Deep dives. Real systems. No shortcuts.

Containerizing the Application with Docker In the previous article, I prepared the application for containerization by removing the VM-specific assumptions that were embedded in the code. Two key changes were made: These changes allow configuration to be supplied dynamically through environment variables, which is a core requirement for containerized applications. Read More

Preparing the Application for Containerization In the previous article, I introduced the VM-based 3-tier application that I built and explained how the system works across its three tiers: The architecture itself is solid and does not need to change immediately. However, the deployment model is tightly coupled to virtual machines. Read More

Understanding the Original Architecture Over the years I’ve built several small demo environments to explain infrastructure and cloud concepts to customers and engineers. One of the most useful demos I created was a simple 3-tier application deployed entirely on virtual machines. You can check the application in the earlier blog… Read More