diff options
Diffstat (limited to 'pkg/api/handlers/libpod/images.go')
-rw-r--r-- | pkg/api/handlers/libpod/images.go | 391 |
1 files changed, 361 insertions, 30 deletions
diff --git a/pkg/api/handlers/libpod/images.go b/pkg/api/handlers/libpod/images.go index bbc8c9346..4b24d7d9f 100644 --- a/pkg/api/handlers/libpod/images.go +++ b/pkg/api/handlers/libpod/images.go @@ -1,15 +1,28 @@ package libpod import ( + "context" "fmt" + "io" "io/ioutil" "net/http" "os" + "strconv" + "strings" + "github.com/containers/buildah" + "github.com/containers/image/v5/docker" + "github.com/containers/image/v5/docker/reference" + "github.com/containers/image/v5/manifest" + "github.com/containers/image/v5/transports/alltransports" + "github.com/containers/image/v5/types" "github.com/containers/libpod/libpod" + "github.com/containers/libpod/libpod/image" + image2 "github.com/containers/libpod/libpod/image" "github.com/containers/libpod/pkg/api/handlers" "github.com/containers/libpod/pkg/api/handlers/utils" - "github.com/gorilla/mux" + "github.com/containers/libpod/pkg/domain/entities" + "github.com/containers/libpod/pkg/util" "github.com/gorilla/schema" "github.com/pkg/errors" ) @@ -26,11 +39,8 @@ import ( // create func ImageExists(w http.ResponseWriter, r *http.Request) { - // 200 ok - // 404 no such - // 500 internal runtime := r.Context().Value("runtime").(*libpod.Runtime) - name := mux.Vars(r)["name"] + name := utils.GetName(r) _, err := runtime.ImageRuntime().NewFromLocal(name) if err != nil { @@ -41,22 +51,39 @@ func ImageExists(w http.ResponseWriter, r *http.Request) { } func ImageTree(w http.ResponseWriter, r *http.Request) { - // tree is a bit of a mess ... logic is in adapter and therefore not callable from here. needs rework - - // name := mux.Vars(r)["name"] - // _, layerInfoMap, _, err := s.Runtime.Tree(name) - // if err != nil { - // Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrapf(err, "Failed to find image information for %q", name)) - // return - // } - // it is not clear to me how to deal with this given all the processing of the image - // is in main. we need to discuss how that really should be and return something useful. - handlers.UnsupportedHandler(w, r) + runtime := r.Context().Value("runtime").(*libpod.Runtime) + name := utils.GetName(r) + + img, err := runtime.ImageRuntime().NewFromLocal(name) + if err != nil { + utils.Error(w, "Something went wrong.", http.StatusNotFound, errors.Wrapf(err, "Failed to find image %s", name)) + return + } + + decoder := r.Context().Value("decoder").(*schema.Decoder) + query := struct { + WhatRequires bool `schema:"whatrequires"` + }{ + WhatRequires: false, + } + if err := decoder.Decode(&query, r.URL.Query()); err != nil { + utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest, + errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String())) + return + } + + tree, err := img.GenerateTree(query.WhatRequires) + if err != nil { + utils.Error(w, "Server error", http.StatusInternalServerError, errors.Wrapf(err, "failed to generate image tree for %s", name)) + return + } + + utils.WriteResponse(w, http.StatusOK, tree) } func GetImage(w http.ResponseWriter, r *http.Request) { - name := mux.Vars(r)["name"] - newImage, err := handlers.GetImage(r, name) + name := utils.GetName(r) + newImage, err := utils.GetImage(r, name) if err != nil { utils.Error(w, "Something went wrong.", http.StatusNotFound, errors.Wrapf(err, "Failed to find image %s", name)) return @@ -67,15 +94,15 @@ func GetImage(w http.ResponseWriter, r *http.Request) { return } utils.WriteResponse(w, http.StatusOK, inspect) - } + func GetImages(w http.ResponseWriter, r *http.Request) { images, err := utils.GetImages(w, r) if err != nil { utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "Failed get images")) return } - var summaries = make([]*handlers.ImageSummary, len(images)) + var summaries = make([]*entities.ImageSummary, len(images)) for j, img := range images { is, err := handlers.ImageToImageSummary(img) if err != nil { @@ -83,7 +110,7 @@ func GetImages(w http.ResponseWriter, r *http.Request) { return } // libpod has additional fields that we need to populate. - is.CreatedTime = img.Created() + is.Created = img.Created().Unix() is.ReadOnly = img.IsReadOnly() summaries[j] = is } @@ -91,8 +118,9 @@ func GetImages(w http.ResponseWriter, r *http.Request) { } func PruneImages(w http.ResponseWriter, r *http.Request) { - // 200 ok - // 500 internal + var ( + err error + ) runtime := r.Context().Value("runtime").(*libpod.Runtime) decoder := r.Context().Value("decoder").(*schema.Decoder) query := struct { @@ -110,10 +138,21 @@ func PruneImages(w http.ResponseWriter, r *http.Request) { var libpodFilters = []string{} if _, found := r.URL.Query()["filters"]; found { + dangling := query.Filters["all"] + if len(dangling) > 0 { + query.All, err = strconv.ParseBool(query.Filters["all"][0]) + if err != nil { + utils.InternalServerError(w, err) + return + } + } + // dangling is special and not implemented in the libpod side of things + delete(query.Filters, "dangling") for k, v := range query.Filters { libpodFilters = append(libpodFilters, fmt.Sprintf("%s=%s", k, v[0])) } } + cids, err := runtime.ImageRuntime().PruneImages(r.Context(), query.All, libpodFilters) if err != nil { utils.Error(w, "Something went wrong.", http.StatusInternalServerError, err) @@ -129,7 +168,7 @@ func ExportImage(w http.ResponseWriter, r *http.Request) { Compress bool `schema:"compress"` Format string `schema:"format"` }{ - // override any golang type defaults + Format: "docker-archive", } if err := decoder.Decode(&query, r.URL.Query()); err != nil { @@ -138,11 +177,6 @@ func ExportImage(w http.ResponseWriter, r *http.Request) { return } - if len(query.Format) < 1 { - utils.InternalServerError(w, errors.New("format parameter cannot be empty.")) - return - } - tmpfile, err := ioutil.TempFile("", "api.tar") if err != nil { utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "unable to create tempfile")) @@ -152,12 +186,13 @@ func ExportImage(w http.ResponseWriter, r *http.Request) { utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "unable to close tempfile")) return } - name := mux.Vars(r)["name"] + name := utils.GetName(r) newImage, err := runtime.ImageRuntime().NewFromLocal(name) if err != nil { utils.ImageNotFound(w, name, err) return } + if err := newImage.Save(r.Context(), name, query.Format, tmpfile.Name(), []string{}, false, query.Compress); err != nil { utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest, err) return @@ -171,3 +206,299 @@ func ExportImage(w http.ResponseWriter, r *http.Request) { defer os.Remove(tmpfile.Name()) utils.WriteResponse(w, http.StatusOK, rdr) } + +func ImagesLoad(w http.ResponseWriter, r *http.Request) { + runtime := r.Context().Value("runtime").(*libpod.Runtime) + decoder := r.Context().Value("decoder").(*schema.Decoder) + query := struct { + Reference string `schema:"reference"` + }{ + // Add defaults here once needed. + } + + if err := decoder.Decode(&query, r.URL.Query()); err != nil { + utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest, + errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String())) + return + } + + tmpfile, err := ioutil.TempFile("", "libpod-images-load.tar") + if err != nil { + utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "unable to create tempfile")) + return + } + defer os.Remove(tmpfile.Name()) + defer tmpfile.Close() + + if _, err := io.Copy(tmpfile, r.Body); err != nil && err != io.EOF { + utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "unable to write archive to temporary file")) + return + } + + tmpfile.Close() + loadedImage, err := runtime.LoadImage(context.Background(), query.Reference, tmpfile.Name(), os.Stderr, "") + if err != nil { + utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "unable to load image")) + return + } + split := strings.Split(loadedImage, ",") + newImage, err := runtime.ImageRuntime().NewFromLocal(split[0]) + if err != nil { + utils.InternalServerError(w, err) + return + } + // TODO this should go into libpod proper at some point. + if len(query.Reference) > 0 { + if err := newImage.TagImage(query.Reference); err != nil { + utils.InternalServerError(w, err) + return + } + } + utils.WriteResponse(w, http.StatusOK, handlers.LibpodImagesLoadReport{ID: loadedImage}) +} + +func ImagesImport(w http.ResponseWriter, r *http.Request) { + runtime := r.Context().Value("runtime").(*libpod.Runtime) + decoder := r.Context().Value("decoder").(*schema.Decoder) + query := struct { + Changes []string `schema:"changes"` + Message string `schema:"message"` + Reference string `schema:"reference"` + URL string `schema:"URL"` + }{ + // Add defaults here once needed. + } + + if err := decoder.Decode(&query, r.URL.Query()); err != nil { + utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest, + errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String())) + return + } + + // Check if we need to load the image from a URL or from the request's body. + source := query.URL + if len(query.URL) == 0 { + tmpfile, err := ioutil.TempFile("", "libpod-images-import.tar") + if err != nil { + utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "unable to create tempfile")) + return + } + defer os.Remove(tmpfile.Name()) + defer tmpfile.Close() + + if _, err := io.Copy(tmpfile, r.Body); err != nil && err != io.EOF { + utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "unable to write archive to temporary file")) + return + } + + tmpfile.Close() + source = tmpfile.Name() + } + importedImage, err := runtime.Import(context.Background(), source, query.Reference, query.Changes, query.Message, true) + if err != nil { + utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "unable to import image")) + return + } + + utils.WriteResponse(w, http.StatusOK, handlers.LibpodImagesImportReport{ID: importedImage}) +} + +func ImagesPull(w http.ResponseWriter, r *http.Request) { + runtime := r.Context().Value("runtime").(*libpod.Runtime) + decoder := r.Context().Value("decoder").(*schema.Decoder) + query := struct { + Reference string `schema:"reference"` + Credentials string `schema:"credentials"` + OverrideOS string `schema:"overrideOS"` + OverrideArch string `schema:"overrideArch"` + TLSVerify bool `schema:"tlsVerify"` + AllTags bool `schema:"allTags"` + }{ + TLSVerify: true, + } + + if err := decoder.Decode(&query, r.URL.Query()); err != nil { + utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest, + errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String())) + return + } + + if len(query.Reference) == 0 { + utils.InternalServerError(w, errors.New("reference parameter cannot be empty")) + return + } + // Enforce the docker transport. This is just a precaution as some callers + // might accustomed to using the "transport:reference" notation. Using + // another than the "docker://" transport does not really make sense for a + // remote case. For loading tarballs, the load and import endpoints should + // be used. + imageRef, err := alltransports.ParseImageName(query.Reference) + if err == nil && imageRef.Transport().Name() != docker.Transport.Name() { + utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest, + errors.Errorf("reference %q must be a docker reference", query.Reference)) + return + } else if err != nil { + origErr := err + imageRef, err = alltransports.ParseImageName(fmt.Sprintf("%s://%s", docker.Transport.Name(), query.Reference)) + if err != nil { + utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest, + errors.Wrapf(origErr, "reference %q must be a docker reference", query.Reference)) + return + } + } + + // all-tags doesn't work with a tagged reference, so let's check early + namedRef, err := reference.Parse(query.Reference) + if err != nil { + utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest, + errors.Wrapf(err, "error parsing reference %q", query.Reference)) + return + } + if _, isTagged := namedRef.(reference.Tagged); isTagged && query.AllTags { + utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest, + errors.Errorf("reference %q must not have a tag for all-tags", query.Reference)) + return + } + + var registryCreds *types.DockerAuthConfig + if len(query.Credentials) != 0 { + creds, err := util.ParseRegistryCreds(query.Credentials) + if err != nil { + utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest, + errors.Wrapf(err, "error parsing credentials %q", query.Credentials)) + return + } + registryCreds = creds + } + + // Setup the registry options + dockerRegistryOptions := image.DockerRegistryOptions{ + DockerRegistryCreds: registryCreds, + OSChoice: query.OverrideOS, + ArchitectureChoice: query.OverrideArch, + } + if query.TLSVerify { + dockerRegistryOptions.DockerInsecureSkipTLSVerify = types.NewOptionalBool(!query.TLSVerify) + } + + // Prepare the images we want to pull + imagesToPull := []string{} + res := []handlers.LibpodImagesPullReport{} + imageName := namedRef.String() + + if !query.AllTags { + imagesToPull = append(imagesToPull, imageName) + } else { + systemContext := image.GetSystemContext("", "", false) + tags, err := docker.GetRepositoryTags(context.Background(), systemContext, imageRef) + if err != nil { + utils.InternalServerError(w, errors.Wrap(err, "error getting repository tags")) + return + } + for _, tag := range tags { + imagesToPull = append(imagesToPull, fmt.Sprintf("%s:%s", imageName, tag)) + } + } + + // Finally pull the images + for _, img := range imagesToPull { + newImage, err := runtime.ImageRuntime().New( + context.Background(), + img, + "", + "", + os.Stderr, + &dockerRegistryOptions, + image.SigningOptions{}, + nil, + util.PullImageAlways) + if err != nil { + utils.InternalServerError(w, errors.Wrapf(err, "error pulling image %q", query.Reference)) + return + } + res = append(res, handlers.LibpodImagesPullReport{ID: newImage.ID()}) + } + + utils.WriteResponse(w, http.StatusOK, res) +} + +func CommitContainer(w http.ResponseWriter, r *http.Request) { + var ( + destImage string + mimeType string + ) + decoder := r.Context().Value("decoder").(*schema.Decoder) + runtime := r.Context().Value("runtime").(*libpod.Runtime) + + query := struct { + Author string `schema:"author"` + Changes []string `schema:"changes"` + Comment string `schema:"comment"` + Container string `schema:"container"` + Format string `schema:"format"` + Pause bool `schema:"pause"` + Repo string `schema:"repo"` + Tag string `schema:"tag"` + }{ + Format: "oci", + } + + if err := decoder.Decode(&query, r.URL.Query()); err != nil { + utils.Error(w, "Something went wrong.", http.StatusBadRequest, errors.Wrapf(err, "Failed to parse parameters for %s", r.URL.String())) + return + } + rtc, err := runtime.GetConfig() + if err != nil { + utils.Error(w, "failed to get runtime config", http.StatusInternalServerError, errors.Wrap(err, "failed to get runtime config")) + return + } + sc := image2.GetSystemContext(rtc.Engine.SignaturePolicyPath, "", false) + tag := "latest" + options := libpod.ContainerCommitOptions{ + Pause: true, + } + switch query.Format { + case "oci": + mimeType = buildah.OCIv1ImageManifest + if len(query.Comment) > 0 { + utils.InternalServerError(w, errors.New("messages are only compatible with the docker image format (-f docker)")) + return + } + case "docker": + mimeType = manifest.DockerV2Schema2MediaType + default: + utils.InternalServerError(w, errors.Errorf("unrecognized image format %q", query.Format)) + return + } + options.CommitOptions = buildah.CommitOptions{ + SignaturePolicyPath: rtc.Engine.SignaturePolicyPath, + ReportWriter: os.Stderr, + SystemContext: sc, + PreferredManifestType: mimeType, + } + + if len(query.Tag) > 0 { + tag = query.Tag + } + options.Message = query.Comment + options.Author = query.Author + options.Pause = query.Pause + options.Changes = query.Changes + ctr, err := runtime.LookupContainer(query.Container) + if err != nil { + utils.Error(w, "failed to lookup container", http.StatusNotFound, err) + return + } + + // I know mitr hates this ... but doing for now + if len(query.Repo) > 1 { + destImage = fmt.Sprintf("%s:%s", query.Repo, tag) + } + + commitImage, err := ctr.Commit(r.Context(), destImage, options) + if err != nil && !strings.Contains(err.Error(), "is not running") { + utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrapf(err, "CommitFailure")) + return + } + utils.WriteResponse(w, http.StatusOK, handlers.IDResponse{ID: commitImage.ID()}) // nolint +} |