mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-30 18:20:19 +00:00
5af3fe5deb
this commits add the controller runtime and its dependency to the vendor. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
62 lines
2.0 KiB
Go
62 lines
2.0 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 client
|
|
|
|
import (
|
|
"context"
|
|
|
|
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
)
|
|
|
|
// DelegatingClient forms a Client by composing separate reader, writer and
|
|
// statusclient interfaces. This way, you can have an Client that reads from a
|
|
// cache and writes to the API server.
|
|
type DelegatingClient struct {
|
|
Reader
|
|
Writer
|
|
StatusClient
|
|
}
|
|
|
|
// DelegatingReader forms a Reader that will cause Get and List requests for
|
|
// unstructured types to use the ClientReader while requests for any other type
|
|
// of object with use the CacheReader. This avoids accidentally caching the
|
|
// entire cluster in the common case of loading arbitrary unstructured objects
|
|
// (e.g. from OwnerReferences).
|
|
type DelegatingReader struct {
|
|
CacheReader Reader
|
|
ClientReader Reader
|
|
}
|
|
|
|
// Get retrieves an obj for a given object key from the Kubernetes Cluster.
|
|
func (d *DelegatingReader) Get(ctx context.Context, key ObjectKey, obj runtime.Object) error {
|
|
_, isUnstructured := obj.(*unstructured.Unstructured)
|
|
if isUnstructured {
|
|
return d.ClientReader.Get(ctx, key, obj)
|
|
}
|
|
return d.CacheReader.Get(ctx, key, obj)
|
|
}
|
|
|
|
// List retrieves list of objects for a given namespace and list options.
|
|
func (d *DelegatingReader) List(ctx context.Context, list runtime.Object, opts ...ListOption) error {
|
|
_, isUnstructured := list.(*unstructured.UnstructuredList)
|
|
if isUnstructured {
|
|
return d.ClientReader.List(ctx, list, opts...)
|
|
}
|
|
return d.CacheReader.List(ctx, list, opts...)
|
|
}
|