Docker的彻底删除与重新安装（ubuntu22.04）

一、首先我们彻底删除Docker

1、删除docker及安装时自动安装的所有包

sudo apt-get autoremove docker docker-ce docker-engine docker.io containerd runc

2、删除无用的相关的配置文件

 sudo dpkg -l |grep ^rc|awk '{print $2}' |sudo xargs dpkg -P

3、删除相关插件

sudo apt-get autoremove docker-ce-*

4、删除docker的相关配置和目录

sudo rm -rf /etc/systemd/system/docker.service.d

sudo rm -rf /var/lib/docker

二、重新安装

我们可以访问Docker的官方网站来根据自己的系统获取Docker

https://docs.docker.com/engine/install/

这里以ubuntu为例：

1、添加 Docker 的官方 GPG 密钥：

sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

2、将存储库添加到 Apt 源

echo \"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \$(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update

3、安装最新版本的Docker

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

然后拉取hello-world并运行：

sudo docker pull hello-world
sudo docker run hello-world

如果拉取镜像慢的话，可以将/etc/docker/daemon.json中的内容修改为：

{"registry-mirrors": ["https://2a6bf1988cb6428c877f723ec7530dbc.mirror.swr.myhuaweicloud.com","https://docker.m.daocloud.io","https://hub-mirror.c.163.com","https://mirror.baidubce.com","https://your_preferred_mirror","https://dockerhub.icu","https://docker.registry.cyou","https://docker-cf.registry.cyou","https://dockercf.jsdelivr.fyi","https://docker.jsdelivr.fyi","https://dockertest.jsdelivr.fyi","https://mirror.aliyuncs.com","https://dockerproxy.com","https://mirror.baidubce.com","https://docker.m.daocloud.io","https://docker.nju.edu.cn","https://docker.mirrors.sjtug.sjtu.edu.cn","https://docker.mirrors.ustc.edu.cn","https://mirror.iscas.ac.cn","https://docker.rainbond.cc"]
}