89 lines
2.0 KiB
Go
89 lines
2.0 KiB
Go
/*
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Copyright 2022 The Karmada Authors.
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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 backendstore
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import (
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"sync"
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"k8s.io/client-go/kubernetes"
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"k8s.io/client-go/tools/cache"
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"k8s.io/klog/v2"
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searchv1alpha1 "github.com/karmada-io/karmada/pkg/apis/search/v1alpha1"
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)
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// BackendStore define BackendStore interface
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type BackendStore interface {
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ResourceEventHandlerFuncs() cache.ResourceEventHandler
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Close()
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}
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var (
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backendLock sync.Mutex
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backends map[string]BackendStore
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k8sClient *kubernetes.Clientset
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)
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// Init init backend store manager
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func Init(cs *kubernetes.Clientset) {
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backendLock.Lock()
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backends = make(map[string]BackendStore)
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k8sClient = cs
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backendLock.Unlock()
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}
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// AddBackend add backend store
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func AddBackend(cluster string, cfg *searchv1alpha1.BackendStoreConfig) {
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backendLock.Lock()
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defer backendLock.Unlock()
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if cfg == nil || cfg.OpenSearch == nil {
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backends[cluster] = NewDefaultBackend(cluster)
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return
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}
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bs, err := NewOpenSearch(cluster, cfg)
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if err != nil {
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klog.Errorf("cannot create backend store %s: %v, use default backend store", cluster, err)
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return
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}
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backends[cluster] = bs
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}
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// DeleteBackend delete backend store
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func DeleteBackend(cluster string) {
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backendLock.Lock()
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defer backendLock.Unlock()
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bs, ok := backends[cluster]
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if ok {
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bs.Close()
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delete(backends, cluster)
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}
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}
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// GetBackend get backend store
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func GetBackend(cluster string) BackendStore {
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backendLock.Lock()
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defer backendLock.Unlock()
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bs, ok := backends[cluster]
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if !ok {
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return nil
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}
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return bs
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}
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