mirror of https://github.com/kubernetes/kops.git
66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
/*
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Copyright 2019 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 protokube
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import (
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"fmt"
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"sync"
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"k8s.io/client-go/kubernetes"
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"k8s.io/client-go/tools/clientcmd"
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)
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// KubernetesContext is the kubernetes context
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type KubernetesContext struct {
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mutex sync.Mutex
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k8sClient kubernetes.Interface
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}
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// NewKubernetesContext returns a new KubernetesContext
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func NewKubernetesContext() *KubernetesContext {
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return &KubernetesContext{}
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}
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// KubernetesClient returns a new kubernetes api client
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func (c *KubernetesContext) KubernetesClient() (kubernetes.Interface, error) {
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c.mutex.Lock()
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defer c.mutex.Unlock()
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if c.k8sClient == nil {
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loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
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loadingRules.DefaultClientConfig = &clientcmd.DefaultClientConfig
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configOverrides := &clientcmd.ConfigOverrides{
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ClusterDefaults: clientcmd.ClusterDefaults,
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}
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kubeConfig := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, configOverrides)
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config, err := kubeConfig.ClientConfig()
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if err != nil {
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return nil, fmt.Errorf("cannot load kubecfg settings: %v", err)
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}
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k8sClient, err := kubernetes.NewForConfig(config)
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if err != nil {
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return nil, fmt.Errorf("cannot build kube client: %v", err)
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}
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c.k8sClient = k8sClient
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}
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return c.k8sClient, nil
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}
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