一、离线安装docker

下载以下文件后，按顺序安装

.
├── containerd.io_1.7.27-1_amd64.deb
├── docker-buildx-plugin_0.23.0-1~ubuntu.20.04~focal_amd64.deb
├── docker-ce_28.1.1-1~ubuntu.20.04~focal_amd64.deb
├── docker-ce-cli_28.1.1-1~ubuntu.20.04~focal_amd64.deb
└── docker-compose-plugin_2.35.1-1~ubuntu.20.04~focal_amd64.deb

# 全部安装
sudo dpkg -i *.deb

• 安装成功后，验证启动

sudo systemctl start docker
sudo systemctl enable docker

# 验证版本
docker --version
docker compose version
docker buildx version

# 测试运行
sudo docker run hello-world