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E2E: add a test that checks the ip freed when changing the servicetype
Adding a test that verifies that changing the service type makes an ip available and reprocess eventual existing services with externalIP=pending. Signed-off-by: Federico Paolinelli <fpaoline@redhat.com>
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// SPDX-License-Identifier:Apache-2.0 | ||
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package l2tests | ||
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import ( | ||
"context" | ||
"fmt" | ||
"time" | ||
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"github.com/onsi/ginkgo" | ||
"github.com/onsi/ginkgo/extensions/table" | ||
"github.com/onsi/gomega" | ||
metallbv1beta1 "go.universe.tf/metallb/api/v1beta1" | ||
"go.universe.tf/metallb/e2etest/pkg/config" | ||
"go.universe.tf/metallb/e2etest/pkg/k8s" | ||
"go.universe.tf/metallb/e2etest/pkg/service" | ||
internalconfig "go.universe.tf/metallb/internal/config" | ||
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v1 "k8s.io/api/core/v1" | ||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
clientset "k8s.io/client-go/kubernetes" | ||
"k8s.io/kubernetes/test/e2e/framework" | ||
e2eservice "k8s.io/kubernetes/test/e2e/framework/service" | ||
admissionapi "k8s.io/pod-security-admission/api" | ||
) | ||
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var _ = ginkgo.Describe("IP Assignment", func() { | ||
var cs clientset.Interface | ||
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var f *framework.Framework | ||
ginkgo.AfterEach(func() { | ||
if ginkgo.CurrentGinkgoTestDescription().Failed { | ||
k8s.DumpInfo(Reporter, ginkgo.CurrentGinkgoTestDescription().TestText) | ||
} | ||
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// Clean previous configuration. | ||
err := ConfigUpdater.Clean() | ||
framework.ExpectNoError(err) | ||
}) | ||
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f = framework.NewDefaultFramework("assignment") | ||
f.NamespacePodSecurityEnforceLevel = admissionapi.LevelPrivileged | ||
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ginkgo.BeforeEach(func() { | ||
cs = f.ClientSet | ||
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ginkgo.By("Clearing any previous configuration") | ||
err := ConfigUpdater.Clean() | ||
framework.ExpectNoError(err) | ||
}) | ||
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ginkgo.Context("IPV4 Assignment", func() { | ||
table.DescribeTable("should remove the ip from a service assign it to a free one when", func(modify func(svc *v1.Service) error) { | ||
ip, err := config.GetIPFromRangeByIndex(IPV4ServiceRange, 0) | ||
framework.ExpectNoError(err) | ||
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resources := internalconfig.ClusterResources{ | ||
Pools: []metallbv1beta1.IPAddressPool{ | ||
{ | ||
ObjectMeta: metav1.ObjectMeta{ | ||
Name: "singleip-pool", | ||
}, | ||
Spec: metallbv1beta1.IPAddressPoolSpec{ | ||
Addresses: []string{ | ||
fmt.Sprintf("%s/32", ip), | ||
}, | ||
}, | ||
}, | ||
}, | ||
} | ||
err = ConfigUpdater.Update(resources) | ||
framework.ExpectNoError(err) | ||
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jig := e2eservice.NewTestJig(cs, f.Namespace.Name, "singleip") | ||
svc, err := jig.CreateLoadBalancerService(10*time.Second, service.TrafficPolicyCluster) | ||
framework.ExpectNoError(err) | ||
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ginkgo.By("Creating another service") | ||
svc1, err := jig.CreateTCPService(func(svc *v1.Service) { | ||
svc.Spec.Type = v1.ServiceTypeLoadBalancer | ||
svc.Name = "singleip1" | ||
}) | ||
framework.ExpectNoError(err) | ||
gomega.Consistently(func() int { | ||
s, err := cs.CoreV1().Services(svc1.Namespace).Get(context.Background(), svc1.Name, metav1.GetOptions{}) | ||
framework.ExpectNoError(err) | ||
return len(s.Status.LoadBalancer.Ingress) | ||
}, 5*time.Second, 1*time.Second).Should(gomega.BeZero()) | ||
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err = modify(svc) | ||
framework.ExpectNoError(err) | ||
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ginkgo.By("Changing the service type so the ip is free to be used again") | ||
framework.ExpectNoError(err) | ||
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ginkgo.By("Checking the second service gets the ip assigned") | ||
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gomega.Eventually(func() string { | ||
s, err := cs.CoreV1().Services(svc1.Namespace).Get(context.Background(), svc1.Name, metav1.GetOptions{}) | ||
framework.ExpectNoError(err) | ||
if len(s.Status.LoadBalancer.Ingress) == 0 { | ||
return "" | ||
} | ||
return s.Status.LoadBalancer.Ingress[0].IP | ||
}, time.Minute, 1*time.Second).Should(gomega.Equal(ip)) | ||
}, | ||
table.Entry("changing the service type to clusterIP", | ||
func(svc *v1.Service) error { | ||
svc.Spec.Type = v1.ServiceTypeClusterIP | ||
_, err := cs.CoreV1().Services(svc.Namespace).Update(context.Background(), svc, metav1.UpdateOptions{}) | ||
return err | ||
}), | ||
table.Entry("deleting the service", | ||
func(svc *v1.Service) error { | ||
err := cs.CoreV1().Services(svc.Namespace).Delete(context.Background(), svc.Name, metav1.DeleteOptions{}) | ||
return err | ||
})) | ||
}) | ||
}) |