| package docker |
| |
| import ( |
| "bufio" |
| "encoding/json" |
| "errors" |
| "fmt" |
| "github.com/dotcloud/docker/auth" |
| "github.com/dotcloud/docker/gograph" |
| "github.com/dotcloud/docker/registry" |
| "github.com/dotcloud/docker/utils" |
| "io" |
| "io/ioutil" |
| "log" |
| "net/http" |
| "net/url" |
| "os" |
| "os/exec" |
| "path" |
| "path/filepath" |
| "runtime" |
| "strings" |
| "sync" |
| "time" |
| ) |
| |
| func (srv *Server) DockerVersion() APIVersion { |
| return APIVersion{ |
| Version: VERSION, |
| GitCommit: GITCOMMIT, |
| GoVersion: runtime.Version(), |
| } |
| } |
| |
| // simpleVersionInfo is a simple implementation of |
| // the interface VersionInfo, which is used |
| // to provide version information for some product, |
| // component, etc. It stores the product name and the version |
| // in string and returns them on calls to Name() and Version(). |
| type simpleVersionInfo struct { |
| name string |
| version string |
| } |
| |
| func (v *simpleVersionInfo) Name() string { |
| return v.name |
| } |
| |
| func (v *simpleVersionInfo) Version() string { |
| return v.version |
| } |
| |
| // versionCheckers() returns version informations of: |
| // docker, go, git-commit (of the docker) and the host's kernel. |
| // |
| // Such information will be used on call to NewRegistry(). |
| func (srv *Server) versionInfos() []utils.VersionInfo { |
| v := srv.DockerVersion() |
| ret := make([]utils.VersionInfo, 0, 4) |
| ret = append(ret, &simpleVersionInfo{"docker", v.Version}) |
| |
| if len(v.GoVersion) > 0 { |
| ret = append(ret, &simpleVersionInfo{"go", v.GoVersion}) |
| } |
| if len(v.GitCommit) > 0 { |
| ret = append(ret, &simpleVersionInfo{"git-commit", v.GitCommit}) |
| } |
| kernelVersion, err := utils.GetKernelVersion() |
| if err == nil { |
| ret = append(ret, &simpleVersionInfo{"kernel", kernelVersion.String()}) |
| } |
| |
| return ret |
| } |
| |
| 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 killing container %s: %s", name, err) |
| } |
| srv.LogEvent("kill", container.ShortID(), srv.runtime.repositories.ImageName(container.Image)) |
| } else { |
| return fmt.Errorf("No such container: %s", name) |
| } |
| return nil |
| } |
| |
| func (srv *Server) ContainerExport(name string, out io.Writer) 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(out, data); err != nil { |
| return err |
| } |
| srv.LogEvent("export", container.ShortID(), srv.runtime.repositories.ImageName(container.Image)) |
| return nil |
| } |
| return fmt.Errorf("No such container: %s", name) |
| } |
| |
| func (srv *Server) ImagesSearch(term string) ([]APISearch, error) { |
| r, err := registry.NewRegistry(srv.runtime.config.GraphPath, nil, srv.HTTPRequestFactory(nil)) |
| if err != nil { |
| return nil, err |
| } |
| results, err := r.SearchRepositories(term) |
| if err != nil { |
| return nil, err |
| } |
| |
| var outs []APISearch |
| for _, repo := range results.Results { |
| var out APISearch |
| out.Description = repo["description"] |
| out.Name = repo["name"] |
| outs = append(outs, out) |
| } |
| return outs, nil |
| } |
| |
| func (srv *Server) ImageInsert(name, url, path string, out io.Writer, sf *utils.StreamFormatter) (string, error) { |
| out = utils.NewWriteFlusher(out) |
| img, err := srv.runtime.repositories.LookupImage(name) |
| if err != nil { |
| return "", err |
| } |
| |
| file, err := utils.Download(url, out) |
| if err != nil { |
| return "", err |
| } |
| defer file.Body.Close() |
| |
| config, _, _, err := ParseRun([]string{img.ID, "echo", "insert", url, path}, srv.runtime.capabilities) |
| if err != nil { |
| return "", err |
| } |
| |
| c, _, err := srv.runtime.Create(config) |
| if err != nil { |
| return "", err |
| } |
| |
| if err := c.Inject(utils.ProgressReader(file.Body, int(file.ContentLength), out, sf.FormatProgress("", "Downloading", "%8v/%v (%v)"), sf, true), path); err != nil { |
| return "", err |
| } |
| // FIXME: Handle custom repo, tag comment, author |
| img, err = srv.runtime.Commit(c, "", "", img.Comment, img.Author, nil) |
| if err != nil { |
| return "", err |
| } |
| out.Write(sf.FormatStatus("", img.ID)) |
| return img.ShortID(), nil |
| } |
| |
| func (srv *Server) ImagesViz(out io.Writer) error { |
| images, _ := srv.runtime.graph.Map() |
| if images == nil { |
| return nil |
| } |
| out.Write([]byte("digraph docker {\n")) |
| |
| var ( |
| parentImage *Image |
| err error |
| ) |
| for _, image := range images { |
| parentImage, err = image.GetParent() |
| if err != nil { |
| return fmt.Errorf("Error while getting parent image: %v", err) |
| } |
| if parentImage != nil { |
| out.Write([]byte(" \"" + parentImage.ShortID() + "\" -> \"" + image.ShortID() + "\"\n")) |
| } else { |
| out.Write([]byte(" base -> \"" + image.ShortID() + "\" [style=invis]\n")) |
| } |
| } |
| |
| reporefs := make(map[string][]string) |
| |
| for name, repository := range srv.runtime.repositories.Repositories { |
| for tag, id := range repository { |
| reporefs[utils.TruncateID(id)] = append(reporefs[utils.TruncateID(id)], fmt.Sprintf("%s:%s", name, tag)) |
| } |
| } |
| |
| for id, repos := range reporefs { |
| out.Write([]byte(" \"" + id + "\" [label=\"" + id + "\\n" + strings.Join(repos, "\\n") + "\",shape=box,fillcolor=\"paleturquoise\",style=\"filled,rounded\"];\n")) |
| } |
| out.Write([]byte(" base [style=invisible]\n}\n")) |
| return nil |
| } |
| |
| func (srv *Server) Images(all bool, filter string) ([]APIImages, error) { |
| var ( |
| allImages map[string]*Image |
| err error |
| ) |
| if all { |
| allImages, err = srv.runtime.graph.Map() |
| } else { |
| allImages, err = srv.runtime.graph.Heads() |
| } |
| if err != nil { |
| return nil, err |
| } |
| outs := []APIImages{} //produce [] when empty instead of 'null' |
| for name, repository := range srv.runtime.repositories.Repositories { |
| if filter != "" { |
| if match, _ := path.Match(filter, name); !match { |
| 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) |
| out.Repository = name |
| out.Tag = tag |
| out.ID = image.ID |
| out.Created = image.Created.Unix() |
| out.Size = image.Size |
| out.VirtualSize = image.getParentsSize(0) + image.Size |
| outs = append(outs, out) |
| } |
| } |
| // Display images which aren't part of a |
| if filter == "" { |
| for _, image := range allImages { |
| var out APIImages |
| out.ID = image.ID |
| out.Created = image.Created.Unix() |
| out.Size = image.Size |
| out.VirtualSize = image.getParentsSize(0) + image.Size |
| outs = append(outs, out) |
| } |
| } |
| |
| sortImagesByCreationAndTag(outs) |
| return outs, nil |
| } |
| |
| func (srv *Server) DockerInfo() *APIInfo { |
| images, _ := srv.runtime.graph.Map() |
| var imgcount int |
| if images == nil { |
| imgcount = 0 |
| } else { |
| imgcount = len(images) |
| } |
| lxcVersion := "" |
| if output, err := exec.Command("lxc-version").CombinedOutput(); err == nil { |
| outputStr := string(output) |
| if len(strings.SplitN(outputStr, ":", 2)) == 2 { |
| lxcVersion = strings.TrimSpace(strings.SplitN(string(output), ":", 2)[1]) |
| } |
| } |
| kernelVersion := "<unknown>" |
| if kv, err := utils.GetKernelVersion(); err == nil { |
| kernelVersion = kv.String() |
| } |
| |
| devSetInfo := srv.runtime.deviceSet.Status() |
| |
| return &APIInfo{ |
| Containers: len(srv.runtime.List()), |
| Images: imgcount, |
| MemoryLimit: srv.runtime.capabilities.MemoryLimit, |
| SwapLimit: srv.runtime.capabilities.SwapLimit, |
| IPv4Forwarding: !srv.runtime.capabilities.IPv4ForwardingDisabled, |
| Debug: os.Getenv("DEBUG") != "", |
| NFd: utils.GetTotalUsedFds(), |
| NGoroutines: runtime.NumGoroutine(), |
| LXCVersion: lxcVersion, |
| NEventsListener: len(srv.events), |
| KernelVersion: kernelVersion, |
| IndexServerAddress: auth.IndexServerAddress(), |
| DevmapperPool: devSetInfo.PoolName, |
| DevmapperDataUsed: devSetInfo.Data.Used, |
| DevmapperDataTotal: devSetInfo.Data.Total, |
| DevmapperMetadataUsed: devSetInfo.Metadata.Used, |
| DevmapperMetadataTotal: devSetInfo.Metadata.Total, |
| } |
| } |
| |
| func (srv *Server) ImageHistory(name string) ([]APIHistory, error) { |
| image, err := srv.runtime.repositories.LookupImage(name) |
| if err != nil { |
| return nil, err |
| } |
| |
| lookupMap := make(map[string][]string) |
| for name, repository := range srv.runtime.repositories.Repositories { |
| for tag, id := range repository { |
| // If the ID already has a reverse lookup, do not update it unless for "latest" |
| if _, exists := lookupMap[id]; !exists { |
| lookupMap[id] = []string{} |
| } |
| lookupMap[id] = append(lookupMap[id], name+":"+tag) |
| } |
| } |
| |
| outs := []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, " ") |
| out.Tags = lookupMap[img.ID] |
| outs = append(outs, out) |
| return nil |
| }) |
| return outs, nil |
| |
| } |
| |
| func (srv *Server) ContainerTop(name, ps_args string) (*APITop, error) { |
| if container := srv.runtime.Get(name); container != nil { |
| output, err := exec.Command("lxc-ps", "--name", container.ID, "--", ps_args).CombinedOutput() |
| if err != nil { |
| return nil, fmt.Errorf("Error trying to use lxc-ps: %s (%s)", err, output) |
| } |
| procs := APITop{} |
| for i, line := range strings.Split(string(output), "\n") { |
| if len(line) == 0 { |
| continue |
| } |
| words := []string{} |
| scanner := bufio.NewScanner(strings.NewReader(line)) |
| scanner.Split(bufio.ScanWords) |
| if !scanner.Scan() { |
| return nil, fmt.Errorf("Error trying to use lxc-ps") |
| } |
| // no scanner.Text because we skip container id |
| for scanner.Scan() { |
| words = append(words, scanner.Text()) |
| } |
| if i == 0 { |
| procs.Titles = words |
| } else { |
| procs.Processes = append(procs.Processes, words) |
| } |
| } |
| return &procs, nil |
| |
| } |
| return nil, fmt.Errorf("No such container: %s", name) |
| } |
| |
| func (srv *Server) ContainerChanges(name string) ([]Change, error) { |
| if container := srv.runtime.Get(name); container != nil { |
| return container.Changes() |
| } |
| return nil, fmt.Errorf("No such container: %s", name) |
| } |
| |
| func (srv *Server) Containers(all, size bool, n int, since, before string) []APIContainers { |
| var foundBefore bool |
| var displayed int |
| out := []APIContainers{} |
| |
| for _, container := range srv.runtime.List() { |
| if !container.State.Running && !all && n == -1 && since == "" && before == "" { |
| continue |
| } |
| if before != "" { |
| if container.ShortID() == before { |
| foundBefore = true |
| continue |
| } |
| if !foundBefore { |
| continue |
| } |
| } |
| if displayed == n { |
| break |
| } |
| if container.ShortID() == since { |
| break |
| } |
| displayed++ |
| c := createAPIContainer(container, size, srv.runtime) |
| out = append(out, c) |
| } |
| return out |
| } |
| |
| func createAPIContainer(container *Container, size bool, runtime *Runtime) APIContainers { |
| c := APIContainers{ |
| ID: container.ID, |
| } |
| names := []string{} |
| runtime.containerGraph.Walk("/", func(p string, e *gograph.Entity) error { |
| if e.ID() == container.ID { |
| names = append(names, p) |
| } |
| return nil |
| }, -1) |
| c.Names = names |
| |
| c.Image = runtime.repositories.ImageName(container.Image) |
| c.Command = fmt.Sprintf("%s %s", container.Path, strings.Join(container.Args, " ")) |
| c.Created = container.Created.Unix() |
| c.Status = container.State.String() |
| c.Ports = container.NetworkSettings.PortMappingAPI() |
| if size { |
| c.SizeRw, c.SizeRootFs = container.GetSize() |
| } |
| return c |
| } |
| func (srv *Server) ContainerCommit(name, repo, tag, author, comment string, config *Config) (string, error) { |
| container := srv.runtime.Get(name) |
| if container == nil { |
| return "", fmt.Errorf("No such container: %s", name) |
| } |
| img, err := srv.runtime.Commit(container, 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) pullImage(r *registry.Registry, out io.Writer, imgID, endpoint string, token []string, sf *utils.StreamFormatter) error { |
| history, err := r.GetRemoteHistory(imgID, endpoint, token) |
| if err != nil { |
| return err |
| } |
| out.Write(sf.FormatProgress(utils.TruncateID(imgID), "Pulling", "dependend layers")) |
| // FIXME: Try to stream the images? |
| // FIXME: Launch the getRemoteImage() in goroutines |
| |
| for _, id := range history { |
| |
| // ensure no two downloads of the same layer happen at the same time |
| if err := srv.poolAdd("pull", "layer:"+id); err != nil { |
| utils.Errorf("Image (id: %s) pull is already running, skipping: %v", id, err) |
| return nil |
| } |
| defer srv.poolRemove("pull", "layer:"+id) |
| |
| if !srv.runtime.graph.Exists(id) { |
| out.Write(sf.FormatProgress(utils.TruncateID(id), "Pulling", "metadata")) |
| imgJSON, imgSize, err := r.GetRemoteImageJSON(id, endpoint, token) |
| if err != nil { |
| out.Write(sf.FormatProgress(utils.TruncateID(id), "Error", "pulling dependend layers")) |
| // FIXME: Keep going in case of error? |
| return err |
| } |
| img, err := NewImgJSON(imgJSON) |
| if err != nil { |
| out.Write(sf.FormatProgress(utils.TruncateID(id), "Error", "pulling dependend layers")) |
| return fmt.Errorf("Failed to parse json: %s", err) |
| } |
| |
| // Get the layer |
| out.Write(sf.FormatProgress(utils.TruncateID(id), "Pulling", "fs layer")) |
| layer, err := r.GetRemoteImageLayer(img.ID, endpoint, token) |
| if err != nil { |
| out.Write(sf.FormatProgress(utils.TruncateID(id), "Error", "pulling dependend layers")) |
| return err |
| } |
| defer layer.Close() |
| if err := srv.runtime.graph.Register(imgJSON, utils.ProgressReader(layer, imgSize, out, sf.FormatProgress(utils.TruncateID(id), "Downloading", "%8v/%v (%v)"), sf, false), img); err != nil { |
| out.Write(sf.FormatProgress(utils.TruncateID(id), "Error", "downloading dependend layers")) |
| return err |
| } |
| } |
| out.Write(sf.FormatProgress(utils.TruncateID(id), "Download", "complete")) |
| |
| } |
| return nil |
| } |
| |
| func (srv *Server) pullRepository(r *registry.Registry, out io.Writer, localName, remoteName, askedTag, indexEp string, sf *utils.StreamFormatter, parallel bool) error { |
| out.Write(sf.FormatStatus("", "Pulling repository %s", localName)) |
| |
| repoData, err := r.GetRepositoryData(indexEp, remoteName) |
| if err != nil { |
| return err |
| } |
| |
| utils.Debugf("Retrieving the tag list") |
| tagsList, err := r.GetRemoteTags(repoData.Endpoints, remoteName, repoData.Tokens) |
| if err != nil { |
| utils.Errorf("%v", err) |
| return err |
| } |
| |
| for tag, id := range tagsList { |
| repoData.ImgList[id] = ®istry.ImgData{ |
| ID: id, |
| Tag: tag, |
| Checksum: "", |
| } |
| } |
| |
| utils.Debugf("Registering tags") |
| // If no tag has been specified, pull them all |
| if askedTag == "" { |
| for tag, id := range tagsList { |
| repoData.ImgList[id].Tag = tag |
| } |
| } else { |
| // Otherwise, check that the tag exists and use only that one |
| id, exists := tagsList[askedTag] |
| if !exists { |
| return fmt.Errorf("Tag %s not found in repository %s", askedTag, localName) |
| } |
| repoData.ImgList[id].Tag = askedTag |
| } |
| |
| errors := make(chan error) |
| for _, image := range repoData.ImgList { |
| downloadImage := func(img *registry.ImgData) { |
| if askedTag != "" && img.Tag != askedTag { |
| utils.Debugf("(%s) does not match %s (id: %s), skipping", img.Tag, askedTag, img.ID) |
| if parallel { |
| errors <- nil |
| } |
| return |
| } |
| |
| if img.Tag == "" { |
| utils.Debugf("Image (id: %s) present in this repository but untagged, skipping", img.ID) |
| if parallel { |
| errors <- nil |
| } |
| return |
| } |
| |
| // ensure no two downloads of the same image happen at the same time |
| if err := srv.poolAdd("pull", "img:"+img.ID); err != nil { |
| utils.Errorf("Image (id: %s) pull is already running, skipping: %v", img.ID, err) |
| if parallel { |
| errors <- nil |
| } |
| return |
| } |
| defer srv.poolRemove("pull", "img:"+img.ID) |
| |
| out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Pulling", fmt.Sprintf("image (%s) from %s", img.Tag, localName))) |
| success := false |
| var lastErr error |
| for _, ep := range repoData.Endpoints { |
| out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Pulling", fmt.Sprintf("image (%s) from %s, endpoint: %s", img.Tag, localName, ep))) |
| if err := srv.pullImage(r, out, img.ID, ep, repoData.Tokens, sf); err != nil { |
| // Its not ideal that only the last error is returned, it would be better to concatenate the errors. |
| // As the error is also given to the output stream the user will see the error. |
| lastErr = err |
| out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Error pulling", fmt.Sprintf("image (%s) from %s, endpoint: %s, %s", img.Tag, localName, ep, err))) |
| continue |
| } |
| success = true |
| break |
| } |
| if !success { |
| out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Error pulling", fmt.Sprintf("image (%s) from %s, %s", img.Tag, localName, lastErr))) |
| if parallel { |
| errors <- fmt.Errorf("Could not find repository on any of the indexed registries.") |
| return |
| } |
| } |
| out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Download", "complete")) |
| |
| if parallel { |
| errors <- nil |
| } |
| } |
| |
| if parallel { |
| go downloadImage(image) |
| } else { |
| downloadImage(image) |
| } |
| } |
| if parallel { |
| var lastError error |
| for i := 0; i < len(repoData.ImgList); i++ { |
| if err := <-errors; err != nil { |
| lastError = err |
| } |
| } |
| if lastError != nil { |
| return lastError |
| } |
| |
| } |
| for tag, id := range tagsList { |
| if askedTag != "" && tag != askedTag { |
| continue |
| } |
| if err := srv.runtime.repositories.Set(localName, tag, id, true); err != nil { |
| return err |
| } |
| } |
| if err := srv.runtime.repositories.Save(); err != nil { |
| return err |
| } |
| |
| return nil |
| } |
| |
| func (srv *Server) poolAdd(kind, key string) error { |
| srv.Lock() |
| defer srv.Unlock() |
| |
| if _, exists := srv.pullingPool[key]; exists { |
| return fmt.Errorf("pull %s is already in progress", key) |
| } |
| if _, exists := srv.pushingPool[key]; exists { |
| return fmt.Errorf("push %s is already in progress", key) |
| } |
| |
| switch kind { |
| case "pull": |
| srv.pullingPool[key] = struct{}{} |
| break |
| case "push": |
| srv.pushingPool[key] = struct{}{} |
| break |
| default: |
| return fmt.Errorf("Unknown pool type") |
| } |
| return nil |
| } |
| |
| func (srv *Server) poolRemove(kind, key string) error { |
| switch kind { |
| case "pull": |
| delete(srv.pullingPool, key) |
| break |
| case "push": |
| delete(srv.pushingPool, key) |
| break |
| default: |
| return fmt.Errorf("Unknown pool type") |
| } |
| return nil |
| } |
| |
| func (srv *Server) ImagePull(localName string, tag string, out io.Writer, sf *utils.StreamFormatter, authConfig *auth.AuthConfig, metaHeaders map[string][]string, parallel bool) error { |
| r, err := registry.NewRegistry(srv.runtime.config.GraphPath, authConfig, srv.HTTPRequestFactory(metaHeaders)) |
| if err != nil { |
| return err |
| } |
| if err := srv.poolAdd("pull", localName+":"+tag); err != nil { |
| return err |
| } |
| defer srv.poolRemove("pull", localName+":"+tag) |
| |
| // Resolve the Repository name from fqn to endpoint + name |
| endpoint, remoteName, err := registry.ResolveRepositoryName(localName) |
| if err != nil { |
| return err |
| } |
| |
| if endpoint == auth.IndexServerAddress() { |
| // If pull "index.docker.io/foo/bar", it's stored locally under "foo/bar" |
| localName = remoteName |
| } |
| |
| out = utils.NewWriteFlusher(out) |
| err = srv.pullRepository(r, out, localName, remoteName, tag, endpoint, sf, parallel) |
| if err == registry.ErrLoginRequired { |
| return err |
| } |
| if err != nil { |
| if err := srv.pullImage(r, out, remoteName, endpoint, nil, sf); err != nil { |
| return err |
| } |
| return nil |
| } |
| |
| return nil |
| } |
| |
| // Retrieve the all the images to be uploaded in the correct order |
| // Note: we can't use a map as it is not ordered |
| func (srv *Server) getImageList(localRepo map[string]string) ([][]*registry.ImgData, error) { |
| imgList := map[string]*registry.ImgData{} |
| depGraph := utils.NewDependencyGraph() |
| |
| for tag, id := range localRepo { |
| img, err := srv.runtime.graph.Get(id) |
| if err != nil { |
| return nil, err |
| } |
| depGraph.NewNode(img.ID) |
| img.WalkHistory(func(current *Image) error { |
| imgList[current.ID] = ®istry.ImgData{ |
| ID: current.ID, |
| Tag: tag, |
| } |
| parent, err := current.GetParent() |
| if err != nil { |
| return err |
| } |
| if parent == nil { |
| return nil |
| } |
| depGraph.NewNode(parent.ID) |
| depGraph.AddDependency(current.ID, parent.ID) |
| return nil |
| }) |
| } |
| |
| traversalMap, err := depGraph.GenerateTraversalMap() |
| if err != nil { |
| return nil, err |
| } |
| |
| utils.Debugf("Traversal map: %v", traversalMap) |
| result := [][]*registry.ImgData{} |
| for _, round := range traversalMap { |
| dataRound := []*registry.ImgData{} |
| for _, imgID := range round { |
| dataRound = append(dataRound, imgList[imgID]) |
| } |
| result = append(result, dataRound) |
| } |
| return result, nil |
| } |
| |
| func flatten(slc [][]*registry.ImgData) []*registry.ImgData { |
| result := []*registry.ImgData{} |
| for _, x := range slc { |
| result = append(result, x...) |
| } |
| return result |
| } |
| |
| func (srv *Server) pushRepository(r *registry.Registry, out io.Writer, localName, remoteName string, localRepo map[string]string, indexEp string, sf *utils.StreamFormatter) error { |
| out = utils.NewWriteFlusher(out) |
| imgList, err := srv.getImageList(localRepo) |
| if err != nil { |
| return err |
| } |
| flattenedImgList := flatten(imgList) |
| out.Write(sf.FormatStatus("", "Sending image list")) |
| |
| var repoData *registry.RepositoryData |
| repoData, err = r.PushImageJSONIndex(indexEp, remoteName, flattenedImgList, false, nil) |
| if err != nil { |
| return err |
| } |
| |
| for _, ep := range repoData.Endpoints { |
| out.Write(sf.FormatStatus("", "Pushing repository %s (%d tags)", localName, len(localRepo))) |
| // This section can not be parallelized (each round depends on the previous one) |
| for _, round := range imgList { |
| // FIXME: This section can be parallelized |
| for _, elem := range round { |
| var pushTags func() error |
| pushTags = func() error { |
| out.Write(sf.FormatStatus("", "Pushing tags for rev [%s] on {%s}", elem.ID, ep+"repositories/"+remoteName+"/tags/"+elem.Tag)) |
| if err := r.PushRegistryTag(remoteName, elem.ID, elem.Tag, ep, repoData.Tokens); err != nil { |
| return err |
| } |
| return nil |
| } |
| if _, exists := repoData.ImgList[elem.ID]; exists { |
| if err := pushTags(); err != nil { |
| return err |
| } |
| out.Write(sf.FormatStatus("", "Image %s already pushed, skipping", elem.ID)) |
| continue |
| } else if r.LookupRemoteImage(elem.ID, ep, repoData.Tokens) { |
| if err := pushTags(); err != nil { |
| return err |
| } |
| out.Write(sf.FormatStatus("", "Image %s already pushed, skipping", elem.ID)) |
| continue |
| } |
| if checksum, err := srv.pushImage(r, out, remoteName, elem.ID, ep, repoData.Tokens, sf); err != nil { |
| // FIXME: Continue on error? |
| return err |
| } else { |
| elem.Checksum = checksum |
| } |
| if err := pushTags(); err != nil { |
| return err |
| } |
| } |
| } |
| } |
| |
| if _, err := r.PushImageJSONIndex(indexEp, remoteName, flattenedImgList, true, repoData.Endpoints); err != nil { |
| return err |
| } |
| |
| return nil |
| } |
| |
| func (srv *Server) pushImage(r *registry.Registry, out io.Writer, remote, imgID, ep string, token []string, sf *utils.StreamFormatter) (checksum string, err error) { |
| out = utils.NewWriteFlusher(out) |
| jsonRaw, err := ioutil.ReadFile(path.Join(srv.runtime.graph.Root, imgID, "json")) |
| if err != nil { |
| return "", fmt.Errorf("Error while retrieving the path for {%s}: %s", imgID, err) |
| } |
| out.Write(sf.FormatStatus("", "Pushing %s", imgID)) |
| |
| imgData := ®istry.ImgData{ |
| ID: imgID, |
| } |
| |
| // Send the json |
| if err := r.PushImageJSONRegistry(imgData, jsonRaw, ep, token); err != nil { |
| if err == registry.ErrAlreadyExists { |
| out.Write(sf.FormatStatus("", "Image %s already pushed, skipping", imgData.ID)) |
| return "", nil |
| } |
| return "", err |
| } |
| |
| layerData, err := srv.runtime.graph.TempLayerArchive(imgID, Uncompressed, sf, out) |
| if err != nil { |
| return "", fmt.Errorf("Failed to generate layer archive: %s", err) |
| } |
| |
| // Send the layer |
| if checksum, err := r.PushImageLayerRegistry(imgData.ID, utils.ProgressReader(layerData, int(layerData.Size), out, sf.FormatProgress("", "Pushing", "%8v/%v (%v)"), sf, false), ep, token, jsonRaw); err != nil { |
| return "", err |
| } else { |
| imgData.Checksum = checksum |
| } |
| out.Write(sf.FormatStatus("", "")) |
| |
| // Send the checksum |
| if err := r.PushImageChecksumRegistry(imgData, ep, token); err != nil { |
| return "", err |
| } |
| |
| return imgData.Checksum, nil |
| } |
| |
| // FIXME: Allow to interrupt current push when new push of same image is done. |
| func (srv *Server) ImagePush(localName string, out io.Writer, sf *utils.StreamFormatter, authConfig *auth.AuthConfig, metaHeaders map[string][]string) error { |
| if err := srv.poolAdd("push", localName); err != nil { |
| return err |
| } |
| defer srv.poolRemove("push", localName) |
| |
| // Resolve the Repository name from fqn to endpoint + name |
| endpoint, remoteName, err := registry.ResolveRepositoryName(localName) |
| if err != nil { |
| return err |
| } |
| |
| out = utils.NewWriteFlusher(out) |
| img, err := srv.runtime.graph.Get(localName) |
| r, err2 := registry.NewRegistry(srv.runtime.config.GraphPath, authConfig, srv.HTTPRequestFactory(metaHeaders)) |
| if err2 != nil { |
| return err2 |
| } |
| |
| if err != nil { |
| reposLen := len(srv.runtime.repositories.Repositories[localName]) |
| out.Write(sf.FormatStatus("", "The push refers to a repository [%s] (len: %d)", localName, reposLen)) |
| // If it fails, try to get the repository |
| if localRepo, exists := srv.runtime.repositories.Repositories[localName]; exists { |
| if err := srv.pushRepository(r, out, localName, remoteName, localRepo, endpoint, sf); err != nil { |
| return err |
| } |
| return nil |
| } |
| return err |
| } |
| |
| var token []string |
| out.Write(sf.FormatStatus("", "The push refers to an image: [%s]", localName)) |
| if _, err := srv.pushImage(r, out, remoteName, img.ID, endpoint, token, sf); err != nil { |
| return err |
| } |
| return nil |
| } |
| |
| func (srv *Server) ImageImport(src, repo, tag string, in io.Reader, out io.Writer, sf *utils.StreamFormatter) error { |
| var archive io.Reader |
| var resp *http.Response |
| |
| if src == "-" { |
| archive = in |
| } else { |
| u, err := url.Parse(src) |
| if err != nil { |
| return err |
| } |
| if u.Scheme == "" { |
| u.Scheme = "http" |
| u.Host = src |
| u.Path = "" |
| } |
| out.Write(sf.FormatStatus("", "Downloading from %s", u)) |
| // Download with curl (pretty progress bar) |
| // If curl is not available, fallback to http.Get() |
| resp, err = utils.Download(u.String(), out) |
| if err != nil { |
| return err |
| } |
| archive = utils.ProgressReader(resp.Body, int(resp.ContentLength), out, sf.FormatProgress("", "Importing", "%8v/%v (%v)"), sf, true) |
| } |
| 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 |
| } |
| } |
| out.Write(sf.FormatStatus("", img.ShortID())) |
| return nil |
| } |
| |
| func (srv *Server) ContainerCreate(config *Config) (string, []string, error) { |
| if config.Memory != 0 && config.Memory < 524288 { |
| return "", nil, fmt.Errorf("Memory limit must be given in bytes (minimum 524288 bytes)") |
| } |
| |
| if config.Memory > 0 && !srv.runtime.capabilities.MemoryLimit { |
| config.Memory = 0 |
| } |
| |
| if config.Memory > 0 && !srv.runtime.capabilities.SwapLimit { |
| config.MemorySwap = -1 |
| } |
| container, buildWarnings, err := srv.runtime.Create(config) |
| if err != nil { |
| if srv.runtime.graph.IsNotExist(err) { |
| |
| _, tag := utils.ParseRepositoryTag(config.Image) |
| if tag == "" { |
| tag = DEFAULTTAG |
| } |
| |
| return "", nil, fmt.Errorf("No such image: %s (tag: %s)", config.Image, tag) |
| } |
| return "", nil, err |
| } |
| srv.LogEvent("create", container.ShortID(), srv.runtime.repositories.ImageName(container.Image)) |
| return container.ShortID(), buildWarnings, 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) |
| } |
| srv.LogEvent("restart", container.ShortID(), srv.runtime.repositories.ImageName(container.Image)) |
| } else { |
| return fmt.Errorf("No such container: %s", name) |
| } |
| return nil |
| } |
| |
| func (srv *Server) ContainerDestroy(name string, removeVolume, removeLink bool) error { |
| if removeLink { |
| p := name |
| if p[0] != '/' { |
| p = "/" + p |
| } |
| parent, n := path.Split(p) |
| l := len(parent) |
| if parent[l-1] == '/' { |
| parent = parent[:l-1] |
| } |
| |
| pe := srv.runtime.containerGraph.Get(parent) |
| parentContainer := srv.runtime.Get(pe.ID()) |
| |
| if parentContainer != nil && parentContainer.activeLinks != nil { |
| if link, exists := parentContainer.activeLinks[n]; exists { |
| link.Disable() |
| } else { |
| utils.Debugf("Could not find active link for %s", name) |
| } |
| } |
| |
| if err := srv.runtime.containerGraph.Delete(name); err != nil { |
| return err |
| } |
| return nil |
| } |
| if container := srv.runtime.Get(name); container != nil { |
| if container.State.Running { |
| return fmt.Errorf("Impossible to remove a running container, please stop it first") |
| } |
| volumes := make(map[string]struct{}) |
| // Store all the deleted containers volumes |
| for _, volumeId := range container.Volumes { |
| volumeId = strings.TrimRight(volumeId, "/layer") |
| volumeId = filepath.Base(volumeId) |
| volumes[volumeId] = struct{}{} |
| } |
| if err := srv.runtime.Destroy(container); err != nil { |
| return fmt.Errorf("Error destroying container %s: %s", name, err) |
| } |
| srv.LogEvent("destroy", container.ShortID(), srv.runtime.repositories.ImageName(container.Image)) |
| |
| if removeVolume { |
| // Retrieve all volumes from all remaining containers |
| usedVolumes := make(map[string]*Container) |
| for _, container := range srv.runtime.List() { |
| for _, containerVolumeId := range container.Volumes { |
| usedVolumes[containerVolumeId] = container |
| } |
| } |
| |
| for volumeId := range volumes { |
| // If the requested volu |
| if c, exists := usedVolumes[volumeId]; exists { |
| log.Printf("The volume %s is used by the container %s. Impossible to remove it. Skipping.\n", volumeId, c.ID) |
| continue |
| } |
| if err := srv.runtime.volumes.Delete(volumeId); err != nil { |
| return err |
| } |
| } |
| } |
| } else { |
| return fmt.Errorf("No such container: %s", name) |
| } |
| return nil |
| } |
| |
| var ErrImageReferenced = errors.New("Image referenced by a repository") |
| |
| func (srv *Server) getChildImages(id string) ([]*Image, error) { |
| byParents, err := srv.runtime.graph.ByParent() |
| if err != nil { |
| return nil, err |
| } |
| return byParents[id], nil |
| } |
| |
| func (srv *Server) deleteImageAndChildren(id string, imgs *[]APIRmi) error { |
| // If the image is referenced by a repo, do not delete |
| if len(srv.runtime.repositories.ByID()[id]) != 0 { |
| return ErrImageReferenced |
| } |
| // If the image is not referenced but has children, go recursive |
| referenced := false |
| byParents, err := srv.runtime.graph.ByParent() |
| if err != nil { |
| return err |
| } |
| for _, img := range byParents[id] { |
| if err := srv.deleteImageAndChildren(img.ID, imgs); err != nil { |
| if err != ErrImageReferenced { |
| return err |
| } |
| referenced = true |
| } |
| } |
| if referenced { |
| return ErrImageReferenced |
| } |
| |
| // If the image is not referenced and has no children, remove it |
| byParents, err = srv.runtime.graph.ByParent() |
| if err != nil { |
| return err |
| } |
| if len(byParents[id]) == 0 { |
| if err := srv.runtime.repositories.DeleteAll(id); err != nil { |
| return err |
| } |
| err := srv.runtime.DeleteImage(id) |
| if err != nil { |
| return err |
| } |
| *imgs = append(*imgs, APIRmi{Deleted: utils.TruncateID(id)}) |
| srv.LogEvent("delete", utils.TruncateID(id), "") |
| return nil |
| } |
| return nil |
| } |
| |
| func (srv *Server) deleteImageParents(img *Image, imgs *[]APIRmi) error { |
| if img.Parent != "" { |
| parent, err := srv.runtime.graph.Get(img.Parent) |
| if err != nil { |
| return err |
| } |
| // Remove all children images |
| if err := srv.deleteImageAndChildren(img.Parent, imgs); err != nil { |
| return err |
| } |
| return srv.deleteImageParents(parent, imgs) |
| } |
| return nil |
| } |
| |
| func (srv *Server) deleteImage(img *Image, repoName, tag string) ([]APIRmi, error) { |
| imgs := []APIRmi{} |
| |
| //If delete by id, see if the id belong only to one repository |
| if strings.Contains(img.ID, repoName) && tag == "" { |
| for _, repoAndTag := range srv.runtime.repositories.ByID()[img.ID] { |
| parsedRepo, parsedTag := utils.ParseRepositoryTag(repoAndTag) |
| if strings.Contains(img.ID, repoName) { |
| repoName = parsedRepo |
| if len(srv.runtime.repositories.ByID()[img.ID]) == 1 && len(parsedTag) > 1 { |
| tag = parsedTag |
| } |
| } else if repoName != parsedRepo { |
| // the id belongs to multiple repos, like base:latest and user:test, |
| // in that case return conflict |
| return imgs, nil |
| } |
| } |
| } |
| //Untag the current image |
| tagDeleted, err := srv.runtime.repositories.Delete(repoName, tag) |
| if err != nil { |
| return nil, err |
| } |
| if tagDeleted { |
| imgs = append(imgs, APIRmi{Untagged: img.ShortID()}) |
| srv.LogEvent("untag", img.ShortID(), "") |
| } |
| if len(srv.runtime.repositories.ByID()[img.ID]) == 0 { |
| if err := srv.deleteImageAndChildren(img.ID, &imgs); err != nil { |
| if err != ErrImageReferenced { |
| return imgs, err |
| } |
| } else if err := srv.deleteImageParents(img, &imgs); err != nil { |
| if err != ErrImageReferenced { |
| return imgs, err |
| } |
| } |
| } |
| return imgs, nil |
| } |
| |
| func (srv *Server) ImageDelete(name string, autoPrune bool) ([]APIRmi, error) { |
| img, err := srv.runtime.repositories.LookupImage(name) |
| if err != nil { |
| return nil, fmt.Errorf("No such image: %s", name) |
| } |
| images := make(map[string]bool) |
| images[img.ID] = true |
| |
| children, err := srv.getChildImages(img.ID) |
| if err != nil { |
| return nil, err |
| } |
| |
| for _, i := range children { |
| images[i.ID] = true |
| } |
| |
| // Check for any containers referencing the image or children of the image |
| referencedContainers := []string{} |
| |
| for e := srv.runtime.containers.Front(); e != nil; e = e.Next() { |
| c := e.Value.(*Container) |
| if images[c.Image] { |
| referencedContainers = append(referencedContainers, c.ID) |
| } |
| } |
| |
| if len(referencedContainers) > 0 { |
| return nil, fmt.Errorf("Cannot delete image with existing containers. Please remove %s before deleting image.", |
| strings.Join(referencedContainers, ", ")) |
| } |
| |
| if !autoPrune { |
| if err := srv.runtime.DeleteImage(img.ID); err != nil { |
| return nil, fmt.Errorf("Error deleting image %s: %s", name, err) |
| } |
| return nil, nil |
| } |
| |
| name, tag := utils.ParseRepositoryTag(name) |
| return srv.deleteImage(img, name, tag) |
| } |
| |
| func (srv *Server) ImageGetCached(imgID string, config *Config) (*Image, error) { |
| |
| // Retrieve all images |
| images, err := srv.runtime.graph.Map() |
| if err != nil { |
| return nil, err |
| } |
| |
| // Store the tree in a map of map (map[parentId][childId]) |
| imageMap := make(map[string]map[string]struct{}) |
| for _, img := range images { |
| if _, exists := imageMap[img.Parent]; !exists { |
| imageMap[img.Parent] = make(map[string]struct{}) |
| } |
| imageMap[img.Parent][img.ID] = struct{}{} |
| } |
| |
| // Loop on the children of the given image and check the config |
| for elem := range imageMap[imgID] { |
| img, err := srv.runtime.graph.Get(elem) |
| if err != nil { |
| return nil, err |
| } |
| if CompareConfig(&img.ContainerConfig, config) { |
| return img, nil |
| } |
| } |
| return nil, nil |
| } |
| |
| func (srv *Server) ContainerStart(name string, hostConfig *HostConfig) error { |
| runtime := srv.runtime |
| container := runtime.Get(name) |
| if container == nil { |
| return fmt.Errorf("No such container: %s", name) |
| } |
| |
| // Register links |
| if hostConfig != nil && hostConfig.Links != nil { |
| for _, l := range hostConfig.Links { |
| parts, err := parseLink(l) |
| if err != nil { |
| return err |
| } |
| |
| childName := parts["name"] |
| if err := runtime.Link(fmt.Sprintf("/%s", container.ID), childName, parts["alias"]); err != nil { |
| return err |
| } |
| } |
| } |
| |
| if err := container.Start(hostConfig); err != nil { |
| return fmt.Errorf("Error starting container %s: %s", name, err) |
| } |
| srv.LogEvent("start", container.ShortID(), runtime.repositories.ImageName(container.Image)) |
| |
| 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) |
| } |
| srv.LogEvent("stop", container.ShortID(), srv.runtime.repositories.ImageName(container.Image)) |
| } 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) ContainerResize(name string, h, w int) error { |
| if container := srv.runtime.Get(name); container != nil { |
| return container.Resize(h, w) |
| } |
| return fmt.Errorf("No such container: %s", name) |
| } |
| |
| func (srv *Server) ContainerAttach(name string, logs, stream, stdin, stdout, stderr bool, inStream io.ReadCloser, outStream, errStream io.Writer) error { |
| container := srv.runtime.Get(name) |
| if container == nil { |
| return fmt.Errorf("No such container: %s", name) |
| } |
| |
| //logs |
| if logs { |
| cLog, err := container.ReadLog("json") |
| if err != nil && os.IsNotExist(err) { |
| // Legacy logs |
| utils.Errorf("Old logs format") |
| if stdout { |
| cLog, err := container.ReadLog("stdout") |
| if err != nil { |
| utils.Errorf("Error reading logs (stdout): %s", err) |
| } else if _, err := io.Copy(outStream, cLog); err != nil { |
| utils.Errorf("Error streaming logs (stdout): %s", err) |
| } |
| } |
| if stderr { |
| cLog, err := container.ReadLog("stderr") |
| if err != nil { |
| utils.Errorf("Error reading logs (stderr): %s", err) |
| } else if _, err := io.Copy(errStream, cLog); err != nil { |
| utils.Errorf("Error streaming logs (stderr): %s", err) |
| } |
| } |
| } else if err != nil { |
| utils.Errorf("Error reading logs (json): %s", err) |
| } else { |
| dec := json.NewDecoder(cLog) |
| for { |
| l := &utils.JSONLog{} |
| |
| if err := dec.Decode(l); err == io.EOF { |
| break |
| } else if err != nil { |
| utils.Errorf("Error streaming logs: %s", err) |
| break |
| } |
| if l.Stream == "stdout" && stdout { |
| fmt.Fprintf(outStream, "%s", l.Log) |
| } |
| if l.Stream == "stderr" && stderr { |
| fmt.Fprintf(errStream, "%s", l.Log) |
| } |
| } |
| } |
| } |
| |
| //stream |
| if stream { |
| if container.State.Ghost { |
| return fmt.Errorf("Impossible to attach to a ghost container") |
| } |
| |
| var ( |
| cStdin io.ReadCloser |
| cStdout, cStderr io.Writer |
| cStdinCloser io.Closer |
| ) |
| |
| if stdin { |
| r, w := io.Pipe() |
| go func() { |
| defer w.Close() |
| defer utils.Debugf("Closing buffered stdin pipe") |
| io.Copy(w, inStream) |
| }() |
| cStdin = r |
| cStdinCloser = inStream |
| } |
| if stdout { |
| cStdout = outStream |
| } |
| if stderr { |
| cStderr = errStream |
| } |
| |
| <-container.Attach(cStdin, cStdinCloser, cStdout, cStderr) |
| |
| // If we are in stdinonce mode, wait for the process to end |
| // otherwise, simply return |
| if container.Config.StdinOnce && !container.Config.Tty { |
| container.Wait() |
| } |
| } |
| 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 (srv *Server) ContainerCopy(name string, resource string, out io.Writer) error { |
| if container := srv.runtime.Get(name); container != nil { |
| |
| data, err := container.Copy(resource) |
| if err != nil { |
| return err |
| } |
| |
| if _, err := io.Copy(out, data); err != nil { |
| return err |
| } |
| return nil |
| } |
| return fmt.Errorf("No such container: %s", name) |
| |
| } |
| |
| func NewServer(config *DaemonConfig) (*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(config) |
| if err != nil { |
| return nil, err |
| } |
| runtime.srv = &Server{ |
| runtime: runtime, |
| pullingPool: make(map[string]struct{}), |
| pushingPool: make(map[string]struct{}), |
| events: make([]utils.JSONMessage, 0, 64), //only keeps the 64 last events |
| listeners: make(map[string]chan utils.JSONMessage), |
| reqFactory: nil, |
| } |
| return runtime.srv, nil |
| } |
| |
| func (srv *Server) HTTPRequestFactory(metaHeaders map[string][]string) *utils.HTTPRequestFactory { |
| if srv.reqFactory == nil { |
| srv.reqFactory = utils.NewHTTPRequestFactory( |
| utils.NewHTTPUserAgentDecorator(srv.versionInfos()...), |
| &utils.HTTPMetaHeadersDecorator{Headers: metaHeaders}) |
| } |
| return srv.reqFactory |
| } |
| |
| func (srv *Server) LogEvent(action, id, from string) { |
| now := time.Now().Unix() |
| jm := utils.JSONMessage{Status: action, ID: id, From: from, Time: now} |
| srv.events = append(srv.events, jm) |
| for _, c := range srv.listeners { |
| select { // non blocking channel |
| case c <- jm: |
| default: |
| } |
| } |
| } |
| |
| type Server struct { |
| sync.Mutex |
| runtime *Runtime |
| pullingPool map[string]struct{} |
| pushingPool map[string]struct{} |
| events []utils.JSONMessage |
| listeners map[string]chan utils.JSONMessage |
| reqFactory *utils.HTTPRequestFactory |
| } |