什么是Serverless？
在《Serverless Architectures》中对 Serverless 是这样子定义的：
Serverless was first used to describe applications that significantly or fully incorporate third-party, cloud-hosted applications and services, to manage server-side logic and state. These are typically “rich client” applications—think single-page web apps, or mobile apps—that use the vast ecosystem of cloud-accessible databases (e.g., Parse, Firebase), authentication services(e.g., Auth0, AWS Cognito), and so on. These types of services have been previously described as “(Mobile) Backend as a service", and I use “BaaS” as shorthand in the rest of this article. Serverless can also mean applications where server-side logic is still written by the application developer, but, unlike traditional architectures, it’s run in stateless compute containers that are event-triggered, ephemeral (may only last for one invocation), and fully managed by a third party. One way to think of this is “Functions as a Service” or “FaaS”.(Note: The original source for this name—a tweet by @marak—isno longer publicly available.) AWS Lambda is one of the most popular implementations of a Functions-as-a-Service platform at present, but there are many others, too.
这样的描述我相信有很多小伙伴不明白，我们可以这样子来理解Serverless：
它的中文直译就是【无服务器】
目前对于 Serverless 有几种解读方法：
- 在某些场景可以解读为一种软件系统架构方法，通常称为 Serverless 架构
- 而在另一些情况下，又可以代表一种产品形态，称为 Serverless 产品
可以理解为Severless=FAAS BAAS 即函数即服务 (Function as a Service) 后端即服务 (Backend as a Service)
快速搭建WP
第一步：进入Severless控制台并完成授权，点击新建应用，选择应用模板——快速部署一个 Wordpress 框架
第二步：填写应用名，选择环境和地域
应用名称最短2个字符，最长63个字符，只能包含小写字母、数字及分隔符“-”、且必须以小写字母开头，数字或小写字母结尾。应用名称创建后无法修改。
环境分为：部署环境，实现开发、测试和生产环境
目前支持广州，上海，北京三个地域
选择完成后点击完成
第三步：等待部署完成。
部署时可以查看部署日志，部署通常需要90秒。
第四步：配置WordPress
点击右上角的【访问应用】，会打开一个系统自动分配的域名，在此页面完成WordPress的基本配置。
第五步：绑定自定义域名
在资源列表选项卡中找到基础信息栏
输入自己的域名（因为部署在国内，需要使用已备案的域名）
完成后点击保存即可。
