/
systemid.go
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/
systemid.go
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/*
Copyright The CloudNativePG Contributors
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 utils
import (
"context"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/client"
)
var systemUID string
// DetectKubeSystemUID retrieves the UID of the kube-system namespace of the containing cluster
func DetectKubeSystemUID(ctx context.Context, kubeClient client.Client) error {
ns := &corev1.Namespace{}
if err := kubeClient.Get(ctx, types.NamespacedName{Name: "kube-system"}, ns); err != nil {
return err
}
systemUID = string(ns.UID)
return nil
}
// GetKubeSystemUID returns the uid of the kube-system namespace
func GetKubeSystemUID() string {
return systemUID
}