renatonitta/heroku-gcp-migration

Step by step guide to migrate production database and other services from Heroku to Google Cloud

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