120 lines
3.9 KiB
Go
120 lines
3.9 KiB
Go
/*
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Copyright 2017 the Velero contributors.
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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 client
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import (
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"context"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/watch"
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"k8s.io/client-go/dynamic"
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)
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// DynamicFactory contains methods for retrieving dynamic clients for GroupVersionResources and
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// GroupVersionKinds.
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type DynamicFactory interface {
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// ClientForGroupVersionResource returns a Dynamic client for the given group/version
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// and resource for the given namespace.
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ClientForGroupVersionResource(gv schema.GroupVersion, resource metav1.APIResource, namespace string) (Dynamic, error)
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}
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// dynamicFactory implements DynamicFactory.
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type dynamicFactory struct {
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dynamicClient dynamic.Interface
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}
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// NewDynamicFactory returns a new ClientPool-based dynamic factory.
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func NewDynamicFactory(dynamicClient dynamic.Interface) DynamicFactory {
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return &dynamicFactory{dynamicClient: dynamicClient}
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}
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func (f *dynamicFactory) ClientForGroupVersionResource(gv schema.GroupVersion, resource metav1.APIResource, namespace string) (Dynamic, error) {
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return &dynamicResourceClient{
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resourceClient: f.dynamicClient.Resource(gv.WithResource(resource.Name)).Namespace(namespace),
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}, nil
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}
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// Creator creates an object.
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type Creator interface {
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// Create creates an object.
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Create(obj *unstructured.Unstructured) (*unstructured.Unstructured, error)
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}
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// Lister lists objects.
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type Lister interface {
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// List lists all the objects of a given resource.
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List(metav1.ListOptions) (*unstructured.UnstructuredList, error)
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}
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// Watcher watches objects.
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type Watcher interface {
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// Watch watches for changes to objects of a given resource.
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Watch(metav1.ListOptions) (watch.Interface, error)
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}
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// Getter gets an object.
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type Getter interface {
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// Get fetches an object by name.
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Get(name string, opts metav1.GetOptions) (*unstructured.Unstructured, error)
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}
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// Patcher patches an object.
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type Patcher interface {
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//Patch patches the named object using the provided patch bytes, which are expected to be in JSON merge patch format. The patched object is returned.
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Patch(name string, data []byte) (*unstructured.Unstructured, error)
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}
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// Dynamic contains client methods that Velero needs for backing up and restoring resources.
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type Dynamic interface {
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Creator
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Lister
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Watcher
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Getter
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Patcher
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}
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// dynamicResourceClient implements Dynamic.
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type dynamicResourceClient struct {
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resourceClient dynamic.ResourceInterface
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}
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var _ Dynamic = &dynamicResourceClient{}
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func (d *dynamicResourceClient) Create(obj *unstructured.Unstructured) (*unstructured.Unstructured, error) {
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return d.resourceClient.Create(context.TODO(), obj, metav1.CreateOptions{})
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}
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func (d *dynamicResourceClient) List(options metav1.ListOptions) (*unstructured.UnstructuredList, error) {
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return d.resourceClient.List(context.TODO(), options)
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}
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func (d *dynamicResourceClient) Watch(options metav1.ListOptions) (watch.Interface, error) {
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return d.resourceClient.Watch(context.TODO(), options)
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}
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func (d *dynamicResourceClient) Get(name string, opts metav1.GetOptions) (*unstructured.Unstructured, error) {
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return d.resourceClient.Get(context.TODO(), name, opts)
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}
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func (d *dynamicResourceClient) Patch(name string, data []byte) (*unstructured.Unstructured, error) {
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return d.resourceClient.Patch(context.TODO(), name, types.MergePatchType, data, metav1.PatchOptions{})
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}
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