ecs-blue-green-deploy

Version updated for https://github.com/chuka2003/aws-ecs-blue-green to version 1.0.0.

  • This action is used across all versions by ? repositories.

Go to the GitHub Marketplace to find the latest changes.

Release notes

🌟 ecs-blue-green-deploy — v1.0.0 Release Notes

🚀 Overview

This is the first official release of ecs-blue-green-deploy, a GitHub Action for performing zero-downtime blue-green deployments to Amazon ECS behind an Application Load Balancer (ALB).
It updates your ECS task definition, deploys the new revision, waits for stabilization, and performs safe, progressive, weighted traffic shifting from BLUE → GREEN.

No CodeDeploy. No complex pipelines. Pure AWS native APIs.

✨ Features Included in v1.0.0

🔧 Task Definition Management

  • Automatically generates a new task definition revision.
  • Optional image override (image + container-name).
  • Preserves all roles, compatibilities, volumes, and container config.

🚢 ECS Deployment

  • Updates the ECS service with the new task definition.
  • Waits for service stabilization using ecs wait services-stable.

🔄 Blue-Green Traffic Shifting

  • Uses ALB weighted target groups to shift traffic safely and gradually.
  • Configurable shift steps (shift-steps) and interval (shift-interval-seconds).
  • Moves from 100% BLUE → 100% GREEN with no downtime.

☁️ AWS Native Integration

  • Uses AWS CLI + jq (simple, predictable, fully transparent).
  • No reliance on CodeDeploy or external orchestrators.

🧪 Included CI Pipeline

  • Shellcheck linting
  • Bash syntax validation
  • Composite Action dry-run testing
  • Mocked AWS CLI + jq for safe execution in CI

📁 Repo Enhancements

  • Complete README with architecture diagrams, examples, and usage.
  • MIT License (or alternative as desired).
  • GitHub Actions CI workflow.
  • Versioned CHANGELOG introduced.
  • Marketplace-ready formatting and badges.

🏷️ Breaking Changes

None — this is the first stable release.

🎯 Next Planned Features

  • Automatic detection of BLUE/GREEN target groups
  • Rollback triggers
  • Dry-run validation mode
  • Extended ALB/target-group validation