages, "info": CmdInfo, "inspect": CmdInspect, - //"import": CmdImport, + "import": CmdImport, "history": CmdHistory, "kill": CmdKill, "logs": CmdLogs, @@ -56,14 +77,14 @@ func ParseCommands(args []string) error { cmd, exists := cmds[args[0]] if !exists { fmt.Println("Error: Command not found:", args[0]) - return cmdHelp(args) + return cmdHelp(args...) } - return cmd(args[1:]) + return cmd(args[1:]...) } - return cmdHelp(args) + return cmdHelp(args...) } -func cmdHelp(args []string) error { +func cmdHelp(args ...string) error { help := "Usage: docker COMMAND [arg...]\n\nA self-sufficient runtime for linux containers.\n\nCommands:\n" for _, cmd := range [][]string{ {"attach", "Attach to a running container"}, @@ -72,7 +93,7 @@ func cmdHelp(args []string) error { {"export", "Stream the contents of a container as a tar archive"}, {"history", "Show the history of an image"}, {"images", "List images"}, - //{"import", "Create a new filesystem image from the contents of a tarball"}, + {"import", "Create a new filesystem image from the contents of a tarball"}, {"info", "Display system-wide information"}, {"inspect", "Return low-level information on a container/image"}, {"kill", "Kill a running container"}, @@ -199,7 +220,7 @@ func (srv *Server) CmdLogin(stdin io.ReadCloser, stdout rcli.DockerConn, args .. */ // 'docker wait': block until a container stops -func CmdWait(args []string) error { +func CmdWait(args ...string) error { cmd := Subcmd("wait", "CONTAINER [CONTAINER...]", "Block until a container stops, then print its exit code.") if err := cmd.Parse(args); err != nil { return nil @@ -225,7 +246,7 @@ func CmdWait(args []string) error { } // 'docker version': show version information -func CmdVersion(args []string) error { +func CmdVersion(args ...string) error { cmd := Subcmd("version", "", "Show the docker version information.") if err := cmd.Parse(args); err != nil { return nil @@ -258,7 +279,7 @@ func CmdVersion(args []string) error { } // 'docker info': display system-wide information. -func CmdInfo(args []string) error { +func CmdInfo(args ...string) error { cmd := Subcmd("info", "", "Display system-wide information") if err := cmd.Parse(args); err != nil { return nil @@ -286,7 +307,7 @@ func CmdInfo(args []string) error { return nil } -func CmdStop(args []string) error { +func CmdStop(args ...string) error { cmd := Subcmd("stop", "[OPTIONS] CONTAINER [CONTAINER...]", "Stop a running container") nSeconds := cmd.Int("t", 10, "wait t seconds before killing the container") if err := cmd.Parse(args); err != nil { @@ -311,7 +332,7 @@ func CmdStop(args []string) error { return nil } -func CmdRestart(args []string) error { +func CmdRestart(args ...string) error { cmd := Subcmd("restart", "[OPTIONS] CONTAINER [CONTAINER...]", "Restart a running container") nSeconds := cmd.Int("t", 10, "wait t seconds before killing the container") if err := cmd.Parse(args); err != nil { @@ -336,7 +357,7 @@ func CmdRestart(args []string) error { return nil } -func CmdStart(args []string) error { +func CmdStart(args ...string) error { cmd := Subcmd("start", "CONTAINER [CONTAINER...]", "Restart a stopped container") if err := cmd.Parse(args); err != nil { return nil @@ -357,7 +378,7 @@ func CmdStart(args []string) error { return nil } -func CmdInspect(args []string) error { +func CmdInspect(args ...string) error { cmd := Subcmd("inspect", "CONTAINER|IMAGE", "Return low-level information on a container/image") if err := cmd.Parse(args); err != nil { return nil @@ -377,7 +398,7 @@ func CmdInspect(args []string) error { return nil } -func CmdPort(args []string) error { +func CmdPort(args ...string) error { cmd := Subcmd("port", "CONTAINER PRIVATE_PORT", "Lookup the public-facing port which is NAT-ed to PRIVATE_PORT") if err := cmd.Parse(args); err != nil { return nil @@ -403,7 +424,7 @@ func CmdPort(args []string) error { } // 'docker rmi IMAGE' removes all images with the name IMAGE -func CmdRmi(args []string) error { +func CmdRmi(args ...string) error { cmd := Subcmd("rmi", "IMAGE [IMAGE...]", "Remove an image") if err := cmd.Parse(args); err != nil { return nil @@ -424,7 +445,7 @@ func CmdRmi(args []string) error { return nil } -func CmdHistory(args []string) error { +func CmdHistory(args ...string) error { cmd := Subcmd("history", "IMAGE", "Show the history of an image") if err := cmd.Parse(args); err != nil { return nil @@ -454,7 +475,7 @@ func CmdHistory(args []string) error { return nil } -func CmdRm(args []string) error { +func CmdRm(args ...string) error { cmd := Subcmd("rm", "CONTAINER [CONTAINER...]", "Remove a container") if err := cmd.Parse(args); err != nil { return nil @@ -476,7 +497,7 @@ func CmdRm(args []string) error { } // 'docker kill NAME' kills a running container -func CmdKill(args []string) error { +func CmdKill(args ...string) error { cmd := Subcmd("kill", "CONTAINER [CONTAINER...]", "Kill a running container") if err := cmd.Parse(args); err != nil { return nil @@ -498,7 +519,7 @@ func CmdKill(args []string) error { } /* /!\ W.I.P /!\ */ -func CmdImport(args []string) error { +func CmdImport(args ...string) error { cmd := Subcmd("import", "URL|- [REPOSITORY [TAG]]", "Create a new filesystem image from the contents of a tarball") if err := cmd.Parse(args); err != nil { @@ -512,7 +533,7 @@ func CmdImport(args []string) error { v := url.Values{} v.Set("repo", repository) v.Set("tag", tag) - v.Set("src", src) + v.Set("fromSrc", src) err := hijack("POST", "/images?"+v.Encode(), false) if err != nil { @@ -582,7 +603,7 @@ func (srv *Server) CmdPush(stdin io.ReadCloser, stdout rcli.DockerConn, args ... } */ -func CmdPull(args []string) error { +func CmdPull(args ...string) error { cmd := Subcmd("pull", "NAME", "Pull an image or a repository from the registry") if err := cmd.Parse(args); err != nil { return nil @@ -592,15 +613,17 @@ func CmdPull(args []string) error { cmd.Usage() return nil } + v := url.Values{} + v.Set("fromImage", cmd.Arg(0)) - if err := hijack("POST", "/images/"+cmd.Arg(0)+"/pull", false); err != nil { + if err := hijack("POST", "/images?"+v.Encode(), false); err != nil { return err } return nil } -func CmdImages(args []string) error { +func CmdImages(args ...string) error { cmd := Subcmd("images", "[OPTIONS] [NAME]", "List images") quiet := cmd.Bool("q", false, "only show numeric IDs") all := cmd.Bool("a", false, "show all images") @@ -652,7 +675,7 @@ func CmdImages(args []string) error { return nil } -func CmdPs(args []string) error { +func CmdPs(args ...string) error { cmd := Subcmd("ps", "[OPTIONS]", "List containers") quiet := cmd.Bool("q", false, "Only display numeric IDs") all := cmd.Bool("a", false, "Show all containers. Only running containers are shown by default.") @@ -709,7 +732,7 @@ func CmdPs(args []string) error { return nil } -func CmdCommit(args []string) error { +func CmdCommit(args ...string) error { cmd := Subcmd("commit", "[OPTIONS] CONTAINER [REPOSITORY [TAG]]", "Create a new image from a container's changes") flComment := cmd.String("m", "", "Commit message") flAuthor := cmd.String("author", "", "Author (eg. \"John Hannibal Smith \"") @@ -724,6 +747,7 @@ func CmdCommit(args []string) error { } v := url.Values{} + v.Set("fromContainer", name) v.Set("repo", repository) v.Set("tag", tag) v.Set("comment", *flComment) @@ -736,7 +760,7 @@ func CmdCommit(args []string) error { } } - body, _, err := call("POST", "/containers/"+name+"/commit?"+v.Encode(), config) + body, _, err := call("POST", "/images?"+v.Encode(), config) if err != nil { return err } @@ -751,7 +775,7 @@ func CmdCommit(args []string) error { return nil } -func CmdExport(args []string) error { +func CmdExport(args ...string) error { cmd := Subcmd("export", "CONTAINER", "Export the contents of a filesystem as a tar archive") if err := cmd.Parse(args); err != nil { return nil @@ -768,7 +792,7 @@ func CmdExport(args []string) error { return nil } -func CmdDiff(args []string) error { +func CmdDiff(args ...string) error { cmd := Subcmd("diff", "CONTAINER", "Inspect changes on a container's filesystem") if err := cmd.Parse(args); err != nil { return nil @@ -794,7 +818,7 @@ func CmdDiff(args []string) error { return nil } -func CmdLogs(args []string) error { +func CmdLogs(args ...string) error { cmd := Subcmd("logs", "CONTAINER", "Fetch the logs of a container") if err := cmd.Parse(args); err != nil { return nil @@ -815,7 +839,7 @@ func CmdLogs(args []string) error { return nil } -func CmdAttach(args []string) error { +func CmdAttach(args ...string) error { cmd := Subcmd("attach", "CONTAINER", "Attach to a running container") if err := cmd.Parse(args); err != nil { return nil @@ -906,7 +930,7 @@ func (opts AttachOpts) Get(val string) bool { return false } -func CmdTag(args []string) error { +func CmdTag(args ...string) error { cmd := Subcmd("tag", "[OPTIONS] IMAGE REPOSITORY [TAG]", "Tag an image into a repository") force := cmd.Bool("f", false, "Force") if err := cmd.Parse(args); err != nil { @@ -933,7 +957,7 @@ func CmdTag(args []string) error { return nil } -func CmdRun(args []string) error { +func CmdRun(args ...string) error { config, cmd, err := ParseRun(args) if err != nil { return err @@ -952,11 +976,18 @@ func CmdRun(args []string) error { //if image not found try to pull it if statusCode == 404 { - err = hijack("POST", "/images/"+config.Image+"/pull", false) + v := url.Values{} + v.Set("fromImage", config.Image) + err = hijack("POST", "/images?"+v.Encode(), false) if err != nil { return err } body, _, err = call("POST", "/containers", *config) + if err != nil { + return err + } + return nil + } if err != nil { return err @@ -1001,6 +1032,18 @@ func CmdRun(args []string) error { if err := hijack("POST", "/containers/"+out.Id+"/attach?"+v.Encode(), config.Tty); err != nil { return err } + body, _, err := call("POST", "/containers/"+out.Id+"/wait", nil) + if err != nil { + fmt.Printf("%s", err) + } else { + var out ApiWait + err = json.Unmarshal(body, &out) + if err != nil { + return err + } + os.Exit(out.StatusCode) + } + } else { fmt.Println(out.Id) } @@ -1054,9 +1097,14 @@ func hijack(method, path string, setRawTerminal bool) error { clientconn.Do(req) defer clientconn.Close() - rwc, _ := clientconn.Hijack() + rwc, br := clientconn.Hijack() defer rwc.Close() + receiveStdout := Go(func() error { + _, err := io.Copy(os.Stdout, br) + return err + }) + if setRawTerminal && term.IsTerminal(int(os.Stdin.Fd())) && os.Getenv("NORAW") == "" { if oldState, err := SetRawTerminal(); err != nil { return err @@ -1065,10 +1113,6 @@ func hijack(method, path string, setRawTerminal bool) error { } } - receiveStdout := Go(func() error { - _, err := io.Copy(os.Stdout, rwc) - return err - }) sendStdin := Go(func() error { _, err := io.Copy(rwc, os.Stdin) rwc.Close() diff --git a/commands_test.go b/commands_test.go index 83b480d52a..784ef41965 100644 --- a/commands_test.go +++ b/commands_test.go @@ -1,16 +1,17 @@ package docker import ( - "bufio" + /*"bufio" "fmt" "github.com/dotcloud/docker/rcli" "io" "io/ioutil" - "strings" + "strings"*/ "testing" "time" ) +/*TODO func closeWrap(args ...io.Closer) error { e := false ret := fmt.Errorf("Error closing elements") @@ -25,7 +26,7 @@ func closeWrap(args ...io.Closer) error { } return nil } - +*/ func setTimeout(t *testing.T, msg string, d time.Duration, f func()) { c := make(chan bool) @@ -43,6 +44,7 @@ func setTimeout(t *testing.T, msg string, d time.Duration, f func()) { } } +/*TODO func assertPipe(input, output string, r io.Reader, w io.Writer, count int) error { for i := 0; i < count; i++ { if _, err := w.Write([]byte(input)); err != nil { @@ -396,3 +398,4 @@ func TestAttachDisconnect(t *testing.T) { cStdin.Close() container.Wait() } +*/ diff --git a/docker/docker.go b/docker/docker.go index 80d424be3c..7cfc39c03e 100644 --- a/docker/docker.go +++ b/docker/docker.go @@ -4,14 +4,10 @@ import ( "flag" "fmt" "github.com/dotcloud/docker" - "github.com/dotcloud/docker/rcli" - "github.com/dotcloud/docker/term" - "io" "io/ioutil" "log" "os" "os/signal" - "runtime" "strconv" "syscall" ) @@ -49,10 +45,12 @@ func main() { } if err := daemon(*pidfile, *flAutoRestart); err != nil { log.Fatal(err) + os.Exit(-1) } } else { - if err := docker.ParseCommands(flag.Args()); err != nil { + if err := docker.ParseCommands(flag.Args()...); err != nil { log.Fatal(err) + os.Exit(-1) } } } @@ -99,54 +97,10 @@ func daemon(pidfile string, autoRestart bool) error { os.Exit(0) }() - if runtime.GOARCH != "amd64" { - log.Fatalf("The docker runtime currently only supports amd64 (not %s). This will change in the future. Aborting.", runtime.GOARCH) - } - runtime, err := docker.NewRuntime(autoRestart) + server, err := docker.NewServer(autoRestart) if err != nil { return err } - return docker.ListenAndServe("0.0.0.0:4243", runtime) -} - -func runCommand(args []string) error { - // FIXME: we want to use unix sockets here, but net.UnixConn doesn't expose - // CloseWrite(), which we need to cleanly signal that stdin is closed without - // closing the connection. - // See http://code.google.com/p/go/issues/detail?id=3345 - if conn, err := rcli.Call("tcp", "127.0.0.1:4242", args...); err == nil { - options := conn.GetOptions() - if options.RawTerminal && - term.IsTerminal(int(os.Stdin.Fd())) && - os.Getenv("NORAW") == "" { - if oldState, err := rcli.SetRawTerminal(); err != nil { - return err - } else { - defer rcli.RestoreTerminal(oldState) - } - } - receiveStdout := docker.Go(func() error { - _, err := io.Copy(os.Stdout, conn) - return err - }) - sendStdin := docker.Go(func() error { - _, err := io.Copy(conn, os.Stdin) - if err := conn.CloseWrite(); err != nil { - log.Printf("Couldn't send EOF: " + err.Error()) - } - return err - }) - if err := <-receiveStdout; err != nil { - return err - } - if !term.IsTerminal(int(os.Stdin.Fd())) { - if err := <-sendStdin; err != nil { - return err - } - } - } else { - return fmt.Errorf("Can't connect to docker daemon. Is 'docker -d' running on this host?") - } - return nil + return docker.ListenAndServe("0.0.0.0:4243", server) } diff --git a/runtime_test.go b/runtime_test.go index e9be838c0e..d9e504e1a6 100644 --- a/runtime_test.go +++ b/runtime_test.go @@ -2,7 +2,6 @@ package docker import ( "fmt" - "github.com/dotcloud/docker/rcli" "io" "io/ioutil" "net" @@ -67,12 +66,13 @@ func init() { if err != nil { panic(err) } + // Create the "Server" srv := &Server{ runtime: runtime, } // Retrieve the Image - if err := srv.CmdPull(os.Stdin, rcli.NewDockerLocalConn(os.Stdout), unitTestImageName); err != nil { + if err := srv.ImagePull(unitTestImageName, os.Stdout); err != nil { panic(err) } } diff --git a/server.go b/server.go new file mode 100644 index 0000000000..ddf1f849e7 --- /dev/null +++ b/server.go @@ -0,0 +1,448 @@ +package docker + +import ( + "fmt" + "io" + "log" + "net/http" + "net/url" + "os" + "runtime" + "strings" +) + +func (srv *Server) DockerVersion() ApiVersion { + return ApiVersion{VERSION, GIT_COMMIT, srv.runtime.capabilities.MemoryLimit, srv.runtime.capabilities.SwapLimit} +} + +func (srv *Server) ContainerKill(name string) error { + if container := srv.runtime.Get(name); container != nil { + if err := container.Kill(); err != nil { + return fmt.Errorf("Error restarting container %s: %s", name, err.Error()) + } + } else { + return fmt.Errorf("No such container: %s", name) + } + return nil +} + +func (srv *Server) ContainerExport(name string, file *os.File) error { + if container := srv.runtime.Get(name); container != nil { + + data, err := container.Export() + if err != nil { + return err + } + + // Stream the entire contents of the container (basically a volatile snapshot) + if _, err := io.Copy(file, data); err != nil { + return err + } + return nil + } + return fmt.Errorf("No such container: %s", name) +} + +func (srv *Server) Images(all, filter, quiet string) ([]ApiImages, error) { + var allImages map[string]*Image + var err error + if all == "1" { + allImages, err = srv.runtime.graph.Map() + } else { + allImages, err = srv.runtime.graph.Heads() + } + if err != nil { + return nil, err + } + var outs []ApiImages = []ApiImages{} //produce [] when empty instead of 'null' + for name, repository := range srv.runtime.repositories.Repositories { + if filter != "" && name != filter { + continue + } + for tag, id := range repository { + var out ApiImages + image, err := srv.runtime.graph.Get(id) + if err != nil { + log.Printf("Warning: couldn't load %s from %s/%s: %s", id, name, tag, err) + continue + } + delete(allImages, id) + if quiet != "1" { + out.Repository = name + out.Tag = tag + out.Id = TruncateId(id) + out.Created = image.Created.Unix() + } else { + out.Id = image.ShortId() + } + outs = append(outs, out) + } + } + // Display images which aren't part of a + if filter == "" { + for id, image := range allImages { + var out ApiImages + if quiet != "1" { + out.Repository = "" + out.Tag = "" + out.Id = TruncateId(id) + out.Created = image.Created.Unix() + } else { + out.Id = image.ShortId() + } + outs = append(outs, out) + } + } + return outs, nil +} + +func (srv *Server) DockerInfo() ApiInfo { + images, _ := srv.runtime.graph.All() + var imgcount int + if images == nil { + imgcount = 0 + } else { + imgcount = len(images) + } + var out ApiInfo + out.Containers = len(srv.runtime.List()) + out.Version = VERSION + out.Images = imgcount + if os.Getenv("DEBUG") == "1" { + out.Debug = true + out.NFd = getTotalUsedFds() + out.NGoroutines = runtime.NumGoroutine() + } + return out +} + +func (srv *Server) ImageHistory(name string) ([]ApiHistory, error) { + image, err := srv.runtime.repositories.LookupImage(name) + if err != nil { + return nil, err + } + + var outs []ApiHistory = []ApiHistory{} //produce [] when empty instead of 'null' + err = image.WalkHistory(func(img *Image) error { + var out ApiHistory + out.Id = srv.runtime.repositories.ImageName(img.ShortId()) + out.Created = img.Created.Unix() + out.CreatedBy = strings.Join(img.ContainerConfig.Cmd, " ") + outs = append(outs, out) + return nil + }) + return outs, nil + +} + +func (srv *Server) ContainerChanges(name string) ([]string, error) { + if container := srv.runtime.Get(name); container != nil { + changes, err := container.Changes() + if err != nil { + return nil, err + } + var changesStr []string + for _, name := range changes { + changesStr = append(changesStr, name.String()) + } + return changesStr, nil + } + return nil, fmt.Errorf("No such container: %s", name) +} + +func (srv *Server) ContainerPort(name, privatePort string) (string, error) { + if container := srv.runtime.Get(name); container != nil { + if frontend, exists := container.NetworkSettings.PortMapping[privatePort]; exists { + return frontend, nil + } + return "", fmt.Errorf("No private port '%s' allocated on %s", privatePort, name) + } + return "", fmt.Errorf("No such container: %s", name) +} + +func (srv *Server) Containers(all, notrunc, quiet string, n int) []ApiContainers { + var outs []ApiContainers = []ApiContainers{} //produce [] when empty instead of 'null' + for i, container := range srv.runtime.List() { + if !container.State.Running && all != "1" && n == -1 { + continue + } + if i == n { + break + } + var out ApiContainers + out.Id = container.ShortId() + if quiet != "1" { + command := fmt.Sprintf("%s %s", container.Path, strings.Join(container.Args, " ")) + if notrunc != "1" { + command = Trunc(command, 20) + } + out.Image = srv.runtime.repositories.ImageName(container.Image) + out.Command = command + out.Created = container.Created.Unix() + out.Status = container.State.String() + out.Ports = container.NetworkSettings.PortMappingHuman() + } + outs = append(outs, out) + } + return outs +} + +func (srv *Server) ContainerCommit(name, repo, tag, author, comment string, config *Config) (string, error) { + img, err := srv.runtime.Commit(name, repo, tag, comment, author, config) + if err != nil { + return "", err + } + return img.ShortId(), err +} + +func (srv *Server) ContainerTag(name, repo, tag string, force bool) error { + if err := srv.runtime.repositories.Set(repo, tag, name, force); err != nil { + return err + } + return nil +} + +func (srv *Server) ImagePull(name string, file *os.File) error { + if srv.runtime.graph.LookupRemoteImage(name, srv.runtime.authConfig) { + if err := srv.runtime.graph.PullImage(file, name, srv.runtime.authConfig); err != nil { + return err + } + } + if err := srv.runtime.graph.PullRepository(file, name, "", srv.runtime.repositories, srv.runtime.authConfig); err != nil { + return err + } + return nil +} + +func (srv *Server) ImageImport(src, repo, tag string, file *os.File) error { + var archive io.Reader + var resp *http.Response + + if src == "-" { + r, w := io.Pipe() + go func() { + defer w.Close() + defer Debugf("Closing buffered stdin pipe") + io.Copy(w, file) + }() + archive = r + } else { + u, err := url.Parse(src) + if err != nil { + fmt.Fprintln(file, "Error: "+err.Error()) + } + if u.Scheme == "" { + u.Scheme = "http" + u.Host = src + u.Path = "" + } + fmt.Fprintln(file, "Downloading from", u) + // Download with curl (pretty progress bar) + // If curl is not available, fallback to http.Get() + resp, err = Download(u.String(), file) + if err != nil { + return err + } + archive = ProgressReader(resp.Body, int(resp.ContentLength), file, "Importing %v/%v (%v)") + } + img, err := srv.runtime.graph.Create(archive, nil, "Imported from "+src, "", nil) + if err != nil { + return err + } + // Optionally register the image at REPO/TAG + if repo != "" { + if err := srv.runtime.repositories.Set(repo, tag, img.Id, true); err != nil { + return err + } + } + fmt.Fprintln(file, img.ShortId()) + return nil +} + +func (srv *Server) ContainerCreate(config Config) (string, bool, bool, error) { + var memoryW, swapW bool + + if config.Memory > 0 && !srv.runtime.capabilities.MemoryLimit { + memoryW = true + log.Println("WARNING: Your kernel does not support memory limit capabilities. Limitation discarded.") + config.Memory = 0 + } + + if config.Memory > 0 && !srv.runtime.capabilities.SwapLimit { + swapW = true + log.Println("WARNING: Your kernel does not support swap limit capabilities. Limitation discarded.") + config.MemorySwap = -1 + } + container, err := srv.runtime.Create(&config) + if err != nil { + if srv.runtime.graph.IsNotExist(err) { + return "", false, false, fmt.Errorf("No such image: %s", config.Image) + } + return "", false, false, err + } + return container.ShortId(), memoryW, swapW, nil +} + +func (srv *Server) ContainerRestart(name string, t int) error { + if container := srv.runtime.Get(name); container != nil { + if err := container.Restart(t); err != nil { + return fmt.Errorf("Error restarting container %s: %s", name, err.Error()) + } + } else { + return fmt.Errorf("No such container: %s", name) + } + return nil +} + +func (srv *Server) ContainerDestroy(name string) error { + if container := srv.runtime.Get(name); container != nil { + if err := srv.runtime.Destroy(container); err != nil { + return fmt.Errorf("Error destroying container %s: %s", name, err.Error()) + } + } else { + return fmt.Errorf("No such container: %s", name) + } + return nil +} + +func (srv *Server) ImageDelete(name string) error { + img, err := srv.runtime.repositories.LookupImage(name) + if err != nil { + return fmt.Errorf("No such image: %s", name) + } else { + if err := srv.runtime.graph.Delete(img.Id); err != nil { + return fmt.Errorf("Error deleteing image %s: %s", name, err.Error()) + } + } + return nil +} + +func (srv *Server) ContainerStart(name string) error { + if container := srv.runtime.Get(name); container != nil { + if err := container.Start(); err != nil { + return fmt.Errorf("Error starting container %s: %s", name, err.Error()) + } + } else { + return fmt.Errorf("No such container: %s", name) + } + return nil +} + +func (srv *Server) ContainerStop(name string, t int) error { + if container := srv.runtime.Get(name); container != nil { + if err := container.Stop(t); err != nil { + return fmt.Errorf("Error stopping container %s: %s", name, err.Error()) + } + } else { + return fmt.Errorf("No such container: %s", name) + } + return nil +} + +func (srv *Server) ContainerWait(name string) (int, error) { + if container := srv.runtime.Get(name); container != nil { + return container.Wait(), nil + } + return 0, fmt.Errorf("No such container: %s", name) +} + +func (srv *Server) ContainerAttach(name, logs, stream, stdin, stdout, stderr string, file *os.File) error { + if container := srv.runtime.Get(name); container != nil { + //logs + if logs == "1" { + if stdout == "1" { + cLog, err := container.ReadLog("stdout") + if err != nil { + Debugf(err.Error()) + } else if _, err := io.Copy(file, cLog); err != nil { + Debugf(err.Error()) + } + } + if stderr == "1" { + cLog, err := container.ReadLog("stderr") + if err != nil { + Debugf(err.Error()) + } else if _, err := io.Copy(file, cLog); err != nil { + Debugf(err.Error()) + } + } + } + + //stream + if stream == "1" { + if container.State.Ghost { + return fmt.Errorf("Impossible to attach to a ghost container") + } + + if container.Config.Tty { + oldState, err := SetRawTerminal() + if err != nil { + if os.Getenv("DEBUG") != "" { + log.Printf("Can't set the terminal in raw mode: %s", err) + } + } else { + defer RestoreTerminal(oldState) + } + } + var ( + cStdin io.ReadCloser + cStdout, cStderr io.Writer + cStdinCloser io.Closer + ) + + if stdin == "1" { + r, w := io.Pipe() + go func() { + defer w.Close() + defer Debugf("Closing buffered stdin pipe") + io.Copy(w, file) + }() + cStdin = r + cStdinCloser = file + } + if stdout == "1" { + cStdout = file + } + if stderr == "1" { + cStderr = file + } + + <-container.Attach(cStdin, cStdinCloser, cStdout, cStderr) + } + } else { + return fmt.Errorf("No such container: %s", name) + } + return nil +} + +func (srv *Server) ContainerInspect(name string) (*Container, error) { + if container := srv.runtime.Get(name); container != nil { + return container, nil + } + return nil, fmt.Errorf("No such container: %s", name) +} + +func (srv *Server) ImageInspect(name string) (*Image, error) { + if image, err := srv.runtime.repositories.LookupImage(name); err == nil && image != nil { + return image, nil + } + return nil, fmt.Errorf("No such image: %s", name) +} + +func NewServer(autoRestart bool) (*Server, error) { + if runtime.GOARCH != "amd64" { + log.Fatalf("The docker runtime currently only supports amd64 (not %s). This will change in the future. Aborting.", runtime.GOARCH) + } + runtime, err := NewRuntime(autoRestart) + if err != nil { + return nil, err + } + srv := &Server{ + runtime: runtime, + } + return srv, nil +} + +type Server struct { + runtime *Runtime +}