2.安装docker、docker compose

1. 安装依赖包

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

2. 设置阿里云docker-ce镜像源

yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

3. docker-ce 安装

yum install -y docker-ce

4. docker-compose 安装（最新版）

sudo curl -L "https://github.com/docker/compose/releases/download/$(curl -s https://api.github.com/repos/docker/compose/releases/latest | grep '\"tag_name\":' | sed -E 's/.*\"([^\"]+)\".*/\1/')/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

5. 增加执行权限

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