Case Study

Blue-green CI/CD deployments for low-risk production releases

Designed and implemented blue-green deployment workflows to enable safe, predictable production releases. The goal was to reduce deployment risk, allow fast rollback, and improve release confidence without slowing teams down.

AWS CI/CD Blue-Green ECS ALB

Blue-green deployment flow with CI/CD pipeline and load balancer

1) Problem

Application deployments were manual and error-prone.
Services were containerized with Docker but ran without orchestration.
Deployments caused noticeable downtime and rollback was manual.

2) Architecture

Migrated workloads to Amazon ECS for managed container orchestration.
Introduced blue-green deployments using load balancer target groups.
Automated build and deployment flow to eliminate manual release steps.
Enabled controlled traffic switching and fast rollback between versions.

Architecture diagram showing blue and green services behind a load balancer

3) Outcome

Eliminated deployment-related downtime during releases.
Reduced deployment risk with predictable rollouts and instant rollback.
Improved release confidence and reduced operational overhead.

Note: Implementation details generalized for confidentiality.