mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-23 13:30:23 +00:00
53 lines
1.5 KiB
Go
53 lines
1.5 KiB
Go
/*
|
|
Copyright 2018 The Kubernetes Authors.
|
|
|
|
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.
|
|
*/
|
|
|
|
package util
|
|
|
|
import (
|
|
"errors"
|
|
|
|
"github.com/golang/glog"
|
|
)
|
|
|
|
const (
|
|
PluginFolder = "/var/lib/kubelet/plugins"
|
|
)
|
|
|
|
type ForAllFunc func(identifier string) error
|
|
|
|
type CachePersister interface {
|
|
Create(identifier string, data interface{}) error
|
|
Get(identifier string, data interface{}) error
|
|
ForAll(pattern string, destObj interface{}, f ForAllFunc) error
|
|
Delete(identifier string) error
|
|
}
|
|
|
|
func NewCachePersister(metadataStore string, driverName string) (CachePersister, error) {
|
|
if metadataStore == "k8s_configmap" {
|
|
glog.Infof("cache-perister: using kubernetes configmap as metadata cache persister")
|
|
k8scm := &K8sCMCache{}
|
|
k8scm.Client = NewK8sClient()
|
|
k8scm.Namespace = GetK8sNamespace()
|
|
return k8scm, nil
|
|
} else if metadataStore == "node" {
|
|
glog.Infof("cache-persister: using node as metadata cache persister")
|
|
nc := &NodeCache{}
|
|
nc.BasePath = PluginFolder + "/" + driverName
|
|
return nc, nil
|
|
}
|
|
return nil, errors.New("cache-persister: couldn't parse metadatastorage flag")
|
|
}
|