CKA 模拟真题 Killer.sh | Question 15 | Cluster Event Logging

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Use context: kubectl config use-context k8s-c2-AC

Write a command into /opt/course/15/cluster_events.sh which shows the latest events in the whole cluster, ordered by time ( metadata.creationTimestamp ). Use kubectl for it.

Now kill the kube-proxy Pod running on node cluster2-node1 and write the events this caused into /opt/course/15/pod_kill.log .

Finally kill the containerd container of the kube-proxy Pod on node cluster2-node1 and write the events into /opt/course/15/container_kill.log .

Do you notice differences in the events both actions caused?

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译文

在 /opt/course/15/cluster_events.sh 中写一条命令，显示整个集群的最新事件，按时间（ metadata.creationTimestamp ）排序。使用 kubectl 来实现。

现在，杀死运行在 cluster2-node1 节点上的 kube-proxy Pod，并将其引起的事件写入 /opt/course/15/pod_kill.log 中。

最后，杀死 cluster2-node1 节点上的 kube-proxy Pod的 containerd 容器，并将事件写入 /opt/course/15/container_kill.log 中。

你是否注意到这两个动作引起的事件的不同？

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解答

kubectl config use-context k8s-c2-AC

sh 脚本

echo "kubectl get events -A --sort-by=.metadata.creationTimestamp" > /opt/course/15/cluster_events.sh

查找proxy pod ,并kill node1上面的pod,然后检查日志

k -n kube-system get pod -o wide | grep proxy
k -n kube-system delete pod kube-proxy-
sh /opt/course/15/cluster_events.sh > /opt/course/15/pod_kill.log

连接到node1并结束掉proxy 容器

ssh cluster2-node1
root@cluster2-node1:~# crictl ps | grep kube-proxy
root@cluster2-node1:~# crictl stop 254ceb6e415ac
root@cluster2-node1:~# crictl ps | grep kube-proxy

写日志

sh /opt/course/15/cluster_events.sh > /opt/course/15/container_kill.log