1.系统优化基础操作

hostnamectl set-hostname  master && bash
sudo systemctl stop ufw
sudo systemctl disable ufw
sudo apt update
sudo apt-get  -y upgrade

2.卸载原来安装的

sudo apt-get remove docker docker-engine docker.io containerd runc

3. 安装docker

sudo apt-get install apt-transport-https ca-certificates curl gnupg2 software-properties-common #安装依赖#信任 Docker 的 GPG 公钥并添加仓库
sudo mkdir -m 0755 -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
echo \"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://mirror.nju.edu.cn/docker-ce/linux/ubuntu \$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null#安装指定版本  首选查看都有哪些版本可选
apt-cache madison docker-cesudo apt-get update
sudo apt-get install docker-ce  #安装最新版本docker --version

root@master:~# docker --version
Docker version 24.0.5, build ced0996
root@master:~#