mirror of
https://github.com/goharbor/harbor.git
synced 2024-09-07 19:48:06 +02:00
115 lines
2.8 KiB
Go
115 lines
2.8 KiB
Go
/*
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Copyright (c) 2016 VMware, Inc. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package utils
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import (
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"os"
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"time"
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"github.com/vmware/harbor/utils/log"
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"github.com/vmware/harbor/utils/registry"
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"github.com/astaxie/beego/cache"
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)
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var (
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// Cache is the global cache in system.
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Cache cache.Cache
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endpoint string
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username string
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registryClient *registry.Registry
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repositoryClients map[string]*registry.Repository
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)
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const catalogKey string = "catalog"
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func init() {
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var err error
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Cache, err = cache.NewCache("memory", `{"interval":720}`)
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if err != nil {
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log.Errorf("Failed to initialize cache, error:%v", err)
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}
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endpoint = os.Getenv("REGISTRY_URL")
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username = "admin"
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repositoryClients = make(map[string]*registry.Repository, 10)
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}
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// RefreshCatalogCache calls registry's API to get repository list and write it to cache.
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func RefreshCatalogCache() error {
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log.Debug("refreshing catalog cache...")
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if registryClient == nil {
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var err error
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registryClient, err = registry.NewRegistryWithUsername(endpoint, username)
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if err != nil {
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log.Errorf("error occurred while initializing registry client used by cache: %v", err)
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return err
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}
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}
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var err error
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rs, err := registryClient.Catalog()
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if err != nil {
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return err
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}
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repos := []string{}
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for _, repo := range rs {
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rc, ok := repositoryClients[repo]
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if !ok {
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rc, err = registry.NewRepositoryWithUsername(repo, endpoint, username)
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if err != nil {
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log.Errorf("error occurred while initializing repository client used by cache: %s %v", repo, err)
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continue
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}
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repositoryClients[repo] = rc
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}
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tags, err := rc.ListTag()
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if err != nil {
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log.Errorf("error occurred while list tag for %s: %v", repo, err)
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continue
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}
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if len(tags) != 0 {
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repos = append(repos, repo)
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log.Debugf("add %s to catalog cache", repo)
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}
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}
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Cache.Put(catalogKey, repos, 600*time.Second)
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return nil
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}
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// GetRepoFromCache get repository list from cache, it refreshes the cache if it's empty.
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func GetRepoFromCache() ([]string, error) {
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result := Cache.Get(catalogKey)
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if result == nil {
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err := RefreshCatalogCache()
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if err != nil {
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return nil, err
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}
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cached := Cache.Get(catalogKey)
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if cached != nil {
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return cached.([]string), nil
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}
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return nil, nil
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}
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return result.([]string), nil
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}
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