Compose允许用户通过一个单独的docker-compose.yml模板文件（YAML 格式）来定义一组相关联的应用容器为一个项目（project）
一 安装：用于一次性部署多个容器，通过一个yml文件来启动
1.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. chmod +x /usr/local/bin/docker-compose
3. docker-compose --version
卸载：sudo rm -f /usr/local/bin/docker-compose
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