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kubelet.go
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kubelet.go
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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package cluster
import (
"context"
k8s "k8s.io/client-go/kubernetes"
"github.com/siderolabs/talos/pkg/kubernetes"
)
// KubernetesFromKubeletClient provides Kubernetes client built from local kubelet config.
type KubernetesFromKubeletClient struct {
KubeHelper *kubernetes.Client
clientset *k8s.Clientset
}
// K8sClient builds Kubernetes client from local kubelet config.
//
// Kubernetes client instance is cached.
func (k *KubernetesFromKubeletClient) K8sClient(ctx context.Context) (*k8s.Clientset, error) {
if k.clientset != nil {
return k.clientset, nil
}
var err error
if k.KubeHelper, err = kubernetes.NewClientFromKubeletKubeconfig(); err != nil {
return nil, err
}
k.clientset = k.KubeHelper.Clientset
return k.clientset, nil
}
// K8sHelper returns wrapper around K8sClient.
func (k *KubernetesFromKubeletClient) K8sHelper(ctx context.Context) (*kubernetes.Client, error) {
if k.KubeHelper != nil {
return k.KubeHelper, nil
}
_, err := k.K8sClient(ctx)
if err != nil {
return nil, err
}
return k.KubeHelper, nil
}
// K8sClose closes Kubernetes client.
func (k *KubernetesFromKubeletClient) K8sClose() error {
if k.KubeHelper == nil {
return nil
}
return k.KubeHelper.Close()
}