How we moved from Heroku to AWS using Docker

Description and use

Migrated a web app from Heroku to AWS using Docker: containerized, deployed to ECS, migrated PostgreSQL to RDS, and set up CI/CD.

Problem

The team needed to migrate a production application from Heroku to AWS while maintaining continuous deployment and scaling capabilities.

Outcome

The migration completed with minimal downtime, improved cost control, and enhanced scalability.

Workflow

• 1. Containerized the application using Docker.
• 2. Set up an Amazon ECS cluster and task definitions.
• 3. Migrated the PostgreSQL database to Amazon RDS.
• 4. Configured CI/CD pipelines to build and push Docker images to Amazon ECR.
• 5. Updated environment variables and secrets in AWS Parameter Store.
• 6. Deployed the new ECS services and verified functionality.
• 7. Decommissioned Heroku resources.

Evidence

We containerized the application using Docker and deployed it to Amazon ECS.

Source