安装 docker

sudo apt install docker.io
sudo apt-get install docker-compose
sudo usermod -aG docker $USER
sudo systemctl daemon-reload
sudo systemctl restart docker

配置国内 docker 镜像源

修改/etc/docker/daemon.json，增加或者修改以下配置：
sudo su
vim /etc/docker/daemon.json
`{
"registry-mirrors": [
"https://dockerproxy.com",
"https://hub-mirror.c.163.com",
"https://mirror.baidubce.com",
"https://docker.1panelproxy.com",
"https://registry.docker-cn.com",
"https://ccr.ccs.tencentyun.com"
],
"dns": ["8.8.8.8","8.8.4.4"]
}`

配置好以后重启docker

systemctl daemon-reload
systemctl restart docker