在CentOS 7上安装Docker

1. 更新系统

   sudo yum update

2. 安装必要的软件包

   sudo yum install -y yum-utils device-mapper-persistent-data lvm2

3. 添加Docker仓库

   sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
   

4. 安装Docker引擎

   sudo yum install docker-ce

5. 启动Docker服务

   sudo systemctl start docker

6. 设置Docker开机自启动

   sudo systemctl enable docker

7. 验证安装是否成功

   sudo docker --version

 Docker Compose安装步骤

1.下载安装

sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

2.给执行权限

sudo chmod +x /usr/local/bin/docker-compose

3.创建链接

sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

4.查看docker-compose版本

docker-compose --version

5.创建docker-compose.yml文件

vim docker-compose.yml

6.使用方法

docker-compose up -d

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