mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-05 20:50:24 +00:00
50 lines
1.9 KiB
Go
50 lines
1.9 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 contains functionality for interacting with Kubernetes API
|
||
|
// servers.
|
||
|
//
|
||
|
// Clients
|
||
|
//
|
||
|
// Clients are split into two interfaces -- Readers and Writers. Readers
|
||
|
// get and list, while writers create, update, and delete.
|
||
|
//
|
||
|
// The New function can be used to create a new client that talks directly
|
||
|
// to the API server.
|
||
|
//
|
||
|
// A common pattern in Kubernetes to read from a cache and write to the API
|
||
|
// server. This pattern is covered by the DelegatingClient type, which can
|
||
|
// be used to have a client whose Reader is different from the Writer.
|
||
|
//
|
||
|
// Options
|
||
|
//
|
||
|
// Many client operations in Kubernetes support options. These options are
|
||
|
// represented as variadic arguments at the end of a given method call.
|
||
|
// For instance, to use a label selector on list, you can call
|
||
|
// err := someReader.List(context.Background(), &podList, client.MatchingLabels{"somelabel": "someval"})
|
||
|
//
|
||
|
// Indexing
|
||
|
//
|
||
|
// Indexes may be added to caches using a FieldIndexer. This allows you to easily
|
||
|
// and efficiently look up objects with certain properties. You can then make
|
||
|
// use of the index by specifying a field selector on calls to List on the Reader
|
||
|
// corresponding to the given Cache.
|
||
|
//
|
||
|
// For instance, a Secret controller might have an index on the
|
||
|
// `.spec.volumes.secret.secretName` field in Pod objects, so that it could
|
||
|
// easily look up all pods that reference a given secret.
|
||
|
package client
|