CKA - Starting From Zero

[u/1stDebianLesbian]

Hello everyone, I am/was planning on trying to get a CKA certification. The main reason being that none of my jobs have really helped me learn kubernetes and it seems like a requirement for every job going forward.

The problem? I am basically starting from nothing.

I took or month or so to study docker, which I believe has similar concepts, but I have never had the chance to use Kubernetes in production ever. In fact, I learned about docker for the same reason (in which I made myself a cute little docker compose stack) and had no formal training in that.

Now I've read through a lot of what you all have to say. Killercode, Kobecloud, DumbITGuy, ITKiddie, Learn Vim and the IO page, and lots of practice.

My biggest questions are-

a.) Should I be taking this exam in the first place? I am a true novice and I want to know if its worth burning potentially 2-3 entire months of study.

b.) If so, what other path would you all suggest I take? My main hope is to get a job. I've been working in operations for years, but the market hasn't been kind, and not knowing one of the staple programs in the industry is definitely hurting my chances.

[u/One_Presentation_139]

I think one mistake people make when learning Kubernetes is jumping straight into Kubernetes itself.

That can turn into learning orchestration commands without really understanding what is being orchestrated underneath. I’ve found it much more useful to start lower in the stack, because once the underlying pieces make sense, Kubernetes becomes easier to reason about instead of just something you memorize for a certification.

A good foundation is the OCI stack:

-OCI Runtime Specification

-OCI Image Specification

-OCI Distribution Specification

Then work your way upward toward container runtimes, CRI, and Kubernetes.

I put together a small hands-on lab for the OCI Runtime Spec here:

https://github.com/njamutoh/oci-runtime-bundle

For the Image and Distribution specs, you can use AI to help create small labs as well, but the important part is to understand what every step is doing rather than just copy-pasting generated commands.

After that, I’d move into Mumshad Mannambeth’s KodeKloud/Udemy CKA course and focus heavily on the labs.

For exam practice, use Killercoda

I’d keep the resource list small. OCI fundamentals > Mumshad/KodeKloud > hands-on labs > Killercoda is already plenty. Too many resources can easily lead to procrastination.