[报错]记一个物理机重启导致docker启动失败的问题

记一个物理机重启导致docker启动失败的问题
docker images
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
启动docker systemctl start docker，但是还是报错：
Job for docker.service failed because start of the service was attempted too often. See “systemctl status docker.service” and “journalctl -xe” for details
用 journalctl -xe 查看启动错误，发现是报错ERROR: ZONE_CONFLICT: ‘docker0’ already bound to a zone
是docker0之前已经创建
firewall-cmd --zone=docker --change-interface=docker0
firewall-cmd --reload 解决