mirror of https://github.com/harness/drone.git
114 lines
3.5 KiB
Go
114 lines
3.5 KiB
Go
// Source: https://github.com/goharbor/harbor
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// Copyright 2016 Project Harbor Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package proxy
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import (
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"io"
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"github.com/harness/gitness/app/store"
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api "github.com/harness/gitness/registry/app/api/openapi/contracts/artifact"
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"github.com/harness/gitness/registry/app/manifest"
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"github.com/harness/gitness/registry/app/remote/adapter"
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"github.com/harness/gitness/registry/types"
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"github.com/harness/gitness/secret"
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"github.com/rs/zerolog/log"
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"golang.org/x/net/context"
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_ "github.com/harness/gitness/registry/app/remote/adapter/dockerhub" // This is required to init docker adapter
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)
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const DockerHubURL = "https://registry-1.docker.io"
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// RemoteInterface defines operations related to remote repository under proxy.
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type RemoteInterface interface {
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// BlobReader create a reader for remote blob.
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BlobReader(registry, dig string) (int64, io.ReadCloser, error)
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// Manifest get manifest by reference.
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Manifest(registry string, ref string) (manifest.Manifest, string, error)
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// ManifestExist checks manifest exist, if exist, return digest.
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ManifestExist(registry string, ref string) (bool, *manifest.Descriptor, error)
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// ListTags returns all tags of the registry.
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ListTags(registry string) ([]string, error)
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}
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type remoteHelper struct {
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repoKey string
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// TODO: do we need image name here also?
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registry adapter.ArtifactRegistry
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upstreamProxy types.UpstreamProxy
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URL string
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secretService secret.Service
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}
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// NewRemoteHelper create a remote interface.
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func NewRemoteHelper(
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ctx context.Context, spacePathStore store.SpacePathStore, secretService secret.Service, repoKey string,
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proxy types.UpstreamProxy,
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) (RemoteInterface, error) {
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if proxy.Source == string(api.UpstreamConfigSourceDockerhub) {
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proxy.RepoURL = DockerHubURL
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}
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r := &remoteHelper{
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repoKey: repoKey,
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upstreamProxy: proxy,
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secretService: secretService,
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}
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if err := r.init(ctx, spacePathStore); err != nil {
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return nil, err
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}
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return r, nil
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}
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func (r *remoteHelper) init(ctx context.Context, spacePathStore store.SpacePathStore) error {
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if r.registry != nil {
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return nil
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}
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// TODO add health check.
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factory, err := adapter.GetFactory("docker")
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if err != nil {
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return err
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}
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adp, err := factory.Create(ctx, spacePathStore, r.upstreamProxy, r.secretService)
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if err != nil {
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return err
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}
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reg, ok := adp.(adapter.ArtifactRegistry)
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if !ok {
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log.Warn().Msgf("Error: adp is not of type adapter.ArtifactRegistry")
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}
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r.registry = reg
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return nil
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}
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func (r *remoteHelper) BlobReader(registry, dig string) (int64, io.ReadCloser, error) {
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return r.registry.PullBlob(registry, dig)
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}
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func (r *remoteHelper) Manifest(registry string, ref string) (manifest.Manifest, string, error) {
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return r.registry.PullManifest(registry, ref)
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}
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func (r *remoteHelper) ManifestExist(registry string, ref string) (bool, *manifest.Descriptor, error) {
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return r.registry.ManifestExist(registry, ref)
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}
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func (r *remoteHelper) ListTags(registry string) ([]string, error) {
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return r.registry.ListTags(registry)
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}
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