k3s/tests/e2e/multiclustercidr/multiclustercidr_test.go

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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")
var local = flag.Bool("local", false, "deploy a locally built K3s binary")
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() {
When("Cluster with IPv4 only is created", 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")
if *local {
serverNodeNames, agentNodeNames, err = e2e.CreateLocalCluster(*nodeOS, *serverCount, *agentCount)
} else {
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.RestartCluster(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.IP).Should(Or(ContainSubstring("10.10.10"), ContainSubstring("10.248.")), pod.Name)
}
}
})
It("Destroy Cluster", func() {
Expect(e2e.GetCoverageReport(append(serverNodeNames, agentNodeNames...))).To(Succeed())
if os.Getenv("E2E_GOCOVER") != "" {
Expect(os.Rename("coverage.out", "coverage-ipv4.out")).To(Succeed())
}
Expect(e2e.DestroyCluster()).To(Succeed())
Expect(os.Remove(kubeConfigFile)).To(Succeed())
})
})
When("Cluster with IPv6 only is created", func() {
It("Starts up IPv6 setup with no issues", func() {
var err error
os.Setenv("E2E_IP_FAMILY", "ipv6")
defer os.Unsetenv("E2E_IP_FAMILY")
if *local {
serverNodeNames, agentNodeNames, err = e2e.CreateLocalCluster(*nodeOS, *serverCount, *agentCount)
} else {
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.RestartCluster(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.IP).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.GetCoverageReport(append(serverNodeNames, agentNodeNames...))).To(Succeed())
if os.Getenv("E2E_GOCOVER") != "" {
Expect(os.Rename("coverage.out", "coverage-ipv6.out")).To(Succeed())
}
Expect(e2e.DestroyCluster()).To(Succeed())
Expect(os.Remove(kubeConfigFile)).To(Succeed())
}
})