ecs-blue-green-deployment

Leverages AWS CodePipeline and CodeBuild to automatically build and deploy container images, as detailed in the README's Build and Deploy stages, reducing manual effort.

Includes a manual review stage in the pipeline, allowing approvers to validate changes before promotion, which minimizes risk in production deployments.

Uses CloudFormation templates to provision all AWS resources (VPC, ALB, ECS services), enabling reproducible and version-controlled infrastructure setup.

Employs a Lambda function to swap Application Load Balancer target groups, shifting traffic between blue and green environments without downtime, as described in the implementation details.