ubuntu: 安装 docker/docker-compose

更新，添加基本软件

sudo apt update
sudo apt install apt-transport-https ca-certificates curl software-properties-common
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"
apt-cache policy docker-ce

sudo apt install docker-ce
sudo systemctl status docker

sudo usermod -aG docker ${USER}

实际上这个命令并不是必须的，因为 docker compose 自带了

不过，之前一些 ntl 里带了这个，安装一下方便使用

# 下载最新版（Linux 示例）
sudo curl -L https://web-assets.alo7.com/assets/bins/docker-compose/docker-compose-linux-x86_64 -o /usr/local/bin/docker-compose

# 更通用的方式
sudo curl -L "https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

# 添加执行权限
sudo chmod +x /usr/local/bin/docker-compose

# 验证
docker-compose --version