连接

通过kubectl来连接其他node上的pod中的容器

[root@m ~]# kubectl get pods -o wideNAME                       READY     STATUS    RESTARTS   AGE       IP            NODEbusybox-3674381263-90hh9   1/1       Running   0          39m       172.30.83.2   192.168.56.202[root@m ~]# kubectl get podsNAME                       READY     STATUS    RESTARTS   AGEbusybox-3674381263-90hh9   1/1       Running   0          39m[root@m ~]# kubectl get nodeNAME             STATUS    AGE192.168.56.201   Ready     2d192.168.56.202   Ready     7d[root@m ~]# kubectl exec -it busybox-3674381263-90hh9 sh/ # ip a1: lo: 
    
      mtu 65536 qdisc noqueue qlen 1    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00    inet 127.0.0.1/8 scope host lo       valid_lft forever preferred_lft forever    inet6 ::1/128 scope host        valid_lft forever preferred_lft forever5: eth0@if6: 
     
       mtu 1450 qdisc noqueue     link/ether 02:42:ac:1e:53:02 brd ff:ff:ff:ff:ff:ff    inet 172.30.83.2/24 scope global eth0       valid_lft forever preferred_lft forever    inet6 fe80::42:acff:fe1e:5302/64 scope link        valid_lft forever preferred_lft forever
     
    

故障

开始的时候不能连接，报错如下：

[root@m ~]# kubectl exec -it busybox-3674381263-90hh9 shError from server: error dialing backend: dial tcp 192.168.56.202:10250: getsockopt: connection refused

排查结果是：