In Lecture 11 of the “From Code to Cloud” series, senior .NET developer Farrukh Rehman walks teams through CI and CD fundamentals, spotlighting Jenkins as the engine that automates builds, tests, and production pushes. The session covers pipeline design, Jenkinsfile syntax, and best‑practice patterns that keep code moving from GitHub to Docker images without manual handoffs.

A typical CI cycle starts when a developer pushes code to GitHub; a Jenkins controller triggers a pipeline, builds the .NET app, runs automated tests, and reports failures instantly. The architecture splits responsibilities between a Jenkins controller that schedules jobs and Jenkins agents that execute builds on isolated workers, scaling as teams grow.

Rehman demonstrates a real‑world Jenkinsfile that builds Docker images, cleans dangling layers, and spins up containers on a shared network. The script illustrates best practices like disabling concurrent builds and pruning images to keep the CI environment lean. Upcoming Lecture 12 will shift focus to structured logging with Serilog and the ELK stack for observability.