Zero-Downtime Deployment Pipelines with Docker & AWS

# Zero-Downtime CI/CD Pipelines Deploying code updates without disrupting active user sessions requires automated CI/CD pipelines. ## Blue-Green Deployment Strategy: 1. **Blue Environment**: Active production traffic handles live requests. 2. **Green Environment**: Deploy new code build, execute automated integration tests. 3. **Switch Traffic**: Instantly update load balancer target group to Green in < 1 second.