k8s - livenessProve - httpGet 存活性探测

最新推荐文章于 2025-06-08 09:19:07 发布

wang725

最新推荐文章于 2025-06-08 09:19:07 发布

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本文链接：https://blog.youkuaiyun.com/wang725/article/details/104348020

本文通过实例演示了如何在Kubernetes中使用HTTP GET探针进行容器的存活状态检查。通过配置Pod的livenessProbe，当容器内的网页无法访问时，Kubernetes会自动重启容器，确保服务的高可用性。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

[root@k8s-master01 k8s-test]# cat livenessProbe-httpget.yaml 
apiVersion: v1
kind: Pod
metadata:
  name: liveness-httpget-pod
  namespace: default
spec:
  containers:
  - name: liveness-httpget-container
    image: kone.com/library/nginx
    imagePullPolicy: IfNotPresent
    ports:
    - name: http
      containerPort: 80
    livenessProbe:
      httpGet:
        port: http
        path: /index.html
      initialDelaySeconds: 1
      periodSeconds: 3
      timeoutSeconds: 10
[root@k8s-master01 k8s-test]#

创建kubectl create -f livenessProbe-httpget.yaml
查看此时重启次数为0


[root@k8s-master01 k8s-test]# kubectl get pod
NAME                               READY   STATUS             RESTARTS   AGE
liveness-httpget-pod               1/1     Running            0          4m31s

进入容器删除/usr/share/nginx/html/index.htm
kubectl exec -it liveness-httpget-pod -- rm -f /usr/share/nginx/html/index.html
然后看容器的重启次数为1


[root@k8s-master01 k8s-test]# kubectl get pod -w
NAME                               READY   STATUS    RESTARTS   AGE
liveness-httpget-pod               1/1     Running   1          7m25s