mirror of
https://github.com/k3s-io/k3s.git
synced 2026-02-20 00:10:20 -05:00
192 lines
7.2 KiB
Go
192 lines
7.2 KiB
Go
package dualstack
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import (
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"flag"
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"fmt"
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"os"
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"strings"
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"testing"
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"github.com/k3s-io/k3s/tests"
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"github.com/k3s-io/k3s/tests/e2e"
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. "github.com/onsi/ginkgo/v2"
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. "github.com/onsi/gomega"
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)
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// Valid nodeOS: bento/ubuntu-24.04, opensuse/Leap-15.6.x86_64
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var nodeOS = flag.String("nodeOS", "bento/ubuntu-24.04", "VM operating system")
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var serverCount = flag.Int("serverCount", 3, "number of server nodes")
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var agentCount = flag.Int("agentCount", 1, "number of agent nodes")
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var hardened = flag.Bool("hardened", false, "true or false")
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var ci = flag.Bool("ci", false, "running on CI")
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var local = flag.Bool("local", false, "deploy a locally built K3s binary")
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func Test_E2EDualStack(t *testing.T) {
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flag.Parse()
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RegisterFailHandler(Fail)
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suiteConfig, reporterConfig := GinkgoConfiguration()
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RunSpecs(t, "DualStack Test Suite", suiteConfig, reporterConfig)
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}
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var tc *e2e.TestConfig
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var _ = ReportAfterEach(e2e.GenReport)
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var _ = Describe("Verify DualStack Configuration", Ordered, func() {
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Context("Cluster Deploys with both IPv6 and IPv4 networks", func() {
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It("Starts up with no issues", func() {
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var err error
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if *local {
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tc, err = e2e.CreateLocalCluster(*nodeOS, *serverCount, *agentCount)
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} else {
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tc, err = e2e.CreateCluster(*nodeOS, *serverCount, *agentCount)
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}
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Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
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tc.Hardened = *hardened
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By("CLUSTER CONFIG")
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By("OS: " + *nodeOS)
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By(tc.Status())
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})
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It("Checks Node Status", func() {
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Eventually(func() error {
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return tests.NodesReady(tc.KubeconfigFile, e2e.VagrantSlice(tc.AllNodes()))
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}, "620s", "5s").Should(Succeed())
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e2e.DumpNodes(tc.KubeconfigFile)
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})
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It("Checks pod status", func() {
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Eventually(func() error {
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return tests.AllPodsUp(tc.KubeconfigFile, "kube-system")
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}, "620s", "5s").Should(Succeed())
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e2e.DumpPods(tc.KubeconfigFile)
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})
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It("Verifies that each node has IPv4 and IPv6", func() {
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nodeIPs, err := e2e.GetNodeIPs(tc.KubeconfigFile)
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Expect(err).NotTo(HaveOccurred())
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for _, node := range nodeIPs {
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Expect(node.IPv4).Should(ContainSubstring("10.10.10"))
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Expect(node.IPv6).Should(ContainSubstring("fd11:decf:c0ff"))
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}
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})
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It("Verifies that each pod has IPv4 and IPv6", func() {
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pods, err := tests.ParsePods(tc.KubeconfigFile, "kube-system")
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Expect(err).NotTo(HaveOccurred())
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for _, pod := range pods {
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ips, err := tests.GetPodIPs(pod.Name, pod.Namespace, tc.KubeconfigFile)
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Expect(err).NotTo(HaveOccurred(), "failed to get pod IPs for "+pod.Name)
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Expect(ips).To(ContainElements(
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Or(ContainSubstring("172.18.0"), ContainSubstring("10.42.")),
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Or(ContainSubstring("fd11:decf:c0ff"), ContainSubstring("2001:cafe:42")),
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))
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}
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})
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It("Verifies ClusterIP Service", func() {
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_, err := tc.DeployWorkload("dualstack_clusterip.yaml")
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Expect(err).NotTo(HaveOccurred())
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Eventually(func() (string, error) {
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cmd := "kubectl get pods -o=name -l k8s-app=nginx-app-clusterip --field-selector=status.phase=Running --kubeconfig=" + tc.KubeconfigFile
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return tests.RunCommand(cmd)
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}, "120s", "5s").Should(ContainSubstring("ds-clusterip-pod"))
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// Checks both IPv4 and IPv6
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clusterips, err := e2e.FetchClusterIP(tc.KubeconfigFile, "ds-clusterip-svc", true)
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Expect(err).NotTo(HaveOccurred())
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for _, ip := range strings.Split(clusterips, ",") {
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if strings.Contains(ip, "::") {
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ip = "[" + ip + "]"
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}
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pods, err := tests.ParsePods(tc.KubeconfigFile, "kube-system")
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Expect(err).NotTo(HaveOccurred())
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for _, pod := range pods {
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if !strings.HasPrefix(pod.Name, "ds-clusterip-pod") {
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continue
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}
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cmd := fmt.Sprintf("curl -m 5 -s -f http://%s", ip)
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Eventually(func() (string, error) {
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return tc.Servers[0].RunCmdOnNode(cmd)
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}, "60s", "5s").Should(ContainSubstring("Welcome to nginx!"), "failed cmd: "+cmd)
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}
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}
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})
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It("Verifies Ingress", func() {
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_, err := tc.DeployWorkload("dualstack_ingress.yaml")
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Expect(err).NotTo(HaveOccurred(), "Ingress manifest not deployed")
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cmd := "kubectl get ingress ds-ingress -o jsonpath=\"{.spec.rules[*].host}\""
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hostName, err := tests.RunCommand(cmd)
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Expect(err).NotTo(HaveOccurred(), "failed cmd: "+cmd)
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nodeIPs, err := e2e.GetNodeIPs(tc.KubeconfigFile)
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Expect(err).NotTo(HaveOccurred(), "failed cmd: "+cmd)
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for _, node := range nodeIPs {
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cmd := fmt.Sprintf("curl --header host:%s -m 5 -s -f http://%s/name.html", hostName, node.IPv4)
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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "10s", "2s").Should(ContainSubstring("ds-clusterip-pod"), "failed cmd: "+cmd)
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cmd = fmt.Sprintf("curl --header host:%s -m 5 -s -f http://[%s]/name.html", hostName, node.IPv6)
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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "5s", "1s").Should(ContainSubstring("ds-clusterip-pod"), "failed cmd: "+cmd)
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}
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})
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It("Verifies NodePort Service", func() {
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_, err := tc.DeployWorkload("dualstack_nodeport.yaml")
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Expect(err).NotTo(HaveOccurred())
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cmd := "kubectl get service ds-nodeport-svc --output jsonpath=\"{.spec.ports[0].nodePort}\""
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nodeport, err := tests.RunCommand(cmd)
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Expect(err).NotTo(HaveOccurred(), "failed cmd: "+cmd)
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nodeIPs, err := e2e.GetNodeIPs(tc.KubeconfigFile)
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Expect(err).NotTo(HaveOccurred())
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for _, node := range nodeIPs {
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cmd = "curl -m 5 -s -f http://" + node.IPv4 + ":" + nodeport + "/name.html"
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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "10s", "1s").Should(ContainSubstring("ds-nodeport-pod"), "failed cmd: "+cmd)
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cmd = "curl -m 5 -s -f http://[" + node.IPv6 + "]:" + nodeport + "/name.html"
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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "10s", "1s").Should(ContainSubstring("ds-nodeport-pod"), "failed cmd: "+cmd)
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}
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})
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It("Verifies podSelector Network Policy", func() {
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_, err := tc.DeployWorkload("pod_client.yaml")
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Expect(err).NotTo(HaveOccurred())
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cmd := "kubectl exec svc/client-wget -- wget -T 5 -O - -q http://ds-clusterip-svc/name.html"
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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "20s", "3s").Should(ContainSubstring("ds-clusterip-pod"), "failed cmd: "+cmd)
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_, err = tc.DeployWorkload("netpol-fail.yaml")
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Expect(err).NotTo(HaveOccurred())
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cmd = "kubectl exec svc/client-wget -- wget -T 5 -O - -q http://ds-clusterip-svc/name.html"
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Consistently(func() error {
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_, err = tests.RunCommand(cmd)
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return err
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}, "20s", "3s").ShouldNot(Succeed())
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_, err = tc.DeployWorkload("netpol-work.yaml")
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Expect(err).NotTo(HaveOccurred())
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cmd = "kubectl exec svc/client-wget -- wget -T 5 -O - -q http://ds-clusterip-svc/name.html"
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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "20s", "3s").Should(ContainSubstring("ds-clusterip-pod"), "failed cmd: "+cmd)
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})
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})
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})
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var failed bool
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var _ = AfterEach(func() {
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failed = failed || CurrentSpecReport().Failed()
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})
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var _ = AfterSuite(func() {
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if failed {
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AddReportEntry("journald-logs", e2e.TailJournalLogs(1000, tc.AllNodes()))
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} else {
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Expect(e2e.GetCoverageReport(tc.AllNodes())).To(Succeed())
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}
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if !failed || *ci {
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Expect(e2e.DestroyCluster()).To(Succeed())
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Expect(os.Remove(tc.KubeconfigFile)).To(Succeed())
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}
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})
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