mirror of https://github.com/kubernetes/kops.git
126 lines
3.3 KiB
Go
126 lines
3.3 KiB
Go
/*
|
|
Copyright 2017 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 cmd
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"k8s.io/cli-runtime/pkg/genericclioptions"
|
|
"k8s.io/client-go/dynamic"
|
|
"k8s.io/client-go/kubernetes"
|
|
"k8s.io/client-go/rest"
|
|
"k8s.io/client-go/restmapper"
|
|
|
|
_ "k8s.io/client-go/plugin/pkg/client/auth"
|
|
|
|
certmanager "github.com/jetstack/cert-manager/pkg/client/clientset/versioned"
|
|
)
|
|
|
|
type Factory interface {
|
|
KubernetesClient() (kubernetes.Interface, error)
|
|
CertManagerClient() (certmanager.Interface, error)
|
|
RESTMapper() (*restmapper.DeferredDiscoveryRESTMapper, error)
|
|
DynamicClient() (dynamic.Interface, error)
|
|
}
|
|
|
|
type DefaultFactory struct {
|
|
ConfigFlags genericclioptions.ConfigFlags
|
|
|
|
kubernetesClient kubernetes.Interface
|
|
certManagerClient certmanager.Interface
|
|
|
|
cachedRESTConfig *rest.Config
|
|
dynamicClient dynamic.Interface
|
|
restMapper *restmapper.DeferredDiscoveryRESTMapper
|
|
}
|
|
|
|
var _ Factory = &DefaultFactory{}
|
|
|
|
func (f *DefaultFactory) restConfig() (*rest.Config, error) {
|
|
if f.cachedRESTConfig == nil {
|
|
restConfig, err := f.ConfigFlags.ToRESTConfig()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("cannot load kubecfg settings: %w", err)
|
|
}
|
|
f.cachedRESTConfig = restConfig
|
|
}
|
|
return f.cachedRESTConfig, nil
|
|
}
|
|
|
|
func (f *DefaultFactory) KubernetesClient() (kubernetes.Interface, error) {
|
|
if f.kubernetesClient == nil {
|
|
restConfig, err := f.restConfig()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
k8sClient, err := kubernetes.NewForConfig(restConfig)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("cannot build kube client: %w", err)
|
|
}
|
|
f.kubernetesClient = k8sClient
|
|
}
|
|
|
|
return f.kubernetesClient, nil
|
|
}
|
|
|
|
func (f *DefaultFactory) DynamicClient() (dynamic.Interface, error) {
|
|
if f.dynamicClient == nil {
|
|
restConfig, err := f.restConfig()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("cannot load kubecfg settings: %w", err)
|
|
}
|
|
dynamicClient, err := dynamic.NewForConfig(restConfig)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("cannot build dynamicClient client: %v", err)
|
|
}
|
|
f.dynamicClient = dynamicClient
|
|
}
|
|
|
|
return f.dynamicClient, nil
|
|
}
|
|
|
|
func (f *DefaultFactory) CertManagerClient() (certmanager.Interface, error) {
|
|
if f.certManagerClient == nil {
|
|
restConfig, err := f.restConfig()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
certManagerClient, err := certmanager.NewForConfig(restConfig)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("cannot build kube client: %v", err)
|
|
}
|
|
f.certManagerClient = certManagerClient
|
|
}
|
|
|
|
return f.certManagerClient, nil
|
|
}
|
|
|
|
func (f *DefaultFactory) RESTMapper() (*restmapper.DeferredDiscoveryRESTMapper, error) {
|
|
if f.restMapper == nil {
|
|
discoveryClient, err := f.ConfigFlags.ToDiscoveryClient()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
restMapper := restmapper.NewDeferredDiscoveryRESTMapper(discoveryClient)
|
|
|
|
f.restMapper = restMapper
|
|
}
|
|
|
|
return f.restMapper, nil
|
|
}
|