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* Add push command Co-authored-by: Yiran Wang <[email protected]>
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@@ -10,3 +10,4 @@ env | |
| __pycache__ | ||
| *.pyc | ||
| .vscode | ||
| .DS_Store | ||
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| // Copyright (c) 2018 Uber Technologies, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
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| package cmd | ||
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| import ( | ||
| "encoding/json" | ||
| "errors" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "os" | ||
| "path" | ||
| "path/filepath" | ||
|
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| "github.com/uber/makisu/lib/docker/image" | ||
| "github.com/uber/makisu/lib/log" | ||
| "github.com/uber/makisu/lib/registry" | ||
| "github.com/uber/makisu/lib/storage" | ||
| "github.com/uber/makisu/lib/tario" | ||
| "github.com/uber/makisu/lib/utils" | ||
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| "github.com/spf13/cobra" | ||
| ) | ||
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| type pushCmd struct { | ||
| *cobra.Command | ||
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| tag string | ||
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| pushRegistries []string | ||
| replicas []string | ||
| registryConfig string | ||
| } | ||
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| func getPushCmd() *pushCmd { | ||
| pushCmd := &pushCmd{ | ||
| Command: &cobra.Command{ | ||
| Use: "push -t=<image_tag> [flags] <image_tar_path>", | ||
| DisableFlagsInUseLine: true, | ||
| Short: "Push docker image to registries", | ||
| }, | ||
| } | ||
| pushCmd.Args = func(cmd *cobra.Command, args []string) error { | ||
| if len(args) != 1 { | ||
| return errors.New("Requires image tar path as argument") | ||
| } | ||
| return nil | ||
| } | ||
| pushCmd.Run = func(cmd *cobra.Command, args []string) { | ||
| if err := pushCmd.processFlags(); err != nil { | ||
| log.Errorf("failed to process flags: %s", err) | ||
| os.Exit(1) | ||
| } | ||
|
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| if err := pushCmd.Push(args[0]); err != nil { | ||
| log.Error(err) | ||
| os.Exit(1) | ||
| } | ||
| } | ||
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| pushCmd.PersistentFlags().StringVarP(&pushCmd.tag, "tag", "t", "", "Image tag (required)") | ||
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| pushCmd.PersistentFlags().StringArrayVar(&pushCmd.pushRegistries, "push", nil, "Registry to push image to") | ||
| pushCmd.PersistentFlags().StringArrayVar(&pushCmd.replicas, "replica", nil, "Push targets with alternative full image names \"<registry>/<repo>:<tag>\"") | ||
| pushCmd.PersistentFlags().StringVar(&pushCmd.registryConfig, "registry-config", "", "Set build-time variables") | ||
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| pushCmd.MarkFlagRequired("tag") | ||
| pushCmd.Flags().SortFlags = false | ||
| pushCmd.PersistentFlags().SortFlags = false | ||
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| return pushCmd | ||
| } | ||
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| func (cmd *pushCmd) processFlags() error { | ||
| if err := initRegistryConfig(cmd.registryConfig); err != nil { | ||
| return fmt.Errorf("failed to initialize registry configuration: %s", err) | ||
| } | ||
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| return nil | ||
| } | ||
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| // Push image tar to docker registries. | ||
| func (cmd *pushCmd) Push(imageTarPath string) error { | ||
| log.Infof("Starting Makisu push (version=%s)", utils.BuildHash) | ||
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| imageName, err := cmd.getTargetImageName() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| // TODO: make configurable? | ||
| store, err := storage.NewImageStore("/tmp/makisu-storage") | ||
| if err != nil { | ||
| return fmt.Errorf("unable to create internal store: %s", err) | ||
| } | ||
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| if err := cmd.loadImageTarIntoStore(store, imageName, cmd.replicas, imageTarPath); err != nil { | ||
| return fmt.Errorf("unable to import image: %s", err) | ||
| } | ||
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| // Push image to registries that were specified in the --push flag. | ||
| for _, registry := range cmd.pushRegistries { | ||
| target := imageName.WithRegistry(registry) | ||
| if err := cmd.pushImage(store, target); err != nil { | ||
| return fmt.Errorf("failed to push image: %s", err) | ||
| } | ||
| } | ||
| for _, replica := range cmd.replicas { | ||
| target := image.MustParseName(replica) | ||
| if err := cmd.pushImage(store, target); err != nil { | ||
| return fmt.Errorf("failed to push image: %s", err) | ||
| } | ||
| } | ||
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| log.Infof("Finished pushing %s", imageName.ShortName()) | ||
| return nil | ||
| } | ||
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| func (cmd *pushCmd) getTargetImageName() (image.Name, error) { | ||
| if cmd.tag == "" { | ||
| msg := "please specify a target image name: push -t=<image_tag> [flags] <image_tar_path>" | ||
| return image.Name{}, errors.New(msg) | ||
| } | ||
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| return image.MustParseName(cmd.tag), nil | ||
| } | ||
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| func (cmd *pushCmd) loadImageTarIntoStore( | ||
| store *storage.ImageStore, imageName image.Name, replicas []string, imageTarPath string) error { | ||
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| if err := cmd.importTar(store, imageName, replicas, imageTarPath); err != nil { | ||
| return fmt.Errorf("import image tar: %s", err) | ||
| } | ||
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| return nil | ||
| } | ||
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| func (cmd *pushCmd) pushImage(store *storage.ImageStore, imageName image.Name) error { | ||
| registryClient := registry.New(store, imageName.GetRegistry(), imageName.GetRepository()) | ||
| if err := registryClient.Push(imageName.GetTag()); err != nil { | ||
| return fmt.Errorf("failed to push image: %s", err) | ||
| } | ||
| log.Infof("Successfully pushed %s to %s", imageName, imageName.GetRegistry()) | ||
| return nil | ||
| } | ||
|
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| // importTar imports an image, as a tar, to the image store. | ||
| func (cmd *pushCmd) importTar( | ||
| store *storage.ImageStore, imageName image.Name, replicas []string, tarPath string) error { | ||
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| repo, tag := imageName.GetRepository(), imageName.GetTag() | ||
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| // Extract tar into temporary directory. | ||
| dir := filepath.Join(store.SandboxDir, repo, tag) | ||
| if err := os.MkdirAll(dir, 0755); err != nil { | ||
| return fmt.Errorf("create unpack directory: %s", err) | ||
| } | ||
| defer os.RemoveAll(dir) | ||
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| reader, err := os.Open(tarPath) | ||
| if err != nil { | ||
| return fmt.Errorf("open tar file: %s", err) | ||
| } | ||
| defer reader.Close() | ||
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| if err := tario.Untar(reader, dir); err != nil { | ||
| return fmt.Errorf("unpack tar: %s", err) | ||
| } | ||
|
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| // Read manifest. | ||
| exportManifestPath := filepath.Join(dir, "manifest.json") | ||
| exportManifestData, err := ioutil.ReadFile(exportManifestPath) | ||
| if err != nil { | ||
| return fmt.Errorf("read export manifest: %s", err) | ||
| } | ||
|
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| var exportManifests []image.ExportManifest | ||
| if err := json.Unmarshal(exportManifestData, &exportManifests); err != nil { | ||
| return fmt.Errorf("unmarshal export manifest: %s", err) | ||
| } | ||
|
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| for _, exportManifest := range exportManifests { | ||
| // Import extracted dir content into image store -- {sha}.json. | ||
| configPath := filepath.Join(dir, exportManifest.Config.String()) | ||
|
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| configInfo, err := os.Stat(configPath) | ||
| if err != nil { | ||
| return fmt.Errorf("lookup config file info: %s", err) | ||
| } | ||
|
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| configReader, err := os.Open(configPath) | ||
| if err != nil { | ||
| return fmt.Errorf("open config json: %s", err) | ||
| } | ||
| defer configReader.Close() | ||
| configDigest, err := image.NewDigester().FromReader(configReader) | ||
|
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| if err := store.Layers.LinkStoreFileFrom( | ||
| configDigest.Hex(), configPath); err != nil && !os.IsExist(err) { | ||
|
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| return fmt.Errorf("commit config to store: %s", err) | ||
| } | ||
|
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| // Import extracted dir content into image store -- {sha}/layer.tar. | ||
| var layers []image.Descriptor | ||
| for _, layer := range exportManifest.Layers { | ||
| layerPath := path.Join(dir, layer.String()) | ||
|
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| layerInfo, err := os.Stat(layerPath) | ||
| if err != nil { | ||
| return fmt.Errorf("lookup layer file info: %s", err) | ||
| } | ||
|
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| layerReader, err := os.Open(layerPath) | ||
| if err != nil { | ||
| return fmt.Errorf("open layer tar: %s", err) | ||
| } | ||
| defer layerReader.Close() | ||
| layerDigest, err := image.NewDigester().FromReader(layerReader) | ||
|
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| if err := store.Layers.LinkStoreFileFrom( | ||
| layerDigest.Hex(), layerPath); err != nil && !os.IsExist(err) { | ||
|
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| return fmt.Errorf("commit layer to store: %s", err) | ||
| } | ||
|
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| layers = append(layers, image.Descriptor{ | ||
| MediaType: image.MediaTypeLayer, | ||
| Size: layerInfo.Size(), | ||
| Digest: layerDigest, | ||
| }) | ||
| } | ||
|
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| // Import extracted dir content into image store -- manifest.json. | ||
| distManifest := image.DistributionManifest{ | ||
| SchemaVersion: 2, | ||
| MediaType: image.MediaTypeManifest, | ||
| Config: image.Descriptor{ | ||
| MediaType: image.MediaTypeConfig, | ||
| Size: configInfo.Size(), | ||
| Digest: configDigest, | ||
| }, | ||
| Layers: layers, | ||
| } | ||
| store.SaveManifest(distManifest, imageName) | ||
|
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| for _, replica := range replicas { | ||
| parsed := image.MustParseName(replica) | ||
| store.SaveManifest(distManifest, parsed) | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } |
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