AWS Lambda 本地调试Debug

项目代码: https://github.com/meadlai/aws-lambda-debug/tree/master/vscode

由于Eclipse没有AWS toolkit, 于是使用PyCharm进行开发,发现只有PRO的付费版本才能有调试功能,并且使用专用调试器pydevd_pycharm. 比较麻烦的是必须配合sftp进行调试,这对应win本地调试并不友好,遂放弃.https://www.jetbrains.com/help/pycharm/remote-debugging-with-product.html#summary

然后换了VSCode

环境准备

https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-getting-started.html

主要是安装Python3, AWS CLI 2, AWS SAM, Docker desktop

配置账号

https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-getting-started-set-up-credentials.html

    aws configure

    aws configure list

VSCode 开发环境

主要参考文章: https://github.com/aws/aws-toolkit-vscode/blob/master/docs/debugging-python-lambda-functions.md

cd${project_root}

初始化虚拟环境

python3 -m venv ./.venv

激活虚拟环境

../.venv/bin/activate

其中的requirements.txt,添加了最新版本的ptvsd, 发现ptvsd==4.2.4其实是有问题的,最新版本是4.3.2

安装依赖

  python3 -m pip install -r ${workspace}/vscode/hello_world/requirements.txt

  python3 -m pip install -r /Users/dev_local/Documents/Project/aws/vscode/vscode/hello_world/requirements.txt

编译项目,每次修改代码,都要手动执行编译,不然断点位置不对

    sam build

启动项目,开启debug端口5678,等待连接

samlocalinvoke -e events/event.json HelloWorldFunction -d 5678

按F5进行编译,代码将停止在断点位置.

/.vscode/launch.json 里面的路径映射貌似不对,会报以下错误: pydev debugger: unable to find translation for: "/Users/dev_local/Documents/Project/aws/vscode/vscode/hello_world/app.py" in ["/Users/dev_local/Documents/Project/aws/vscode/hello_world/build"] (please revise your path mappings).

改成下面的路径映射, 断点可以使用

            "pathMappings": [

                {

                    "localRoot": "${workspaceFolder}/vscode/hello_world",

                    "remoteRoot": "/var/task"

                }

            ]