Docker配置操作无须sudo

1. 查看docker版本

   docker安装后，如果没有设置权限，直接使用docker 命令，会提示缺少权限

hotpod@bytetoy.cn:~$ docker version
Client: Docker Engine - Community
 Version:           24.0.7
 API version:       1.43
 Go version:        go1.20.10
 Git commit:        afdd53b
 Built:             Thu Oct 26 09:08:02 2023
 OS/Arch:           linux/amd64
 Context:           default
permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fvar%2Frun%2Fdocker.sock/v1.24/version": dial unix /var/run/docker.sock: connect: permission denied

1. 查看是否有用户组

   hotpod@bytetoy.cn:~$ sudo cat /etc/group | grep docker
   [sudo] password for hotpod: 
   docker:x:995:
   

2. 查看docker.sock权限和用户组

   hotpod@bytetoy.cn:~$ ll /var/run/docker.sock 
   srw-rw---- 1 root docker 0 Dec  7 15:59 /var/run/docker.sock
   

3. 修改docker.sock权限

   hotpod@bytetoy.cn:~$ sudo chmod a+rw /var/run/docker.sock
   

4. 将当前用户添加至docker用户组

   hotpod@bytetoy.cn:~$ sudo gpasswd -a ${USER} docker
   Adding user hotpod to group docker
   hotpod@bytetoy.cn:~$ sudo cat /etc/group | grep docker
   docker:x:995:hotpod
   

5. 测试

   hotpod@bytetoy.cn:~$ docker version 
   Client: Docker Engine - Community
   Version:           24.0.7
   API version:       1.43
   Go version:        go1.20.10
   Git commit:        afdd53b
   Built:             Thu Oct 26 09:08:02 2023
   OS/Arch:           linux/amd64
   Context:           default
   Server: Docker Engine - Community
   Engine:
   Version:          24.0.7
   API version:      1.43 (minimum version 1.12)
   Go version:       go1.20.10
   Git commit:       311b9ff
   Built:            Thu Oct 26 09:08:02 2023
   OS/Arch:          linux/amd64
   Experimental:     false
   containerd:
   Version:          1.6.25
   GitCommit:        d8f198a4ed8892c764191ef7b3b06d8a2eeb5c7f
   runc:
   Version:          1.1.10
   GitCommit:        v1.1.10-0-g18a0cb0
   docker-init:
   Version:          0.19.0
   GitCommit:        de40ad0