calico 排错记录 apt-get install telnet

1.用kubespray部署一个单节点集群，kubectl get pods -n kube-system，结果：

calico-node-7v8wx 1/1 Running 0 2d

calico-node-c7cv8 1/1 Running 0 2d

但是：

kube-dns-7cdf4f69c7-jcvz7 3/3 Running 979 2d

kube-dns-7cdf4f69c7-m2lfk 3/3 Running 980 2d

DNS不断重启，报10.233.0.1:443连不上。猜测应该是calico有问题。

发现了线索：主机名不能有大写字母

Your hosts’ names must be different. Calico uses hostname as a key in the etcd data, and the etcd data is used to autogenerate the correct BIRD config - so a duplicate hostname will prevent correct BIRD setup.

• calicoctl node status: 查看状态，确认没有问题

用一个例子来演示会更加清晰