df5d84ae81
Every ginkgo callback should return immediately when a timeout occurs or the
test run manually gets aborted with CTRL-C. To do that, they must take a ctx
parameter and pass it through to all code which might block.
This is a first automated step towards that: the additional parameter got added
with
sed -i 's/\(framework.ConformanceIt\|ginkgo.It\)\(.*\)func() {$/\1\2func(ctx context.Context) {/' \
$(git grep -l -e framework.ConformanceIt -e ginkgo.It )
$GOPATH/bin/goimports -w $(git status | grep modified: | sed -e 's/.* //')
log_test.go was left unchanged.
154 lines
8.6 KiB
Go
154 lines
8.6 KiB
Go
/*
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Copyright 2016 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 network
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import (
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"context"
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"github.com/onsi/ginkgo/v2"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/util/sets"
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"k8s.io/kubernetes/test/e2e/framework"
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e2enetwork "k8s.io/kubernetes/test/e2e/framework/network"
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admissionapi "k8s.io/pod-security-admission/api"
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)
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var _ = SIGDescribe("Networking", func() {
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f := framework.NewDefaultFramework("pod-network-test")
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f.NamespacePodSecurityEnforceLevel = admissionapi.LevelPrivileged
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ginkgo.Describe("Granular Checks: Pods", func() {
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checkPodToPodConnectivity := func(config *e2enetwork.NetworkingTestConfig, protocol string, port int) {
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// breadth first poll to quickly estimate failure.
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failedPodsByHost := map[string][]*v1.Pod{}
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// First time, we'll quickly try all pods, breadth first.
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for _, endpointPod := range config.EndpointPods {
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framework.Logf("Breadth first check of %v on host %v...", endpointPod.Status.PodIP, endpointPod.Status.HostIP)
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if err := config.DialFromTestContainer(protocol, endpointPod.Status.PodIP, port, 1, 0, sets.NewString(endpointPod.Name)); err != nil {
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if _, ok := failedPodsByHost[endpointPod.Status.HostIP]; !ok {
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failedPodsByHost[endpointPod.Status.HostIP] = []*v1.Pod{}
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}
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failedPodsByHost[endpointPod.Status.HostIP] = append(failedPodsByHost[endpointPod.Status.HostIP], endpointPod)
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framework.Logf("...failed...will try again in next pass")
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}
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}
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errors := []error{}
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// Second time, we pass through pods more carefully...
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framework.Logf("Going to retry %v out of %v pods....", len(failedPodsByHost), len(config.EndpointPods))
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for host, failedPods := range failedPodsByHost {
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framework.Logf("Doublechecking %v pods in host %v which weren't seen the first time.", len(failedPods), host)
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for _, endpointPod := range failedPods {
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framework.Logf("Now attempting to probe pod [[[ %v ]]]", endpointPod.Status.PodIP)
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if err := config.DialFromTestContainer(protocol, endpointPod.Status.PodIP, port, config.MaxTries, 0, sets.NewString(endpointPod.Name)); err != nil {
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errors = append(errors, err)
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} else {
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framework.Logf("Was able to reach %v on %v ", endpointPod.Status.PodIP, endpointPod.Status.HostIP)
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}
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framework.Logf("... Done probing pod [[[ %v ]]]", endpointPod.Status.PodIP)
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}
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framework.Logf("succeeded at polling %v out of %v connections", len(config.EndpointPods)-len(errors), len(config.EndpointPods))
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}
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if len(errors) > 0 {
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framework.Logf("pod polling failure summary:")
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for _, e := range errors {
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framework.Logf("Collected error: %v", e)
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}
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framework.Failf("failed, %v out of %v connections failed", len(errors), len(config.EndpointPods))
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}
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}
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// Try to hit all endpoints through a test container, retry 5 times,
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// expect exactly one unique hostname. Each of these endpoints reports
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// its own hostname.
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/*
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Release: v1.9, v1.18
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Testname: Networking, intra pod http
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Description: Create a hostexec pod that is capable of curl to netcat commands. Create a test Pod that will act as a webserver front end exposing ports 8080 for tcp and 8081 for udp. The netserver service proxies are created on specified number of nodes.
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The kubectl exec on the webserver container MUST reach a http port on the each of service proxy endpoints in the cluster and the request MUST be successful. Container will execute curl command to reach the service port within specified max retry limit and MUST result in reporting unique hostnames.
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*/
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framework.ConformanceIt("should function for intra-pod communication: http [NodeConformance]", func(ctx context.Context) {
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config := e2enetwork.NewCoreNetworkingTestConfig(f, false)
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checkPodToPodConnectivity(config, "http", e2enetwork.EndpointHTTPPort)
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})
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/*
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Release: v1.9, v1.18
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Testname: Networking, intra pod udp
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Description: Create a hostexec pod that is capable of curl to netcat commands. Create a test Pod that will act as a webserver front end exposing ports 8080 for tcp and 8081 for udp. The netserver service proxies are created on specified number of nodes.
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The kubectl exec on the webserver container MUST reach a udp port on the each of service proxy endpoints in the cluster and the request MUST be successful. Container will execute curl command to reach the service port within specified max retry limit and MUST result in reporting unique hostnames.
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*/
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framework.ConformanceIt("should function for intra-pod communication: udp [NodeConformance]", func(ctx context.Context) {
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config := e2enetwork.NewCoreNetworkingTestConfig(f, false)
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checkPodToPodConnectivity(config, "udp", e2enetwork.EndpointUDPPort)
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})
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/*
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Release: v1.9
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Testname: Networking, intra pod http, from node
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Description: Create a hostexec pod that is capable of curl to netcat commands. Create a test Pod that will act as a webserver front end exposing ports 8080 for tcp and 8081 for udp. The netserver service proxies are created on specified number of nodes.
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The kubectl exec on the webserver container MUST reach a http port on the each of service proxy endpoints in the cluster using a http post(protocol=tcp) and the request MUST be successful. Container will execute curl command to reach the service port within specified max retry limit and MUST result in reporting unique hostnames.
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This test is marked LinuxOnly it breaks when using Overlay networking with Windows.
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*/
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framework.ConformanceIt("should function for node-pod communication: http [LinuxOnly] [NodeConformance]", func(ctx context.Context) {
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config := e2enetwork.NewCoreNetworkingTestConfig(f, true)
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for _, endpointPod := range config.EndpointPods {
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err := config.DialFromNode("http", endpointPod.Status.PodIP, e2enetwork.EndpointHTTPPort, config.MaxTries, 0, sets.NewString(endpointPod.Name))
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if err != nil {
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framework.Failf("Error dialing HTTP node to pod %v", err)
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}
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}
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})
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/*
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Release: v1.9
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Testname: Networking, intra pod http, from node
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Description: Create a hostexec pod that is capable of curl to netcat commands. Create a test Pod that will act as a webserver front end exposing ports 8080 for tcp and 8081 for udp. The netserver service proxies are created on specified number of nodes.
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The kubectl exec on the webserver container MUST reach a http port on the each of service proxy endpoints in the cluster using a http post(protocol=udp) and the request MUST be successful. Container will execute curl command to reach the service port within specified max retry limit and MUST result in reporting unique hostnames.
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This test is marked LinuxOnly it breaks when using Overlay networking with Windows.
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*/
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framework.ConformanceIt("should function for node-pod communication: udp [LinuxOnly] [NodeConformance]", func(ctx context.Context) {
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config := e2enetwork.NewCoreNetworkingTestConfig(f, true)
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for _, endpointPod := range config.EndpointPods {
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err := config.DialFromNode("udp", endpointPod.Status.PodIP, e2enetwork.EndpointUDPPort, config.MaxTries, 0, sets.NewString(endpointPod.Name))
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if err != nil {
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framework.Failf("Error dialing UDP from node to pod: %v", err)
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}
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}
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})
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// [Disruptive] because it conflicts with tests that call CheckSCTPModuleLoadedOnNodes
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ginkgo.It("should function for intra-pod communication: sctp [LinuxOnly][Feature:SCTPConnectivity][Disruptive]", func(ctx context.Context) {
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config := e2enetwork.NewNetworkingTestConfig(f, e2enetwork.EnableSCTP)
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checkPodToPodConnectivity(config, "sctp", e2enetwork.EndpointSCTPPort)
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})
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// [Disruptive] because it conflicts with tests that call CheckSCTPModuleLoadedOnNodes
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ginkgo.It("should function for node-pod communication: sctp [LinuxOnly][Feature:SCTPConnectivity][Disruptive]", func(ctx context.Context) {
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ginkgo.Skip("Skipping SCTP node to pod test until DialFromNode supports SCTP #96482")
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config := e2enetwork.NewNetworkingTestConfig(f, e2enetwork.EnableSCTP)
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for _, endpointPod := range config.EndpointPods {
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err := config.DialFromNode("sctp", endpointPod.Status.PodIP, e2enetwork.EndpointSCTPPort, config.MaxTries, 0, sets.NewString(endpointPod.Name))
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if err != nil {
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framework.Failf("Error dialing SCTP from node to pod: %v", err)
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}
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}
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})
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})
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})
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