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E2E: Startup test cleanup + RunCommand Enhancement (k3s-io#7388)
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* Add beforesuite to startup
* Reduce timeouts for startup
* Fix cleanup + set kubeconfig

Signed-off-by: Derek Nola <[email protected]>
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dereknola committed May 9, 2023
1 parent b28d4ae commit 4f1315f
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Showing 3 changed files with 106 additions and 17 deletions.
11 changes: 9 additions & 2 deletions .drone.yml
Original file line number Diff line number Diff line change
Expand Up @@ -621,8 +621,15 @@ steps:
- cd ../secretsencryption
- vagrant destroy -f
- go test -v -timeout=30m ./secretsencryption_test.go -ci -local
- cd ../upgradecluster
- E2E_RELEASE_CHANNEL="v1.25" go test -v -timeout=45m ./upgradecluster_test.go -ci -local
- cd ../startup
- vagrant destroy -f
- go test -v -timeout=30m ./startup_test.go -ci -local
- |
if [ "$DRONE_BUILD_EVENT" = "pull_request" ]; then
cd ../upgradecluster
vagrant destroy -f
E2E_RELEASE_CHANNEL="latest" go test -v -timeout=45m ./upgradecluster_test.go -ci -local
fi
- docker stop registry && docker rm registry

volumes:
Expand Down
103 changes: 90 additions & 13 deletions tests/e2e/startup/startup_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -71,23 +71,29 @@ func KillK3sCluster(nodes []string) error {
if _, err := e2e.RunCmdOnNode("sudo k3s-killall.sh", node); err != nil {
return err
}
if strings.Contains(node, "server") {
if _, err := e2e.RunCmdOnNode("sudo rm -rf /var/lib/rancher/k3s/server/db", node); err != nil {
return err
}
}
}
return nil
}

var _ = ReportAfterEach(e2e.GenReport)

var _ = BeforeSuite(func() {
var err error
if *local {
serverNodeNames, agentNodeNames, err = e2e.CreateLocalCluster(*nodeOS, 1, 1)
} else {
serverNodeNames, agentNodeNames, err = e2e.CreateCluster(*nodeOS, 1, 1)
}
Expect(err).NotTo(HaveOccurred(), e2e.GetVagrantLog(err))
})

var _ = Describe("Various Startup Configurations", Ordered, func() {
Context("Verify CRI-Dockerd :", func() {
It("Stands up the nodes", func() {
var err error
if *local {
serverNodeNames, agentNodeNames, err = e2e.CreateLocalCluster(*nodeOS, 1, 1)
} else {
serverNodeNames, agentNodeNames, err = e2e.CreateCluster(*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)
Expand All @@ -109,7 +115,7 @@ var _ = Describe("Various Startup Configurations", Ordered, func() {
for _, node := range nodes {
g.Expect(node.Status).Should(Equal("Ready"))
}
}, "620s", "5s").Should(Succeed())
}, "360s", "5s").Should(Succeed())
_, _ = e2e.ParseNodes(kubeConfigFile, true)

fmt.Printf("\nFetching pods status\n")
Expand All @@ -123,7 +129,7 @@ var _ = Describe("Various Startup Configurations", Ordered, func() {
g.Expect(pod.Status).Should(Equal("Running"), pod.Name)
}
}
}, "620s", "5s").Should(Succeed())
}, "360s", "5s").Should(Succeed())
_, _ = e2e.ParsePods(kubeConfigFile, true)
})
It("Kills the cluster", func() {
Expand Down Expand Up @@ -153,7 +159,7 @@ var _ = Describe("Various Startup Configurations", Ordered, func() {
for _, node := range nodes {
g.Expect(node.Status).Should(Equal("Ready"))
}
}, "620s", "5s").Should(Succeed())
}, "360s", "5s").Should(Succeed())
_, _ = e2e.ParseNodes(kubeConfigFile, true)

fmt.Printf("\nFetching pods status\n")
Expand All @@ -167,14 +173,85 @@ var _ = Describe("Various Startup Configurations", Ordered, func() {
g.Expect(pod.Status).Should(Equal("Running"), pod.Name)
}
}
}, "620s", "5s").Should(Succeed())
}, "360s", "5s").Should(Succeed())
_, _ = e2e.ParsePods(kubeConfigFile, true)
})
It("Kills the cluster", func() {
err := KillK3sCluster(append(serverNodeNames, agentNodeNames...))
Expect(err).NotTo(HaveOccurred())
})
})
Context("Verify disable-agent and egress-selector-mode flags", func() {
It("Starts K3s with no issues", func() {
disableAgentYAML := "disable-agent: true\negress-selector-mode: cluster"
err := StartK3sCluster(append(serverNodeNames, agentNodeNames...), disableAgentYAML, "")
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"))
}
}, "360s", "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)
}
}
}, "360s", "5s").Should(Succeed())
_, _ = e2e.ParsePods(kubeConfigFile, true)
})

It("Returns pod metrics", func() {
cmd := "kubectl top pod -A"
Eventually(func() error {
_, err := e2e.RunCommand(cmd)
return err
}, "600s", "5s").Should(Succeed())
})

It("Returns node metrics", func() {
cmd := "kubectl top node"
_, err := e2e.RunCommand(cmd)
Expect(err).NotTo(HaveOccurred())
})

It("Runs an interactive command a pod", func() {
cmd := "kubectl run busybox --rm -it --restart=Never --image=rancher/mirrored-library-busybox:1.34.1 -- uname -a"
_, err := e2e.RunCmdOnNode(cmd, serverNodeNames[0])
Expect(err).NotTo(HaveOccurred())
})

It("Collects logs from a pod", func() {
cmd := "kubectl logs -n kube-system -l app.kubernetes.io/name=traefik -c traefik"
_, err := e2e.RunCommand(cmd)
Expect(err).NotTo(HaveOccurred())
})

It("Kills the cluster", func() {
err := KillK3sCluster(append(serverNodeNames, agentNodeNames...))
Expect(err).NotTo(HaveOccurred())
})
})
})

var failed bool
Expand Down
9 changes: 7 additions & 2 deletions tests/e2e/testutils.go
Original file line number Diff line number Diff line change
Expand Up @@ -303,6 +303,9 @@ func GenKubeConfigFile(serverName string) (string, error) {
if err := os.WriteFile(kubeConfigFile, []byte(kubeConfig), 0644); err != nil {
return "", err
}
if err := os.Setenv("E2E_KUBECONFIG", kubeConfigFile); err != nil {
return "", err
}
return kubeConfigFile, nil
}

Expand Down Expand Up @@ -437,17 +440,19 @@ func RestartClusterAgent(nodeNames []string) error {

// RunCmdOnNode executes a command from within the given node
func RunCmdOnNode(cmd string, nodename string) (string, error) {
runcmd := "vagrant ssh -c \"" + cmd + "\" " + nodename
runcmd := "vagrant ssh " + nodename + " -c \"" + cmd + "\""
out, err := RunCommand(runcmd)
if err != nil {
return out, fmt.Errorf("failed to run command: %s on node %s: %s, %v", cmd, nodename, out, err)
}
return out, nil
}

// RunCommand executes a command on the host
func RunCommand(cmd string) (string, error) {
c := exec.Command("bash", "-c", cmd)
if kc, ok := os.LookupEnv("E2E_KUBECONFIG"); ok {
c.Env = append(os.Environ(), "KUBECONFIG="+kc)
}
out, err := c.CombinedOutput()
return string(out), err
}
Expand Down

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