安装依赖与配置仓库

更新软件包索引并安装依赖

sudo apt update
sudo apt install ca-certificates curl gnupg lsb-release

添加 Docker 官方 GPG 密钥

sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

添加 Docker 官方 APT 源

echo \
“deb [arch=$(dpkg –print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
$(. /etc/os-release && echo “${UBUNTU_CODENAME:-$VERSION_CODENAME}”) stable” | \
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

再次更新软件包索引

sudo apt update

3. 安装 Docker 引擎

bash
sudo apt install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
安装完成后，Docker 服务会自动启动。