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Ubuntu Install Docker

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更新软件包

sudo apt update
sudo apt install apt-transport-https ca-certificates curl gnupg-agent software-properties-common -y

添加docker官网 GPG 密钥、设置stable 仓库

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

sudo add-apt-repository \
"deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable"

由于网络问题，上面的操作可能会报错，我们使用以下命令，使用阿里云的stable仓库

curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository  \
"deb [arch=amd64] https://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"

安装 Docker

docker --version
sudo systemctl status docker

给Docker设置镜像加速

vim /etc/docker/daemon.json

在网上搜索当前可用的docker registry-mirrors ，因为有些镜像源经常失效，这里不再具体陈述

{
  "registry-mirrors": []
}

加载daemon文件，重启docker

sudo systemctl daemon-reload
sudo systemctl restart docker

卸载docker

docker container stop $(docker container ls -aq)
docker system prune -a --volumes
sudo apt-get purge docker-ce docker-ce-cli containerd.io
sudo apt autoremove
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