kubernetes/pkg/master/client_util.go
Chao Xu 83d535aa6c Client ca post start hook now checks if the system namespace already exists
before creating it.

This avoids apiserver crashloops if a webhook rejects namespace
creation when the apiserver is rebooted.
2018-01-30 16:19:33 -08:00

43 lines
1.2 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 master
import (
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
api "k8s.io/kubernetes/pkg/apis/core"
coreclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/core/internalversion"
)
func createNamespaceIfNeeded(c coreclient.NamespacesGetter, ns string) error {
if _, err := c.Namespaces().Get(ns, metav1.GetOptions{}); err == nil {
// the namespace already exists
return nil
}
newNs := &api.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: ns,
Namespace: "",
},
}
_, err := c.Namespaces().Create(newNs)
if err != nil && errors.IsAlreadyExists(err) {
err = nil
}
return err
}