mirror of https://github.com/k3s-io/k3s.git
473 lines
17 KiB
Go
473 lines
17 KiB
Go
package startup
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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 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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// Environment Variables Info:
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// E2E_RELEASE_VERSION=v1.23.1+k3s2 or nil for latest commit from master
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// This test suite is used to verify that K3s can start up with dynamic configurations that require
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// both server and agent nodes. It is unique in passing dynamic arguments to vagrant, unlike the
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// rest of the E2E tests, which use static Vagrantfiles and cluster configurations.
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// If you have a server only flag, the startup integration test is a better place to test it.
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func Test_E2EStartupValidation(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, "Startup Test Suite", suiteConfig, reporterConfig)
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}
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var tc *e2e.TestConfig
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func StartK3sCluster(nodes []e2e.VagrantNode, serverYAML string, agentYAML string) error {
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for _, node := range nodes {
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var yamlCmd string
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var resetCmd string
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var startCmd string
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if strings.Contains(node.String(), "server") {
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resetCmd = "head -n 4 /etc/rancher/k3s/config.yaml > /tmp/config.yaml && sudo mv /tmp/config.yaml /etc/rancher/k3s/config.yaml"
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yamlCmd = fmt.Sprintf("echo '%s' >> /etc/rancher/k3s/config.yaml", serverYAML)
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startCmd = "systemctl start k3s"
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} else {
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resetCmd = "head -n 5 /etc/rancher/k3s/config.yaml > /tmp/config.yaml && sudo mv /tmp/config.yaml /etc/rancher/k3s/config.yaml"
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yamlCmd = fmt.Sprintf("echo '%s' >> /etc/rancher/k3s/config.yaml", agentYAML)
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startCmd = "systemctl start k3s-agent"
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}
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if _, err := node.RunCmdOnNode(resetCmd); err != nil {
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return err
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}
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if _, err := node.RunCmdOnNode(yamlCmd); err != nil {
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return err
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}
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if _, err := node.RunCmdOnNode(startCmd); err != nil {
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return &e2e.NodeError{Node: node, Cmd: startCmd, Err: err}
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}
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}
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return nil
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}
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var _ = ReportAfterEach(e2e.GenReport)
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var _ = BeforeSuite(func() {
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var err error
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if *local {
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tc, err = e2e.CreateLocalCluster(*nodeOS, 1, 1)
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} else {
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tc, err = e2e.CreateCluster(*nodeOS, 1, 1)
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}
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Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
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})
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var _ = Describe("Various Startup Configurations", Ordered, func() {
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Context("Verify dedicated supervisor port", func() {
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It("Starts K3s with no issues", func() {
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for _, node := range tc.Agents {
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cmd := "mkdir -p /etc/rancher/k3s/config.yaml.d; grep -F server: /etc/rancher/k3s/config.yaml | sed s/6443/9345/ > /tmp/99-server.yaml; sudo mv /tmp/99-server.yaml /etc/rancher/k3s/config.yaml.d/"
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res, err := node.RunCmdOnNode(cmd)
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By("checking command results: " + res)
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Expect(err).NotTo(HaveOccurred())
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}
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supervisorPortYAML := "supervisor-port: 9345\napiserver-port: 6443\napiserver-bind-address: 0.0.0.0\ndisable: traefik\nnode-taint: node-role.kubernetes.io/control-plane:NoExecute"
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err := StartK3sCluster(tc.AllNodes(), supervisorPortYAML, "")
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Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
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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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tc.KubeconfigFile, err = e2e.GenKubeconfigFile(tc.Servers[0].String())
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Expect(err).NotTo(HaveOccurred())
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})
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It("Checks node and pod status", func() {
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By("Fetching node status")
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Eventually(func() error {
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return tests.NodesReady(tc.KubeconfigFile, e2e.VagrantSlice(tc.AllNodes()))
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}, "360s", "5s").Should(Succeed())
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Eventually(func() error {
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return tests.AllPodsUp(tc.KubeconfigFile)
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}, "360s", "5s").Should(Succeed())
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Eventually(func() error {
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return tests.CheckDeployments([]string{"coredns", "local-path-provisioner", "metrics-server"}, tc.KubeconfigFile)
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}, "300s", "10s").Should(Succeed())
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e2e.DumpPods(tc.KubeconfigFile)
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})
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It("Returns pod metrics", func() {
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cmd := "kubectl top pod -A"
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Eventually(func() error {
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_, err := e2e.RunCommand(cmd)
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return err
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}, "600s", "5s").Should(Succeed())
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})
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It("Returns node metrics", func() {
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cmd := "kubectl top node"
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res, err := e2e.RunCommand(cmd)
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Expect(err).NotTo(HaveOccurred(), "failed to get node metrics: %s", res)
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})
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It("Runs an interactive command a pod", func() {
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cmd := "kubectl run busybox --rm -it --restart=Never --image=rancher/mirrored-library-busybox:1.36.1 -- uname -a"
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_, err := tc.Servers[0].RunCmdOnNode(cmd)
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Expect(err).NotTo(HaveOccurred())
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})
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It("Collects logs from a pod", func() {
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cmd := "kubectl logs -n kube-system -l k8s-app=metrics-server -c metrics-server"
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_, err := e2e.RunCommand(cmd)
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Expect(err).NotTo(HaveOccurred())
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})
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It("Kills the cluster", func() {
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err := e2e.KillK3sCluster(tc.AllNodes())
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Expect(err).NotTo(HaveOccurred())
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})
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})
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Context("Verify SQLite to Etcd migration", func() {
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It("Starts up with SQLite and checks status", func() {
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err := StartK3sCluster(tc.AllNodes(), "", "")
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Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
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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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tc.KubeconfigFile, err = e2e.GenKubeconfigFile(tc.Servers[0].String())
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Expect(err).NotTo(HaveOccurred())
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By("Fetching node status")
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Eventually(func() error {
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return tests.NodesReady(tc.KubeconfigFile, e2e.VagrantSlice(tc.AllNodes()))
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}, "600s", "5s").Should(Succeed())
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Eventually(func() error {
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return tests.AllPodsUp(tc.KubeconfigFile)
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}, "600s", "5s").Should(Succeed())
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Eventually(func() error {
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return tests.CheckDefaultDeployments(tc.KubeconfigFile)
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}, "480s", "10s").Should(Succeed())
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e2e.DumpPods(tc.KubeconfigFile)
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})
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It("Creates test resources before migration", func() {
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createCmd := "kubectl create configmap migration-test --from-literal=test=before-migration"
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_, err := tc.Servers[0].RunCmdOnNode(createCmd)
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Expect(err).NotTo(HaveOccurred())
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getCmd := "kubectl get configmap migration-test -o jsonpath='{.data.test}'"
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result, err := tc.Servers[0].RunCmdOnNode(getCmd)
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Expect(err).NotTo(HaveOccurred())
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Expect(result).To(ContainSubstring("before-migration"))
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})
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It("Migrates from SQLite to etcd", func() {
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configCmd := "echo 'cluster-init: true' >> /etc/rancher/k3s/config.yaml"
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_, err := tc.Servers[0].RunCmdOnNode(configCmd)
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Expect(err).NotTo(HaveOccurred())
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Expect(e2e.RestartCluster(tc.Servers)).To(Succeed())
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Expect(e2e.RestartCluster(tc.Agents)).To(Succeed())
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Eventually(func() (string, error) {
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cmd := "kubectl get nodes -l node-role.kubernetes.io/etcd=true"
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return tc.Servers[0].RunCmdOnNode(cmd)
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}, "120s", "5s").Should(ContainSubstring(tc.Servers[0].String()))
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})
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It("Checks node and pod status after migration", func() {
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By("Fetching node status after migration")
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Eventually(func() error {
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return tests.NodesReady(tc.KubeconfigFile, e2e.VagrantSlice(tc.AllNodes()))
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}, "600s", "5s").Should(Succeed())
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Eventually(func() error {
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return tests.AllPodsUp(tc.KubeconfigFile)
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}, "600s", "5s").Should(Succeed())
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Eventually(func() error {
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return tests.CheckDefaultDeployments(tc.KubeconfigFile)
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}, "480s", "10s").Should(Succeed())
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e2e.DumpPods(tc.KubeconfigFile)
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})
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It("Verifies data persistence after migration", func() {
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getCmd := "kubectl get configmap migration-test -o jsonpath='{.data.test}'"
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result, err := tc.Servers[0].RunCmdOnNode(getCmd)
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Expect(err).NotTo(HaveOccurred())
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Expect(result).To(ContainSubstring("before-migration"))
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})
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It("Kills the cluster", func() {
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err := e2e.KillK3sCluster(tc.AllNodes())
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Expect(err).NotTo(HaveOccurred())
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})
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})
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Context("Verify kubelet config file", func() {
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It("Starts K3s with no issues", func() {
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for _, node := range tc.AllNodes() {
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cmd := "mkdir -p --mode=0777 /tmp/kubelet.conf.d; echo 'apiVersion: kubelet.config.k8s.io/v1beta1\nkind: KubeletConfiguration\nshutdownGracePeriod: 19s\nshutdownGracePeriodCriticalPods: 13s' > /tmp/kubelet.conf.d/99-shutdownGracePeriod.conf"
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res, err := node.RunCmdOnNode(cmd)
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By("checking command results: " + res)
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Expect(err).NotTo(HaveOccurred())
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}
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kubeletConfigDirYAML := "kubelet-arg: config-dir=/tmp/kubelet.conf.d"
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err := StartK3sCluster(tc.AllNodes(), kubeletConfigDirYAML, kubeletConfigDirYAML)
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Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
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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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tc.KubeconfigFile, err = e2e.GenKubeconfigFile(tc.Servers[0].String())
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Expect(err).NotTo(HaveOccurred())
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})
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It("Checks node and pod status", func() {
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By("Fetching node status")
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Eventually(func() error {
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return tests.NodesReady(tc.KubeconfigFile, e2e.VagrantSlice(tc.AllNodes()))
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}, "360s", "5s").Should(Succeed())
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Eventually(func() error {
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return tests.AllPodsUp(tc.KubeconfigFile)
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}, "360s", "5s").Should(Succeed())
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Eventually(func() error {
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return tests.CheckDefaultDeployments(tc.KubeconfigFile)
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}, "300s", "10s").Should(Succeed())
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e2e.DumpPods(tc.KubeconfigFile)
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})
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It("Returns kubelet configuration", func() {
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for _, node := range tc.AllNodes() {
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cmd := "kubectl get --raw /api/v1/nodes/" + node.String() + "/proxy/configz"
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Expect(e2e.RunCommand(cmd)).To(ContainSubstring(`"shutdownGracePeriod":"19s","shutdownGracePeriodCriticalPods":"13s"`))
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}
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})
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It("Kills the cluster", func() {
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err := e2e.KillK3sCluster(tc.AllNodes())
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Expect(err).NotTo(HaveOccurred())
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})
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})
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Context("Verify prefer-bundled-bin flag", func() {
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It("Starts K3s with no issues", func() {
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preferBundledYAML := "prefer-bundled-bin: true"
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err := StartK3sCluster(tc.AllNodes(), preferBundledYAML, preferBundledYAML)
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Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
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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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tc.KubeconfigFile, err = e2e.GenKubeconfigFile(tc.Servers[0].String())
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Expect(err).NotTo(HaveOccurred())
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})
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It("Checks node and pod status", func() {
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By("Fetching node status")
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Eventually(func() error {
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return tests.NodesReady(tc.KubeconfigFile, e2e.VagrantSlice(tc.AllNodes()))
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}, "360s", "5s").Should(Succeed())
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Eventually(func() error {
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return tests.AllPodsUp(tc.KubeconfigFile)
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}, "360s", "5s").Should(Succeed())
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Eventually(func() error {
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return tests.CheckDefaultDeployments(tc.KubeconfigFile)
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}, "300s", "10s").Should(Succeed())
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e2e.DumpPods(tc.KubeconfigFile)
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})
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It("Kills the cluster", func() {
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err := e2e.KillK3sCluster(tc.AllNodes())
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Expect(err).NotTo(HaveOccurred())
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})
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})
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Context("Verify disable-agent and egress-selector-mode flags", func() {
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It("Starts K3s with no issues", func() {
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disableAgentYAML := "disable-agent: true\negress-selector-mode: cluster"
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err := StartK3sCluster(tc.AllNodes(), disableAgentYAML, "")
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Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
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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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tc.KubeconfigFile, err = e2e.GenKubeconfigFile(tc.Servers[0].String())
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Expect(err).NotTo(HaveOccurred())
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})
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It("Checks node and pod status", func() {
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By("Fetching node status")
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Eventually(func() error {
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return tests.NodesReady(tc.KubeconfigFile, e2e.VagrantSlice(tc.Agents))
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}, "360s", "5s").Should(Succeed())
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Eventually(func() error {
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return tests.AllPodsUp(tc.KubeconfigFile)
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}, "360s", "5s").Should(Succeed())
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Eventually(func() error {
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return tests.CheckDefaultDeployments(tc.KubeconfigFile)
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}, "300s", "10s").Should(Succeed())
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e2e.DumpPods(tc.KubeconfigFile)
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})
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It("Returns pod metrics", func() {
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cmd := "kubectl top pod -A"
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var res, logs string
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var err error
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Eventually(func() error {
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res, err = e2e.RunCommand(cmd)
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// Common error: metrics not available yet, pull more logs
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if err != nil && strings.Contains(res, "metrics not available yet") {
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logs, _ = e2e.RunCommand("kubectl logs -n kube-system -l k8s-app=metrics-server")
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}
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return err
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}, "300s", "10s").Should(Succeed(), "failed to get pod metrics: %s: %s", res, logs)
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})
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It("Returns node metrics", func() {
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var res, logs string
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var err error
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cmd := "kubectl top node"
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Eventually(func() error {
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res, err = e2e.RunCommand(cmd)
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// Common error: metrics not available yet, pull more logs
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if err != nil && strings.Contains(res, "metrics not available yet") {
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logs, _ = e2e.RunCommand("kubectl logs -n kube-system -l k8s-app=metrics-server")
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}
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return err
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}, "30s", "5s").Should(Succeed(), "failed to get node metrics: %s: %s", res, logs)
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})
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It("Runs an interactive command a pod", func() {
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cmd := "kubectl run busybox --rm -it --restart=Never --image=rancher/mirrored-library-busybox:1.36.1 -- uname -a"
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_, err := tc.Servers[0].RunCmdOnNode(cmd)
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Expect(err).NotTo(HaveOccurred())
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})
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It("Collects logs from a pod", func() {
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cmd := "kubectl logs -n kube-system -l app.kubernetes.io/name=traefik -c traefik"
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_, err := e2e.RunCommand(cmd)
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Expect(err).NotTo(HaveOccurred())
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})
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It("Kills the cluster", func() {
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err := e2e.KillK3sCluster(tc.AllNodes())
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Expect(err).NotTo(HaveOccurred())
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})
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})
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Context("Verify server picks up preloaded images on start", func() {
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It("Downloads and preloads images", func() {
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_, err := tc.Servers[0].RunCmdOnNode("docker pull rancher/shell:v0.1.28")
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Expect(err).NotTo(HaveOccurred())
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_, err = tc.Servers[0].RunCmdOnNode("docker save rancher/shell:v0.1.28 -o /tmp/mytestcontainer.tar")
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Expect(err).NotTo(HaveOccurred())
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_, err = tc.Servers[0].RunCmdOnNode("mkdir -p /var/lib/rancher/k3s/agent/images/")
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Expect(err).NotTo(HaveOccurred())
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_, err = tc.Servers[0].RunCmdOnNode("mv /tmp/mytestcontainer.tar /var/lib/rancher/k3s/agent/images/")
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Expect(err).NotTo(HaveOccurred())
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})
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It("Starts K3s with no issues", func() {
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err := StartK3sCluster(tc.AllNodes(), "", "")
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Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
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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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tc.KubeconfigFile, err = e2e.GenKubeconfigFile(tc.Servers[0].String())
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Expect(err).NotTo(HaveOccurred())
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})
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It("has loaded the test container image", func() {
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Eventually(func() (string, error) {
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cmd := "k3s crictl images | grep rancher/shell"
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return tc.Servers[0].RunCmdOnNode(cmd)
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}, "120s", "5s").Should(ContainSubstring("rancher/shell"))
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})
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It("Kills the cluster", func() {
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err := e2e.KillK3sCluster(tc.AllNodes())
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Expect(err).NotTo(HaveOccurred())
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})
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})
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Context("Verify server fails to start with bootstrap token", func() {
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It("Fails to start with a meaningful error", func() {
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tokenYAML := "token: aaaaaa.bbbbbbbbbbbbbbbb"
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err := StartK3sCluster(tc.AllNodes(), tokenYAML, tokenYAML)
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Expect(err).To(HaveOccurred())
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Eventually(func(g Gomega) {
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logs, err := tc.Servers[0].GetJournalLogs()
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g.Expect(err).NotTo(HaveOccurred())
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g.Expect(logs).To(ContainSubstring("failed to normalize server token"))
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}, "120s", "5s").Should(Succeed())
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})
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It("Kills the cluster", func() {
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err := e2e.KillK3sCluster(tc.AllNodes())
|
|
Expect(err).NotTo(HaveOccurred())
|
|
})
|
|
})
|
|
Context("Verify CRI-Dockerd", func() {
|
|
It("Starts K3s with no issues", func() {
|
|
dockerYAML := "docker: true"
|
|
err := StartK3sCluster(tc.AllNodes(), dockerYAML, dockerYAML)
|
|
Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
|
|
|
|
By("CLUSTER CONFIG")
|
|
By("OS:" + *nodeOS)
|
|
By(tc.Status())
|
|
tc.KubeconfigFile, err = e2e.GenKubeconfigFile(tc.Servers[0].String())
|
|
Expect(err).NotTo(HaveOccurred())
|
|
})
|
|
|
|
It("Checks node and pod status", func() {
|
|
By("Fetching node status")
|
|
Eventually(func() error {
|
|
return tests.NodesReady(tc.KubeconfigFile, e2e.VagrantSlice(tc.AllNodes()))
|
|
}, "360s", "5s").Should(Succeed())
|
|
Eventually(func() error {
|
|
return tests.AllPodsUp(tc.KubeconfigFile)
|
|
}, "360s", "5s").Should(Succeed())
|
|
Eventually(func() error {
|
|
return tests.CheckDefaultDeployments(tc.KubeconfigFile)
|
|
}, "300s", "10s").Should(Succeed())
|
|
e2e.DumpPods(tc.KubeconfigFile)
|
|
})
|
|
It("Kills the cluster", func() {
|
|
err := e2e.KillK3sCluster(tc.AllNodes())
|
|
Expect(err).NotTo(HaveOccurred())
|
|
})
|
|
})
|
|
})
|
|
|
|
var failed bool
|
|
var _ = AfterEach(func() {
|
|
failed = failed || CurrentSpecReport().Failed()
|
|
})
|
|
|
|
var _ = AfterSuite(func() {
|
|
if failed {
|
|
AddReportEntry("config", e2e.GetConfig(tc.AllNodes()))
|
|
AddReportEntry("pods", e2e.DescribePods(tc.KubeconfigFile))
|
|
Expect(e2e.SaveJournalLogs(tc.AllNodes())).To(Succeed())
|
|
Expect(e2e.SaveDocker(tc.AllNodes())).To(Succeed())
|
|
Expect(e2e.TailPodLogs(50, tc.AllNodes())).To(Succeed())
|
|
Expect(e2e.SaveNetwork(tc.AllNodes())).To(Succeed())
|
|
Expect(e2e.SaveKernel(tc.AllNodes())).To(Succeed())
|
|
} else {
|
|
Expect(e2e.GetCoverageReport(tc.AllNodes())).To(Succeed())
|
|
}
|
|
if !failed || *ci {
|
|
Expect(e2e.DestroyCluster()).To(Succeed())
|
|
Expect(os.Remove(tc.KubeconfigFile)).To(Succeed())
|
|
}
|
|
})
|