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Merge pull request #46197 from xiangpengzhao/fix-allocate-clusterip

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Automatic merge from submit-queue (batch tested with PRs 47850, 47835, 46197, 47250, 48284)

Allocate clusterIP when change service type from ExternalName to ClusterIP

**What this PR does / why we need it**:

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #35354 #46190

**Special notes for your reviewer**:
/cc @smarterclayton @thockin 

**Release note**:

```release-note
NONE
```
This commit is contained in:
Kubernetes Submit Queue
2017-06-29 15:16:42 -07:00
committed by GitHub
parent d19773d855 a58232ab41
commit cc4b3cc7f5
8 changed files with 536 additions and 60 deletions
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10
test/e2e/dns.go
View File

@@ -225,7 +225,6 @@ func assertFilesContain(fileNames []string, fileDir string, pod *v1.Pod, client
}
func validateDNSResults(f *framework.Framework, pod *v1.Pod, fileNames []string) {
By("submitting the pod to kubernetes")
podClient := f.ClientSet.Core().Pods(f.Namespace.Name)
defer func() {
@@ -254,7 +253,6 @@ func validateDNSResults(f *framework.Framework, pod *v1.Pod, fileNames []string)
}
func validateTargetedProbeOutput(f *framework.Framework, pod *v1.Pod, fileNames []string, value string) {
By("submitting the pod to kubernetes")
podClient := f.ClientSet.Core().Pods(f.Namespace.Name)
defer func() {
@@ -401,6 +399,10 @@ var _ = framework.KubeDescribe("DNS", func() {
})
It("should provide DNS for ExternalName services", func() {
// TODO(xiangpengzhao): allow AWS when pull-kubernetes-e2e-kops-aws and pull-kubernetes-e2e-gce-etcd3
// have the same "service-cluster-ip-range". See: https://github.com/kubernetes/kubernetes/issues/47224
framework.SkipUnlessProviderIs("gce")
// Create a test ExternalName service.
By("Creating a test externalName service")
serviceName := "dns-test-service-3"
@@ -446,7 +448,7 @@ var _ = framework.KubeDescribe("DNS", func() {
By("changing the service to type=ClusterIP")
_, err = framework.UpdateService(f.ClientSet, f.Namespace.Name, serviceName, func(s *v1.Service) {
s.Spec.Type = v1.ServiceTypeClusterIP
s.Spec.ClusterIP = "127.1.2.3"
s.Spec.ClusterIP = "10.0.0.123"
s.Spec.Ports = []v1.ServicePort{
{Port: 80, Name: "http", Protocol: "TCP"},
}
@@ -461,6 +463,6 @@ var _ = framework.KubeDescribe("DNS", func() {
By("creating a third pod to probe DNS")
pod3 := createDNSPod(f.Namespace.Name, wheezyProbeCmd, jessieProbeCmd, true)
validateTargetedProbeOutput(f, pod3, []string{wheezyFileName, jessieFileName}, "127.1.2.3")
validateTargetedProbeOutput(f, pod3, []string{wheezyFileName, jessieFileName}, "10.0.0.123")
})
})

42
test/e2e/framework/service_util.go
View File

@@ -35,6 +35,7 @@ import (
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apimachinery/pkg/util/uuid"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
"k8s.io/kubernetes/pkg/client/retry"
@@ -177,6 +178,31 @@ func (j *ServiceTestJig) CreateUDPServiceOrFail(namespace string, tweak func(svc
return result
}
// CreateExternalNameServiceOrFail creates a new ExternalName type Service based on the jig's defaults.
// Callers can provide a function to tweak the Service object before it is created.
func (j *ServiceTestJig) CreateExternalNameServiceOrFail(namespace string, tweak func(svc *v1.Service)) *v1.Service {
svc := &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Namespace: namespace,
Name: j.Name,
Labels: j.Labels,
},
Spec: v1.ServiceSpec{
Selector: j.Labels,
ExternalName: "foo.example.com",
Type: v1.ServiceTypeExternalName,
},
}
if tweak != nil {
tweak(svc)
}
result, err := j.Client.Core().Services(namespace).Create(svc)
if err != nil {
Failf("Failed to create ExternalName Service %q: %v", svc.Name, err)
}
return result
}
func (j *ServiceTestJig) ChangeServiceType(namespace, name string, newType v1.ServiceType, timeout time.Duration) {
ingressIP := ""
svc := j.UpdateServiceOrFail(namespace, name, func(s *v1.Service) {
@@ -373,8 +399,22 @@ func (j *ServiceTestJig) SanityCheckService(svc *v1.Service, svcType v1.ServiceT
if svc.Spec.Type != svcType {
Failf("unexpected Spec.Type (%s) for service, expected %s", svc.Spec.Type, svcType)
}
if svcType != v1.ServiceTypeExternalName {
if svc.Spec.ExternalName != "" {
Failf("unexpected Spec.ExternalName (%s) for service, expected empty", svc.Spec.ExternalName)
}
if svc.Spec.ClusterIP != api.ClusterIPNone && svc.Spec.ClusterIP == "" {
Failf("didn't get ClusterIP for non-ExternamName service")
}
} else {
if svc.Spec.ClusterIP != "" {
Failf("unexpected Spec.ClusterIP (%s) for ExternamName service, expected empty", svc.Spec.ClusterIP)
}
}
expectNodePorts := false
if svcType != v1.ServiceTypeClusterIP {
if svcType != v1.ServiceTypeClusterIP && svcType != v1.ServiceTypeExternalName {
expectNodePorts = true
}
for i, port := range svc.Spec.Ports {

97
test/e2e/service.go
View File

@@ -789,6 +789,101 @@ var _ = framework.KubeDescribe("Services", func() {
}
})
It("should be able to change the type from ExternalName to ClusterIP", func() {
serviceName := "externalname-service"
ns := f.Namespace.Name
jig := framework.NewServiceTestJig(cs, serviceName)
By("creating a service " + serviceName + " with the type=ExternalName in namespace " + ns)
externalNameService := jig.CreateExternalNameServiceOrFail(ns, nil)
defer func() {
framework.Logf("Cleaning up the ExternalName to ClusterIP test service")
err := cs.Core().Services(ns).Delete(serviceName, nil)
Expect(err).NotTo(HaveOccurred())
}()
jig.SanityCheckService(externalNameService, v1.ServiceTypeExternalName)
By("changing the ExternalName service to type=ClusterIP")
clusterIPService := jig.UpdateServiceOrFail(ns, externalNameService.Name, func(s *v1.Service) {
s.Spec.Type = v1.ServiceTypeClusterIP
s.Spec.ExternalName = ""
s.Spec.Ports = []v1.ServicePort{
{Port: 80, Name: "http", Protocol: "TCP"},
}
})
jig.SanityCheckService(clusterIPService, v1.ServiceTypeClusterIP)
})
It("should be able to change the type from ExternalName to NodePort", func() {
serviceName := "externalname-service"
ns := f.Namespace.Name
jig := framework.NewServiceTestJig(cs, serviceName)
By("creating a service " + serviceName + " with the type=ExternalName in namespace " + ns)
externalNameService := jig.CreateExternalNameServiceOrFail(ns, nil)
defer func() {
framework.Logf("Cleaning up the ExternalName to NodePort test service")
err := cs.Core().Services(ns).Delete(serviceName, nil)
Expect(err).NotTo(HaveOccurred())
}()
jig.SanityCheckService(externalNameService, v1.ServiceTypeExternalName)
By("changing the ExternalName service to type=NodePort")
nodePortService := jig.UpdateServiceOrFail(ns, externalNameService.Name, func(s *v1.Service) {
s.Spec.Type = v1.ServiceTypeNodePort
s.Spec.ExternalName = ""
s.Spec.Ports = []v1.ServicePort{
{Port: 80, Name: "http", Protocol: "TCP"},
}
})
jig.SanityCheckService(nodePortService, v1.ServiceTypeNodePort)
})
It("should be able to change the type from ClusterIP to ExternalName", func() {
serviceName := "clusterip-service"
ns := f.Namespace.Name
jig := framework.NewServiceTestJig(cs, serviceName)
By("creating a service " + serviceName + " with the type=ClusterIP in namespace " + ns)
clusterIPService := jig.CreateTCPServiceOrFail(ns, nil)
defer func() {
framework.Logf("Cleaning up the ClusterIP to ExternalName test service")
err := cs.Core().Services(ns).Delete(serviceName, nil)
Expect(err).NotTo(HaveOccurred())
}()
jig.SanityCheckService(clusterIPService, v1.ServiceTypeClusterIP)
By("changing the ClusterIP service to type=ExternalName")
externalNameService := jig.UpdateServiceOrFail(ns, clusterIPService.Name, func(s *v1.Service) {
s.Spec.Type = v1.ServiceTypeExternalName
s.Spec.ExternalName = "foo.example.com"
s.Spec.ClusterIP = ""
})
jig.SanityCheckService(externalNameService, v1.ServiceTypeExternalName)
})
It("should be able to change the type from NodePort to ExternalName", func() {
serviceName := "nodeport-service"
ns := f.Namespace.Name
jig := framework.NewServiceTestJig(cs, serviceName)
By("creating a service " + serviceName + " with the type=NodePort in namespace " + ns)
nodePortService := jig.CreateTCPServiceOrFail(ns, func(svc *v1.Service) {
svc.Spec.Type = v1.ServiceTypeNodePort
})
defer func() {
framework.Logf("Cleaning up the NodePort to ExternalName test service")
err := cs.Core().Services(ns).Delete(serviceName, nil)
Expect(err).NotTo(HaveOccurred())
}()
jig.SanityCheckService(nodePortService, v1.ServiceTypeNodePort)
By("changing the NodePort service to type=ExternalName")
externalNameService := jig.UpdateServiceOrFail(ns, nodePortService.Name, func(s *v1.Service) {
s.Spec.Type = v1.ServiceTypeExternalName
s.Spec.ExternalName = "foo.example.com"
s.Spec.ClusterIP = ""
s.Spec.Ports[0].NodePort = 0
})
jig.SanityCheckService(externalNameService, v1.ServiceTypeExternalName)
})
It("should use same NodePort with same port but different protocols", func() {
serviceName := "nodeports"
ns := f.Namespace.Name
@@ -866,7 +961,7 @@ var _ = framework.KubeDescribe("Services", func() {
}
port := result.Spec.Ports[0]
if port.NodePort == 0 {
framework.Failf("got unexpected Spec.Ports[0].nodePort for new service: %v", result)
framework.Failf("got unexpected Spec.Ports[0].NodePort for new service: %v", result)
}
By("creating service " + serviceName2 + " with conflicting NodePort")