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https://github.com/k3s-io/kubernetes.git
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e2e use functional options to configure NetworkingTest
NetworkingTest is used to test different network scenarios. Since new capabilites and scenarios are added, like SCTP or HostNetwork for pods, we need a way to configure it with minimum disruption and code changes. Go idiomatic way to achieve this is using functional options.
This commit is contained in:
Antonio Ojea
parent
d382f299a1
commit
734d5bbed0
@ -90,9 +90,34 @@ const (
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// NetexecImageName is the image name for agnhost.
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var NetexecImageName = imageutils.GetE2EImage(imageutils.Agnhost)
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// Option is used to configure the NetworkingTest object
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type Option func(*NetworkingTestConfig)
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// EnableSCTP listen on SCTP ports on the endpoints
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func EnableSCTP(config *NetworkingTestConfig) {
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config.SCTPEnabled = true
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}
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// UseHostNetwork run the test container with HostNetwork=true.
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func UseHostNetwork(config *NetworkingTestConfig) {
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config.HostNetwork = true
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}
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// EndpointsUseHostNetwork run the endpoints pods with HostNetwork=true.
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func EndpointsUseHostNetwork(config *NetworkingTestConfig) {
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config.EndpointsHostNetwork = true
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}
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// NewNetworkingTestConfig creates and sets up a new test config helper.
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func NewNetworkingTestConfig(f *framework.Framework, hostNetwork, SCTPEnabled bool) *NetworkingTestConfig {
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config := &NetworkingTestConfig{f: f, Namespace: f.Namespace.Name, HostNetwork: hostNetwork, SCTPEnabled: SCTPEnabled}
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func NewNetworkingTestConfig(f *framework.Framework, setters ...Option) *NetworkingTestConfig {
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// default options
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config := &NetworkingTestConfig{
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f: f,
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Namespace: f.Namespace.Name,
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}
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for _, setter := range setters {
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setter(config)
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}
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ginkgo.By(fmt.Sprintf("Performing setup for networking test in namespace %v", config.Namespace))
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config.setup(getServiceSelector())
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return config
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@ -100,7 +125,12 @@ func NewNetworkingTestConfig(f *framework.Framework, hostNetwork, SCTPEnabled bo
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// NewCoreNetworkingTestConfig creates and sets up a new test config helper for Node E2E.
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func NewCoreNetworkingTestConfig(f *framework.Framework, hostNetwork bool) *NetworkingTestConfig {
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config := &NetworkingTestConfig{f: f, Namespace: f.Namespace.Name, HostNetwork: hostNetwork}
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// default options
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config := &NetworkingTestConfig{
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f: f,
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Namespace: f.Namespace.Name,
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HostNetwork: hostNetwork,
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}
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ginkgo.By(fmt.Sprintf("Performing setup for networking test in namespace %v", config.Namespace))
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config.setupCore(getServiceSelector())
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return config
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@ -125,6 +155,8 @@ type NetworkingTestConfig struct {
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HostTestContainerPod *v1.Pod
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// if the HostTestContainerPod is running with HostNetwork=true.
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HostNetwork bool
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// if the endpoints Pods are running with HostNetwork=true.
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EndpointsHostNetwork bool
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// if the test pods are listening on sctp port. We need this as sctp tests
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// are marked as disruptive as they may load the sctp module.
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SCTPEnabled bool
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@ -213,8 +245,12 @@ func (config *NetworkingTestConfig) diagnoseMissingEndpoints(foundEndpoints sets
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func (config *NetworkingTestConfig) EndpointHostnames() sets.String {
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expectedEps := sets.NewString()
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for _, p := range config.EndpointPods {
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if config.EndpointsHostNetwork {
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expectedEps.Insert(p.Spec.NodeSelector["kubernetes.io/hostname"])
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} else {
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expectedEps.Insert(p.Name)
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}
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}
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return expectedEps
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}
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@ -745,6 +781,7 @@ func (config *NetworkingTestConfig) createNetProxyPods(podName string, selector
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hostname, _ := n.Labels["kubernetes.io/hostname"]
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pod := config.createNetShellPodSpec(podName, hostname)
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pod.ObjectMeta.Labels = selector
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pod.Spec.HostNetwork = config.EndpointsHostNetwork
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createdPod := config.createPod(pod)
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createdPods = append(createdPods, createdPod)
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}
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@ -136,7 +136,7 @@ var _ = SIGDescribe("Networking", func() {
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ginkgo.It("should check kube-proxy urls", func() {
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// TODO: this is overkill we just need the host networking pod
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// to hit kube-proxy urls.
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config := e2enetwork.NewNetworkingTestConfig(f, true, false)
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config := e2enetwork.NewNetworkingTestConfig(f, e2enetwork.UseHostNetwork)
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ginkgo.By("checking kube-proxy URLs")
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config.GetSelfURL(ports.ProxyHealthzPort, "/healthz", "200 OK")
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@ -149,7 +149,7 @@ var _ = SIGDescribe("Networking", func() {
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ginkgo.Describe("Granular Checks: Services", func() {
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ginkgo.It("should function for pod-Service: http", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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ginkgo.By(fmt.Sprintf("dialing(http) %v --> %v:%v (config.clusterIP)", config.TestContainerPod.Name, config.ClusterIP, e2enetwork.ClusterHTTPPort))
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err := config.DialFromTestContainer("http", config.ClusterIP, e2enetwork.ClusterHTTPPort, config.MaxTries, 0, config.EndpointHostnames())
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if err != nil {
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@ -164,7 +164,7 @@ var _ = SIGDescribe("Networking", func() {
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})
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ginkgo.It("should function for pod-Service: udp", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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ginkgo.By(fmt.Sprintf("dialing(udp) %v --> %v:%v (config.clusterIP)", config.TestContainerPod.Name, config.ClusterIP, e2enetwork.ClusterUDPPort))
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err := config.DialFromTestContainer("udp", config.ClusterIP, e2enetwork.ClusterUDPPort, config.MaxTries, 0, config.EndpointHostnames())
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if err != nil {
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@ -181,7 +181,7 @@ var _ = SIGDescribe("Networking", func() {
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// Once basic tests checking for the sctp module not to be loaded are implemented, this
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// needs to be marked as [Disruptive]
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ginkgo.It("should function for pod-Service: sctp [Feature:SCTPConnectivity][Disruptive]", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, false, true)
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config := e2enetwork.NewNetworkingTestConfig(f, e2enetwork.EnableSCTP)
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ginkgo.By(fmt.Sprintf("dialing(sctp) %v --> %v:%v (config.clusterIP)", config.TestContainerPod.Name, config.ClusterIP, e2enetwork.ClusterSCTPPort))
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err := config.DialFromTestContainer("sctp", config.ClusterIP, e2enetwork.ClusterSCTPPort, config.MaxTries, 0, config.EndpointHostnames())
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if err != nil {
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@ -195,7 +195,7 @@ var _ = SIGDescribe("Networking", func() {
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})
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ginkgo.It("should function for node-Service: http", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, true, false)
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config := e2enetwork.NewNetworkingTestConfig(f, e2enetwork.UseHostNetwork)
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ginkgo.By(fmt.Sprintf("dialing(http) %v (node) --> %v:%v (config.clusterIP)", config.NodeIP, config.ClusterIP, e2enetwork.ClusterHTTPPort))
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err := config.DialFromNode("http", config.ClusterIP, e2enetwork.ClusterHTTPPort, config.MaxTries, 0, config.EndpointHostnames())
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if err != nil {
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@ -209,7 +209,7 @@ var _ = SIGDescribe("Networking", func() {
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})
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ginkgo.It("should function for node-Service: udp", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, true, false)
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config := e2enetwork.NewNetworkingTestConfig(f, e2enetwork.UseHostNetwork)
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ginkgo.By(fmt.Sprintf("dialing(udp) %v (node) --> %v:%v (config.clusterIP)", config.NodeIP, config.ClusterIP, e2enetwork.ClusterUDPPort))
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err := config.DialFromNode("udp", config.ClusterIP, e2enetwork.ClusterUDPPort, config.MaxTries, 0, config.EndpointHostnames())
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if err != nil {
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@ -223,7 +223,7 @@ var _ = SIGDescribe("Networking", func() {
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})
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ginkgo.It("should function for endpoint-Service: http", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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ginkgo.By(fmt.Sprintf("dialing(http) %v (endpoint) --> %v:%v (config.clusterIP)", config.EndpointPods[0].Name, config.ClusterIP, e2enetwork.ClusterHTTPPort))
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err := config.DialFromEndpointContainer("http", config.ClusterIP, e2enetwork.ClusterHTTPPort, config.MaxTries, 0, config.EndpointHostnames())
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if err != nil {
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@ -237,7 +237,7 @@ var _ = SIGDescribe("Networking", func() {
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})
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ginkgo.It("should function for endpoint-Service: udp", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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ginkgo.By(fmt.Sprintf("dialing(udp) %v (endpoint) --> %v:%v (config.clusterIP)", config.EndpointPods[0].Name, config.ClusterIP, e2enetwork.ClusterUDPPort))
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err := config.DialFromEndpointContainer("udp", config.ClusterIP, e2enetwork.ClusterUDPPort, config.MaxTries, 0, config.EndpointHostnames())
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if err != nil {
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@ -254,7 +254,7 @@ var _ = SIGDescribe("Networking", func() {
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// This test ensures that in a situation where multiple services exist with the same selector,
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// deleting one of the services does not affect the connectivity of the remaining service
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ginkgo.It("should function for multiple endpoint-Services with same selector", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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ginkgo.By("creating a second service with same selector")
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svc2, httpPort := createSecondNodePortService(f, config)
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@ -299,7 +299,7 @@ var _ = SIGDescribe("Networking", func() {
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})
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ginkgo.It("should update endpoints: http", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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ginkgo.By(fmt.Sprintf("dialing(http) %v --> %v:%v (config.clusterIP)", config.TestContainerPod.Name, config.ClusterIP, e2enetwork.ClusterHTTPPort))
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err := config.DialFromTestContainer("http", config.ClusterIP, e2enetwork.ClusterHTTPPort, config.MaxTries, 0, config.EndpointHostnames())
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if err != nil {
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@ -316,7 +316,7 @@ var _ = SIGDescribe("Networking", func() {
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})
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ginkgo.It("should update endpoints: udp", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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ginkgo.By(fmt.Sprintf("dialing(udp) %v --> %v:%v (config.clusterIP)", config.TestContainerPod.Name, config.ClusterIP, e2enetwork.ClusterUDPPort))
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err := config.DialFromTestContainer("udp", config.ClusterIP, e2enetwork.ClusterUDPPort, config.MaxTries, 0, config.EndpointHostnames())
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if err != nil {
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@ -334,7 +334,7 @@ var _ = SIGDescribe("Networking", func() {
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// Slow because we confirm that the nodePort doesn't serve traffic, which requires a period of polling.
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ginkgo.It("should update nodePort: http [Slow]", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, true, false)
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config := e2enetwork.NewNetworkingTestConfig(f, e2enetwork.UseHostNetwork)
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ginkgo.By(fmt.Sprintf("dialing(http) %v (node) --> %v:%v (nodeIP) and getting ALL host endpoints", config.NodeIP, config.NodeIP, config.NodeHTTPPort))
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err := config.DialFromNode("http", config.NodeIP, config.NodeHTTPPort, config.MaxTries, 0, config.EndpointHostnames())
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if err != nil {
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@ -352,7 +352,7 @@ var _ = SIGDescribe("Networking", func() {
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// quick validation of udp, next test confirms that this services update as well after endpoints are removed, but is slower.
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ginkgo.It("should support basic nodePort: udp functionality", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, true, false)
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config := e2enetwork.NewNetworkingTestConfig(f, e2enetwork.UseHostNetwork)
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ginkgo.By(fmt.Sprintf("dialing(udp) %v (node) --> %v:%v (nodeIP) and getting ALL host endpoints", config.NodeIP, config.NodeIP, config.NodeUDPPort))
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err := config.DialFromNode("udp", config.NodeIP, config.NodeUDPPort, config.MaxTries, 0, config.EndpointHostnames())
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if err != nil {
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@ -362,7 +362,7 @@ var _ = SIGDescribe("Networking", func() {
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// Slow because we confirm that the nodePort doesn't serve traffic, which requires a period of polling.
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ginkgo.It("should update nodePort: udp [Slow]", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, true, false)
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config := e2enetwork.NewNetworkingTestConfig(f, e2enetwork.UseHostNetwork)
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ginkgo.By(fmt.Sprintf("dialing(udp) %v (node) --> %v:%v (nodeIP) and getting ALL host endpoints", config.NodeIP, config.NodeIP, config.NodeUDPPort))
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err := config.DialFromNode("udp", config.NodeIP, config.NodeUDPPort, config.MaxTries, 0, config.EndpointHostnames())
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if err != nil {
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@ -381,7 +381,7 @@ var _ = SIGDescribe("Networking", func() {
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// [LinuxOnly]: Windows does not support session affinity.
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ginkgo.It("should function for client IP based session affinity: http [LinuxOnly]", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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ginkgo.By(fmt.Sprintf("dialing(http) %v --> %v:%v", config.TestContainerPod.Name, config.SessionAffinityService.Spec.ClusterIP, e2enetwork.ClusterHTTPPort))
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// Check if number of endpoints returned are exactly one.
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@ -399,7 +399,7 @@ var _ = SIGDescribe("Networking", func() {
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// [LinuxOnly]: Windows does not support session affinity.
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ginkgo.It("should function for client IP based session affinity: udp [LinuxOnly]", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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ginkgo.By(fmt.Sprintf("dialing(udp) %v --> %v:%v", config.TestContainerPod.Name, config.SessionAffinityService.Spec.ClusterIP, e2enetwork.ClusterUDPPort))
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// Check if number of endpoints returned are exactly one.
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@ -416,7 +416,7 @@ var _ = SIGDescribe("Networking", func() {
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})
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ginkgo.It("should be able to handle large requests: http", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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ginkgo.By(fmt.Sprintf("dialing(http) %v --> %v:%v (config.clusterIP)", config.TestContainerPod.Name, config.ClusterIP, e2enetwork.ClusterHTTPPort))
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message := strings.Repeat("42", 1000)
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err := config.DialEchoFromTestContainer("http", config.ClusterIP, e2enetwork.ClusterHTTPPort, config.MaxTries, 0, message)
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@ -426,7 +426,7 @@ var _ = SIGDescribe("Networking", func() {
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})
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ginkgo.It("should be able to handle large requests: udp", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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ginkgo.By(fmt.Sprintf("dialing(udp) %v --> %v:%v (config.clusterIP)", config.TestContainerPod.Name, config.ClusterIP, e2enetwork.ClusterUDPPort))
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message := "n" + strings.Repeat("o", 1999)
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err := config.DialEchoFromTestContainer("udp", config.ClusterIP, e2enetwork.ClusterUDPPort, config.MaxTries, 0, message)
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@ -439,7 +439,7 @@ var _ = SIGDescribe("Networking", func() {
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// Once basic tests checking for the sctp module not to be loaded are implemented, this
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// needs to be marked as [Disruptive]
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ginkgo.It("should function for pod-pod: sctp [Feature:SCTPConnectivity][Disruptive]", func() {
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config := e2enetwork.NewNetworkingTestConfig(f, false, true)
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config := e2enetwork.NewNetworkingTestConfig(f, e2enetwork.EnableSCTP)
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ginkgo.By(fmt.Sprintf("dialing(sctp) %v --> %v:%v (config.clusterIP)", config.TestContainerPod.Name, config.ClusterIP, e2enetwork.ClusterSCTPPort))
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message := "hello"
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err := config.DialEchoFromTestContainer("sctp", config.TestContainerPod.Status.PodIP, e2enetwork.EndpointSCTPPort, config.MaxTries, 0, message)
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@ -2997,7 +2997,7 @@ var _ = SIGDescribe("ESIPP [Slow]", func() {
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const threshold = 2
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nodes, err := getEndpointNodesWithInternalIP(jig)
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framework.ExpectNoError(err)
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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for _, internalIP := range nodes {
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err := testHTTPHealthCheckNodePortFromTestContainer(
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config,
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@ -3044,7 +3044,7 @@ var _ = SIGDescribe("ESIPP [Slow]", func() {
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framework.ExpectNoError(err)
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dialCmd := "clientip"
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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for nodeName, nodeIP := range endpointsNodeMap {
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ginkgo.By(fmt.Sprintf("reading clientIP using the TCP service's NodePort, on node %v: %v:%v/%v", nodeName, nodeIP, tcpNodePort, dialCmd))
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@ -3095,7 +3095,7 @@ var _ = SIGDescribe("ESIPP [Slow]", func() {
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svcTCPPort := int(svc.Spec.Ports[0].Port)
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const threshold = 2
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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for i := 0; i < len(nodes.Items); i++ {
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endpointNodeName := nodes.Items[i].Name
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@ -3260,7 +3260,7 @@ var _ = SIGDescribe("ESIPP [Slow]", func() {
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path := "/clientip"
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dialCmd := "clientip"
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config := e2enetwork.NewNetworkingTestConfig(f, false, false)
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config := e2enetwork.NewNetworkingTestConfig(f)
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ginkgo.By(fmt.Sprintf("endpoints present on nodes %v, absent on nodes %v", endpointNodeMap, noEndpointNodeMap))
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for nodeName, nodeIP := range noEndpointNodeMap {
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