Error: client: etcd cluster is unavailable or misconfigured; error #0: dial tcp 127.0.0.1:4001: getsockopt: connection refused

配置docker网络flannel时，配置etcd的key的时候出现以下错误

Error:  client: etcd cluster is unavailable or misconfigured; error #0: dial tcp 127.0.0.1:4001: getsockopt: connection refused
; error #1: dial tcp 127.0.0.1:2379: getsockopt: connection refused

error #0: dial tcp 127.0.0.1:4001: getsockopt: connection refused
error #1: dial tcp 127.0.0.1:2379: getsockopt: connection refused

解决办法：

修改etcd的配置文件：

vim /etc/etcd/etcd.conf

在  第6行，后面配置http://127.0.0.1:2379，与本机自己进行通信，  ETCD_LISTEN_CLIENT_URLS="http://192.168.7.78:2379,http://127.0.0.1:2379"

然后重启etcd服务即可