From 7d2f997b3eefe733f5e5233f2dcccb5cef6449c6 Mon Sep 17 00:00:00 2001 From: Roberto Bonafiglia Date: Mon, 6 Feb 2023 17:50:06 +0100 Subject: [PATCH] Added multiClusterCIDR E2E test Signed-off-by: Roberto Bonafiglia --- .../cluster-cidr-ipv6.yaml | 14 + .../amd64_resource_files/cluster-cidr.yaml | 14 + tests/e2e/multiclustercidr/Vagrantfile | 155 ++++++++++ .../multiclustercidr/multiclustercidr_test.go | 281 ++++++++++++++++++ 4 files changed, 464 insertions(+) create mode 100644 tests/e2e/amd64_resource_files/cluster-cidr-ipv6.yaml create mode 100644 tests/e2e/amd64_resource_files/cluster-cidr.yaml create mode 100644 tests/e2e/multiclustercidr/Vagrantfile create mode 100644 tests/e2e/multiclustercidr/multiclustercidr_test.go diff --git a/tests/e2e/amd64_resource_files/cluster-cidr-ipv6.yaml b/tests/e2e/amd64_resource_files/cluster-cidr-ipv6.yaml new file mode 100644 index 00000000000..b48c41b4c0b --- /dev/null +++ b/tests/e2e/amd64_resource_files/cluster-cidr-ipv6.yaml @@ -0,0 +1,14 @@ +apiVersion: networking.k8s.io/v1alpha1 +kind: ClusterCIDR +metadata: + name: new-cidr +spec: + nodeSelector: + nodeSelectorTerms: + - matchExpressions: + - key: kubernetes.io/hostname + operator: In + values: + - "agent-0" + perNodeHostBits: 64 + ipv6: 2001:cafe:248::/56 diff --git a/tests/e2e/amd64_resource_files/cluster-cidr.yaml b/tests/e2e/amd64_resource_files/cluster-cidr.yaml new file mode 100644 index 00000000000..a5a559e5faa --- /dev/null +++ b/tests/e2e/amd64_resource_files/cluster-cidr.yaml @@ -0,0 +1,14 @@ +apiVersion: networking.k8s.io/v1alpha1 +kind: ClusterCIDR +metadata: + name: new-cidr +spec: + nodeSelector: + nodeSelectorTerms: + - matchExpressions: + - key: kubernetes.io/hostname + operator: In + values: + - "agent-0" + perNodeHostBits: 8 + ipv4: 10.248.0.0/16 diff --git a/tests/e2e/multiclustercidr/Vagrantfile b/tests/e2e/multiclustercidr/Vagrantfile new file mode 100644 index 00000000000..1655c38ec5e --- /dev/null +++ b/tests/e2e/multiclustercidr/Vagrantfile @@ -0,0 +1,155 @@ +ENV['VAGRANT_NO_PARALLEL'] = 'no' +NODE_ROLES = (ENV['E2E_NODE_ROLES'] || + ["server-0", "server-1", "server-2", "agent-0"]) +NODE_BOXES = (ENV['E2E_NODE_BOXES'] || + ['generic/ubuntu2004', 'generic/ubuntu2004', 'generic/ubuntu2004', 'generic/ubuntu2004']) +GITHUB_BRANCH = (ENV['E2E_GITHUB_BRANCH'] || "master") +RELEASE_VERSION = (ENV['E2E_RELEASE_VERSION'] || "") +NODE_CPUS = (ENV['E2E_NODE_CPUS'] || 2).to_i +NODE_MEMORY = (ENV['E2E_NODE_MEMORY'] || 2048).to_i +IP_FAMILY = (ENV['E2E_IP_FAMILY'] || "ipv4") +NETWORK4_PREFIX = "10.10.10" +NETWORK6_PREFIX = "fd11:decf:c0ff:ee" +install_type = "" + +def provision(vm, roles, role_num, node_num) + vm.box = NODE_BOXES[node_num] + vm.hostname = "#{roles[0]}-#{role_num}" + node_ip4 = "#{NETWORK4_PREFIX}.#{100+node_num}" + node_ip6 = "#{NETWORK6_PREFIX}::#{10+node_num}" + node_ip6_gw = "#{NETWORK6_PREFIX}::1" + # Only works with libvirt, which allows IPv4 + IPv6 on a single network/interface + vm.network "private_network", + :ip => node_ip4, + :netmask => "255.255.255.0", + :libvirt__dhcp_enabled => false, + :libvirt__forward_mode => "none", + :libvirt__guest_ipv6 => "yes", + :libvirt__ipv6_address => "#{NETWORK6_PREFIX}::1", + :libvirt__ipv6_prefix => "64" + + scripts_location = Dir.exists?("./scripts") ? "./scripts" : "../scripts" + vagrant_defaults = File.exists?("./vagrantdefaults.rb") ? "./vagrantdefaults.rb" : "../vagrantdefaults.rb" + load vagrant_defaults + + defaultOSConfigure(vm) + + vm.provision "IPv6 Setup", type: "shell", path: scripts_location +"/ipv6.sh", args: [node_ip4, node_ip6, node_ip6_gw, vm.box.to_s] + install_type = getInstallType(vm, RELEASE_VERSION, GITHUB_BRANCH) + + vm.provision "Ping Check", type: "shell", inline: "ping -c 2 k3s.io" + + if roles.include?("server") && role_num == 0 + vm.provision :k3s, run: 'once' do |k3s| + k3s.config_mode = '0644' # side-step https://github.com/k3s-io/k3s/issues/4321 + k3s.args = "server " + if IP_FAMILY.include?("ipv4") + k3s.config = <<~YAML + node-external-ip: #{node_ip4} + node-ip: #{node_ip4} + cluster-init: true + token: vagrant + cluster-cidr: 10.42.0.0/16 + service-cidr: 10.43.0.0/16 + bind-address: #{NETWORK4_PREFIX}.100 + multi-cluster-cidr: true + flannel-iface: eth1 + YAML + else + k3s.config = <<~YAML + node-external-ip: #{node_ip6} + node-ip: #{node_ip6} + cluster-init: true + token: vagrant + cluster-cidr: 2001:cafe:42::/56 + service-cidr: 2001:cafe:43::/112 + bind-address: #{NETWORK6_PREFIX}::10 + multi-cluster-cidr: true + flannel-ipv6-masq: true + flannel-iface: eth1 + YAML + end + k3s.env = ["K3S_KUBECONFIG_MODE=0644", install_type] + end + elsif roles.include?("server") && role_num != 0 + vm.provision :k3s, run: 'once' do |k3s| + k3s.config_mode = '0644' # side-step https://github.com/k3s-io/k3s/issues/4321 + k3s.args = "server " + if IP_FAMILY.include?("ipv4") + k3s.config = <<~YAML + node-external-ip: #{node_ip4} + node-ip: #{node_ip4} + server: https://#{NETWORK4_PREFIX}.100:6443 + token: vagrant + cluster-cidr: 10.42.0.0/16 + service-cidr: 10.43.0.0/16 + multi-cluster-cidr: true + flannel-iface: eth1 + YAML + else + k3s.config = <<~YAML + node-external-ip: #{node_ip6} + node-ip: #{node_ip6} + server: https://[#{NETWORK6_PREFIX}::10]:6443 + token: vagrant + cluster-cidr: 2001:cafe:42::/56 + service-cidr: 2001:cafe:43::/112 + multi-cluster-cidr: true + flannel-ipv6-masq: true + flannel-iface: eth1 + YAML + end + k3s.env = ["K3S_KUBECONFIG_MODE=0644", install_type] + end + end + if roles.include?("agent") + vm.provision :k3s, run: 'once' do |k3s| + k3s.config_mode = '0644' # side-step https://github.com/k3s-io/k3s/issues/4321 + k3s.args = "agent " + if IP_FAMILY.include?("ipv4") + k3s.config = <<~YAML + node-external-ip: #{node_ip4} + node-ip: #{node_ip4} + server: https://#{NETWORK4_PREFIX}.100:6443 + token: vagrant + flannel-iface: eth1 + YAML + else + k3s.config = <<~YAML + node-external-ip: #{node_ip6} + node-ip: #{node_ip6} + server: https://[#{NETWORK6_PREFIX}::10]:6443 + token: vagrant + flannel-iface: eth1 + YAML + end + k3s.env = ["K3S_KUBECONFIG_MODE=0644", "INSTALL_K3S_SKIP_START=true", install_type] + end + end +end + +Vagrant.configure("2") do |config| + config.vagrant.plugins = ["vagrant-k3s", "vagrant-reload", "vagrant-libvirt"] + config.vm.provider "libvirt" do |v| + v.cpus = NODE_CPUS + v.memory = NODE_MEMORY + end + + if NODE_ROLES.kind_of?(String) + NODE_ROLES = NODE_ROLES.split(" ", -1) + end + if NODE_BOXES.kind_of?(String) + NODE_BOXES = NODE_BOXES.split(" ", -1) + end + + # Must iterate on the index, vagrant does not understand iterating + # over the node roles themselves + NODE_ROLES.length.times do |i| + name = NODE_ROLES[i] + config.vm.define name do |node| + roles = name.split("-", -1) + role_num = roles.pop.to_i + provision(node.vm, roles, role_num, i) + end + end +end diff --git a/tests/e2e/multiclustercidr/multiclustercidr_test.go b/tests/e2e/multiclustercidr/multiclustercidr_test.go new file mode 100644 index 00000000000..09b95fabc70 --- /dev/null +++ b/tests/e2e/multiclustercidr/multiclustercidr_test.go @@ -0,0 +1,281 @@ +package multiclustercidr + +import ( + "flag" + "fmt" + "os" + "strings" + "testing" + + "github.com/k3s-io/k3s/tests/e2e" + . "github.com/onsi/ginkgo/v2" + . "github.com/onsi/gomega" +) + +// Valid nodeOS: generic/ubuntu2004, opensuse/Leap-15.3.x86_64 +var nodeOS = flag.String("nodeOS", "generic/ubuntu2004", "VM operating system") +var serverCount = flag.Int("serverCount", 3, "number of server nodes") +var agentCount = flag.Int("agentCount", 1, "number of agent nodes") +var hardened = flag.Bool("hardened", false, "true or false") +var ci = flag.Bool("ci", false, "running on CI") + +func Test_E2EMultiClusterCIDR(t *testing.T) { + flag.Parse() + RegisterFailHandler(Fail) + suiteConfig, reporterConfig := GinkgoConfiguration() + RunSpecs(t, "MultiClusterCIDR Test Suite", suiteConfig, reporterConfig) +} + +var ( + kubeConfigFile string + serverNodeNames []string + agentNodeNames []string +) + +var _ = ReportAfterEach(e2e.GenReport) + +var _ = Describe("Verify MultiClusterCIDR Configuration", Ordered, func() { + + It("Starts up IPv4 setup with no issues", func() { + var err error + os.Setenv("E2E_IP_FAMILY", "ipv4") + defer os.Unsetenv("E2E_IP_FAMILY") + serverNodeNames, agentNodeNames, err = e2e.CreateCluster(*nodeOS, *serverCount, *agentCount) + Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err)) + fmt.Println("CLUSTER CONFIG") + fmt.Println("OS:", *nodeOS) + fmt.Println("Server Nodes:", serverNodeNames) + fmt.Println("Agent Nodes:", agentNodeNames) + kubeConfigFile, err = e2e.GenKubeConfigFile(serverNodeNames[0]) + Expect(err).NotTo(HaveOccurred()) + }) + + It("Checks Node Status", func() { + Eventually(func(g Gomega) { + nodes, err := e2e.ParseNodes(kubeConfigFile, false) + g.Expect(err).NotTo(HaveOccurred()) + for _, node := range nodes { + g.Expect(node.Status).Should(Equal("Ready")) + } + }, "420s", "5s").Should(Succeed()) + _, err := e2e.ParseNodes(kubeConfigFile, true) + Expect(err).NotTo(HaveOccurred()) + }) + + It("Checks Pod Status", func() { + Eventually(func(g Gomega) { + pods, err := e2e.ParsePods(kubeConfigFile, false) + g.Expect(err).NotTo(HaveOccurred()) + for _, pod := range pods { + if strings.Contains(pod.Name, "helm-install") { + g.Expect(pod.Status).Should(Equal("Completed"), pod.Name) + } else { + g.Expect(pod.Status).Should(Equal("Running"), pod.Name) + } + } + }, "420s", "5s").Should(Succeed()) + _, err := e2e.ParsePods(kubeConfigFile, true) + Expect(err).NotTo(HaveOccurred()) + }) + + It("Verifies that each node has IPv4", func() { + nodeIPs, err := e2e.GetNodeIPs(kubeConfigFile) + Expect(err).NotTo(HaveOccurred()) + for _, node := range nodeIPs { + Expect(node.IPv4).Should(ContainSubstring("10.10.10")) + } + }) + + It("Verifies that each pod has IPv4", func() { + podIPs, err := e2e.GetPodIPs(kubeConfigFile) + Expect(err).NotTo(HaveOccurred()) + for _, pod := range podIPs { + Expect(pod.IPv4).Should(Or(ContainSubstring("10.10.10"), ContainSubstring("10.42.")), pod.Name) + } + }) + + It("Add new CIDR", func() { + _, err := e2e.DeployWorkload("cluster-cidr.yaml", kubeConfigFile, *hardened) + Expect(err).NotTo(HaveOccurred()) + Eventually(func() (string, error) { + cmd := "kubectl get clustercidr new-cidr --kubeconfig=" + kubeConfigFile + return e2e.RunCommand(cmd) + }, "120s", "5s").Should(ContainSubstring("10.248.0.0")) + + }) + + It("Restart agent-0", func() { + agents := []string{"agent-0"} + err := e2e.RestartClusterAgent(agents) + Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err)) + }) + + It("Checks Node Status", func() { + Eventually(func(g Gomega) { + nodes, err := e2e.ParseNodes(kubeConfigFile, false) + g.Expect(err).NotTo(HaveOccurred()) + for _, node := range nodes { + g.Expect(node.Status).Should(Equal("Ready")) + } + }, "420s", "5s").Should(Succeed()) + _, err := e2e.ParseNodes(kubeConfigFile, true) + Expect(err).NotTo(HaveOccurred()) + }) + + It("Checks Pod Status", func() { + Eventually(func(g Gomega) { + pods, err := e2e.ParsePods(kubeConfigFile, false) + g.Expect(err).NotTo(HaveOccurred()) + for _, pod := range pods { + if strings.Contains(pod.Name, "helm-install") { + g.Expect(pod.Status).Should(Equal("Completed"), pod.Name) + } else { + g.Expect(pod.Status).Should(Equal("Running"), pod.Name) + } + } + }, "420s", "5s").Should(Succeed()) + _, err := e2e.ParsePods(kubeConfigFile, true) + Expect(err).NotTo(HaveOccurred()) + }) + + It("Verifies that each pod of agent-0 has IPv4 from the new CIDR", func() { + pods, err := e2e.ParsePods(kubeConfigFile, false) + Expect(err).NotTo(HaveOccurred()) + for _, pod := range pods { + if pod.Node == "agent-0" { + Expect(pod.NodeIP).Should(Or(ContainSubstring("10.10.10"), ContainSubstring("10.248.")), pod.Name) + } + } + }) + + It("Destroy Cluster", func() { + Expect(e2e.DestroyCluster()).To(Succeed()) + Expect(os.Remove(kubeConfigFile)).To(Succeed()) + }) + + It("Starts up IPv6 setup with no issues", func() { + var err error + os.Setenv("E2E_IP_FAMILY", "ipv6") + defer os.Unsetenv("E2E_IP_FAMILY") + serverNodeNames, agentNodeNames, err = e2e.CreateCluster(*nodeOS, *serverCount, *agentCount) + Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err)) + fmt.Println("CLUSTER CONFIG") + fmt.Println("OS:", *nodeOS) + fmt.Println("Server Nodes:", serverNodeNames) + fmt.Println("Agent Nodes:", agentNodeNames) + kubeConfigFile, err = e2e.GenKubeConfigFile(serverNodeNames[0]) + Expect(err).NotTo(HaveOccurred()) + }) + + It("Checks Node Status", func() { + Eventually(func(g Gomega) { + nodes, err := e2e.ParseNodes(kubeConfigFile, false) + g.Expect(err).NotTo(HaveOccurred()) + for _, node := range nodes { + g.Expect(node.Status).Should(Equal("Ready")) + } + }, "420s", "5s").Should(Succeed()) + _, err := e2e.ParseNodes(kubeConfigFile, true) + Expect(err).NotTo(HaveOccurred()) + }) + + It("Checks Pod Status", func() { + Eventually(func(g Gomega) { + pods, err := e2e.ParsePods(kubeConfigFile, false) + g.Expect(err).NotTo(HaveOccurred()) + for _, pod := range pods { + if strings.Contains(pod.Name, "helm-install") { + g.Expect(pod.Status).Should(Equal("Completed"), pod.Name) + } else { + g.Expect(pod.Status).Should(Equal("Running"), pod.Name) + } + } + }, "420s", "5s").Should(Succeed()) + _, err := e2e.ParsePods(kubeConfigFile, true) + Expect(err).NotTo(HaveOccurred()) + }) + + It("Verifies that each node has IPv6", func() { + nodeIPs, err := e2e.GetNodeIPs(kubeConfigFile) + Expect(err).NotTo(HaveOccurred()) + for _, node := range nodeIPs { + Expect(node.IPv6).Should(ContainSubstring("fd11:decf:c0ff")) + } + }) + + It("Verifies that each pod has IPv6", func() { + podIPs, err := e2e.GetPodIPs(kubeConfigFile) + Expect(err).NotTo(HaveOccurred()) + for _, pod := range podIPs { + Expect(pod.IPv6).Should(Or(ContainSubstring("fd11:decf:c0ff"), ContainSubstring("2001:cafe:42")), pod.Name) + } + }) + + It("Add new CIDR", func() { + _, err := e2e.DeployWorkload("cluster-cidr-ipv6.yaml", kubeConfigFile, *hardened) + Expect(err).NotTo(HaveOccurred()) + Eventually(func() (string, error) { + cmd := "kubectl get clustercidr new-cidr --kubeconfig=" + kubeConfigFile + return e2e.RunCommand(cmd) + }, "120s", "5s").Should(ContainSubstring("2001:cafe:248")) + + }) + + It("Delete and restart agent-0", func() { + agents := []string{"agent-0"} + err := e2e.RestartClusterAgent(agents) + Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err)) + }) + + It("Checks Node Status", func() { + Eventually(func(g Gomega) { + nodes, err := e2e.ParseNodes(kubeConfigFile, false) + g.Expect(err).NotTo(HaveOccurred()) + for _, node := range nodes { + g.Expect(node.Status).Should(Equal("Ready")) + } + }, "420s", "5s").Should(Succeed()) + _, err := e2e.ParseNodes(kubeConfigFile, true) + Expect(err).NotTo(HaveOccurred()) + }) + + It("Checks Pod Status", func() { + Eventually(func(g Gomega) { + pods, err := e2e.ParsePods(kubeConfigFile, false) + g.Expect(err).NotTo(HaveOccurred()) + for _, pod := range pods { + if strings.Contains(pod.Name, "helm-install") { + g.Expect(pod.Status).Should(Equal("Completed"), pod.Name) + } else { + g.Expect(pod.Status).Should(Equal("Running"), pod.Name) + } + } + }, "420s", "5s").Should(Succeed()) + _, err := e2e.ParsePods(kubeConfigFile, true) + Expect(err).NotTo(HaveOccurred()) + }) + + It("Verifies that each pod of agent-0 has IPv6 from the new CIDR", func() { + pods, err := e2e.ParsePods(kubeConfigFile, false) + Expect(err).NotTo(HaveOccurred()) + for _, pod := range pods { + if pod.Node == "agent-0" { + Expect(pod.NodeIP).Should(Or(ContainSubstring("fd11:decf:c0ff"), ContainSubstring("2001:cafe:248")), pod.Name) + } + } + }) +}) + +var failed bool +var _ = AfterEach(func() { + failed = failed || CurrentSpecReport().Failed() +}) + +var _ = AfterSuite(func() { + if failed && !*ci { + fmt.Println("FAILED!") + } else { + Expect(e2e.DestroyCluster()).To(Succeed()) + Expect(os.Remove(kubeConfigFile)).To(Succeed()) + } +})