000 django lambda

Design for running a Django service on AWS Lambda

proposed

Context

AWS Lambda is being encouraged as the runtime for eRegs. Being a Django project, eRegs is typically run as a Python WSGI application.

Decision

https://www.serverless.com/blog/django-serverless-framework-a-match-made-in-heaven

service: example

provider:
  name: aws
  runtime: python3.6

plugins:
  - serverless-wsgi

functions:
  core:
    handler: wsgi_handler.handler
    events:
      - http: ANY /
      - http: ANY {proxy+}
  site:
    handler: wsgi_handler.handler
    events:
      - http: ANY /
      - http: ANY {proxy+}

custom:
  wsgi:
    core: wsgi.application
    site: wsgi.application

• TODO: we need to show that we can do this with the existing programs.

Consequences

Requires wsgi.py files or equivalent for our systems.