Ubuntu16.4:Got permission denied while trying to connect to the Docker daemon socket

在輸入命令的過程中一直報錯：
Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.40/containers/mysql8.0/json: dial unix /var/run/docker.sock: connect: permission denied
原因是我登陸的ubutun賬號不是root，所以執行命令啓動某個東西的時候一直抱着個錯，
後來把命令前面價格sudo 之後就可以了