ERROR: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon runn

docker学习问题记录

打开docker遇到这种情况

ERROR: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

奇怪的是：systemctl restart docker 后作用 systemctl restart docker.service

systemctl status docker 居然显示的是正常状态

查询系统日志发现应该是错误退出的docker导致的

于是使用systemctl stop docker.service

Warning: Stopping docker.service, but it can still be activated by:

docker.socket

虽然是warning，还是去研究一下原因

查询得到解释：

这是docker在关闭状态下被访问自动唤醒机制，很人性化，即这时再执行任意docker命令会直接启动

执行systemctl stop docker后再执行systemctl stop docker.socket即可

成功。重新systemctl start docker.service

docker不再报错