docker swarm join --token 坑点

• 错误信息

Error response from daemon: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial tcp 192.168.48.135:2377: connect: no route to host"

• 解决方案：
  • 关闭防火墙：systemctl stop firewalld.service
  • 然后重启一下docker daemon： systemctl restart docker