exec探测方式
[root@master231 pods]# cat 23-pods-readinessprobe-livenessProbe-exec.yaml
apiVersion: apps/v1
kind: Deployment
metadata:name: deploy-readinessprobe
spec:replicas: 3selector:matchLabels:apps: v1template:metadata:labels:apps: v1spec:containers:- image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v1name: c1command: - /bin/sh- -c- touch /tmp/oldboyedu-linux-healthy; sleep 35; rm -f /tmp/oldboyedu-linux-healthy; sleep 600livenessProbe:exec:command:- cat- /tmp/oldboyedu-linux-healthyfailureThreshold: 3initialDelaySeconds: 65periodSeconds: 1successThreshold: 1timeoutSeconds: 1# 可用性检查，周期性检查服务是否可用,从而判断容器是否就绪.readinessProbe:# 使用exec的方式去做健康检查exec:# 自定义检查的命令command:- cat- /tmp/oldboyedu-linux-healthyfailureThreshold: 3initialDelaySeconds: 5periodSeconds: 1successThreshold: 1timeoutSeconds: 1---apiVersion: v1
kind: Service
metadata:name: oldboyedu-readinessprobe-exec
spec:selector:apps: v1ports:- port: 80targetPort: 80protocol: TCP
httpGet探测方式
[root@master231 pods]# cat 24-pods-readinessProbe-httpGet.yaml
apiVersion: v1
kind: Pod
metadata:name: readinessprobe-httpget-001labels:apps: v2
spec:containers:- image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v2name: c1command: - /bin/sh- -c- touch /tmp/oldboyedu-linux-healthy; sleep 5; rm -f /tmp/oldboyedu-linux-healthy; sleep 600livenessProbe:exec:command:- cat- /tmp/oldboyedu-linux-healthyfailureThreshold: 3initialDelaySeconds: 90periodSeconds: 1successThreshold: 1timeoutSeconds: 1# 可用性检查，周期性检查服务是否可用,从而判断容器是否就绪.readinessProbe:# 使用httpGet的方式去做健康检查httpGet:# 指定访问的端口号port: 80path: /index.htmlfailureThreshold: 3initialDelaySeconds: 15periodSeconds: 1successThreshold: 1timeoutSeconds: 1---apiVersion: v1
kind: Service
metadata:name: readinessprobe-httpget
spec:selector:apps: v2ports:- port: 80targetPort: 80protocol: TCPclusterIP: 10.200.0.11
tcpSocket探测方式
[root@master231 pods]# cat 25-pods-readinessProbe-tcpSocket.yaml
apiVersion: v1
kind: Pod
metadata:name: readinessprobe-tcpsocket-001labels:apps: v3
spec:containers:- image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v3name: c1command: - /bin/sh- -c- touch /tmp/oldboyedu-linux-healthy; sleep 15; rm -f /tmp/oldboyedu-linux-healthy; nginx -g "daemon off;"livenessProbe:exec:command:- cat- /tmp/oldboyedu-linux-healthyfailureThreshold: 3initialDelaySeconds: 60periodSeconds: 1successThreshold: 1timeoutSeconds: 1# 可用性检查，周期性检查服务是否可用,从而判断容器是否就绪.readinessProbe:# 使用tcpSocket的方式去做健康检查tcpSocket:# 探测80端口是否存活port: 80failureThreshold: 3initialDelaySeconds: 0periodSeconds: 1successThreshold: 1timeoutSeconds: 1---apiVersion: v1
kind: Service
metadata:name: readinessprobe-tcpsocket
spec:selector:apps: v3ports:- port: 80targetPort: 80clusterIP: 10.200.0.22
测试方式:
[root@master231 ~]# while true;do curl 10.200.0.22;sleep 0.5;done