mirror of https://github.com/k3s-io/k3s.git
321 lines
11 KiB
Go
321 lines
11 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/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: generic/ubuntu2310, opensuse/Leap-15.3.x86_64
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var nodeOS = flag.String("nodeOS", "generic/ubuntu2310", "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 (
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kubeConfigFile string
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serverNodeNames []string
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agentNodeNames []string
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)
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func StartK3sCluster(nodes []string, 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, "server") {
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resetCmd = "head -n 3 /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 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", agentYAML)
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startCmd = "systemctl start k3s-agent"
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}
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if _, err := e2e.RunCmdOnNode(resetCmd, node); err != nil {
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return err
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}
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if _, err := e2e.RunCmdOnNode(yamlCmd, node); err != nil {
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return err
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}
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if _, err := e2e.RunCmdOnNode(startCmd, node); 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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func KillK3sCluster(nodes []string) error {
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for _, node := range nodes {
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if _, err := e2e.RunCmdOnNode("k3s-killall.sh", node); err != nil {
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return err
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}
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if strings.Contains(node, "server") {
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if _, err := e2e.RunCmdOnNode("rm -rf /var/lib/rancher/k3s/server/db", node); err != nil {
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return err
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}
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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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serverNodeNames, agentNodeNames, err = e2e.CreateLocalCluster(*nodeOS, 1, 1)
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} else {
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serverNodeNames, agentNodeNames, 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 CRI-Dockerd :", func() {
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It("Starts K3s with no issues", func() {
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dockerYAML := "docker: true"
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err := StartK3sCluster(append(serverNodeNames, agentNodeNames...), dockerYAML, dockerYAML)
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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("Server Nodes:", serverNodeNames)
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fmt.Println("Agent Nodes:", agentNodeNames)
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kubeConfigFile, err = e2e.GenKubeConfigFile(serverNodeNames[0])
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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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fmt.Printf("\nFetching node status\n")
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Eventually(func(g Gomega) {
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nodes, err := e2e.ParseNodes(kubeConfigFile, false)
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g.Expect(err).NotTo(HaveOccurred())
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for _, node := range nodes {
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g.Expect(node.Status).Should(Equal("Ready"))
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}
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}, "360s", "5s").Should(Succeed())
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_, _ = e2e.ParseNodes(kubeConfigFile, true)
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fmt.Printf("\nFetching pods status\n")
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Eventually(func(g Gomega) {
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pods, err := e2e.ParsePods(kubeConfigFile, false)
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g.Expect(err).NotTo(HaveOccurred())
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for _, pod := range pods {
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if strings.Contains(pod.Name, "helm-install") {
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g.Expect(pod.Status).Should(Equal("Completed"), pod.Name)
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} else {
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g.Expect(pod.Status).Should(Equal("Running"), pod.Name)
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}
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}
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}, "360s", "5s").Should(Succeed())
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_, _ = e2e.ParsePods(kubeConfigFile, true)
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})
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It("Kills the cluster", func() {
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err := KillK3sCluster(append(serverNodeNames, agentNodeNames...))
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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(append(serverNodeNames, agentNodeNames...), preferBundledYAML, preferBundledYAML)
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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("Server Nodes:", serverNodeNames)
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fmt.Println("Agent Nodes:", agentNodeNames)
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kubeConfigFile, err = e2e.GenKubeConfigFile(serverNodeNames[0])
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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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fmt.Printf("\nFetching node status\n")
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Eventually(func(g Gomega) {
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nodes, err := e2e.ParseNodes(kubeConfigFile, false)
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g.Expect(err).NotTo(HaveOccurred())
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for _, node := range nodes {
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g.Expect(node.Status).Should(Equal("Ready"))
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}
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}, "360s", "5s").Should(Succeed())
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_, _ = e2e.ParseNodes(kubeConfigFile, true)
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fmt.Printf("\nFetching pods status\n")
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Eventually(func(g Gomega) {
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pods, err := e2e.ParsePods(kubeConfigFile, false)
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g.Expect(err).NotTo(HaveOccurred())
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for _, pod := range pods {
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if strings.Contains(pod.Name, "helm-install") {
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g.Expect(pod.Status).Should(Equal("Completed"), pod.Name)
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} else {
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g.Expect(pod.Status).Should(Equal("Running"), pod.Name)
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}
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}
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}, "360s", "5s").Should(Succeed())
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_, _ = e2e.ParsePods(kubeConfigFile, true)
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})
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It("Kills the cluster", func() {
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err := KillK3sCluster(append(serverNodeNames, agentNodeNames...))
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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(append(serverNodeNames, agentNodeNames...), disableAgentYAML, "")
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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("Server Nodes:", serverNodeNames)
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fmt.Println("Agent Nodes:", agentNodeNames)
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kubeConfigFile, err = e2e.GenKubeConfigFile(serverNodeNames[0])
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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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fmt.Printf("\nFetching node status\n")
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Eventually(func(g Gomega) {
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nodes, err := e2e.ParseNodes(kubeConfigFile, false)
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g.Expect(err).NotTo(HaveOccurred())
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for _, node := range nodes {
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g.Expect(node.Status).Should(Equal("Ready"))
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}
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}, "360s", "5s").Should(Succeed())
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_, _ = e2e.ParseNodes(kubeConfigFile, true)
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fmt.Printf("\nFetching pods status\n")
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Eventually(func(g Gomega) {
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pods, err := e2e.ParsePods(kubeConfigFile, false)
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g.Expect(err).NotTo(HaveOccurred())
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for _, pod := range pods {
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if strings.Contains(pod.Name, "helm-install") {
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g.Expect(pod.Status).Should(Equal("Completed"), pod.Name)
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} else {
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g.Expect(pod.Status).Should(Equal("Running"), pod.Name)
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}
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}
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}, "360s", "5s").Should(Succeed())
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_, _ = e2e.ParsePods(kubeConfigFile, true)
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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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_, err := e2e.RunCommand(cmd)
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Expect(err).NotTo(HaveOccurred())
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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 := e2e.RunCmdOnNode(cmd, serverNodeNames[0])
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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 := KillK3sCluster(append(serverNodeNames, agentNodeNames...))
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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 := e2e.RunCmdOnNode("docker pull ranchertest/mytestcontainer:latest", serverNodeNames[0])
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Expect(err).NotTo(HaveOccurred())
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_, err = e2e.RunCmdOnNode("docker save ranchertest/mytestcontainer:latest -o /tmp/mytestcontainer.tar", serverNodeNames[0])
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Expect(err).NotTo(HaveOccurred())
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_, err = e2e.RunCmdOnNode("mkdir -p /var/lib/rancher/k3s/agent/images/", serverNodeNames[0])
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Expect(err).NotTo(HaveOccurred())
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_, err = e2e.RunCmdOnNode("mv /tmp/mytestcontainer.tar /var/lib/rancher/k3s/agent/images/", serverNodeNames[0])
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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(append(serverNodeNames, agentNodeNames...), "", "")
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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("Server Nodes:", serverNodeNames)
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fmt.Println("Agent Nodes:", agentNodeNames)
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kubeConfigFile, err = e2e.GenKubeConfigFile(serverNodeNames[0])
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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 ranchertest/mytestcontainer"
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return e2e.RunCmdOnNode(cmd, serverNodeNames[0])
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}, "120s", "5s").Should(ContainSubstring("ranchertest/mytestcontainer"))
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})
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It("Kills the cluster", func() {
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err := KillK3sCluster(append(serverNodeNames, agentNodeNames...))
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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(append(serverNodeNames, agentNodeNames...), tokenYAML, tokenYAML)
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Expect(err).To(HaveOccurred())
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Eventually(func(g Gomega) {
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logs, err := e2e.GetJournalLogs(serverNodeNames[0])
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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 := KillK3sCluster(append(serverNodeNames, agentNodeNames...))
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Expect(err).NotTo(HaveOccurred())
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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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Expect(e2e.GetCoverageReport(append(serverNodeNames, agentNodeNames...))).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(kubeConfigFile)).To(Succeed())
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}
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})
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