k3s/tests/e2e/startup/startup_test.go

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package startup
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 ci = flag.Bool("ci", false, "running on CI")
// Environment Variables Info:
// E2E_RELEASE_VERSION=v1.23.1+k3s2 or nil for latest commit from master
// This test suite is used to verify that K3s can start up with dynamic configurations that require
// both server and agent nodes. It is unique in passing dynamic arguments to vagrant, unlike the
// rest of the E2E tests, which use static Vagrantfiles and cluster configurations.
// If you have a server only flag, the startup integration test is a better place to test it.
func Test_E2EStartupValidation(t *testing.T) {
RegisterFailHandler(Fail)
flag.Parse()
suiteConfig, reporterConfig := GinkgoConfiguration()
RunSpecs(t, "Startup Test Suite", suiteConfig, reporterConfig)
}
var (
kubeConfigFile string
serverNodeNames []string
agentNodeNames []string
)
func StartK3sCluster(nodes []string, serverYAML string, agentYAML string) error {
for _, node := range nodes {
var yamlCmd string
var resetCmd string
var startCmd string
if strings.Contains(node, "server") {
resetCmd = "sudo head -n 3 /etc/rancher/k3s/config.yaml > /tmp/config.yaml && sudo mv /tmp/config.yaml /etc/rancher/k3s/config.yaml"
yamlCmd = fmt.Sprintf("sudo echo '%s' >> /etc/rancher/k3s/config.yaml", serverYAML)
startCmd = "sudo systemctl start k3s"
} else {
resetCmd = "sudo head -n 4 /etc/rancher/k3s/config.yaml > /tmp/config.yaml && sudo mv /tmp/config.yaml /etc/rancher/k3s/config.yaml"
yamlCmd = fmt.Sprintf("sudo echo '%s' >> /etc/rancher/k3s/config.yaml", agentYAML)
startCmd = "sudo systemctl start k3s-agent"
}
if _, err := e2e.RunCmdOnNode(resetCmd, node); err != nil {
return err
}
if _, err := e2e.RunCmdOnNode(yamlCmd, node); err != nil {
return err
}
if _, err := e2e.RunCmdOnNode(startCmd, node); err != nil {
return &e2e.NodeError{Node: node, Cmd: startCmd, Err: err}
}
}
return nil
}
func KillK3sCluster(nodes []string) error {
for _, node := range nodes {
if _, err := e2e.RunCmdOnNode("sudo k3s-killall.sh", node); err != nil {
return err
}
}
return nil
}
var _ = ReportAfterEach(e2e.GenReport)
var _ = Describe("Various Startup Configurations", Ordered, func() {
Context("Verify CRI-Dockerd :", func() {
It("Stands up the nodes", func() {
var err error
serverNodeNames, agentNodeNames, err = e2e.CreateLocalCluster(*nodeOS, 1, 1)
Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
})
It("Starts K3s with no issues", func() {
dockerYAML := "docker: true"
err := StartK3sCluster(append(serverNodeNames, agentNodeNames...), dockerYAML, dockerYAML)
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 and pod status", func() {
fmt.Printf("\nFetching node status\n")
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"))
}
}, "620s", "5s").Should(Succeed())
_, _ = e2e.ParseNodes(kubeConfigFile, true)
fmt.Printf("\nFetching pods status\n")
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)
}
}
}, "620s", "5s").Should(Succeed())
_, _ = e2e.ParsePods(kubeConfigFile, true)
})
It("Kills the cluster", func() {
err := KillK3sCluster(append(serverNodeNames, agentNodeNames...))
Expect(err).NotTo(HaveOccurred())
})
})
Context("Verify prefer-bundled-bin flag", func() {
It("Starts K3s with no issues", func() {
preferBundledYAML := "prefer-bundled-bin: true"
err := StartK3sCluster(append(serverNodeNames, agentNodeNames...), preferBundledYAML, preferBundledYAML)
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 and pod status", func() {
fmt.Printf("\nFetching node status\n")
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"))
}
}, "620s", "5s").Should(Succeed())
_, _ = e2e.ParseNodes(kubeConfigFile, true)
fmt.Printf("\nFetching pods status\n")
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)
}
}
}, "620s", "5s").Should(Succeed())
_, _ = e2e.ParsePods(kubeConfigFile, true)
})
It("Kills the cluster", func() {
err := KillK3sCluster(append(serverNodeNames, agentNodeNames...))
Expect(err).NotTo(HaveOccurred())
})
})
})
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())
}
})