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service.go
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service.go
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/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package e2e
import (
"bytes"
"fmt"
"math/rand"
"strings"
"time"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/util/intstr"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/kubernetes/pkg/api/v1"
"k8s.io/kubernetes/pkg/api/v1/service"
"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
"k8s.io/kubernetes/pkg/cloudprovider"
"k8s.io/kubernetes/pkg/controller/endpoint"
"k8s.io/kubernetes/test/e2e/framework"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = framework.KubeDescribe("Services", func() {
f := framework.NewDefaultFramework("services")
var cs clientset.Interface
var internalClientset internalclientset.Interface
serviceLBNames := []string{}
BeforeEach(func() {
cs = f.ClientSet
internalClientset = f.InternalClientset
})
AfterEach(func() {
if CurrentGinkgoTestDescription().Failed {
framework.DescribeSvc(f.Namespace.Name)
}
for _, lb := range serviceLBNames {
framework.Logf("cleaning gce resource for %s", lb)
framework.CleanupServiceGCEResources(lb)
}
//reset serviceLBNames
serviceLBNames = []string{}
})
// TODO: We get coverage of TCP/UDP and multi-port services through the DNS test. We should have a simpler test for multi-port TCP here.
It("should provide secure master service [Conformance]", func() {
_, err := cs.Core().Services(metav1.NamespaceDefault).Get("kubernetes", metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
})
It("should serve a basic endpoint from pods [Conformance]", func() {
// TODO: use the ServiceTestJig here
serviceName := "endpoint-test2"
ns := f.Namespace.Name
labels := map[string]string{
"foo": "bar",
"baz": "blah",
}
By("creating service " + serviceName + " in namespace " + ns)
defer func() {
err := cs.Core().Services(ns).Delete(serviceName, nil)
Expect(err).NotTo(HaveOccurred())
}()
service := &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Name: serviceName,
},
Spec: v1.ServiceSpec{
Selector: labels,
Ports: []v1.ServicePort{{
Port: 80,
TargetPort: intstr.FromInt(80),
}},
},
}
_, err := cs.Core().Services(ns).Create(service)
Expect(err).NotTo(HaveOccurred())
framework.ValidateEndpointsOrFail(cs, ns, serviceName, framework.PortsByPodName{})
names := map[string]bool{}
defer func() {
for name := range names {
err := cs.Core().Pods(ns).Delete(name, nil)
Expect(err).NotTo(HaveOccurred())
}
}()
name1 := "pod1"
name2 := "pod2"
framework.CreatePodOrFail(cs, ns, name1, labels, []v1.ContainerPort{{ContainerPort: 80}})
names[name1] = true
framework.ValidateEndpointsOrFail(cs, ns, serviceName, framework.PortsByPodName{name1: {80}})
framework.CreatePodOrFail(cs, ns, name2, labels, []v1.ContainerPort{{ContainerPort: 80}})
names[name2] = true
framework.ValidateEndpointsOrFail(cs, ns, serviceName, framework.PortsByPodName{name1: {80}, name2: {80}})
framework.DeletePodOrFail(cs, ns, name1)
delete(names, name1)
framework.ValidateEndpointsOrFail(cs, ns, serviceName, framework.PortsByPodName{name2: {80}})
framework.DeletePodOrFail(cs, ns, name2)
delete(names, name2)
framework.ValidateEndpointsOrFail(cs, ns, serviceName, framework.PortsByPodName{})
})
It("should serve multiport endpoints from pods [Conformance]", func() {
// TODO: use the ServiceTestJig here
// repacking functionality is intentionally not tested here - it's better to test it in an integration test.
serviceName := "multi-endpoint-test"
ns := f.Namespace.Name
defer func() {
err := cs.Core().Services(ns).Delete(serviceName, nil)
Expect(err).NotTo(HaveOccurred())
}()
labels := map[string]string{"foo": "bar"}
svc1port := "svc1"
svc2port := "svc2"
By("creating service " + serviceName + " in namespace " + ns)
service := &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Name: serviceName,
},
Spec: v1.ServiceSpec{
Selector: labels,
Ports: []v1.ServicePort{
{
Name: "portname1",
Port: 80,
TargetPort: intstr.FromString(svc1port),
},
{
Name: "portname2",
Port: 81,
TargetPort: intstr.FromString(svc2port),
},
},
},
}
_, err := cs.Core().Services(ns).Create(service)
Expect(err).NotTo(HaveOccurred())
port1 := 100
port2 := 101
framework.ValidateEndpointsOrFail(cs, ns, serviceName, framework.PortsByPodName{})
names := map[string]bool{}
defer func() {
for name := range names {
err := cs.Core().Pods(ns).Delete(name, nil)
Expect(err).NotTo(HaveOccurred())
}
}()
containerPorts1 := []v1.ContainerPort{
{
Name: svc1port,
ContainerPort: int32(port1),
},
}
containerPorts2 := []v1.ContainerPort{
{
Name: svc2port,
ContainerPort: int32(port2),
},
}
podname1 := "pod1"
podname2 := "pod2"
framework.CreatePodOrFail(cs, ns, podname1, labels, containerPorts1)
names[podname1] = true
framework.ValidateEndpointsOrFail(cs, ns, serviceName, framework.PortsByPodName{podname1: {port1}})
framework.CreatePodOrFail(cs, ns, podname2, labels, containerPorts2)
names[podname2] = true
framework.ValidateEndpointsOrFail(cs, ns, serviceName, framework.PortsByPodName{podname1: {port1}, podname2: {port2}})
framework.DeletePodOrFail(cs, ns, podname1)
delete(names, podname1)
framework.ValidateEndpointsOrFail(cs, ns, serviceName, framework.PortsByPodName{podname2: {port2}})
framework.DeletePodOrFail(cs, ns, podname2)
delete(names, podname2)
framework.ValidateEndpointsOrFail(cs, ns, serviceName, framework.PortsByPodName{})
})
It("should preserve source pod IP for traffic thru service cluster IP", func() {
// This behavior is not supported if Kube-proxy is in "userspace" mode.
// So we check the kube-proxy mode and skip this test if that's the case.
if proxyMode, err := framework.ProxyMode(f); err == nil {
if proxyMode == "userspace" {
framework.Skipf("The test doesn't work with kube-proxy in userspace mode")
}
} else {
framework.Logf("Couldn't detect KubeProxy mode - test failure may be expected: %v", err)
}
serviceName := "sourceip-test"
ns := f.Namespace.Name
By("creating a TCP service " + serviceName + " with type=ClusterIP in namespace " + ns)
jig := framework.NewServiceTestJig(cs, serviceName)
servicePort := 8080
tcpService := jig.CreateTCPServiceWithPort(ns, nil, int32(servicePort))
jig.SanityCheckService(tcpService, v1.ServiceTypeClusterIP)
defer func() {
framework.Logf("Cleaning up the sourceip test service")
err := cs.Core().Services(ns).Delete(serviceName, nil)
Expect(err).NotTo(HaveOccurred())
}()
serviceIp := tcpService.Spec.ClusterIP
framework.Logf("sourceip-test cluster ip: %s", serviceIp)
By("Picking multiple nodes")
nodes := framework.GetReadySchedulableNodesOrDie(f.ClientSet)
if len(nodes.Items) == 1 {
framework.Skipf("The test requires two Ready nodes on %s, but found just one.", framework.TestContext.Provider)
}
node1 := nodes.Items[0]
node2 := nodes.Items[1]
By("Creating a webserver pod be part of the TCP service which echoes back source ip")
serverPodName := "echoserver-sourceip"
jig.LaunchEchoserverPodOnNode(f, node1.Name, serverPodName)
defer func() {
framework.Logf("Cleaning up the echo server pod")
err := cs.Core().Pods(ns).Delete(serverPodName, nil)
Expect(err).NotTo(HaveOccurred())
}()
// Waiting for service to expose endpoint.
framework.ValidateEndpointsOrFail(cs, ns, serviceName, framework.PortsByPodName{serverPodName: {servicePort}})
By("Retrieve sourceip from a pod on the same node")
sourceIp1, execPodIp1 := execSourceipTest(f, cs, ns, node1.Name, serviceIp, servicePort)
By("Verifying the preserved source ip")
Expect(sourceIp1).To(Equal(execPodIp1))
By("Retrieve sourceip from a pod on a different node")
sourceIp2, execPodIp2 := execSourceipTest(f, cs, ns, node2.Name, serviceIp, servicePort)
By("Verifying the preserved source ip")
Expect(sourceIp2).To(Equal(execPodIp2))
})
It("should be able to up and down services", func() {
// TODO: use the ServiceTestJig here
// this test uses framework.NodeSSHHosts that does not work if a Node only reports LegacyHostIP
framework.SkipUnlessProviderIs(framework.ProvidersWithSSH...)
// this test does not work if the Node does not support SSH Key
framework.SkipUnlessSSHKeyPresent()
ns := f.Namespace.Name
numPods, servicePort := 3, 80
By("creating service1 in namespace " + ns)
podNames1, svc1IP, err := framework.StartServeHostnameService(cs, internalClientset, ns, "service1", servicePort, numPods)
Expect(err).NotTo(HaveOccurred())
By("creating service2 in namespace " + ns)
podNames2, svc2IP, err := framework.StartServeHostnameService(cs, internalClientset, ns, "service2", servicePort, numPods)
Expect(err).NotTo(HaveOccurred())
hosts, err := framework.NodeSSHHosts(cs)
Expect(err).NotTo(HaveOccurred())
if len(hosts) == 0 {
framework.Failf("No ssh-able nodes")
}
host := hosts[0]
By("verifying service1 is up")
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames1, svc1IP, servicePort))
By("verifying service2 is up")
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames2, svc2IP, servicePort))
// Stop service 1 and make sure it is gone.
By("stopping service1")
framework.ExpectNoError(framework.StopServeHostnameService(f.ClientSet, f.InternalClientset, ns, "service1"))
By("verifying service1 is not up")
framework.ExpectNoError(framework.VerifyServeHostnameServiceDown(cs, host, svc1IP, servicePort))
By("verifying service2 is still up")
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames2, svc2IP, servicePort))
// Start another service and verify both are up.
By("creating service3 in namespace " + ns)
podNames3, svc3IP, err := framework.StartServeHostnameService(cs, internalClientset, ns, "service3", servicePort, numPods)
Expect(err).NotTo(HaveOccurred())
if svc2IP == svc3IP {
framework.Failf("service IPs conflict: %v", svc2IP)
}
By("verifying service2 is still up")
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames2, svc2IP, servicePort))
By("verifying service3 is up")
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames3, svc3IP, servicePort))
})
It("should work after restarting kube-proxy [Disruptive]", func() {
// TODO: use the ServiceTestJig here
framework.SkipUnlessProviderIs("gce", "gke")
ns := f.Namespace.Name
numPods, servicePort := 3, 80
svc1 := "service1"
svc2 := "service2"
defer func() {
framework.ExpectNoError(framework.StopServeHostnameService(f.ClientSet, f.InternalClientset, ns, svc1))
}()
podNames1, svc1IP, err := framework.StartServeHostnameService(cs, internalClientset, ns, svc1, servicePort, numPods)
Expect(err).NotTo(HaveOccurred())
defer func() {
framework.ExpectNoError(framework.StopServeHostnameService(f.ClientSet, f.InternalClientset, ns, svc2))
}()
podNames2, svc2IP, err := framework.StartServeHostnameService(cs, internalClientset, ns, svc2, servicePort, numPods)
Expect(err).NotTo(HaveOccurred())
if svc1IP == svc2IP {
framework.Failf("VIPs conflict: %v", svc1IP)
}
hosts, err := framework.NodeSSHHosts(cs)
Expect(err).NotTo(HaveOccurred())
if len(hosts) == 0 {
framework.Failf("No ssh-able nodes")
}
host := hosts[0]
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames1, svc1IP, servicePort))
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames2, svc2IP, servicePort))
By(fmt.Sprintf("Restarting kube-proxy on %v", host))
if err := framework.RestartKubeProxy(host); err != nil {
framework.Failf("error restarting kube-proxy: %v", err)
}
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames1, svc1IP, servicePort))
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames2, svc2IP, servicePort))
By("Removing iptable rules")
result, err := framework.SSH(`
sudo iptables -t nat -F KUBE-SERVICES || true;
sudo iptables -t nat -F KUBE-PORTALS-HOST || true;
sudo iptables -t nat -F KUBE-PORTALS-CONTAINER || true`, host, framework.TestContext.Provider)
if err != nil || result.Code != 0 {
framework.LogSSHResult(result)
framework.Failf("couldn't remove iptable rules: %v", err)
}
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames1, svc1IP, servicePort))
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames2, svc2IP, servicePort))
})
It("should work after restarting apiserver [Disruptive]", func() {
// TODO: use the ServiceTestJig here
framework.SkipUnlessProviderIs("gce", "gke")
ns := f.Namespace.Name
numPods, servicePort := 3, 80
defer func() {
framework.ExpectNoError(framework.StopServeHostnameService(f.ClientSet, f.InternalClientset, ns, "service1"))
}()
podNames1, svc1IP, err := framework.StartServeHostnameService(cs, internalClientset, ns, "service1", servicePort, numPods)
Expect(err).NotTo(HaveOccurred())
hosts, err := framework.NodeSSHHosts(cs)
Expect(err).NotTo(HaveOccurred())
if len(hosts) == 0 {
framework.Failf("No ssh-able nodes")
}
host := hosts[0]
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames1, svc1IP, servicePort))
// Restart apiserver
By("Restarting apiserver")
if err := framework.RestartApiserver(cs.Discovery()); err != nil {
framework.Failf("error restarting apiserver: %v", err)
}
By("Waiting for apiserver to come up by polling /healthz")
if err := framework.WaitForApiserverUp(cs); err != nil {
framework.Failf("error while waiting for apiserver up: %v", err)
}
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames1, svc1IP, servicePort))
// Create a new service and check if it's not reusing IP.
defer func() {
framework.ExpectNoError(framework.StopServeHostnameService(f.ClientSet, f.InternalClientset, ns, "service2"))
}()
podNames2, svc2IP, err := framework.StartServeHostnameService(cs, internalClientset, ns, "service2", servicePort, numPods)
Expect(err).NotTo(HaveOccurred())
if svc1IP == svc2IP {
framework.Failf("VIPs conflict: %v", svc1IP)
}
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames1, svc1IP, servicePort))
framework.ExpectNoError(framework.VerifyServeHostnameServiceUp(cs, ns, host, podNames2, svc2IP, servicePort))
})
// TODO: Run this test against the userspace proxy and nodes
// configured with a default deny firewall to validate that the
// proxy whitelists NodePort traffic.
It("should be able to create a functioning NodePort service", func() {
serviceName := "nodeport-test"
ns := f.Namespace.Name
jig := framework.NewServiceTestJig(cs, serviceName)
nodeIP := framework.PickNodeIP(jig.Client) // for later
By("creating service " + serviceName + " with type=NodePort in namespace " + ns)
service := jig.CreateTCPServiceOrFail(ns, func(svc *v1.Service) {
svc.Spec.Type = v1.ServiceTypeNodePort
})
jig.SanityCheckService(service, v1.ServiceTypeNodePort)
nodePort := int(service.Spec.Ports[0].NodePort)
By("creating pod to be part of service " + serviceName)
jig.RunOrFail(ns, nil)
By("hitting the pod through the service's NodePort")
jig.TestReachableHTTP(nodeIP, nodePort, framework.KubeProxyLagTimeout)
By("verifying the node port is locked")
hostExec := framework.LaunchHostExecPod(f.ClientSet, f.Namespace.Name, "hostexec")
// Even if the node-ip:node-port check above passed, this hostexec pod
// might fall on a node with a laggy kube-proxy.
cmd := fmt.Sprintf(`for i in $(seq 1 300); do if ss -ant46 'sport = :%d' | grep ^LISTEN; then exit 0; fi; sleep 1; done; exit 1`, nodePort)
stdout, err := framework.RunHostCmd(hostExec.Namespace, hostExec.Name, cmd)
if err != nil {
framework.Failf("expected node port %d to be in use, stdout: %v. err: %v", nodePort, stdout, err)
}
})
It("should be able to change the type and ports of a service [Slow]", func() {
// requires cloud load-balancer support
framework.SkipUnlessProviderIs("gce", "gke", "aws")
loadBalancerSupportsUDP := !framework.ProviderIs("aws")
loadBalancerLagTimeout := framework.LoadBalancerLagTimeoutDefault
if framework.ProviderIs("aws") {
loadBalancerLagTimeout = framework.LoadBalancerLagTimeoutAWS
}
loadBalancerCreateTimeout := framework.LoadBalancerCreateTimeoutDefault
if nodes := framework.GetReadySchedulableNodesOrDie(cs); len(nodes.Items) > framework.LargeClusterMinNodesNumber {
loadBalancerCreateTimeout = framework.LoadBalancerCreateTimeoutLarge
}
// This test is more monolithic than we'd like because LB turnup can be
// very slow, so we lumped all the tests into one LB lifecycle.
serviceName := "mutability-test"
ns1 := f.Namespace.Name // LB1 in ns1 on TCP
framework.Logf("namespace for TCP test: %s", ns1)
By("creating a second namespace")
namespacePtr, err := f.CreateNamespace("services", nil)
Expect(err).NotTo(HaveOccurred())
ns2 := namespacePtr.Name // LB2 in ns2 on UDP
framework.Logf("namespace for UDP test: %s", ns2)
jig := framework.NewServiceTestJig(cs, serviceName)
nodeIP := framework.PickNodeIP(jig.Client) // for later
// Test TCP and UDP Services. Services with the same name in different
// namespaces should get different node ports and load balancers.
By("creating a TCP service " + serviceName + " with type=ClusterIP in namespace " + ns1)
tcpService := jig.CreateTCPServiceOrFail(ns1, nil)
jig.SanityCheckService(tcpService, v1.ServiceTypeClusterIP)
By("creating a UDP service " + serviceName + " with type=ClusterIP in namespace " + ns2)
udpService := jig.CreateUDPServiceOrFail(ns2, nil)
jig.SanityCheckService(udpService, v1.ServiceTypeClusterIP)
By("verifying that TCP and UDP use the same port")
if tcpService.Spec.Ports[0].Port != udpService.Spec.Ports[0].Port {
framework.Failf("expected to use the same port for TCP and UDP")
}
svcPort := int(tcpService.Spec.Ports[0].Port)
framework.Logf("service port (TCP and UDP): %d", svcPort)
By("creating a pod to be part of the TCP service " + serviceName)
jig.RunOrFail(ns1, nil)
By("creating a pod to be part of the UDP service " + serviceName)
jig.RunOrFail(ns2, nil)
// Change the services to NodePort.
By("changing the TCP service to type=NodePort")
tcpService = jig.UpdateServiceOrFail(ns1, tcpService.Name, func(s *v1.Service) {
s.Spec.Type = v1.ServiceTypeNodePort
})
jig.SanityCheckService(tcpService, v1.ServiceTypeNodePort)
tcpNodePort := int(tcpService.Spec.Ports[0].NodePort)
framework.Logf("TCP node port: %d", tcpNodePort)
By("changing the UDP service to type=NodePort")
udpService = jig.UpdateServiceOrFail(ns2, udpService.Name, func(s *v1.Service) {
s.Spec.Type = v1.ServiceTypeNodePort
})
jig.SanityCheckService(udpService, v1.ServiceTypeNodePort)
udpNodePort := int(udpService.Spec.Ports[0].NodePort)
framework.Logf("UDP node port: %d", udpNodePort)
By("hitting the TCP service's NodePort")
jig.TestReachableHTTP(nodeIP, tcpNodePort, framework.KubeProxyLagTimeout)
By("hitting the UDP service's NodePort")
jig.TestReachableUDP(nodeIP, udpNodePort, framework.KubeProxyLagTimeout)
// Change the services to LoadBalancer.
// Here we test that LoadBalancers can receive static IP addresses. This isn't
// necessary, but is an additional feature this monolithic test checks.
requestedIP := ""
staticIPName := ""
if framework.ProviderIs("gce", "gke") {
By("creating a static load balancer IP")
staticIPName = fmt.Sprintf("e2e-external-lb-test-%s", framework.RunId)
requestedIP, err = framework.CreateGCEStaticIP(staticIPName)
Expect(err).NotTo(HaveOccurred())
defer func() {
if staticIPName != "" {
// Release GCE static IP - this is not kube-managed and will not be automatically released.
if err := framework.DeleteGCEStaticIP(staticIPName); err != nil {
framework.Logf("failed to release static IP %s: %v", staticIPName, err)
}
}
}()
framework.Logf("Allocated static load balancer IP: %s", requestedIP)
}
By("changing the TCP service to type=LoadBalancer")
tcpService = jig.UpdateServiceOrFail(ns1, tcpService.Name, func(s *v1.Service) {
s.Spec.LoadBalancerIP = requestedIP // will be "" if not applicable
s.Spec.Type = v1.ServiceTypeLoadBalancer
})
if loadBalancerSupportsUDP {
By("changing the UDP service to type=LoadBalancer")
udpService = jig.UpdateServiceOrFail(ns2, udpService.Name, func(s *v1.Service) {
s.Spec.Type = v1.ServiceTypeLoadBalancer
})
}
serviceLBNames = append(serviceLBNames, cloudprovider.GetLoadBalancerName(tcpService))
if loadBalancerSupportsUDP {
serviceLBNames = append(serviceLBNames, cloudprovider.GetLoadBalancerName(udpService))
}
By("waiting for the TCP service to have a load balancer")
// Wait for the load balancer to be created asynchronously
tcpService = jig.WaitForLoadBalancerOrFail(ns1, tcpService.Name, loadBalancerCreateTimeout)
jig.SanityCheckService(tcpService, v1.ServiceTypeLoadBalancer)
if int(tcpService.Spec.Ports[0].NodePort) != tcpNodePort {
framework.Failf("TCP Spec.Ports[0].NodePort changed (%d -> %d) when not expected", tcpNodePort, tcpService.Spec.Ports[0].NodePort)
}
if requestedIP != "" && framework.GetIngressPoint(&tcpService.Status.LoadBalancer.Ingress[0]) != requestedIP {
framework.Failf("unexpected TCP Status.LoadBalancer.Ingress (expected %s, got %s)", requestedIP, framework.GetIngressPoint(&tcpService.Status.LoadBalancer.Ingress[0]))
}
tcpIngressIP := framework.GetIngressPoint(&tcpService.Status.LoadBalancer.Ingress[0])
framework.Logf("TCP load balancer: %s", tcpIngressIP)
if framework.ProviderIs("gce", "gke") {
// Do this as early as possible, which overrides the `defer` above.
// This is mostly out of fear of leaking the IP in a timeout case
// (as of this writing we're not 100% sure where the leaks are
// coming from, so this is first-aid rather than surgery).
By("demoting the static IP to ephemeral")
if staticIPName != "" {
// Deleting it after it is attached "demotes" it to an
// ephemeral IP, which can be auto-released.
if err := framework.DeleteGCEStaticIP(staticIPName); err != nil {
framework.Failf("failed to release static IP %s: %v", staticIPName, err)
}
staticIPName = ""
}
}
var udpIngressIP string
if loadBalancerSupportsUDP {
By("waiting for the UDP service to have a load balancer")
// 2nd one should be faster since they ran in parallel.
udpService = jig.WaitForLoadBalancerOrFail(ns2, udpService.Name, loadBalancerCreateTimeout)
jig.SanityCheckService(udpService, v1.ServiceTypeLoadBalancer)
if int(udpService.Spec.Ports[0].NodePort) != udpNodePort {
framework.Failf("UDP Spec.Ports[0].NodePort changed (%d -> %d) when not expected", udpNodePort, udpService.Spec.Ports[0].NodePort)
}
udpIngressIP = framework.GetIngressPoint(&udpService.Status.LoadBalancer.Ingress[0])
framework.Logf("UDP load balancer: %s", udpIngressIP)
By("verifying that TCP and UDP use different load balancers")
if tcpIngressIP == udpIngressIP {
framework.Failf("Load balancers are not different: %s", framework.GetIngressPoint(&tcpService.Status.LoadBalancer.Ingress[0]))
}
}
By("hitting the TCP service's NodePort")
jig.TestReachableHTTP(nodeIP, tcpNodePort, framework.KubeProxyLagTimeout)
By("hitting the UDP service's NodePort")
jig.TestReachableUDP(nodeIP, udpNodePort, framework.KubeProxyLagTimeout)
By("hitting the TCP service's LoadBalancer")
jig.TestReachableHTTP(tcpIngressIP, svcPort, loadBalancerLagTimeout)
if loadBalancerSupportsUDP {
By("hitting the UDP service's LoadBalancer")
jig.TestReachableUDP(udpIngressIP, svcPort, loadBalancerLagTimeout)
}
// Change the services' node ports.
By("changing the TCP service's NodePort")
tcpService = jig.ChangeServiceNodePortOrFail(ns1, tcpService.Name, tcpNodePort)
jig.SanityCheckService(tcpService, v1.ServiceTypeLoadBalancer)
tcpNodePortOld := tcpNodePort
tcpNodePort = int(tcpService.Spec.Ports[0].NodePort)
if tcpNodePort == tcpNodePortOld {
framework.Failf("TCP Spec.Ports[0].NodePort (%d) did not change", tcpNodePort)
}
if framework.GetIngressPoint(&tcpService.Status.LoadBalancer.Ingress[0]) != tcpIngressIP {
framework.Failf("TCP Status.LoadBalancer.Ingress changed (%s -> %s) when not expected", tcpIngressIP, framework.GetIngressPoint(&tcpService.Status.LoadBalancer.Ingress[0]))
}
framework.Logf("TCP node port: %d", tcpNodePort)
By("changing the UDP service's NodePort")
udpService = jig.ChangeServiceNodePortOrFail(ns2, udpService.Name, udpNodePort)
if loadBalancerSupportsUDP {
jig.SanityCheckService(udpService, v1.ServiceTypeLoadBalancer)
} else {
jig.SanityCheckService(udpService, v1.ServiceTypeNodePort)
}
udpNodePortOld := udpNodePort
udpNodePort = int(udpService.Spec.Ports[0].NodePort)
if udpNodePort == udpNodePortOld {
framework.Failf("UDP Spec.Ports[0].NodePort (%d) did not change", udpNodePort)
}
if loadBalancerSupportsUDP && framework.GetIngressPoint(&udpService.Status.LoadBalancer.Ingress[0]) != udpIngressIP {
framework.Failf("UDP Status.LoadBalancer.Ingress changed (%s -> %s) when not expected", udpIngressIP, framework.GetIngressPoint(&udpService.Status.LoadBalancer.Ingress[0]))
}
framework.Logf("UDP node port: %d", udpNodePort)
By("hitting the TCP service's new NodePort")
jig.TestReachableHTTP(nodeIP, tcpNodePort, framework.KubeProxyLagTimeout)
By("hitting the UDP service's new NodePort")
jig.TestReachableUDP(nodeIP, udpNodePort, framework.KubeProxyLagTimeout)
By("checking the old TCP NodePort is closed")
jig.TestNotReachableHTTP(nodeIP, tcpNodePortOld, framework.KubeProxyLagTimeout)
By("checking the old UDP NodePort is closed")
jig.TestNotReachableUDP(nodeIP, udpNodePortOld, framework.KubeProxyLagTimeout)
By("hitting the TCP service's LoadBalancer")
jig.TestReachableHTTP(tcpIngressIP, svcPort, loadBalancerLagTimeout)
if loadBalancerSupportsUDP {
By("hitting the UDP service's LoadBalancer")
jig.TestReachableUDP(udpIngressIP, svcPort, loadBalancerLagTimeout)
}
// Change the services' main ports.
By("changing the TCP service's port")
tcpService = jig.UpdateServiceOrFail(ns1, tcpService.Name, func(s *v1.Service) {
s.Spec.Ports[0].Port++
})
jig.SanityCheckService(tcpService, v1.ServiceTypeLoadBalancer)
svcPortOld := svcPort
svcPort = int(tcpService.Spec.Ports[0].Port)
if svcPort == svcPortOld {
framework.Failf("TCP Spec.Ports[0].Port (%d) did not change", svcPort)
}
if int(tcpService.Spec.Ports[0].NodePort) != tcpNodePort {
framework.Failf("TCP Spec.Ports[0].NodePort (%d) changed", tcpService.Spec.Ports[0].NodePort)
}
if framework.GetIngressPoint(&tcpService.Status.LoadBalancer.Ingress[0]) != tcpIngressIP {
framework.Failf("TCP Status.LoadBalancer.Ingress changed (%s -> %s) when not expected", tcpIngressIP, framework.GetIngressPoint(&tcpService.Status.LoadBalancer.Ingress[0]))
}
By("changing the UDP service's port")
udpService = jig.UpdateServiceOrFail(ns2, udpService.Name, func(s *v1.Service) {
s.Spec.Ports[0].Port++
})
if loadBalancerSupportsUDP {
jig.SanityCheckService(udpService, v1.ServiceTypeLoadBalancer)
} else {
jig.SanityCheckService(udpService, v1.ServiceTypeNodePort)
}
if int(udpService.Spec.Ports[0].Port) != svcPort {
framework.Failf("UDP Spec.Ports[0].Port (%d) did not change", udpService.Spec.Ports[0].Port)
}
if int(udpService.Spec.Ports[0].NodePort) != udpNodePort {
framework.Failf("UDP Spec.Ports[0].NodePort (%d) changed", udpService.Spec.Ports[0].NodePort)
}
if loadBalancerSupportsUDP && framework.GetIngressPoint(&udpService.Status.LoadBalancer.Ingress[0]) != udpIngressIP {
framework.Failf("UDP Status.LoadBalancer.Ingress changed (%s -> %s) when not expected", udpIngressIP, framework.GetIngressPoint(&udpService.Status.LoadBalancer.Ingress[0]))
}
framework.Logf("service port (TCP and UDP): %d", svcPort)
By("hitting the TCP service's NodePort")
jig.TestReachableHTTP(nodeIP, tcpNodePort, framework.KubeProxyLagTimeout)
By("hitting the UDP service's NodePort")
jig.TestReachableUDP(nodeIP, udpNodePort, framework.KubeProxyLagTimeout)
By("hitting the TCP service's LoadBalancer")
jig.TestReachableHTTP(tcpIngressIP, svcPort, loadBalancerCreateTimeout) // this may actually recreate the LB
if loadBalancerSupportsUDP {
By("hitting the UDP service's LoadBalancer")
jig.TestReachableUDP(udpIngressIP, svcPort, loadBalancerCreateTimeout) // this may actually recreate the LB)
}
// Change the services back to ClusterIP.
By("changing TCP service back to type=ClusterIP")
tcpService = jig.UpdateServiceOrFail(ns1, tcpService.Name, func(s *v1.Service) {
s.Spec.Type = v1.ServiceTypeClusterIP
s.Spec.Ports[0].NodePort = 0
})
// Wait for the load balancer to be destroyed asynchronously
tcpService = jig.WaitForLoadBalancerDestroyOrFail(ns1, tcpService.Name, tcpIngressIP, svcPort, loadBalancerCreateTimeout)
jig.SanityCheckService(tcpService, v1.ServiceTypeClusterIP)
By("changing UDP service back to type=ClusterIP")
udpService = jig.UpdateServiceOrFail(ns2, udpService.Name, func(s *v1.Service) {
s.Spec.Type = v1.ServiceTypeClusterIP
s.Spec.Ports[0].NodePort = 0
})
if loadBalancerSupportsUDP {
// Wait for the load balancer to be destroyed asynchronously
udpService = jig.WaitForLoadBalancerDestroyOrFail(ns2, udpService.Name, udpIngressIP, svcPort, loadBalancerCreateTimeout)
jig.SanityCheckService(udpService, v1.ServiceTypeClusterIP)
}
By("checking the TCP NodePort is closed")
jig.TestNotReachableHTTP(nodeIP, tcpNodePort, framework.KubeProxyLagTimeout)
By("checking the UDP NodePort is closed")
jig.TestNotReachableUDP(nodeIP, udpNodePort, framework.KubeProxyLagTimeout)
By("checking the TCP LoadBalancer is closed")
jig.TestNotReachableHTTP(tcpIngressIP, svcPort, loadBalancerLagTimeout)
if loadBalancerSupportsUDP {
By("checking the UDP LoadBalancer is closed")
jig.TestNotReachableUDP(udpIngressIP, svcPort, loadBalancerLagTimeout)
}
})
It("should use same NodePort with same port but different protocols", func() {
serviceName := "nodeports"
ns := f.Namespace.Name
t := framework.NewServerTest(cs, ns, serviceName)
defer func() {
defer GinkgoRecover()
errs := t.Cleanup()
if len(errs) != 0 {
framework.Failf("errors in cleanup: %v", errs)
}
}()
By("creating service " + serviceName + " with same NodePort but different protocols in namespace " + ns)
service := &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Name: t.ServiceName,
Namespace: t.Namespace,
},
Spec: v1.ServiceSpec{
Selector: t.Labels,
Type: v1.ServiceTypeNodePort,
Ports: []v1.ServicePort{
{
Name: "tcp-port",
Port: 53,
Protocol: v1.ProtocolTCP,
},
{
Name: "udp-port",
Port: 53,
Protocol: v1.ProtocolUDP,
},
},
},
}
result, err := t.CreateService(service)
Expect(err).NotTo(HaveOccurred())
if len(result.Spec.Ports) != 2 {
framework.Failf("got unexpected len(Spec.Ports) for new service: %v", result)
}
if result.Spec.Ports[0].NodePort != result.Spec.Ports[1].NodePort {
framework.Failf("should use same NodePort for new service: %v", result)
}
})
It("should prevent NodePort collisions", func() {
// TODO: use the ServiceTestJig here
baseName := "nodeport-collision-"
serviceName1 := baseName + "1"
serviceName2 := baseName + "2"
ns := f.Namespace.Name
t := framework.NewServerTest(cs, ns, serviceName1)
defer func() {
defer GinkgoRecover()
errs := t.Cleanup()
if len(errs) != 0 {
framework.Failf("errors in cleanup: %v", errs)
}
}()
By("creating service " + serviceName1 + " with type NodePort in namespace " + ns)
service := t.BuildServiceSpec()
service.Spec.Type = v1.ServiceTypeNodePort
result, err := t.CreateService(service)
Expect(err).NotTo(HaveOccurred())
if result.Spec.Type != v1.ServiceTypeNodePort {
framework.Failf("got unexpected Spec.Type for new service: %v", result)
}
if len(result.Spec.Ports) != 1 {
framework.Failf("got unexpected len(Spec.Ports) for new service: %v", result)
}
port := result.Spec.Ports[0]
if port.NodePort == 0 {
framework.Failf("got unexpected Spec.Ports[0].nodePort for new service: %v", result)
}
By("creating service " + serviceName2 + " with conflicting NodePort")
service2 := t.BuildServiceSpec()
service2.Name = serviceName2
service2.Spec.Type = v1.ServiceTypeNodePort
service2.Spec.Ports[0].NodePort = port.NodePort
result2, err := t.CreateService(service2)
if err == nil {
framework.Failf("Created service with conflicting NodePort: %v", result2)
}
expectedErr := fmt.Sprintf("%d.*port is already allocated", port.NodePort)
Expect(fmt.Sprintf("%v", err)).To(MatchRegexp(expectedErr))
By("deleting service " + serviceName1 + " to release NodePort")
err = t.DeleteService(serviceName1)
Expect(err).NotTo(HaveOccurred())
By("creating service " + serviceName2 + " with no-longer-conflicting NodePort")
_, err = t.CreateService(service2)
Expect(err).NotTo(HaveOccurred())
})
It("should check NodePort out-of-range", func() {
// TODO: use the ServiceTestJig here
serviceName := "nodeport-range-test"
ns := f.Namespace.Name
t := framework.NewServerTest(cs, ns, serviceName)
defer func() {
defer GinkgoRecover()
errs := t.Cleanup()
if len(errs) != 0 {
framework.Failf("errors in cleanup: %v", errs)
}
}()
service := t.BuildServiceSpec()
service.Spec.Type = v1.ServiceTypeNodePort
By("creating service " + serviceName + " with type NodePort in namespace " + ns)
service, err := t.CreateService(service)
Expect(err).NotTo(HaveOccurred())
if service.Spec.Type != v1.ServiceTypeNodePort {
framework.Failf("got unexpected Spec.Type for new service: %v", service)
}
if len(service.Spec.Ports) != 1 {
framework.Failf("got unexpected len(Spec.Ports) for new service: %v", service)
}
port := service.Spec.Ports[0]
if port.NodePort == 0 {
framework.Failf("got unexpected Spec.Ports[0].nodePort for new service: %v", service)
}
if !framework.ServiceNodePortRange.Contains(int(port.NodePort)) {
framework.Failf("got unexpected (out-of-range) port for new service: %v", service)
}
outOfRangeNodePort := 0
rand.Seed(time.Now().UTC().UnixNano())
for {
outOfRangeNodePort = 1 + rand.Intn(65535)
if !framework.ServiceNodePortRange.Contains(outOfRangeNodePort) {
break
}
}
By(fmt.Sprintf("changing service "+serviceName+" to out-of-range NodePort %d", outOfRangeNodePort))
result, err := framework.UpdateService(cs, ns, serviceName, func(s *v1.Service) {
s.Spec.Ports[0].NodePort = int32(outOfRangeNodePort)
})
if err == nil {
framework.Failf("failed to prevent update of service with out-of-range NodePort: %v", result)
}
expectedErr := fmt.Sprintf("%d.*port is not in the valid range", outOfRangeNodePort)
Expect(fmt.Sprintf("%v", err)).To(MatchRegexp(expectedErr))
By("deleting original service " + serviceName)
err = t.DeleteService(serviceName)
Expect(err).NotTo(HaveOccurred())
By(fmt.Sprintf("creating service "+serviceName+" with out-of-range NodePort %d", outOfRangeNodePort))
service = t.BuildServiceSpec()
service.Spec.Type = v1.ServiceTypeNodePort
service.Spec.Ports[0].NodePort = int32(outOfRangeNodePort)
service, err = t.CreateService(service)
if err == nil {
framework.Failf("failed to prevent create of service with out-of-range NodePort (%d): %v", outOfRangeNodePort, service)
}
Expect(fmt.Sprintf("%v", err)).To(MatchRegexp(expectedErr))
})
It("should release NodePorts on delete", func() {
// TODO: use the ServiceTestJig here
serviceName := "nodeport-reuse"
ns := f.Namespace.Name
t := framework.NewServerTest(cs, ns, serviceName)
defer func() {
defer GinkgoRecover()
errs := t.Cleanup()
if len(errs) != 0 {
framework.Failf("errors in cleanup: %v", errs)
}
}()
service := t.BuildServiceSpec()
service.Spec.Type = v1.ServiceTypeNodePort
By("creating service " + serviceName + " with type NodePort in namespace " + ns)
service, err := t.CreateService(service)
Expect(err).NotTo(HaveOccurred())
if service.Spec.Type != v1.ServiceTypeNodePort {
framework.Failf("got unexpected Spec.Type for new service: %v", service)
}
if len(service.Spec.Ports) != 1 {
framework.Failf("got unexpected len(Spec.Ports) for new service: %v", service)
}
port := service.Spec.Ports[0]
if port.NodePort == 0 {
framework.Failf("got unexpected Spec.Ports[0].nodePort for new service: %v", service)
}
if !framework.ServiceNodePortRange.Contains(int(port.NodePort)) {
framework.Failf("got unexpected (out-of-range) port for new service: %v", service)
}
nodePort := port.NodePort
By("deleting original service " + serviceName)
err = t.DeleteService(serviceName)
Expect(err).NotTo(HaveOccurred())