在 ubuntu 安装 docker

install-docker-ubuntu.sh

#!/bin/bash

# step 1: 安装必要的一些系统工具
apt-get update

apt-get install -y \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

# step 2: 安装GPG证书
mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg
chmod a+r /etc/apt/keyrings/docker.gpg

# Step 3: 写入软件源信息
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null

# Step 4: 更新并安装 Docker-CE
apt-get update
apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin

# 5. 启动
service docker start