How to prepare well for official Kubernetes certifications (CKA, CKAD, CKS)

Hello

The annual Kubernetes standard (trend) configuration is back! 🎉🎉🎉

The configuration is as follows, and the selection background and product description and original PDF are included in each path.

If you're thinking about what to study after learning the basics of Kubernetes, I strongly recommend that you start with a product related to your current foundational knowledge 🚀 from the following products!!!

Especially this year, there have been many changes in observability and data pipeline areas

You can focus on that part.

(Changes to Headlamp and Nginx Ingress are also important modifications.)

Description: https://github.com/sysnet4admin/_Book_k8sInfra/blob/main/docs/k8s-stnd-arch/2026/README.md

PDF: https://github.com/sysnet4admin/_Book_k8sInfra/blob/main/docs/k8s-stnd-arch/2026/2026-k8s-stnd-arch.pdf

Thank you.

Sincerely, Jo Hoon.

Hello

The Cyber Week period, which we discussed last time as the lowest discount period of the year, has been decided!!!

From December 1st to 9th, and it's based on North American time....

I think it might be from the afternoon of December 1st

On December 2nd, you should definitely be able to receive a 60% discount.

Therefore, if you are currently considering purchasing a certification exam voucher, please wait a little over a week

I recommend registering after that!!!

It felt bland with just text... so I'm attaching promotional video captures and links;;; but honestly, it doesn't have much significance; (;;;)

[Figure 1] From the promotional video (Link)

I'll come back to see you again with more good content.

Thank you.

Best regards, Johoon.

Hello

I'm delivering the news about being selected as a KubeCon NA speaker, and the part I mentioned about hoping for news and benefits related to "artificial intelligence" has finally been organized, so I'm making this announcement to everyone.

The benefits are quite good, so I'm sending it to you including especially Ansible and all the certification courses.

To summarize this content briefly

Claude Code Book = -23,400 won

Inflearn Reading Challenge = -9,900 won

Gilbut Points = +20,000 points

For just 13,300won, you can purchase the book (and even cheaper with additional discounts)

Also, they provide 4-week management like a study group and weekly Q&A sessions (answered by the author), so it seems pretty good.

There's a live seminar at the end, and this is also taught directly by the author, so it seems pretty good!

The reason for urgently sending emails in the evening is...

I don't know why, but there's a 100-person limit, and since it's also posted on Inflearn's main page, I don't think we did any promotion...

8 people have already registered? (While writing this, +1 more added)

Hmm, I'd like to explain a few more things...

Artificial intelligence? Similar to ChatGPT. It doesn't seem particularly helpful to me? You might think that, and

You might misunderstand this as being optional, but

Looking at the books I've written so far, I have a pretty good perspective on technology.

• Python > Currently competing for 1st or 2nd place among programming languages

• Ansible > Chef, Puppet, etc. have almost disappeared, and everything except Ansible has vanished

• Kubernetes > These days, this seems to be a basic requirement wherever you apply. I personally think this is at the level of a Cloud OS.

• Claude Code

  • This is the topic of this book...

  • Actually, I don't think it necessarily has to be Claude's code.

  • However, it's currently the most evolved form, and other Gemini CLIs have quite a few shortcomings.

  • So if you're going to learn, it's best to start with the most decent option.

So, to briefly touch on why this isn't optional,

If you call yourself a developer, there are probably very few people who develop using pure code editors like VIM.

You'll be using various automatic features like many types of auto-completion and automatically showing imported module structures. The keyword "automatic" ultimately connects to productivity. This leads to cost reduction and enables you to do much more.

Technologies that ride such trends really don't go backward.

(The cost is really good, you know. Good things never disappear. / no good thing ever dies)

[Image: The Shawshank Redemption]

There are many areas where artificial intelligence shows significant effects, and the current AI agents will see their greatest flourishing in this area, and developers/engineers who don't use this (not necessarily Claude code specifically) will be hard to find in a few years.

Then? Wouldn't it be absolutely beneficial to learn it first right now?

from that perspective, I'm making the recommendation.

Honestly, it doesn't have to be a book or lecture - I just want people I know to succeed (I'm a bit selfish, so I like it when people I know do well)

I hope everyone can get familiar with this as soon as possible and adopt it to do more diverse things.

As I mentioned again, regardless of the direction or method, and even if you have some resistance to artificial intelligence, if you've been a developer/engineer for more than 5 years, I really, really, really hope you understand and apply this approach.

Finally, for your convenience, I'm including links to each online bookstore and reading challenge.

• 교보문고 https://gilbut.co/c/25086027qw

• 예스24   https://gilbut.co/c/25088844qw

• 알라딘   https://gilbut.co/c/25080095MY

I'm ready to translate Korean

• Claude Code Complete Reading Challenge <Link>

Oh right. Since Claude's code is paid, you'd need to pay at least $20 to do the 4-week challenge.

The Gemini CLI is free. (For now) If you're not using all the features but just trying to grasp the concept of AI agents from the book and learn about the format and related content of CLAUDE.md (GEMINI.md), you can give it a try. If the $20 feels a bit burdensome.

This year, I hope everyone will have a year where they actually use AI agents like "Claude Code" that become your real colleagues, not just AI that you simply use, create real use cases, and build portfolios for employment.

Thank you.

Best regards, Jo Hoon.

안녕하세요

2025년 KubeCon NA에 발표자로 선정되었습니다. 2025년 3번째로 선정되었네요 🙂🎉🎉

https://kccncna2025.sched.com/event/27FUp

그리고 Kyverno co-event에도 선정되었습니다.

https://colocatedeventsna2025.sched.com/event/28D1M

혹시라도 행사장에 오신다면 반갑게 인사해 주세요!

그러면 행사 전/후에 발표 영상을 녹화해서 한국어로! 올리도록 하겠습니다.

이 뉴스 외에 요즘 유행하는 인공지능 관련한 소식도 좀 있는데, 혜택이 갈 수 있는 방법이 있을지 알아 보고 있습니다. 잘 조율되서 혜택이 가능 소식으로 전달할 수 있으면 정말 좋겠네요.

항상 감사드립니다.

조훈 드림.

hello

Thanks to everyone who helped me, I was able to successfully complete my presentation at KubeCon China.

Especially this time, I wanted to do it as relaxed as possible so that those who watch it later can feel the on-site atmosphere. (I just called Kyverno maintenance in front, and thanked those who watch it on YouTube later.. 😅 )

Anyway, there isn't much talk about Kubernetes exam discounts these days, so 40% isn't that high, but if you can't wait until the end of the year or need it now, I think it's worth using, so I'm sharing it with you.

To use your 40% discount coupon, please enter code: KCHK25 in the Coupon Code field at checkout.

If I get any more good information, I'll let you all know.

thank you

Cho Hoon Dream.

hello

Following KubeCon China and India in 2024, I have been selected as a speaker for KubeCon Europe! 🙂 🎉 🎉 🎉

https://kccnceu2025.sched.com/event/1txFz

In fact, compared to other KubeCons, NA (North America) and EU (European Union) are so large in scale and submit so many CfPs that it is not easy to get selected. Usually, it is around 13-15 times, and depending on the presentation track, it can be 30 times.

(TMI info: It's called Kubercon, but it actually includes a cloud native cone...so it's called KC+CNC.)

However, thanks to those who have supported and given feedback after reading the book and listening to the lectures, I think I have been able to think a lot and organize my thoughts to achieve this good result. Therefore, I will notify you of this news and offer the maximum discount (25% ⚡ ) that I can apply.

Also, since the event is over and the current content is in English, I will record the content again in Korean and upload it to Start Cuber and Picture Cuber .

Thanks again to everyone, and if anyone is coming to KubeCon EU 2025, we'll see you there.

thank you

Cho Hoon Dream.

hello

Kubernetes exam fees will increase after February 4th .

I know that the cost of the exam is actually related to real life and that everyone is interested in the exam.

(There were a lot of "Likes")

I'll share that part with you.

In fact, the discussion within CNCF began around fall, but it was officially announced on December 19th.

https://training.linuxfoundation.org/blog/new-certification-pricing/

It was decided that only the exams that included the practical part would go up, and with an increase of about 10%, the final cost was set at $445.

There is no official promotion going on right now, so I think it would be better to register by getting a small discount through some sites or wait for a significant discount after the price increase.

I hope this information is helpful to everyone.

thank you

Cho Hoon Dream.

hello

Cyber Week (the biggest discount period of the year) is officially over, but...

(Is there no more chance?)

But there is still a chance, as India's Kubernetes has extended the exam discount separately!

If you missed it, I recommend you pay now and take the exam within a year 🙂

https://training.linuxfoundation.org/kubecon-india-2024/

The deadline is December 20th, so if you need to, register by Friday and make this a great New Year's resolution.

thank you

Cho Hoon Dream.