这里主要使用工具为：AWS Serverless Application Model(sam)

https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/what-is-sam.html

1. 安装sam

1. 安装docker

2. 安装brew

3. 安装sam-cli

   2. 部署一个HelloWorld程序

   执行sam init命令进行项目初始化

    $ sam init
    # 选择模板源
    Which template source would you like to use?
        1 - AWS Quick Start Templates # aws
        2 - Custom Template Location # 自定义
    Choice: 1
    # 选择运行时环境
    Which runtime would you like to use?
        1 - nodejs12.x
        2 - python3.8
        3 - ruby2.5
        4 - go1.x
        5 - java11
        6 - dotnetcore2.1
        7 - nodejs10.x
        8 - nodejs8.10
        9 - nodejs6.10
        10 - python3.7
        11 - python3.6
        12 - python2.7
        13 - java8
        14 - dotnetcore2.0
        15 - dotnetcore1.0
    Runtime: 7
    # 项目名称
    Project name [sam-app]:
    # 是否更新
    Quick start templates may have been updated. Do you want to re-download the latest [Y/n]: Y
   
    AWS quick start application templates:
        1 - Hello World Example
        2 - Quick Start: From Scratch
        3 - Quick Start: Scheduled Events
        4 - Quick Start: S3
        5 - Quick Start: SNS
        6 - Quick Start: SQS
        7 - Quick Start: Web Backend
    Template selection: 1
   
    -----------------------
    Generating application:
    -----------------------
    Name: sam-app
    Runtime: nodejs10.x
    Dependency Manager: npm
    Application Template: hello-world
    Output Directory: .
   
    Next steps can be found in the README file at ./sam-app/README.md

到此， 项目已经生成完毕。
具体目录结构如下：

启动并测试

#启动项目
$ sam local start-api
Mounting HelloWorldFunction at http://127.0.0.1:3000/hello [GET]
    You can now browse to the above endpoints to invoke your functions. You do not need to restart/reload SAM CLI while working on your functions, changes will be reflected instantly/automatically. You only need to restart SAM CLI if you update your AWS SAM template
    2020-04-04 10:12:48  * Running on http://127.0.0.1:3000/ (Press CTRL+C to quit)
# 测试    
$ curl localhost:3000/hello
{"message":"hello world"}

3. 使用IDE进行本地调试

这里我们使用VS Code.
首先使用VS Code 打开刚创建的项目， 如图：

首先我们先在代码中打上断点，

然后再使用如下命令启动项目：

    启动项目：
    $ sam local invoke -e events/event.json --debug-port=5858 HelloWorldFunction
    参数说明：
        -e ：执行函数时，传入的event参数
        --debug-port: 调试端口号
        HelloWorldFunction 即为项目名称， 和yaml中对应。

如下图：

1. debug
   
   输入如下配置：

    {
        "version": "0.2.0",
        "configurations": [
            {
                "name": "Attach to SAM CLI",
                "type": "node",
                "request": "attach",
                "address": "localhost",
                "port": 5858,
                // From the sam init example, it would be "${workspaceRoot}/hello-world"
                "localRoot": "${workspaceRoot}/hello-world",
                "remoteRoot": "/var/task",
                "protocol": "inspector",
                "stopOnEntry": false
            }
        ]
    }

然后点击DEBUG按钮就可以进行调试