这里写自定义目录标题
不使用sudo运行docker会产成权限问题
docker: permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Head "http://%2Fvar%2Frun%2Fdocker.sock/_ping": dial unix /var/run/docker.sock: connect: permission denied.
See 'docker run --help'.
解决方案
sudo groupadd docker
sudo gpasswd -a ${USER} docker
newgrp docker