kubernetes namespace 源码
kubernetes namespace 代码
文件路径：/staging/src/k8s.io/pod-security-admission/admission/namespace.go
/*
Copyright 2021 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 admission
import (
"context"
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
corev1listers "k8s.io/client-go/listers/core/v1"
)
func NamespaceGetterFromClient(client kubernetes.Interface) NamespaceGetter {
return &namespaceGetter{client: client}
}
func NamespaceGetterFromListerAndClient(lister corev1listers.NamespaceLister, client kubernetes.Interface) NamespaceGetter {
return &namespaceGetter{lister: lister, client: client}
}
type namespaceGetter struct {
lister corev1listers.NamespaceLister
client kubernetes.Interface
}
func (n *namespaceGetter) GetNamespace(ctx context.Context, name string) (namespace *corev1.Namespace, err error) {
if n.lister != nil {
namespace, err := n.lister.Get(name)
if err == nil || !apierrors.IsNotFound(err) {
return namespace, err
}
}
return n.client.CoreV1().Namespaces().Get(ctx, name, metav1.GetOptions{})
}
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