卸载docker
1: yum remove docker
docker-client
docker-client-latest
docker-common
docker-latest
docker-latest-logrotate
docker-logrotate
docker-engine
2: rm -rf /etc/systemd/system/docker.service.d
rm -rf /etc/systemd/system/docker.service
3:rm -rf /var/lib/docker
4: rm -rf /var/run/docker
5: rm -rf /opt/xb
rm -rf /data/xb
rm -rf /etc/docker
6: rm -rf /lib/systemd/system/docker
rm -rf /usr/lib/systemd/system/docker
7 : yum install docker-ce docker-ce-cli containerd.io
rpm -qa|grep docker
