仅供参考，当谈到docker和kubernetes时，超级傻瓜。
这是我的情况，最后两个 nodelocaldns 窗格处于 CrashLoopBackOff 状态。
root@test-master:~# kubectl get pods -n kube-system
NAMEREADY STATUS RESTARTS AGE
calico-kube-controllers-64f98644-9l855 1/1 Running 0 6d21h
calico-node-8w9tz 1/1 Running 1 6d21h
calico-node-cvtrx 1/1 Running 1 6d21h
calico-node-glp6x 1/1 Running 1 6d21h
coredns-74c9d4d795-4z9xt 1/1 Running 0 6d2h
coredns-74c9d4d795-cfc7p 1/1 Running 1 6d2h
dns-autoscaler-7d95989447-fngw6 1/1 Running 0 6d21h
kube-apiserver-test-master 1/1 Running 0 6d21h
kube-controller-manager-test-master 1/1 Running 1 6d21h
kube-proxy-b7rjs 1/1 Running 1 6d2h
kube-proxy-chc94 1/1 Running 1 6d2h
kube-proxy-sx5rt 1/1 Running 0 6d2h
kube-scheduler-test-master 1/1 Running 1 6d21h
kubernetes-dashboard-7c547b4c64-9bsgx 1/1 Running 0 6d21h
nginx-proxy-test-worker1 1/1 Running 1 6d21h
nginx-proxy-test-worker2 1/1 Running 1 6d21h
nodelocaldns-5mzlc 1/1 Running 361 6d21h
nodelocaldns-5qvhc 0/1 CrashLoopBackOff 1948 6d21h
nodelocaldns-lmlpr 0/1 CrashLoopBackOff 1937 6d21h
root@test-master:~#
在查看所有三个 nodelocaldns 的日志时，这是我看到的：
root@test-master:~# kubectl logs **nodelocaldns-5mzlc** -n kube-system
2020/07/25 09:54:38 2020-07-25T09:54:38.452Z [INFO] Tearing down
2020/07/25 09:54:38 2020-07-25T09:54:38.553Z [INFO] Setting up networking for node cache
cluster.local.:53 on 169.254.25.10
in-addr.arpa.:53 on 169.254.25.10
ip6.arpa.:53 on 169.254.25.10
.:53 on 169.254.25.10
2020-07-25T09:54:38.589Z [INFO] CoreDNS-1.2.6
2020-07-25T09:54:38.589Z [INFO] linux/amd64, go1.11.10,
CoreDNS-1.2.6
linux/amd64, go1.11.10,
[INFO] plugin/reload: Running configuration MD5 = cd88e46f28ab8d7e0c280ec4dd60bbb9
root@test-master:~#
root@test-master:~# kubectl logs **nodelocaldns-5qvhc** -n kube-system
2020/07/31 00:08:59 2020-07-31T00:08:59.805Z [INFO] Tearing down
2020/07/31 00:08:59 2020-07-31T00:08:59.889Z [INFO] Setting up networking for node cache
listen tcp 169.254.25.10:53: bind: address already in use
root@test-master:~# kubectl logs **nodelocaldns-lmlpr** -n kube-system
Error from server (InternalError): Internal error occurred: Authorization error (user=kube-apiserver-kubelet-client, verb=get, resource=nodes, subresource=proxy)
root@test-master:~#
这里有一些初步问题
＃1当我为两个工作节点创建ubuntu时，我让它启用了一堆服务，其中一个是DNS。这会导致我当前的问题吗？
＃2后两个nodelocaldns pod是否处于 CrashLoopBackOff 状态，因为第一个nodelocaldns pod已在使用169.254.25.10？