mirror of
https://github.com/k3s-io/k3s.git
synced 2026-04-09 11:27:08 -04:00
303 lines
12 KiB
Go
303 lines
12 KiB
Go
package splitserver
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import (
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"context"
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"flag"
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"fmt"
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"os"
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"strconv"
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"strings"
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"testing"
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"time"
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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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"golang.org/x/sync/errgroup"
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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 etcdCount = flag.Int("etcdCount", 3, "number of server nodes only deploying etcd")
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var controlPlaneCount = flag.Int("controlPlaneCount", 1, "number of server nodes acting as control plane")
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var agentCount = flag.Int("agentCount", 1, "number of agent nodes")
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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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var hardened = flag.Bool("hardened", false, "true or false")
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// Environment Variables Info:
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// E2E_RELEASE_VERSION=v1.23.1+k3s2 or nil for latest commit from main
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// createSplitCluster creates a split server cluster with the given nodeOS, etcdCount, controlPlaneCount, and agentCount.
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// It duplicates and merges functionality found in the e2e.CreateCluster and e2e.CreateLocalCluster functions.
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func createSplitCluster(nodeOS string, etcdCount, controlPlaneCount, agentCount int, local bool) ([]e2e.VagrantNode, []e2e.VagrantNode, []e2e.VagrantNode, error) {
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etcdNodes := make([]e2e.VagrantNode, etcdCount)
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cpNodes := make([]e2e.VagrantNode, controlPlaneCount)
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agentNodes := make([]e2e.VagrantNode, agentCount)
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for i := 0; i < etcdCount; i++ {
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etcdNodes[i] = e2e.VagrantNode{Name: "server-etcd-" + strconv.Itoa(i)}
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}
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for i := 0; i < controlPlaneCount; i++ {
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cpNodes[i] = e2e.VagrantNode{Name: "server-cp-" + strconv.Itoa(i)}
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}
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for i := 0; i < agentCount; i++ {
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agentNodes[i] = e2e.VagrantNode{Name: "agent-" + strconv.Itoa(i)}
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}
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nodeRoles := strings.Join(e2e.VagrantSlice(etcdNodes), " ") + " " + strings.Join(e2e.VagrantSlice(cpNodes), " ") + " " + strings.Join(e2e.VagrantSlice(agentNodes), " ")
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nodeRoles = strings.TrimSpace(nodeRoles)
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nodeBoxes := strings.Repeat(nodeOS+" ", etcdCount+controlPlaneCount+agentCount)
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nodeBoxes = strings.TrimSpace(nodeBoxes)
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allNodeNames := append(e2e.VagrantSlice(etcdNodes), e2e.VagrantSlice(cpNodes)...)
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allNodeNames = append(allNodeNames, e2e.VagrantSlice(agentNodes)...)
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var testOptions string
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for _, env := range os.Environ() {
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if strings.HasPrefix(env, "E2E_") {
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testOptions += " " + env
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}
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}
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// Provision the first etcd node. In GitHub Actions, this also imports the VM image into libvirt, which
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// takes time and can cause the next vagrant up to fail if it is not given enough time to complete.
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cmd := fmt.Sprintf(`E2E_NODE_ROLES="%s" E2E_NODE_BOXES="%s" vagrant up --no-tty --no-provision %s &> vagrant.log`, nodeRoles, nodeBoxes, etcdNodes[0].Name)
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fmt.Println(cmd)
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if _, err := tests.RunCommand(cmd); err != nil {
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return etcdNodes, cpNodes, agentNodes, err
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}
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// Bring up the rest of the nodes in parallel
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errg, _ := errgroup.WithContext(context.Background())
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for _, node := range allNodeNames[1:] {
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cmd := fmt.Sprintf(`E2E_NODE_ROLES="%s" E2E_NODE_BOXES="%s" vagrant up --no-tty --no-provision %s &>> vagrant.log`, nodeRoles, nodeBoxes, node)
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errg.Go(func() error {
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_, err := tests.RunCommand(cmd)
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return err
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})
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// libVirt/Virtualbox needs some time between provisioning nodes
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time.Sleep(2 * time.Second)
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}
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if err := errg.Wait(); err != nil {
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return etcdNodes, cpNodes, agentNodes, err
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}
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if local {
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testOptions += " E2E_RELEASE_VERSION=skip"
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for _, node := range allNodeNames {
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cmd := fmt.Sprintf(`E2E_NODE_ROLES=%s vagrant scp ../../../dist/artifacts/k3s %s:/tmp/`, node, node)
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if _, err := tests.RunCommand(cmd); err != nil {
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return etcdNodes, cpNodes, agentNodes, fmt.Errorf("failed to scp k3s binary to %s: %v", node, err)
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}
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cmd = fmt.Sprintf(`E2E_NODE_ROLES=%s vagrant ssh %s -c "sudo mv /tmp/k3s /usr/local/bin/"`, node, node)
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if _, err := tests.RunCommand(cmd); err != nil {
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return etcdNodes, cpNodes, agentNodes, err
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}
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}
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}
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// Install K3s on all nodes in parallel
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errg, _ = errgroup.WithContext(context.Background())
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for _, node := range allNodeNames {
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cmd = fmt.Sprintf(`E2E_NODE_ROLES="%s" E2E_NODE_BOXES="%s" %s vagrant provision %s &>> vagrant.log`, nodeRoles, nodeBoxes, testOptions, node)
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errg.Go(func() error {
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_, err := tests.RunCommand(cmd)
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return err
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})
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// libVirt/Virtualbox needs some time between provisioning nodes
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time.Sleep(2 * time.Second)
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}
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if err := errg.Wait(); err != nil {
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return etcdNodes, cpNodes, agentNodes, err
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}
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return etcdNodes, cpNodes, agentNodes, nil
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}
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func Test_E2ESplitServer(t *testing.T) {
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RegisterFailHandler(Fail)
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flag.Parse()
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suiteConfig, reporterConfig := GinkgoConfiguration()
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RunSpecs(t, "Split Server Test Suite", suiteConfig, reporterConfig)
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}
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var _ = ReportAfterEach(e2e.GenReport)
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var _ = DescribeTableSubtree("Verify Create", Ordered, func(startFlags string) {
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var (
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tc *e2e.TestConfig // We don't use the Server and Agents from this
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etcdNodes []e2e.VagrantNode
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cpNodes []e2e.VagrantNode
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agentNodes []e2e.VagrantNode
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allNodes []e2e.VagrantNode
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failed bool
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)
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Context("Cluster :", func() {
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It("Starts up with no issues", func() {
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var err error
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etcdNodes, cpNodes, agentNodes, err = createSplitCluster(*nodeOS, *etcdCount, *controlPlaneCount, *agentCount, *local)
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Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
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fmt.Println("CLUSTER CONFIG")
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fmt.Println("OS:", *nodeOS)
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fmt.Println("Etcd Server Nodes:", etcdNodes)
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fmt.Println("Control Plane Server Nodes:", cpNodes)
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fmt.Println("Agent Nodes:", agentNodes)
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for _, node := range append(etcdNodes, cpNodes...) {
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cmd := fmt.Sprintf("systemctl start k3s %s", startFlags)
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_, err := node.RunCmdOnNode(cmd)
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Expect(err).NotTo(HaveOccurred(), "failed to start k3s")
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}
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for _, node := range agentNodes {
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cmd := fmt.Sprintf("systemctl start k3s-agent %s", startFlags)
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_, err := node.RunCmdOnNode(cmd)
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Expect(err).NotTo(HaveOccurred(), "failed to start k3s-agent")
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}
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Eventually(func() error {
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kubeConfigFile, err := e2e.GenKubeconfigFile(cpNodes[0].Name)
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tc = &e2e.TestConfig{
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KubeconfigFile: kubeConfigFile,
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Hardened: *hardened,
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}
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return err
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}, "60s", "5s").Should(Succeed(), "failed to get admin kubeconfig")
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})
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It("Checks node and pod status", func() {
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allNodes = append(cpNodes, etcdNodes...)
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allNodes = append(allNodes, agentNodes...)
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fmt.Printf("\nFetching Nodes status\n")
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Eventually(func() error {
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return tests.NodesReady(tc.KubeconfigFile, e2e.VagrantSlice(allNodes))
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}, "620s", "5s").Should(Succeed())
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e2e.DumpNodes(tc.KubeconfigFile)
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fmt.Printf("\nFetching Pods status\n")
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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 ClusterIP Service", func() {
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_, err := tc.DeployWorkload("clusterip.yaml")
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Expect(err).NotTo(HaveOccurred(), "Cluster IP manifest not deployed")
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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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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "240s", "5s").Should(ContainSubstring("test-clusterip"), "failed cmd: "+cmd)
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clusterip, _ := e2e.FetchClusterIP(tc.KubeconfigFile, "nginx-clusterip-svc", false)
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cmd = "curl -m 5 -s -f http://" + clusterip + "/name.html"
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for _, node := range cpNodes {
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Eventually(func() (string, error) {
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return node.RunCmdOnNode(cmd)
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}, "120s", "10s").Should(ContainSubstring("test-clusterip"), "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("nodeport.yaml")
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Expect(err).NotTo(HaveOccurred(), "NodePort manifest not deployed")
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for _, node := range cpNodes {
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nodeExternalIP, _ := node.FetchNodeExternalIP()
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cmd := "kubectl get service nginx-nodeport-svc --kubeconfig=" + tc.KubeconfigFile + " --output jsonpath=\"{.spec.ports[0].nodePort}\""
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nodeport, err := tests.RunCommand(cmd)
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Expect(err).NotTo(HaveOccurred())
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cmd = "kubectl get pods -o=name -l k8s-app=nginx-app-nodeport --field-selector=status.phase=Running --kubeconfig=" + tc.KubeconfigFile
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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "240s", "5s").Should(ContainSubstring("test-nodeport"), "nodeport pod was not created")
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cmd = "curl -m 5 -s -f http://" + nodeExternalIP + ":" + nodeport + "/name.html"
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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "240s", "5s").Should(ContainSubstring("test-nodeport"), "failed cmd: "+cmd)
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}
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})
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It("Verifies LoadBalancer Service", func() {
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_, err := tc.DeployWorkload("loadbalancer.yaml")
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Expect(err).NotTo(HaveOccurred(), "Loadbalancer manifest not deployed")
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for _, node := range cpNodes {
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ip, _ := node.FetchNodeExternalIP()
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cmd := "kubectl get service nginx-loadbalancer-svc --kubeconfig=" + tc.KubeconfigFile + " --output jsonpath=\"{.spec.ports[0].port}\""
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port, err := tests.RunCommand(cmd)
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Expect(err).NotTo(HaveOccurred())
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cmd = "kubectl get pods -o=name -l k8s-app=nginx-app-loadbalancer --field-selector=status.phase=Running --kubeconfig=" + tc.KubeconfigFile
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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "240s", "5s").Should(ContainSubstring("test-loadbalancer"), "failed cmd: "+cmd)
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cmd = "curl -m 5 -s -f http://" + ip + ":" + port + "/name.html"
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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "240s", "5s").Should(ContainSubstring("test-loadbalancer"), "failed cmd: "+cmd)
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}
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})
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It("Verifies Ingress", func() {
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_, err := tc.DeployWorkload("ingress.yaml")
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Expect(err).NotTo(HaveOccurred(), "Ingress manifest not deployed")
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for _, node := range cpNodes {
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ip, _ := node.FetchNodeExternalIP()
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cmd := "curl -m 5 -s -f -H 'foo1.bar.com' http://" + ip + "/name.html"
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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "240s", "5s").Should(ContainSubstring("test-ingress"), "failed cmd: "+cmd)
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}
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})
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It("Verifies Daemonset", func() {
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_, err := tc.DeployWorkload("daemonset.yaml")
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Expect(err).NotTo(HaveOccurred(), "Daemonset manifest not deployed")
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Eventually(func(g Gomega) {
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count, err := tests.GetDaemonsetReady("test-daemonset", tc.KubeconfigFile)
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g.Expect(err).NotTo(HaveOccurred())
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g.Expect(cpNodes).To(HaveLen(count), "Daemonset pod count does not match node count")
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}, "240s", "10s").Should(Succeed())
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})
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It("Verifies dns access", func() {
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_, err := tc.DeployWorkload("dnsutils.yaml")
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Expect(err).NotTo(HaveOccurred(), "dnsutils manifest not deployed")
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cmd := "kubectl get pods dnsutils --kubeconfig=" + tc.KubeconfigFile
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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "420s", "2s").Should(ContainSubstring("dnsutils"), "failed cmd: "+cmd)
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cmd = "kubectl --kubeconfig=" + tc.KubeconfigFile + " exec -i -t dnsutils -- nslookup kubernetes.default"
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Eventually(func() (string, error) {
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return tests.RunCommand(cmd)
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}, "420s", "2s").Should(ContainSubstring("kubernetes.default.svc.cluster.local"), "failed cmd: "+cmd)
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})
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})
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AfterAll(func() {
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failed = failed || CurrentSpecReport().Failed()
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})
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AfterAll(func() {
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if failed {
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AddReportEntry("journald-logs", e2e.TailJournalLogs(1000, allNodes))
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} else {
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Expect(e2e.GetCoverageReport(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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},
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Entry("concurrently", "--no-block"),
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Entry("sequentially", ""),
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)
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