How to automate testing, build multi-stage container images, and deploy zero-downtime releases.
Modern software engineering demands automated, reproducible release pipelines that eliminate human error.
### Multi-Stage Docker Builds
Reduce production image sizes from 1.2GB to under 80MB by compiling dependencies in an initial builder stage and copying only production binaries into a minimal Alpine runtime image.
### Blue-Green Zero-Downtime Deployments
By orchestrating parallel 'Blue' (live) and 'Green' (staging) container environments behind a reverse proxy (Nginx / Traefik / AWS ALB), traffic is cut over only after health check probes confirm 100% readiness.
