daemonsets.go

Documentation: k8s.io/kubernetes/test/e2e/upgrades/apps

     1  /*
     2  Copyright 2017 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package apps
    18  
    19  import (
    20  	"context"
    21  
    22  	"github.com/onsi/ginkgo/v2"
    23  
    24  	appsv1 "k8s.io/api/apps/v1"
    25  	v1 "k8s.io/api/core/v1"
    26  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    27  	"k8s.io/apimachinery/pkg/util/wait"
    28  	"k8s.io/kubernetes/test/e2e/framework"
    29  	e2edaemonset "k8s.io/kubernetes/test/e2e/framework/daemonset"
    30  	"k8s.io/kubernetes/test/e2e/upgrades"
    31  )
    32  
    33  // DaemonSetUpgradeTest tests that a DaemonSet is running before and after
    34  // a cluster upgrade.
    35  type DaemonSetUpgradeTest struct {
    36  	daemonSet *appsv1.DaemonSet
    37  }
    38  
    39  // Name returns the tracking name of the test.
    40  func (DaemonSetUpgradeTest) Name() string { return "[sig-apps] daemonset-upgrade" }
    41  
    42  // Setup creates a DaemonSet and verifies that it's running
    43  func (t *DaemonSetUpgradeTest) Setup(ctx context.Context, f *framework.Framework) {
    44  	daemonSetName := "ds1"
    45  	labelSet := map[string]string{"ds-name": daemonSetName}
    46  	image := framework.ServeHostnameImage
    47  
    48  	ns := f.Namespace
    49  
    50  	t.daemonSet = e2edaemonset.NewDaemonSet(daemonSetName, image, labelSet, nil, nil, []v1.ContainerPort{{ContainerPort: 9376}}, "serve-hostname")
    51  	t.daemonSet.Spec.Template.Spec.Tolerations = []v1.Toleration{
    52  		{Operator: v1.TolerationOpExists},
    53  	}
    54  
    55  	ginkgo.By("Creating a DaemonSet")
    56  	var err error
    57  	if t.daemonSet, err = f.ClientSet.AppsV1().DaemonSets(ns.Name).Create(ctx, t.daemonSet, metav1.CreateOptions{}); err != nil {
    58  		framework.Failf("unable to create test DaemonSet %s: %v", t.daemonSet.Name, err)
    59  	}
    60  
    61  	ginkgo.By("Waiting for DaemonSet pods to become ready")
    62  	err = wait.PollWithContext(ctx, framework.Poll, framework.PodStartTimeout, func(ctx context.Context) (bool, error) {
    63  		return e2edaemonset.CheckRunningOnAllNodes(ctx, f, t.daemonSet)
    64  	})
    65  	framework.ExpectNoError(err)
    66  
    67  	ginkgo.By("Validating the DaemonSet after creation")
    68  	t.validateRunningDaemonSet(ctx, f)
    69  }
    70  
    71  // Test waits until the upgrade has completed and then verifies that the DaemonSet
    72  // is still running
    73  func (t *DaemonSetUpgradeTest) Test(ctx context.Context, f *framework.Framework, done <-chan struct{}, upgrade upgrades.UpgradeType) {
    74  	ginkgo.By("Waiting for upgrade to complete before re-validating DaemonSet")
    75  	<-done
    76  
    77  	ginkgo.By("validating the DaemonSet is still running after upgrade")
    78  	t.validateRunningDaemonSet(ctx, f)
    79  }
    80  
    81  // Teardown cleans up any remaining resources.
    82  func (t *DaemonSetUpgradeTest) Teardown(ctx context.Context, f *framework.Framework) {
    83  	// rely on the namespace deletion to clean up everything
    84  }
    85  
    86  func (t *DaemonSetUpgradeTest) validateRunningDaemonSet(ctx context.Context, f *framework.Framework) {
    87  	ginkgo.By("confirming the DaemonSet pods are running on all expected nodes")
    88  	res, err := e2edaemonset.CheckRunningOnAllNodes(ctx, f, t.daemonSet)
    89  	framework.ExpectNoError(err)
    90  	if !res {
    91  		framework.Failf("expected DaemonSet pod to be running on all nodes, it was not")
    92  	}
    93  
    94  	// DaemonSet resource itself should be good
    95  	ginkgo.By("confirming the DaemonSet resource is in a good state")
    96  	err = e2edaemonset.CheckDaemonStatus(ctx, f, t.daemonSet.Name)
    97  	framework.ExpectNoError(err)
    98  }
    99
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