Kubernetes访问报错： No route to host

背景

搭建完集群式k8s后，各个节点都已经Ready，但是在创建echo服务进行访问时报错：No route to host

解决

参考链接：https://imlc.me/v/zh-cn/kuai-su-jie-jue-kubernetes-no-route-to-host

(一)集群式部署

[root@k8s-master kong]# systemctl stop kubelet [root@k8s-master kong]# systemctl stop docker [root@k8s-master kong]# iptables --flush [root@k8s-master kong]# iptables -tnat --flush [root@k8s-master kong]# systemctl start kubelet [root@k8s-master kong]# systemctl start docker

（二）Microk8s部署

[root@k8s-master kong]# microk8s stop [root@k8s-master kong]# systemctl stop docker [root@k8s-master kong]# iptables --flush [root@k8s-master kong]# iptables -tnat --flush [root@k8s-master kong]# systemctl start docker [root@k8s-master kong]# microk8s start

测试

[root@k8s-master kong]# kubectl get svc -n demo -o wide NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR echo ClusterIP 10.105.104.233 <none> 8080/TCP,80/TCP 26m app=echo [root@k8s-master kong]# curl http://10.105.104.233 Hostname: echo-8467949b65-mt4vk Pod Information: node name: k8s-worker-1 pod name: echo-8467949b65-mt4vk pod namespace: demo pod IP: 10.36.0.0 Server values: server_version=nginx: 1.13.3 - lua: 10008 Request Information: client_address=10.32.0.1 method=GET real path=/ query= request_version=1.1 request_scheme=http request_uri=http://10.105.104.233:8080/ Request Headers: accept=*/* host=10.105.104.233 user-agent=curl/7.29.0 Request Body: -no body in request-