mirror of
https://github.com/kubernetes-sigs/node-feature-discovery.git
synced 2024-12-14 11:57:51 +00:00
87b92f88ca
Implement detection of kubernetes namespace by reading file /var/run/secrets/kubernetes.io/serviceaccount/namespace Aa a fallback (if the file is not accessible) we take namespace from KUBERNETES_NAMESPACE environment variable. This is useful for e.g. testing and development where you might run nfd-worker directly from the command line on a host system.
35 lines
1.1 KiB
Go
35 lines
1.1 KiB
Go
/*
|
|
Copyright 2022 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 utils
|
|
|
|
import (
|
|
"os"
|
|
"strings"
|
|
)
|
|
|
|
// GetKubernetesNamespace returns the kubernetes namespace we're running under,
|
|
// or an empty string if the namespace cannot be determined.
|
|
func GetKubernetesNamespace() string {
|
|
const kubernetesNamespaceFilePath = "/var/run/secrets/kubernetes.io/serviceaccount/namespace"
|
|
if _, err := os.Stat(kubernetesNamespaceFilePath); err == nil {
|
|
data, err := os.ReadFile(kubernetesNamespaceFilePath)
|
|
if err == nil {
|
|
return strings.TrimSpace(string(data))
|
|
}
|
|
}
|
|
return os.Getenv("KUBERNETES_NAMESPACE")
|
|
}
|