From 36b58e5abf2fc632a6481348ad52a9ecb055715c Mon Sep 17 00:00:00 2001 From: "Guillaume J. Charmes" Date: Wed, 15 May 2013 01:41:39 +0000 Subject: [PATCH] Split registry into subpackage --- docs/registry.go | 659 ++++++++++++++++++++++++++++++++++++++++++ docs/registry_test.go | 151 ++++++++++ 2 files changed, 810 insertions(+) create mode 100644 docs/registry.go create mode 100644 docs/registry_test.go diff --git a/docs/registry.go b/docs/registry.go new file mode 100644 index 000000000..8900f2755 --- /dev/null +++ b/docs/registry.go @@ -0,0 +1,659 @@ +package registry + +import ( + "encoding/json" + "fmt" + "github.com/dotcloud/docker/auth" + "github.com/dotcloud/docker/utils" + "github.com/shin-/cookiejar" + "io" + "io/ioutil" + "net/http" + "net/url" + "strings" +) + +func doWithCookies(c *http.Client, req *http.Request) (*http.Response, error) { + for _, cookie := range c.Jar.Cookies(req.URL) { + req.AddCookie(cookie) + } + return c.Do(req) +} + +// Retrieve the history of a given image from the Registry. +// Return a list of the parent's json (requested image included) +func (r *Registry) GetRemoteHistory(imgId, registry string, token []string) ([]string, error) { + client := r.getHttpClient() + + req, err := http.NewRequest("GET", registry+"/images/"+imgId+"/ancestry", nil) + if err != nil { + return nil, err + } + req.Header.Set("Authorization", "Token "+strings.Join(token, ", ")) + res, err := client.Do(req) + if err != nil || res.StatusCode != 200 { + if res != nil { + return nil, fmt.Errorf("Internal server error: %d trying to fetch remote history for %s", res.StatusCode, imgId) + } + return nil, err + } + defer res.Body.Close() + + jsonString, err := ioutil.ReadAll(res.Body) + if err != nil { + return nil, fmt.Errorf("Error while reading the http response: %s\n", err) + } + + utils.Debugf("Ancestry: %s", jsonString) + history := new([]string) + if err := json.Unmarshal(jsonString, history); err != nil { + return nil, err + } + return *history, nil +} + +func (r *Registry) getHttpClient() *http.Client { + if r.httpClient == nil { + r.httpClient = &http.Client{} + r.httpClient.Jar = cookiejar.NewCookieJar() + } + return r.httpClient +} + +// Check if an image exists in the Registry +func (r *Registry) LookupRemoteImage(imgId, registry string, authConfig *auth.AuthConfig) bool { + rt := &http.Transport{Proxy: http.ProxyFromEnvironment} + + req, err := http.NewRequest("GET", registry+"/images/"+imgId+"/json", nil) + if err != nil { + return false + } + req.SetBasicAuth(authConfig.Username, authConfig.Password) + res, err := rt.RoundTrip(req) + return err == nil && res.StatusCode == 307 +} + +func (r *Registry) getImagesInRepository(repository string, authConfig *auth.AuthConfig) ([]map[string]string, error) { + u := auth.IndexServerAddress() + "/repositories/" + repository + "/images" + req, err := http.NewRequest("GET", u, nil) + if err != nil { + return nil, err + } + if authConfig != nil && len(authConfig.Username) > 0 { + req.SetBasicAuth(authConfig.Username, authConfig.Password) + } + res, err := r.getHttpClient().Do(req) + if err != nil { + return nil, err + } + defer res.Body.Close() + + // Repository doesn't exist yet + if res.StatusCode == 404 { + return nil, nil + } + + jsonData, err := ioutil.ReadAll(res.Body) + if err != nil { + return nil, err + } + + imageList := []map[string]string{} + + err = json.Unmarshal(jsonData, &imageList) + if err != nil { + utils.Debugf("Body: %s (%s)\n", res.Body, u) + return nil, err + } + + return imageList, nil +} + +// Retrieve an image from the Registry. +// Returns the Image object as well as the layer as an Archive (io.Reader) +func (r *Registry) GetRemoteImageJson(stdout io.Writer, imgId, registry string, token []string) ([]byte, error) { + client := r.getHttpClient() + + fmt.Fprintf(stdout, "Pulling %s metadata\r\n", imgId) + // Get the Json + req, err := http.NewRequest("GET", registry+"/images/"+imgId+"/json", nil) + if err != nil { + return nil, fmt.Errorf("Failed to download json: %s", err) + } + req.Header.Set("Authorization", "Token "+strings.Join(token, ", ")) + res, err := client.Do(req) + if err != nil { + return nil, fmt.Errorf("Failed to download json: %s", err) + } + defer res.Body.Close() + if res.StatusCode != 200 { + return nil, fmt.Errorf("HTTP code %d", res.StatusCode) + } + jsonString, err := ioutil.ReadAll(res.Body) + if err != nil { + return nil, fmt.Errorf("Failed to parse downloaded json: %s (%s)", err, jsonString) + } + return jsonString, nil +} + +func (r *Registry) GetRemoteImageLayer(stdout io.Writer, imgId, registry string, token []string) (io.Reader, error) { + client := r.getHttpClient() + + req, err := http.NewRequest("GET", registry+"/images/"+imgId+"/layer", nil) + if err != nil { + return nil, fmt.Errorf("Error while getting from the server: %s\n", err) + } + req.Header.Set("Authorization", "Token "+strings.Join(token, ", ")) + res, err := client.Do(req) + if err != nil { + return nil, err + } + return utils.ProgressReader(res.Body, int(res.ContentLength), stdout, "Downloading %v/%v (%v)"), nil +} + +func (r *Registry) GetRemoteTags(stdout io.Writer, registries []string, repository string, token []string) (map[string]string, error) { + client := r.getHttpClient() + if strings.Count(repository, "/") == 0 { + // This will be removed once the Registry supports auto-resolution on + // the "library" namespace + repository = "library/" + repository + } + for _, host := range registries { + endpoint := fmt.Sprintf("https://%s/v1/repositories/%s/tags", host, repository) + req, err := http.NewRequest("GET", endpoint, nil) + if err != nil { + return nil, err + } + req.Header.Set("Authorization", "Token "+strings.Join(token, ", ")) + res, err := client.Do(req) + defer res.Body.Close() + utils.Debugf("Got status code %d from %s", res.StatusCode, endpoint) + if err != nil || (res.StatusCode != 200 && res.StatusCode != 404) { + continue + } else if res.StatusCode == 404 { + return nil, fmt.Errorf("Repository not found") + } + + result := make(map[string]string) + + rawJson, err := ioutil.ReadAll(res.Body) + if err != nil { + return nil, err + } + if err := json.Unmarshal(rawJson, &result); err != nil { + return nil, err + } + return result, nil + } + return nil, fmt.Errorf("Could not reach any registry endpoint") +} + +func (r *Registry) getImageForTag(stdout io.Writer, tag, remote, registry string, token []string) (string, error) { + client := r.getHttpClient() + + if !strings.Contains(remote, "/") { + remote = "library/" + remote + } + + registryEndpoint := "https://" + registry + "/v1" + repositoryTarget := registryEndpoint + "/repositories/" + remote + "/tags/" + tag + + req, err := http.NewRequest("GET", repositoryTarget, nil) + if err != nil { + return "", err + } + req.Header.Set("Authorization", "Token "+strings.Join(token, ", ")) + res, err := client.Do(req) + if err != nil { + return "", fmt.Errorf("Error while retrieving repository info: %v", err) + } + defer res.Body.Close() + if res.StatusCode == 403 { + return "", fmt.Errorf("You aren't authorized to access this resource") + } else if res.StatusCode != 200 { + return "", fmt.Errorf("HTTP code: %d", res.StatusCode) + } + + var imgId string + rawJson, err := ioutil.ReadAll(res.Body) + if err != nil { + return "", err + } + if err = json.Unmarshal(rawJson, &imgId); err != nil { + return "", err + } + return imgId, nil +} + +func (r *Registry) GetRepositoryData(remote string) (*RepositoryData, error) { + client := r.getHttpClient() + + utils.Debugf("Pulling repository %s from %s\r\n", remote, auth.IndexServerAddress()) + repositoryTarget := auth.IndexServerAddress() + "/repositories/" + remote + "/images" + + req, err := http.NewRequest("GET", repositoryTarget, nil) + if err != nil { + return nil, err + } + if r.authConfig != nil && len(r.authConfig.Username) > 0 { + req.SetBasicAuth(r.authConfig.Username, r.authConfig.Password) + } + req.Header.Set("X-Docker-Token", "true") + + res, err := client.Do(req) + if err != nil { + return nil, err + } + defer res.Body.Close() + if res.StatusCode == 401 { + return nil, fmt.Errorf("Please login first (HTTP code %d)", res.StatusCode) + } + // TODO: Right now we're ignoring checksums in the response body. + // In the future, we need to use them to check image validity. + if res.StatusCode != 200 { + return nil, fmt.Errorf("HTTP code: %d", res.StatusCode) + } + + var tokens []string + if res.Header.Get("X-Docker-Token") != "" { + tokens = res.Header["X-Docker-Token"] + } + + var endpoints []string + if res.Header.Get("X-Docker-Endpoints") != "" { + endpoints = res.Header["X-Docker-Endpoints"] + } else { + return nil, fmt.Errorf("Index response didn't contain any endpoints") + } + + checksumsJson, err := ioutil.ReadAll(res.Body) + if err != nil { + return nil, err + } + remoteChecksums := []*ImgData{} + if err := json.Unmarshal(checksumsJson, &remoteChecksums); err != nil { + return nil, err + } + + // Forge a better object from the retrieved data + imgsData := make(map[string]*ImgData) + for _, elem := range remoteChecksums { + imgsData[elem.Id] = elem + } + + return &RepositoryData{ + ImgList: imgsData, + Endpoints: endpoints, + Tokens: tokens, + }, nil +} + +// // Push a local image to the registry +// func (r *Registry) PushImage(stdout io.Writer, img *Image, registry string, token []string) error { +// registry = "https://" + registry + "/v1" + +// client := graph.getHttpClient() +// jsonRaw, err := ioutil.ReadFile(path.Join(graph.Root, img.Id, "json")) +// if err != nil { +// return fmt.Errorf("Error while retreiving the path for {%s}: %s", img.Id, err) +// } + +// fmt.Fprintf(stdout, "Pushing %s metadata\r\n", img.Id) + +// // FIXME: try json with UTF8 +// jsonData := strings.NewReader(string(jsonRaw)) +// req, err := http.NewRequest("PUT", registry+"/images/"+img.Id+"/json", jsonData) +// if err != nil { +// return err +// } +// req.Header.Add("Content-type", "application/json") +// req.Header.Set("Authorization", "Token "+strings.Join(token, ",")) + +// checksum, err := img.Checksum() +// if err != nil { +// return fmt.Errorf("Error while retrieving checksum for %s: %v", img.Id, err) +// } +// req.Header.Set("X-Docker-Checksum", checksum) +// utils.Debugf("Setting checksum for %s: %s", img.ShortId(), checksum) +// res, err := doWithCookies(client, req) +// if err != nil { +// return fmt.Errorf("Failed to upload metadata: %s", err) +// } +// defer res.Body.Close() +// if len(res.Cookies()) > 0 { +// client.Jar.SetCookies(req.URL, res.Cookies()) +// } +// if res.StatusCode != 200 { +// errBody, err := ioutil.ReadAll(res.Body) +// if err != nil { +// return fmt.Errorf("HTTP code %d while uploading metadata and error when"+ +// " trying to parse response body: %v", res.StatusCode, err) +// } +// var jsonBody map[string]string +// if err := json.Unmarshal(errBody, &jsonBody); err != nil { +// errBody = []byte(err.Error()) +// } else if jsonBody["error"] == "Image already exists" { +// fmt.Fprintf(stdout, "Image %v already uploaded ; skipping\n", img.Id) +// return nil +// } +// return fmt.Errorf("HTTP code %d while uploading metadata: %s", res.StatusCode, errBody) +// } + +// fmt.Fprintf(stdout, "Pushing %s fs layer\r\n", img.Id) +// root, err := img.root() +// if err != nil { +// return err +// } + +// var layerData *TempArchive +// // If the archive exists, use it +// file, err := os.Open(layerArchivePath(root)) +// if err != nil { +// if os.IsNotExist(err) { +// // If the archive does not exist, create one from the layer +// layerData, err = graph.TempLayerArchive(img.Id, Xz, stdout) +// if err != nil { +// return fmt.Errorf("Failed to generate layer archive: %s", err) +// } +// } else { +// return err +// } +// } else { +// defer file.Close() +// st, err := file.Stat() +// if err != nil { +// return err +// } +// layerData = &TempArchive{file, st.Size()} +// } + +// req3, err := http.NewRequest("PUT", registry+"/images/"+img.Id+"/layer", utils.ProgressReader(layerData, int(layerData.Size), stdout, "")) +// if err != nil { +// return err +// } + +// req3.ContentLength = -1 +// req3.TransferEncoding = []string{"chunked"} +// req3.Header.Set("Authorization", "Token "+strings.Join(token, ",")) +// res3, err := doWithCookies(client, req3) +// if err != nil { +// return fmt.Errorf("Failed to upload layer: %s", err) +// } +// defer res3.Body.Close() + +// if res3.StatusCode != 200 { +// errBody, err := ioutil.ReadAll(res3.Body) +// if err != nil { +// return fmt.Errorf("HTTP code %d while uploading metadata and error when"+ +// " trying to parse response body: %v", res.StatusCode, err) +// } +// return fmt.Errorf("Received HTTP code %d while uploading layer: %s", res3.StatusCode, errBody) +// } +// return nil +// } + +// // push a tag on the registry. +// // Remote has the format '/ +// func (r *Registry) pushTag(remote, revision, tag, registry string, token []string) error { +// // "jsonify" the string +// revision = "\"" + revision + "\"" +// registry = "https://" + registry + "/v1" + +// utils.Debugf("Pushing tags for rev [%s] on {%s}\n", revision, registry+"/users/"+remote+"/"+tag) + +// client := graph.getHttpClient() +// req, err := http.NewRequest("PUT", registry+"/repositories/"+remote+"/tags/"+tag, strings.NewReader(revision)) +// if err != nil { +// return err +// } +// req.Header.Add("Content-type", "application/json") +// req.Header.Set("Authorization", "Token "+strings.Join(token, ",")) +// req.ContentLength = int64(len(revision)) +// res, err := doWithCookies(client, req) +// if err != nil { +// return err +// } +// res.Body.Close() +// if res.StatusCode != 200 && res.StatusCode != 201 { +// return fmt.Errorf("Internal server error: %d trying to push tag %s on %s", res.StatusCode, tag, remote) +// } +// return nil +// } + +// // FIXME: this should really be PushTag +// func (r *Registry) pushPrimitive(stdout io.Writer, remote, tag, imgId, registry string, token []string) error { +// // Check if the local impage exists +// img, err := graph.Get(imgId) +// if err != nil { +// fmt.Fprintf(stdout, "Skipping tag %s:%s: %s does not exist\r\n", remote, tag, imgId) +// return nil +// } +// fmt.Fprintf(stdout, "Pushing image %s:%s\r\n", remote, tag) +// // Push the image +// if err = graph.PushImage(stdout, img, registry, token); err != nil { +// return err +// } +// fmt.Fprintf(stdout, "Registering tag %s:%s\r\n", remote, tag) +// // And then the tag +// if err = graph.pushTag(remote, imgId, tag, registry, token); err != nil { +// return err +// } +// return nil +// } + +// // Retrieve the checksum of an image +// // Priority: +// // - Check on the stored checksums +// // - Check if the archive exists, if it does not, ask the registry +// // - If the archive does exists, process the checksum from it +// // - If the archive does not exists and not found on registry, process checksum from layer +// func (r *Registry) getChecksum(imageId string) (string, error) { +// // FIXME: Use in-memory map instead of reading the file each time +// if sums, err := graph.getStoredChecksums(); err != nil { +// return "", err +// } else if checksum, exists := sums[imageId]; exists { +// return checksum, nil +// } + +// img, err := graph.Get(imageId) +// if err != nil { +// return "", err +// } + +// if _, err := os.Stat(layerArchivePath(graph.imageRoot(imageId))); err != nil { +// if os.IsNotExist(err) { +// // TODO: Ask the registry for the checksum +// // As the archive is not there, it is supposed to come from a pull. +// } else { +// return "", err +// } +// } + +// checksum, err := img.Checksum() +// if err != nil { +// return "", err +// } +// return checksum, nil +// } + +// // Push a repository to the registry. +// // Remote has the format '/ +// func (r *Registry) PushRepository(stdout io.Writer, remote string, localRepo Repository, authConfig *auth.AuthConfig) error { +// client := graph.getHttpClient() +// // FIXME: Do not reset the cookie each time? (need to reset it in case updating latest of a repo and repushing) +// client.Jar = cookiejar.NewCookieJar() +// var imgList []*ImgListJson + +// fmt.Fprintf(stdout, "Processing checksums\n") +// imageSet := make(map[string]struct{}) + +// for tag, id := range localRepo { +// img, err := graph.Get(id) +// if err != nil { +// return err +// } +// img.WalkHistory(func(img *Image) error { +// if _, exists := imageSet[img.Id]; exists { +// return nil +// } +// imageSet[img.Id] = struct{}{} +// checksum, err := graph.getChecksum(img.Id) +// if err != nil { +// return err +// } +// imgList = append([]*ImgListJson{{ +// Id: img.Id, +// Checksum: checksum, +// tag: tag, +// }}, imgList...) +// return nil +// }) +// } + +// imgListJson, err := json.Marshal(imgList) +// if err != nil { +// return err +// } + +// utils.Debugf("json sent: %s\n", imgListJson) + +// fmt.Fprintf(stdout, "Sending image list\n") +// req, err := http.NewRequest("PUT", auth.IndexServerAddress()+"/repositories/"+remote+"/", bytes.NewReader(imgListJson)) +// if err != nil { +// return err +// } +// req.SetBasicAuth(authConfig.Username, authConfig.Password) +// req.ContentLength = int64(len(imgListJson)) +// req.Header.Set("X-Docker-Token", "true") + +// res, err := client.Do(req) +// if err != nil { +// return err +// } +// defer res.Body.Close() + +// for res.StatusCode >= 300 && res.StatusCode < 400 { +// utils.Debugf("Redirected to %s\n", res.Header.Get("Location")) +// req, err = http.NewRequest("PUT", res.Header.Get("Location"), bytes.NewReader(imgListJson)) +// if err != nil { +// return err +// } +// req.SetBasicAuth(authConfig.Username, authConfig.Password) +// req.ContentLength = int64(len(imgListJson)) +// req.Header.Set("X-Docker-Token", "true") + +// res, err = client.Do(req) +// if err != nil { +// return err +// } +// defer res.Body.Close() +// } + +// if res.StatusCode != 200 && res.StatusCode != 201 { +// errBody, err := ioutil.ReadAll(res.Body) +// if err != nil { +// return err +// } +// return fmt.Errorf("Error: Status %d trying to push repository %s: %s", res.StatusCode, remote, errBody) +// } + +// var token, endpoints []string +// if res.Header.Get("X-Docker-Token") != "" { +// token = res.Header["X-Docker-Token"] +// utils.Debugf("Auth token: %v", token) +// } else { +// return fmt.Errorf("Index response didn't contain an access token") +// } +// if res.Header.Get("X-Docker-Endpoints") != "" { +// endpoints = res.Header["X-Docker-Endpoints"] +// } else { +// return fmt.Errorf("Index response didn't contain any endpoints") +// } + +// // FIXME: Send only needed images +// for _, registry := range endpoints { +// fmt.Fprintf(stdout, "Pushing repository %s to %s (%d tags)\r\n", remote, registry, len(localRepo)) +// // For each image within the repo, push them +// for _, elem := range imgList { +// if err := graph.pushPrimitive(stdout, remote, elem.tag, elem.Id, registry, token); err != nil { +// // FIXME: Continue on error? +// return err +// } +// } +// } + +// req2, err := http.NewRequest("PUT", auth.IndexServerAddress()+"/repositories/"+remote+"/images", bytes.NewReader(imgListJson)) +// if err != nil { +// return err +// } +// req2.SetBasicAuth(authConfig.Username, authConfig.Password) +// req2.Header["X-Docker-Endpoints"] = endpoints +// req2.ContentLength = int64(len(imgListJson)) +// res2, err := client.Do(req2) +// if err != nil { +// return err +// } +// defer res2.Body.Close() +// if res2.StatusCode != 204 { +// if errBody, err := ioutil.ReadAll(res2.Body); err != nil { +// return err +// } else { +// return fmt.Errorf("Error: Status %d trying to push checksums %s: %s", res2.StatusCode, remote, errBody) +// } +// } + +// return nil +// } + +func (r *Registry) SearchRepositories(stdout io.Writer, term string) (*SearchResults, error) { + client := r.getHttpClient() + u := auth.IndexServerAddress() + "/search?q=" + url.QueryEscape(term) + req, err := http.NewRequest("GET", u, nil) + if err != nil { + return nil, err + } + res, err := client.Do(req) + if err != nil { + return nil, err + } + defer res.Body.Close() + if res.StatusCode != 200 { + return nil, fmt.Errorf("Unexepected status code %d", res.StatusCode) + } + rawData, err := ioutil.ReadAll(res.Body) + if err != nil { + return nil, err + } + result := new(SearchResults) + err = json.Unmarshal(rawData, result) + return result, err +} + +type SearchResults struct { + Query string `json:"query"` + NumResults int `json:"num_results"` + Results []map[string]string `json:"results"` +} + +type RepositoryData struct { + ImgList map[string]*ImgData + Endpoints []string + Tokens []string +} + +type ImgData struct { + Id string `json:"id"` + Checksum string `json:"checksum,omitempty"` + Tag string `json:",omitempty"` +} + +type Registry struct { + httpClient *http.Client + authConfig *auth.AuthConfig +} + +func NewRegistry(authConfig *auth.AuthConfig) *Registry { + return &Registry{ + authConfig: authConfig, + } +} diff --git a/docs/registry_test.go b/docs/registry_test.go new file mode 100644 index 000000000..cead591a6 --- /dev/null +++ b/docs/registry_test.go @@ -0,0 +1,151 @@ +package registry + +import ( + "crypto/rand" + "encoding/hex" + "github.com/dotcloud/docker/auth" + "io/ioutil" + "os" + "path" + "testing" +) + +func TestPull(t *testing.T) { + os.Setenv("DOCKER_INDEX_URL", "") + runtime, err := newTestRuntime() + if err != nil { + t.Fatal(err) + } + defer nuke(runtime) + + err = runtime.graph.PullRepository(ioutil.Discard, "busybox", "", runtime.repositories, nil) + if err != nil { + t.Fatal(err) + } + img, err := runtime.repositories.LookupImage("busybox") + if err != nil { + t.Fatal(err) + } + + // Try to run something on this image to make sure the layer's been downloaded properly. + config, _, err := ParseRun([]string{img.Id, "echo", "Hello World"}, runtime.capabilities) + if err != nil { + t.Fatal(err) + } + + b := NewBuilder(runtime) + container, err := b.Create(config) + if err != nil { + t.Fatal(err) + } + if err := container.Start(); err != nil { + t.Fatal(err) + } + + if status := container.Wait(); status != 0 { + t.Fatalf("Expected status code 0, found %d instead", status) + } +} + +func TestPullTag(t *testing.T) { + os.Setenv("DOCKER_INDEX_URL", "") + runtime, err := newTestRuntime() + if err != nil { + t.Fatal(err) + } + defer nuke(runtime) + + err = runtime.graph.PullRepository(ioutil.Discard, "ubuntu", "12.04", runtime.repositories, nil) + if err != nil { + t.Fatal(err) + } + _, err = runtime.repositories.LookupImage("ubuntu:12.04") + if err != nil { + t.Fatal(err) + } + + img2, err := runtime.repositories.LookupImage("ubuntu:12.10") + if img2 != nil { + t.Fatalf("Expected nil image but found %v instead", img2.Id) + } +} + +func login(runtime *Runtime) error { + authConfig := auth.NewAuthConfig("unittester", "surlautrerivejetattendrai", "noise+unittester@dotcloud.com", runtime.root) + runtime.authConfig = authConfig + _, err := auth.Login(authConfig) + return err +} + +func TestPush(t *testing.T) { + os.Setenv("DOCKER_INDEX_URL", "https://indexstaging-docker.dotcloud.com") + defer os.Setenv("DOCKER_INDEX_URL", "") + runtime, err := newTestRuntime() + if err != nil { + t.Fatal(err) + } + defer nuke(runtime) + + err = login(runtime) + if err != nil { + t.Fatal(err) + } + + err = runtime.graph.PullRepository(ioutil.Discard, "joffrey/busybox", "", runtime.repositories, nil) + if err != nil { + t.Fatal(err) + } + tokenBuffer := make([]byte, 16) + _, err = rand.Read(tokenBuffer) + if err != nil { + t.Fatal(err) + } + token := hex.EncodeToString(tokenBuffer)[:29] + config, _, err := ParseRun([]string{"joffrey/busybox", "touch", "/" + token}, runtime.capabilities) + if err != nil { + t.Fatal(err) + } + + b := NewBuilder(runtime) + container, err := b.Create(config) + if err != nil { + t.Fatal(err) + } + if err := container.Start(); err != nil { + t.Fatal(err) + } + + if status := container.Wait(); status != 0 { + t.Fatalf("Expected status code 0, found %d instead", status) + } + + img, err := b.Commit(container, "unittester/"+token, "", "", "", nil) + if err != nil { + t.Fatal(err) + } + + repo := runtime.repositories.Repositories["unittester/"+token] + err = runtime.graph.PushRepository(ioutil.Discard, "unittester/"+token, repo, runtime.authConfig) + if err != nil { + t.Fatal(err) + } + + // Remove image so we can pull it again + if err := runtime.graph.Delete(img.Id); err != nil { + t.Fatal(err) + } + + err = runtime.graph.PullRepository(ioutil.Discard, "unittester/"+token, "", runtime.repositories, runtime.authConfig) + if err != nil { + t.Fatal(err) + } + + layerPath, err := img.layer() + if err != nil { + t.Fatal(err) + } + + if _, err := os.Stat(path.Join(layerPath, token)); err != nil { + t.Fatalf("Error while trying to retrieve token file: %v", err) + } +}