K8s

Last November, I scheduled my CKA exam, but guess what? I kept putting it off for months. Every time I thought about studying Kubernetes, it felt like I was facing an enormous mountain I wasn’t ready to climb. Life got busy, I lost motivation, and the exam remained on hold. In July, I bought the KodeKloud CKA course, thinking it would push me to start studying. I studied a little, then stopped, and this cycle went on for weeks. Kubernetes seemed too big and complex to handle, and I didn’t know where to begin. And then, life happened—my father was hospitalized, and I had even less drive to study. ...

I remember the first time I encountered YAML—it was during a seemingly regular workday when a Kubernetes task landed on my desk. I had been managing infrastructure the traditional way for years, but suddenly, here was this new ecosystem that used a format I hadn’t seen before: YAML. It was frustrating at first. The simple indentation of a line could break everything, and I was far too comfortable with JSON and XML. But as Kubernetes became indispensable, and Ansible, Docker Compose, and other tools followed suit, it became clear that YAML wasn’t just a passing trend—it was the new standard. ...

Welcome to our exploration of Kubernetes architecture! Kubernetes, often abbreviated as K8s, is a powerful tool designed to manage containerized applications in a scalable and automated fashion. This blog post aims to provide a high-level understanding of Kubernetes architecture using an analogy of ships, which simplifies the complex interplay between its components. Special thanks to KodeKloud for their insightful lecture, which inspired this overview. The Kubernetes Cluster: Ships at Sea At its core, a Kubernetes cluster comprises two types of nodes: worker nodes and master nodes. To understand their roles, let’s imagine a fleet of ships: ...