swarm node异常，尝试 docker swarm leave -f 失败问题

报错：Error response from daemon: context deadline exceeded

解决步骤：

systemctl stop docker.service
cd /var/lib/docker
mv swarm/ swarmXX
systemctl start docker.service
docker swarm join --token SWMTKN-1-xxxxx-yyyyy x.x.x.x:2377

原因：I DO NOT CARE