93 lines
3.2 KiB
Go
93 lines
3.2 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package common
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import (
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"fmt"
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"time"
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coordv1beta1 "k8s.io/api/coordination/v1beta1"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/kubernetes/test/e2e/framework"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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)
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var _ = framework.KubeDescribe("[Feature:NodeLease][NodeAlphaFeature:NodeLease]", func() {
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f := framework.NewDefaultFramework("node-lease-test")
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Context("when the NodeLease feature is enabled", func() {
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It("the Kubelet should create and update a lease in the kube-node-lease namespace", func() {
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leaseClient := f.ClientSet.CoordinationV1beta1().Leases(corev1.NamespaceNodeLease)
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var (
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err error
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lease *coordv1beta1.Lease
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)
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// check that lease for this Kubelet exists in the kube-node-lease namespace
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Eventually(func() error {
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lease, err = leaseClient.Get(framework.TestContext.NodeName, metav1.GetOptions{})
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if err != nil {
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return err
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}
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return nil
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}, 5*time.Minute, 5*time.Second).Should(BeNil())
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// check basic expectations for the lease
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Expect(expectLease(lease)).To(BeNil())
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// ensure that at least one lease renewal happens within the
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// lease duration by checking for a change to renew time
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Eventually(func() error {
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newLease, err := leaseClient.Get(framework.TestContext.NodeName, metav1.GetOptions{})
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if err != nil {
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return err
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}
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// check basic expectations for the latest lease
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if err := expectLease(newLease); err != nil {
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return err
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}
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// check that RenewTime has been updated on the latest lease
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newTime := (*newLease.Spec.RenewTime).Time
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oldTime := (*lease.Spec.RenewTime).Time
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if !newTime.After(oldTime) {
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return fmt.Errorf("new lease has time %v, which is not after old lease time %v", newTime, oldTime)
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}
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return nil
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}, time.Duration(*lease.Spec.LeaseDurationSeconds)*time.Second,
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time.Duration(*lease.Spec.LeaseDurationSeconds/3)*time.Second)
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})
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})
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})
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func expectLease(lease *coordv1beta1.Lease) error {
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// expect values for HolderIdentity, LeaseDurationSeconds, and RenewTime
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if lease.Spec.HolderIdentity == nil {
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return fmt.Errorf("Spec.HolderIdentity should not be nil")
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}
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if lease.Spec.LeaseDurationSeconds == nil {
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return fmt.Errorf("Spec.LeaseDurationSeconds should not be nil")
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}
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if lease.Spec.RenewTime == nil {
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return fmt.Errorf("Spec.RenewTime should not be nil")
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}
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// ensure that the HolderIdentity matches the node name
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if *lease.Spec.HolderIdentity != framework.TestContext.NodeName {
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return fmt.Errorf("Spec.HolderIdentity (%v) should match the node name (%v)", *lease.Spec.HolderIdentity, framework.TestContext.NodeName)
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}
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return nil
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}
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