mirror of https://github.com/k3s-io/k3s
129 lines
3.8 KiB
Go
129 lines
3.8 KiB
Go
/*
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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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// this file contains factories with no other dependencies
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package util
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import (
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"os"
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"k8s.io/apimachinery/pkg/api/meta"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/client-go/dynamic"
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scaleclient "k8s.io/client-go/scale"
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"k8s.io/kubernetes/pkg/kubectl"
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"k8s.io/kubernetes/pkg/kubectl/plugins"
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"k8s.io/kubernetes/pkg/kubectl/resource"
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)
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type ring2Factory struct {
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clientAccessFactory ClientAccessFactory
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objectMappingFactory ObjectMappingFactory
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}
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func NewBuilderFactory(clientAccessFactory ClientAccessFactory, objectMappingFactory ObjectMappingFactory) BuilderFactory {
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f := &ring2Factory{
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clientAccessFactory: clientAccessFactory,
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objectMappingFactory: objectMappingFactory,
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}
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return f
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}
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// NewBuilder returns a new resource builder for structured api objects.
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func (f *ring2Factory) NewBuilder() *resource.Builder {
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clientMapperFunc := resource.ClientMapperFunc(f.objectMappingFactory.ClientForMapping)
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mapper := f.objectMappingFactory.RESTMapper()
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unstructuredClientMapperFunc := resource.ClientMapperFunc(f.objectMappingFactory.UnstructuredClientForMapping)
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categoryExpander := f.objectMappingFactory.CategoryExpander()
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return resource.NewBuilder(
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&resource.Mapper{
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RESTMapper: mapper,
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ClientMapper: clientMapperFunc,
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Decoder: InternalVersionDecoder(),
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},
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&resource.Mapper{
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RESTMapper: mapper,
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ClientMapper: unstructuredClientMapperFunc,
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Decoder: unstructured.UnstructuredJSONScheme,
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},
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categoryExpander,
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)
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}
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// PluginLoader loads plugins from a path set by the KUBECTL_PLUGINS_PATH env var.
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// If this env var is not set, it defaults to
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// "~/.kube/plugins", plus
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// "./kubectl/plugins" directory under the "data dir" directory specified by the XDG
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// system directory structure spec for the given platform.
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func (f *ring2Factory) PluginLoader() plugins.PluginLoader {
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if len(os.Getenv("KUBECTL_PLUGINS_PATH")) > 0 {
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return plugins.KubectlPluginsPathPluginLoader()
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}
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return plugins.TolerantMultiPluginLoader{
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plugins.XDGDataDirsPluginLoader(),
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plugins.UserDirPluginLoader(),
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}
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}
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func (f *ring2Factory) PluginRunner() plugins.PluginRunner {
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return &plugins.ExecPluginRunner{}
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}
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func (f *ring2Factory) ScaleClient() (scaleclient.ScalesGetter, error) {
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discoClient, err := f.clientAccessFactory.DiscoveryClient()
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if err != nil {
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return nil, err
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}
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restClient, err := f.clientAccessFactory.RESTClient()
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if err != nil {
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return nil, err
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}
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resolver := scaleclient.NewDiscoveryScaleKindResolver(discoClient)
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mapper := f.objectMappingFactory.RESTMapper()
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return scaleclient.New(restClient, mapper, dynamic.LegacyAPIPathResolverFunc, resolver), nil
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}
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func (f *ring2Factory) Scaler() (kubectl.Scaler, error) {
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scalesGetter, err := f.ScaleClient()
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if err != nil {
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return nil, err
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}
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return kubectl.NewScaler(scalesGetter), nil
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}
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func (f *ring2Factory) Reaper(mapping *meta.RESTMapping) (kubectl.Reaper, error) {
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clientset, clientsetErr := f.clientAccessFactory.ClientSet()
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if clientsetErr != nil {
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return nil, clientsetErr
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}
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scaler, err := f.ScaleClient()
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if err != nil {
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return nil, err
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}
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reaper, reaperErr := kubectl.ReaperFor(mapping.GroupVersionKind.GroupKind(), clientset, scaler)
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if kubectl.IsNoSuchReaperError(reaperErr) {
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return nil, reaperErr
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}
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return reaper, reaperErr
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}
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