Taking Python Serverless: Using Zappa to Deploy Webapps Without Infrastructure

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@maltzj Taking Python Serverless: Using Zappa to Deploy Webapps Without Infrastructure Jonathan Maltz @maltzj 11-13-19 AUTHOR DATE

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@maltzj @maltzj I just wrote my python webapp!

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@maltzj @maltzj

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@maltzj @maltzj Build a .whl file

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@maltzj @maltzj Build a .whl file Deploy to an EC2 instance

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@maltzj @maltzj Build a .whl file Deploy to an EC2 instance Gunicorn

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@maltzj @maltzj Build a .whl file Deploy to an EC2 instance Gunicorn nginx

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@maltzj @maltzj

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@maltzj @maltzj Add your python code Gunicorn nginx

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@maltzj @maltzj nginx

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@maltzj @maltzj

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@maltzj @maltzj

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@maltzj @maltzj Lambda's Promise: Give me a zip ﬁle within some constraints, and I'll just run that code for you

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@maltzj @maltzj How can it talk to the world?

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@maltzj @maltzj

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@maltzj @maltzj API Gateway's Promise: I'll manage all your RESTful APIs in front of AWS services

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@maltzj @maltzj

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@maltzj @maltzj Serverless Frameworks!

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@maltzj @maltzj Serverless Frameworks: Tools that let you stitch together your serverless code and provision the necessary cloud resources.

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@maltzj ● Zappa Serverless Frameworks

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@maltzj ● Zappa ● Serverless Serverless Frameworks

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@maltzj ● Zappa ● Serverless ● AWS SAM Serverless Frameworks

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@maltzj ● Zappa ● Serverless ● AWS SAM ● Chalice Serverless Frameworks

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@maltzj ● Zappa ● Serverless ● AWS SAM ● Chalice Serverless Frameworks

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@maltzj @maltzj

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@maltzj @maltzj WSGI

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@maltzj @maltzj Application Server

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@maltzj @maltzj Application Server (Things that deal with raw HTTP)

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@maltzj @maltzj Application (Frameworks that use parsed HTTP) Server (Things that deal with raw HTTP)

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@maltzj @maltzj Application (Frameworks that use parsed HTTP) Server (Things that deal with raw HTTP) callable(environ, start_response)

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@maltzj @maltzj Application (Frameworks that use parsed HTTP) Server (Things that deal with raw HTTP) callable(environ, start_response)

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@maltzj @maltzj Application (Frameworks that use parsed HTTP) Server (Things that deal with raw HTTP) callable(environ, start_response)

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@maltzj @maltzj So what?

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@maltzj @maltzj Zappa Handler (Speaks WSGI) Your WSGI App

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@maltzj @maltzj Zappa Handler (Speaks WSGI) Your WSGI App Zappa CLI

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@maltzj @maltzj Zappa Handler (Speaks WSGI) Your WSGI App Zappa CLI Lambda-ready Zip

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@maltzj @maltzj Zappa Handler (Speaks WSGI) Your WSGI App Zappa CLI Lambda-ready Zip AWS

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@maltzj @maltzj Zappa Handler (Speaks WSGI) Your WSGI App Zappa CLI Lambda-ready Zip AWS Opinionated cloud provisioning (via Boto)

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@maltzj @maltzj

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@maltzj @maltzj

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@maltzj ● No servers == rethinking lots of assumptions ○ How do I get to my DB? ○ Where are my logs? ○ Lean on cloud services to mitigate ● Some constraint on what you can build ○ Lambda size limits, application response sizes ○ Many can be worked around Some things to be aware of

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@maltzj How's Zappa Overall? ● Very quick if you will play within its box ○ WSGI webapps, only python ● Maintenance story is not great ● Would suggest evaluating alongside serverless + plugins

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@maltzj @maltzj

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@maltzj ● Zappa: https://github.com/Miserlou/Zappa ● Serverless: https://serverless.com/ ● AWS SAM: https://aws.amazon.com/serverless/sam/ ● Chalice - https://github.com/aws/chalice ● PEP 333 - https://www.python.org/dev/peps/pep-0333/ ● AWS Lambda Limitations - https://docs.aws.amazon.com/lambda/latest/dg/limits.html ● Serverless Conf NYC: https://acloud.guru/series/serverlessconf-nyc-2019 ● Google Cloud Run: https://cloud.google.com/run/ ● AWS Fargate: https://aws.amazon.com/fargate/ Resources

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@maltzj @maltzj https://boards.greenhouse.io/nuna/