github.phpd.cn/cilium/cilium@v1.6.12/pkg/k8s/utils/utils.go (about)

     1  // Copyright 2018 Authors of Cilium
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package utils
    16  
    17  import (
    18  	"k8s.io/api/core/v1"
    19  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    20  	"k8s.io/kubernetes/pkg/kubelet/types"
    21  )
    22  
    23  // ExtractNamespace extracts the namespace of ObjectMeta.
    24  func ExtractNamespace(np metav1.Object) string {
    25  	ns := np.GetNamespace()
    26  	if ns == "" {
    27  		return v1.NamespaceDefault
    28  	}
    29  	return ns
    30  }
    31  
    32  // GetObjNamespaceName returns the object's namespace and name.
    33  func GetObjNamespaceName(obj metav1.Object) string {
    34  	return ExtractNamespace(obj) + "/" + obj.GetName()
    35  }
    36  
    37  // GetObjUID returns the object's namespace and name.
    38  func GetObjUID(obj metav1.Object) string {
    39  	return GetObjNamespaceName(obj) + "/" + string(obj.GetUID())
    40  }
    41  
    42  // IsInfraContainer returns true if the given set of labels represent a infra
    43  // container.
    44  func IsInfraContainer(labels map[string]string) bool {
    45  	return labels[types.KubernetesContainerNameLabel] == "POD"
    46  
    47  }