🐳AWS ECS Fargate GitLab CI

OVERVIEW

End-to-end automation for deploying containerized workloads to AWS ECS Fargate using GitLab CI/CD with blue/green deployments via AWS CodeDeploy, ECR image scanning, and Terraform-managed infrastructure.

ARCHITECTURE

graph LR
  GIT[GitLab] --> CI[CI Pipeline]
  CI --> ECR[ECR Build & Scan]
  ECR --> TF[Terraform Apply]
  TF --> ECS[ECS Service Update]
  ECS --> CD[CodeDeploy B/G]
  CD --> ALB[ALB Traffic Shift]
  ALB --> FARGATE[Fargate Tasks]

💡 Render with mermaid.live for interactive diagram

KEY HIGHLIGHTS

• GitLab CI multi-stage: build → scan → plan → deploy
• Blue/green deployment with automatic rollback on health check failure
• ECR vulnerability scanning with blocking policy on CRITICAL CVEs
• CloudWatch Container Insights for task-level metrics
• Auto Scaling based on CPU, memory, and custom CloudWatch metrics