解决使用docker权限不足需要加sudo问题，Got permission denied while trying to connect to the Docker daemon socket

阳光穿透心脏的1/2处 2021-09-22 01:32 454阅读 0赞

# 前言 #

普通用户使用 `docker` 的时候报权限不足，有两种解决办法，第一种加 `sudo`，第二种把自己添加到 `docker` 用户组

[admin@VM-06-16-centos-8-64 ~]$ docker ps
    Got permission denied while trying to connect to the Docker daemon socket

第一种解决办法，使用 `sudo` 就不会显示权限不足了

[admin@VM-06-16-centos-8-64 ~]$ sudo docker ps
    CONTAINER ID   IMAGE          COMMAND                  CREATED       STATUS       PORTS                                       NAMES
    879c8a6ec919   my-blog-site   "java -jar app.jar -…"   7 weeks ago   Up 6 weeks   0.0.0.0:8080->8080/tcp, :::8080->8080/tcp   my-blog-site
    3ad4bc528353   mariadb:10.3   "docker-entrypoint.s…"   7 weeks ago   Up 7 weeks   0.0.0.0:6606->3306/tcp, :::6606->3306/tcp   site-mariadb-10.3

# 第二种解决办法，添加到docker用户组，彻底释放sudo #

1、可以看下当前用户

# 当前用户显示 admin，就是自己
    [admin@VM-06-16-centos-8-64 ~]$ echo $USER
    admin

2、把当前用户添加到 `docker` 组

命令：`sudo gpasswd -a $USER docker`

# 添加当前用户到的 docker 用户组，输入密码显示下面提示说明成功
    sudo gpasswd -a $USER docker
    [sudo] password for admin:
    Adding user admin to group docker

3、刷新 `docker` 用户组

newgrp docker

就可以直接使用 `docker ps` 了，不用加 `sudo` 了

[admin@VM-06-16-centos-8-64 ~]$ docker ps
    CONTAINER ID   IMAGE          COMMAND                  CREATED       STATUS       PORTS                                       NAMES
    879c8a6ec919   my-blog-site   "java -jar app.jar -…"   7 weeks ago   Up 6 weeks   0.0.0.0:8080->8080/tcp, :::8080->8080/tcp   my-blog-site
    3ad4bc528353   mariadb:10.3   "docker-entrypoint.s…"   7 weeks ago   Up 7 weeks   0.0.0.0:6606->3306/tcp, :::6606->3306/tcp   site-mariadb-10.3

解决使用docker权限不足需要加sudo问题，Got permission denied while trying to connect to the Docker daemon socket

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