I just started a new job and inherited a Kubernetes cluster, but I don't know much about it. The person who set it up is leaving, and I need to learn how to manage this cluster and understand how it all works. What should I focus on as I start learning about Kubernetes?
3 Answers
Firstly, identify who has access to the cluster and how it's configured. It's also good to know what's currently running on it and any Custom Resource Definitions (CRDs) that are installed. If you can, have a chat with the previous owner for a brief overview of how everything operates. Get familiar with the infrastructure as it’s usually tied to other resources.
I've found the KodeKloud courses for CKAD/CKA on Udemy to be super helpful. They give a structured insight into Kubernetes, and usually, there's a discount available. Combine that with local experiments on tools like kind or minikube, and you should be set! It's a steep learning curve, but worth it if you put in the effort.
Hands-on experience is key! Start by setting up your own version of the cluster, possibly using k3s or kind. Make sure you document the setup process and how to back it up—it's crucial for when things go wrong. I suggest letting your manager know if you feel unprepared; being upfront about it can help you get the support you need.
Totally agree! The practical experience reinforces what you learn in those courses.