sigs.k8s.io/cluster-api-provider-azure@v1.14.3/test/e2e/kubernetes/namespace/namespace.go (about)

     1  //go:build e2e
     2  // +build e2e
     3  
     4  /*
     5  Copyright 2020 The Kubernetes Authors.
     6  
     7  Licensed under the Apache License, Version 2.0 (the "License");
     8  you may not use this file except in compliance with the License.
     9  You may obtain a copy of the License at
    10  
    11      http://www.apache.org/licenses/LICENSE-2.0
    12  
    13  Unless required by applicable law or agreed to in writing, software
    14  distributed under the License is distributed on an "AS IS" BASIS,
    15  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    16  See the License for the specific language governing permissions and
    17  limitations under the License.
    18  */
    19  
    20  package namespace
    21  
    22  import (
    23  	"context"
    24  	"log"
    25  	"time"
    26  
    27  	. "github.com/onsi/gomega"
    28  	corev1 "k8s.io/api/core/v1"
    29  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    30  	"k8s.io/client-go/kubernetes"
    31  )
    32  
    33  const (
    34  	namespaceOperationTimeout             = 30 * time.Second
    35  	namespaceOperationSleepBetweenRetries = 3 * time.Second
    36  )
    37  
    38  // Create a namespace with the given name
    39  func Create(ctx context.Context, clientset *kubernetes.Clientset, name string, labels map[string]string) (*corev1.Namespace, error) {
    40  	ns := &corev1.Namespace{
    41  		ObjectMeta: metav1.ObjectMeta{
    42  			Name:   name,
    43  			Labels: labels,
    44  		},
    45  	}
    46  
    47  	var namespace *corev1.Namespace
    48  	Eventually(func(g Gomega) {
    49  		var err error
    50  		namespace, err = clientset.CoreV1().Namespaces().Create(ctx, ns, metav1.CreateOptions{})
    51  		if err != nil {
    52  			log.Printf("failed trying to create namespace (%s):%s\n", name, err.Error())
    53  		}
    54  		g.Expect(err).NotTo(HaveOccurred())
    55  	}, namespaceOperationTimeout, namespaceOperationSleepBetweenRetries).Should(Succeed())
    56  	return namespace, nil
    57  }
    58  
    59  // CreateNamespaceDeleteIfExist creates a namespace, deletes it first if it already exists
    60  func CreateNamespaceDeleteIfExist(ctx context.Context, clientset *kubernetes.Clientset, name string, labels map[string]string) (*corev1.Namespace, error) {
    61  	n, err := Get(ctx, clientset, name)
    62  	if err == nil {
    63  		// Delete existing namespace if exists to avoid dirty exit in last round of test
    64  		log.Printf("namespace %s already exist", n)
    65  		err := clientset.CoreV1().Namespaces().Delete(ctx, name, metav1.DeleteOptions{})
    66  		if err != nil {
    67  			log.Printf("Error trying to delete namespace (%s):%s\n", name, err.Error())
    68  			return nil, err
    69  		}
    70  	}
    71  	log.Printf("namespace %s does not exist, creating...", name)
    72  	return Create(ctx, clientset, name, labels)
    73  }
    74  
    75  // Get returns a namespace for with a given name
    76  func Get(ctx context.Context, clientset *kubernetes.Clientset, name string) (*corev1.Namespace, error) {
    77  	opts := metav1.GetOptions{}
    78  	namespace, err := clientset.CoreV1().Namespaces().Get(ctx, name, opts)
    79  	if err != nil {
    80  		log.Printf("failed trying to get namespace (%s):%s\n", name, err.Error())
    81  		return nil, err
    82  	}
    83  
    84  	return namespace, nil
    85  }