以下操作来源于https://www.jb51.net/server/338655pwg.htm ，个人验证成功，以防万一简化记录于此,如果卸载方法不起作用可尝试https://blog.csdn.net/qq_44956040/article/details/148402194 这一篇。

Docker安装

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

Docker卸载

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

Docker拉取镜像加速

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.aliyunccnblogs.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"
    ]
}