forked from kubernetes/kops
/
kube_context.go
48 lines (42 loc) · 1.25 KB
/
kube_context.go
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package protokube
import (
"fmt"
"github.com/golang/glog"
"k8s.io/kubernetes/pkg/client/clientset_generated/release_1_3"
"k8s.io/kubernetes/pkg/client/unversioned/clientcmd"
"sync"
)
type KubernetesContext struct {
mutex sync.Mutex
client *release_1_3.Clientset
}
func NewKubernetesContext() *KubernetesContext {
return &KubernetesContext{}
}
func (c *KubernetesContext) KubernetesClient() (*release_1_3.Clientset, error) {
c.mutex.Lock()
defer c.mutex.Unlock()
if c.client == nil {
config := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(
clientcmd.NewDefaultClientConfigLoadingRules(),
&clientcmd.ConfigOverrides{})
clientConfig, err := config.ClientConfig()
if err != nil {
if clientcmd.IsEmptyConfig(err) {
glog.V(2).Infof("No client config found; will use default config")
clientConfig, err = clientcmd.DefaultClientConfig.ClientConfig()
if err != nil {
return nil, fmt.Errorf("cannot build default kube config settings: %v", err)
}
} else {
return nil, fmt.Errorf("cannot load kubecfg settings: %v", err)
}
}
k8sClient, err := release_1_3.NewForConfig(clientConfig)
if err != nil {
return nil, fmt.Errorf("cannot build kube client: %v", err)
}
c.client = k8sClient
}
return c.client, nil
}