Chef 是一个系统集成框架，为整个架构提供配置管理功能，有了 Chef 你可以：
- Manage your servers by writing CODE, not by runNing commands. (via Cookbooks)
- IntegRATe tightly with your applications, Databases, LDAP direcTorIEs, and more. (via Libraries)
- Easily configure applications that require knowlEdge about your entire infrastructure ("What systems are running my application?" "What is the current master database server?")