mirror of
https://github.com/ceph/ceph-csi.git
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113 lines
3.8 KiB
Go
113 lines
3.8 KiB
Go
/*
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Copyright 2017 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 upgrades
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import (
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"k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/kubernetes/test/e2e/framework"
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. "github.com/onsi/ginkgo"
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)
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// ServiceUpgradeTest tests that a service is available before and
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// after a cluster upgrade. During a master-only upgrade, it will test
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// that a service remains available during the upgrade.
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type ServiceUpgradeTest struct {
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jig *framework.ServiceTestJig
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tcpService *v1.Service
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tcpIngressIP string
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svcPort int
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}
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func (ServiceUpgradeTest) Name() string { return "service-upgrade" }
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func shouldTestPDBs() bool { return framework.ProviderIs("gce", "gke") }
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// Setup creates a service with a load balancer and makes sure it's reachable.
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func (t *ServiceUpgradeTest) Setup(f *framework.Framework) {
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serviceName := "service-test"
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jig := framework.NewServiceTestJig(f.ClientSet, serviceName)
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ns := f.Namespace
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By("creating a TCP service " + serviceName + " with type=LoadBalancer in namespace " + ns.Name)
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tcpService := jig.CreateTCPServiceOrFail(ns.Name, func(s *v1.Service) {
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s.Spec.Type = v1.ServiceTypeLoadBalancer
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})
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tcpService = jig.WaitForLoadBalancerOrFail(ns.Name, tcpService.Name, framework.LoadBalancerCreateTimeoutDefault)
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jig.SanityCheckService(tcpService, v1.ServiceTypeLoadBalancer)
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// Get info to hit it with
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tcpIngressIP := framework.GetIngressPoint(&tcpService.Status.LoadBalancer.Ingress[0])
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svcPort := int(tcpService.Spec.Ports[0].Port)
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By("creating pod to be part of service " + serviceName)
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rc := jig.RunOrFail(ns.Name, jig.AddRCAntiAffinity)
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if shouldTestPDBs() {
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By("creating a PodDisruptionBudget to cover the ReplicationController")
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jig.CreatePDBOrFail(ns.Name, rc)
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}
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// Hit it once before considering ourselves ready
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By("hitting the pod through the service's LoadBalancer")
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jig.TestReachableHTTP(tcpIngressIP, svcPort, framework.LoadBalancerLagTimeoutDefault)
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t.jig = jig
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t.tcpService = tcpService
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t.tcpIngressIP = tcpIngressIP
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t.svcPort = svcPort
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}
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// Test runs a connectivity check to the service.
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func (t *ServiceUpgradeTest) Test(f *framework.Framework, done <-chan struct{}, upgrade UpgradeType) {
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switch upgrade {
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case MasterUpgrade:
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t.test(f, done, true)
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case NodeUpgrade:
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// Node upgrades should test during disruption only on GCE/GKE for now.
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t.test(f, done, shouldTestPDBs())
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default:
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t.test(f, done, false)
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}
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}
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// Teardown cleans up any remaining resources.
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func (t *ServiceUpgradeTest) Teardown(f *framework.Framework) {
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// rely on the namespace deletion to clean up everything
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}
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func (t *ServiceUpgradeTest) test(f *framework.Framework, done <-chan struct{}, testDuringDisruption bool) {
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if testDuringDisruption {
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// Continuous validation
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By("continuously hitting the pod through the service's LoadBalancer")
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wait.Until(func() {
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t.jig.TestReachableHTTP(t.tcpIngressIP, t.svcPort, framework.LoadBalancerLagTimeoutDefault)
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}, framework.Poll, done)
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} else {
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// Block until upgrade is done
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By("waiting for upgrade to finish without checking if service remains up")
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<-done
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}
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// Sanity check and hit it once more
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By("hitting the pod through the service's LoadBalancer")
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t.jig.TestReachableHTTP(t.tcpIngressIP, t.svcPort, framework.LoadBalancerLagTimeoutDefault)
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t.jig.SanityCheckService(t.tcpService, v1.ServiceTypeLoadBalancer)
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}
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