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test: add REBOOT_CONTROL_PLANE_NODES E2E config (Azure#3745)
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111 changes: 111 additions & 0 deletions
111
test/e2e/kubernetes/workloads/reboot-control-plane-node.yaml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| # How this works: | ||
| # On every master, a pod will run that will try to get an annotation lock | ||
| # once it gets the lock for its node, it releases it, sleeps a bit and | ||
| # then loops until it can get it again. | ||
| # After it gets it the second time, it will then trigger a node hard reboot | ||
| # (Since force or double force) | ||
| # Then, when the node (master) comes back up, it will again run this pod | ||
| # and it will again see it has the annotation and will release it, letting | ||
| # another node race to get it. | ||
| # Works with ubuntu 16.04 and 18.04 on kubernetes 1.15+ (may work earlier) | ||
| apiVersion: apps/v1 | ||
| kind: DaemonSet | ||
| metadata: | ||
| labels: | ||
| app: reboot-test | ||
| name: reboot-test | ||
| namespace: default | ||
| spec: | ||
| selector: | ||
| matchLabels: | ||
| app: reboot-test | ||
| template: | ||
| metadata: | ||
| labels: | ||
| app: reboot-test | ||
| spec: | ||
| # This restricts this to masters | ||
| affinity: | ||
| nodeAffinity: | ||
| requiredDuringSchedulingIgnoredDuringExecution: | ||
| nodeSelectorTerms: | ||
| - matchExpressions: | ||
| - key: kubernetes.azure.com/role | ||
| operator: In | ||
| values: | ||
| - master | ||
| containers: | ||
| - name: reboot-test | ||
| image: ubuntu:18.04 | ||
| imagePullPolicy: IfNotPresent | ||
| command: | ||
| - bash | ||
| - -c | ||
| - >- | ||
| while [[ $(kubectl --request-timeout 30s annotate namespace ${LOCK_NS} ${LOCK_NAME}=${NODE_ID} 2>&1) != *\(${NODE_ID}\)* ]]; | ||
| do sleep ${CHECK_FREQUENCY}; done; | ||
| kubectl --request-timeout 30s annotate namespace ${LOCK_NS} ${LOCK_NAME}-; | ||
| sleep ${CHECK_DELAY}; | ||
| while [[ $(kubectl --request-timeout 30s annotate namespace ${LOCK_NS} ${LOCK_NAME}=${NODE_ID} 2>&1) != *\(${NODE_ID}\)* ]]; | ||
| do sleep ${CHECK_FREQUENCY}; done; | ||
| echo >/etc/cron.d/reboot-test "* * * * * root /bin/bash -c '/bin/rm -f /etc/cron.d/reboot-test; /sbin/reboot ${FORCE}' >/var/log/RebootTest.log 2>&1"; | ||
| echo "Waiting for the reboot to happen..."; | ||
| sleep 1000 | ||
| env: | ||
| - name: KUBECONFIG | ||
| value: /.kubeconfig | ||
| - name: NODE_ID | ||
| valueFrom: | ||
| fieldRef: | ||
| apiVersion: v1 | ||
| fieldPath: spec.nodeName | ||
| - name: LOCK_NS | ||
| value: default | ||
| - name: LOCK_NAME | ||
| value: RebootTest | ||
| # CHECK_DELAY should be larger than CHECK_FREQUENCY to randomize who reboots | ||
| - name: CHECK_DELAY | ||
| value: 60s | ||
| - name: CHECK_FREQUENCY | ||
| value: 30s | ||
| - name: FORCE | ||
| value: --force | ||
| # For harder reboot, without process kill, use double-force... | ||
| # value: --force --force | ||
| volumeMounts: | ||
| - name: node-crond | ||
| mountPath: /etc/cron.d | ||
| - name: kubectl | ||
| mountPath: /usr/local/bin/kubectl | ||
| readOnly: true | ||
| - name: kubeconfig | ||
| mountPath: /.kubeconfig | ||
| readOnly: true | ||
| - name: certs | ||
| mountPath: /etc/kubernetes/certs | ||
| readOnly: true | ||
| dnsPolicy: ClusterFirst | ||
| nodeSelector: | ||
| beta.kubernetes.io/os: linux | ||
| restartPolicy: Always | ||
| terminationGracePeriodSeconds: 0 | ||
| tolerations: | ||
| - effect: NoSchedule | ||
| operator: Exists | ||
| volumes: | ||
| - hostPath: | ||
| path: /etc/cron.d | ||
| name: node-crond | ||
| - hostPath: | ||
| path: /etc/kubernetes/certs | ||
| name: certs | ||
| - hostPath: | ||
| path: /var/lib/kubelet/kubeconfig | ||
| name: kubeconfig | ||
| - hostPath: | ||
| path: /usr/local/bin/kubectl | ||
| name: kubectl | ||
| updateStrategy: | ||
| rollingUpdate: | ||
| maxUnavailable: 1 | ||
| type: RollingUpdate |
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