官方文档地址

官方文档权限介绍

The Docker daemon binds to a Unix socket instead of a TCP port. By default that Unix socket is owned by the user `root` and other users can only access it using `sudo`. The Docker daemon always runs as the `root` user.

If you don’t want to preface the docker command with sudo, create a Unix group called docker and add users to it. When the Docker daemon starts, it creates a Unix socket accessible by members of the docker group.

普通用户执行权限添加

1. 创建docker用户组

   sudo groupadd docker

2. 添加你想用普通用户权限的用户名到docker用户组

   sudo usermod -aG docker $USER
   

3. 系统重启后就可以使用普通用户权限执行docker, 如果不想重启，可以使用下面的命令更新并激活组权限

   newgrp docker
   

4. 验证设置是否成功

   docker run hello-world
   

   如果出现下面错误提示，建议重启电脑：

   WARNING: Error loading config file: /home/user/.docker/config.json -
   stat /home/user/.docker/config.json: permission denied
   

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