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Updated vednor files
This commit is contained in:
Serguei Bezverkhi
340
vendor/k8s.io/client-go/dynamic/client.go
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vendored
340
vendor/k8s.io/client-go/dynamic/client.go
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/*
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Copyright 2016 The Kubernetes 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 dynamic provides a client interface to arbitrary Kubernetes
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// APIs that exposes common high level operations and exposes common
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// metadata.
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package dynamic
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import (
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"encoding/json"
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"errors"
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"io"
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"net/url"
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"strings"
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"k8s.io/api/core/v1"
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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/conversion/queryparams"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/runtime/serializer"
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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/kubernetes/scheme"
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restclient "k8s.io/client-go/rest"
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"k8s.io/client-go/util/flowcontrol"
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)
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// Interface is a Kubernetes client that allows you to access metadata
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// and manipulate metadata of a Kubernetes API group.
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type Interface interface {
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// GetRateLimiter returns the rate limiter for this client.
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GetRateLimiter() flowcontrol.RateLimiter
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// Resource returns an API interface to the specified resource for this client's
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// group and version. If resource is not a namespaced resource, then namespace
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// is ignored. The ResourceInterface inherits the paramater codec of this client.
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Resource(resource *metav1.APIResource, namespace string) ResourceInterface
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// ParameterCodec returns a client with the provided parameter codec.
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ParameterCodec(parameterCodec runtime.ParameterCodec) Interface
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}
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// ResourceInterface is an API interface to a specific resource under a
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// dynamic client.
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type ResourceInterface interface {
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// List returns a list of objects for this resource.
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List(opts metav1.ListOptions) (runtime.Object, error)
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// Get gets the resource with the specified name.
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Get(name string, opts metav1.GetOptions) (*unstructured.Unstructured, error)
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// Delete deletes the resource with the specified name.
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Delete(name string, opts *metav1.DeleteOptions) error
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// DeleteCollection deletes a collection of objects.
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DeleteCollection(deleteOptions *metav1.DeleteOptions, listOptions metav1.ListOptions) error
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// Create creates the provided resource.
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Create(obj *unstructured.Unstructured) (*unstructured.Unstructured, error)
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// Update updates the provided resource.
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Update(obj *unstructured.Unstructured) (*unstructured.Unstructured, error)
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// Watch returns a watch.Interface that watches the resource.
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Watch(opts metav1.ListOptions) (watch.Interface, error)
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// Patch patches the provided resource.
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Patch(name string, pt types.PatchType, data []byte) (*unstructured.Unstructured, error)
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}
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// Client is a Kubernetes client that allows you to access metadata
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// and manipulate metadata of a Kubernetes API group, and implements Interface.
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type Client struct {
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cl *restclient.RESTClient
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parameterCodec runtime.ParameterCodec
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}
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// NewClient returns a new client based on the passed in config. The
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// codec is ignored, as the dynamic client uses it's own codec.
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func NewClient(conf *restclient.Config) (*Client, error) {
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// avoid changing the original config
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confCopy := *conf
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conf = &confCopy
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contentConfig := ContentConfig()
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contentConfig.GroupVersion = conf.GroupVersion
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if conf.NegotiatedSerializer != nil {
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contentConfig.NegotiatedSerializer = conf.NegotiatedSerializer
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}
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conf.ContentConfig = contentConfig
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if conf.APIPath == "" {
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conf.APIPath = "/api"
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}
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if len(conf.UserAgent) == 0 {
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conf.UserAgent = restclient.DefaultKubernetesUserAgent()
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}
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cl, err := restclient.RESTClientFor(conf)
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if err != nil {
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return nil, err
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}
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return &Client{cl: cl}, nil
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}
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// GetRateLimiter returns rate limier.
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func (c *Client) GetRateLimiter() flowcontrol.RateLimiter {
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return c.cl.GetRateLimiter()
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}
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// Resource returns an API interface to the specified resource for this client's
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// group and version. If resource is not a namespaced resource, then namespace
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// is ignored. The ResourceInterface inherits the parameter codec of c.
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func (c *Client) Resource(resource *metav1.APIResource, namespace string) ResourceInterface {
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return &ResourceClient{
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cl: c.cl,
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resource: resource,
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ns: namespace,
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parameterCodec: c.parameterCodec,
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}
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}
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// ParameterCodec returns a client with the provided parameter codec.
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func (c *Client) ParameterCodec(parameterCodec runtime.ParameterCodec) Interface {
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return &Client{
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cl: c.cl,
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parameterCodec: parameterCodec,
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}
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}
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// ResourceClient is an API interface to a specific resource under a
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// dynamic client, and implements ResourceInterface.
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type ResourceClient struct {
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cl *restclient.RESTClient
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resource *metav1.APIResource
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ns string
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parameterCodec runtime.ParameterCodec
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}
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// List returns a list of objects for this resource.
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func (rc *ResourceClient) List(opts metav1.ListOptions) (runtime.Object, error) {
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parameterEncoder := rc.parameterCodec
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if parameterEncoder == nil {
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parameterEncoder = defaultParameterEncoder
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}
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return rc.cl.Get().
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NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
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Resource(rc.resource.Name).
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VersionedParams(&opts, parameterEncoder).
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Do().
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Get()
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}
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// Get gets the resource with the specified name.
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func (rc *ResourceClient) Get(name string, opts metav1.GetOptions) (*unstructured.Unstructured, error) {
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parameterEncoder := rc.parameterCodec
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if parameterEncoder == nil {
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parameterEncoder = defaultParameterEncoder
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}
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result := new(unstructured.Unstructured)
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err := rc.cl.Get().
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NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
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Resource(rc.resource.Name).
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VersionedParams(&opts, parameterEncoder).
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Name(name).
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Do().
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Into(result)
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return result, err
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}
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// Delete deletes the resource with the specified name.
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func (rc *ResourceClient) Delete(name string, opts *metav1.DeleteOptions) error {
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return rc.cl.Delete().
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NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
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Resource(rc.resource.Name).
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Name(name).
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Body(opts).
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Do().
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Error()
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}
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// DeleteCollection deletes a collection of objects.
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func (rc *ResourceClient) DeleteCollection(deleteOptions *metav1.DeleteOptions, listOptions metav1.ListOptions) error {
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parameterEncoder := rc.parameterCodec
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if parameterEncoder == nil {
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parameterEncoder = defaultParameterEncoder
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}
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return rc.cl.Delete().
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NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
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Resource(rc.resource.Name).
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VersionedParams(&listOptions, parameterEncoder).
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Body(deleteOptions).
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Do().
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Error()
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}
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// Create creates the provided resource.
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func (rc *ResourceClient) Create(obj *unstructured.Unstructured) (*unstructured.Unstructured, error) {
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result := new(unstructured.Unstructured)
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err := rc.cl.Post().
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NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
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Resource(rc.resource.Name).
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Body(obj).
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Do().
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Into(result)
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return result, err
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}
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// Update updates the provided resource.
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func (rc *ResourceClient) Update(obj *unstructured.Unstructured) (*unstructured.Unstructured, error) {
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result := new(unstructured.Unstructured)
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if len(obj.GetName()) == 0 {
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return result, errors.New("object missing name")
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}
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err := rc.cl.Put().
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NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
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Resource(rc.resource.Name).
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Name(obj.GetName()).
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Body(obj).
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Do().
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Into(result)
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return result, err
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}
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// Watch returns a watch.Interface that watches the resource.
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func (rc *ResourceClient) Watch(opts metav1.ListOptions) (watch.Interface, error) {
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parameterEncoder := rc.parameterCodec
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if parameterEncoder == nil {
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parameterEncoder = defaultParameterEncoder
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}
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opts.Watch = true
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return rc.cl.Get().
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NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
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Resource(rc.resource.Name).
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VersionedParams(&opts, parameterEncoder).
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Watch()
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}
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func (rc *ResourceClient) Patch(name string, pt types.PatchType, data []byte) (*unstructured.Unstructured, error) {
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result := new(unstructured.Unstructured)
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err := rc.cl.Patch(pt).
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NamespaceIfScoped(rc.ns, rc.resource.Namespaced).
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Resource(rc.resource.Name).
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Name(name).
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Body(data).
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Do().
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Into(result)
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return result, err
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}
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// dynamicCodec is a codec that wraps the standard unstructured codec
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// with special handling for Status objects.
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type dynamicCodec struct{}
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func (dynamicCodec) Decode(data []byte, gvk *schema.GroupVersionKind, obj runtime.Object) (runtime.Object, *schema.GroupVersionKind, error) {
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obj, gvk, err := unstructured.UnstructuredJSONScheme.Decode(data, gvk, obj)
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if err != nil {
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return nil, nil, err
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}
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if _, ok := obj.(*metav1.Status); !ok && strings.ToLower(gvk.Kind) == "status" {
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obj = &metav1.Status{}
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err := json.Unmarshal(data, obj)
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if err != nil {
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return nil, nil, err
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}
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}
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return obj, gvk, nil
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}
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func (dynamicCodec) Encode(obj runtime.Object, w io.Writer) error {
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return unstructured.UnstructuredJSONScheme.Encode(obj, w)
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}
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// ContentConfig returns a restclient.ContentConfig for dynamic types.
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func ContentConfig() restclient.ContentConfig {
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var jsonInfo runtime.SerializerInfo
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// TODO: scheme.Codecs here should become "pkg/apis/server/scheme" which is the minimal core you need
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// to talk to a kubernetes server
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for _, info := range scheme.Codecs.SupportedMediaTypes() {
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if info.MediaType == runtime.ContentTypeJSON {
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jsonInfo = info
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break
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}
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}
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jsonInfo.Serializer = dynamicCodec{}
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jsonInfo.PrettySerializer = nil
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return restclient.ContentConfig{
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AcceptContentTypes: runtime.ContentTypeJSON,
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ContentType: runtime.ContentTypeJSON,
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NegotiatedSerializer: serializer.NegotiatedSerializerWrapper(jsonInfo),
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}
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}
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// paramaterCodec is a codec converts an API object to query
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// parameters without trying to convert to the target version.
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type parameterCodec struct{}
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func (parameterCodec) EncodeParameters(obj runtime.Object, to schema.GroupVersion) (url.Values, error) {
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return queryparams.Convert(obj)
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}
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func (parameterCodec) DecodeParameters(parameters url.Values, from schema.GroupVersion, into runtime.Object) error {
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return errors.New("DecodeParameters not implemented on dynamic parameterCodec")
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}
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var defaultParameterEncoder runtime.ParameterCodec = parameterCodec{}
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type versionedParameterEncoderWithV1Fallback struct{}
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func (versionedParameterEncoderWithV1Fallback) EncodeParameters(obj runtime.Object, to schema.GroupVersion) (url.Values, error) {
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ret, err := scheme.ParameterCodec.EncodeParameters(obj, to)
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if err != nil && runtime.IsNotRegisteredError(err) {
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// fallback to v1
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return scheme.ParameterCodec.EncodeParameters(obj, v1.SchemeGroupVersion)
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}
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return ret, err
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}
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func (versionedParameterEncoderWithV1Fallback) DecodeParameters(parameters url.Values, from schema.GroupVersion, into runtime.Object) error {
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return errors.New("DecodeParameters not implemented on versionedParameterEncoderWithV1Fallback")
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}
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// VersionedParameterEncoderWithV1Fallback is useful for encoding query
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// parameters for custom resources. It tries to convert object to the
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// specified version before converting it to query parameters, and falls back to
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// converting to v1 if the object is not registered in the specified version.
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// For the record, currently API server always treats query parameters sent to a
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// custom resource endpoint as v1.
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var VersionedParameterEncoderWithV1Fallback runtime.ParameterCodec = versionedParameterEncoderWithV1Fallback{}
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