Linux 系统安装
Ubuntu/Debian 系统
# 1. 更新包索引
sudo apt-get update
# 2. 安装依赖包
sudo apt-get install -y \
apt-transport-https \
ca-certificates \
curl \
gnupg \
lsb-release
# 3. 添加 Docker 官方 GPG 密钥
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
# 4. 设置稳定版仓库
echo \
"deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
# 5. 安装 Docker Engine
sudo apt-get update
sudo apt-get install -y docker-ce docker-ce-cli containerd.io
# 6. 验证安装
sudo docker run hello-world
CentOS/RHEL 系统
# 1. 安装依赖包
sudo yum install -y yum-utils
# 2. 添加 Docker 仓库
sudo yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
# 3. 安装 Docker
sudo yum install -y docker-ce docker-ce-cli containerd.io
# 4. 启动 Docker
sudo systemctl start docker
sudo systemctl enable docker
# 5. 验证安装
sudo docker run hello-world
2.2 配置镜像加速器
配置方法
# 创建或编辑 Docker 配置文件
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": [
"https://docker.mirrors.ustc.edu.cn",
"https://hub-mirror.c.163.com",
"https://mirror.baidubce.com"
],
"log-driver": "json-file",
"log-opts": {
"max-size": "100m",
"max-file": "3"
}
}
EOF
# 重启 Docker 服务
sudo systemctl daemon-reload
sudo systemctl restart docker
# 验证配置
sudo docker info | grep -A 10 "Registry Mirrors"
2.3 用户权限配置
# 将当前用户添加到 docker 组
sudo usermod -aG docker $USER
# 刷新用户组（需要重新登录或执行）
newgrp docker
# 验证（不需要 sudo）
docker run hello-world