Heroku to GCP Migration

This repo contains set of scripts and instructions to systematically migrate a Django application to Google Cloud. The migration of database (PostgreSQL) and cache are the main focus.

Source application hosted on Heroku

Django application with Celery for async tasks

• Web type dyno for frontend
• Worker dyno for celery beat and workers
• CloudAMQP for RabbitMQ broker required by Celery
• Memcachier - used for distributed caching
• Heroku Postgres

Objectives

• Minimum DevOps requirement on the GCP just like Heroku
• Low downtime migration of the production infra

Migration guides

• Database (PostgreSQL)
• Django application server
• Async and periodic tasks
• Cache

References

• Running Django app on Cloud Run
• Londiste documentation