Day 148: Production Environment — Where Code Stops Being a Project and Becomes a Service

What we’re building today

Yesterday you proved your DevOps pipeline could deploy, roll back, and recover. Today we build the thing that pipeline actually deploys to — a real production environment. By the end of this lesson you’ll have a load balancer routing live traffic across three application servers, SSL certificates encrypting every request, a CDN simulator caching content at the edge, and a monitoring system watching it all breathe. Four systems, one dashboard, zero mock data.

Here’s the high-level shape of what you’re assembling:

• A load balancer that distributes requests using three different algorithms and automatically routes around failures

• An SSL/TLS certificate authority that issues, inspects, and renews real X.509 certificates

• A CDN edge cache simulator with independent regional caches, TTL expiry, and hit/miss accounting

• A production monitoring collector that samples real system metrics and fires threshold-based alerts