How to build a Kubernetes Webhook | Admission controllers

Checkout the source code below 👇🏽 and follow along 🤓

Also if you want to support the channel further, become a member 😎

Checkout "That DevOps Community" too

Source Code 🧐
--------------------------------------------------------------

Introduction to Go Programming
--------------------------------------------------------------

If you are new to Kubernetes, check out my getting started playlist on Kubernetes below :)

Kubernetes Guide for Beginners:
---------------------------------------------------

Kubernetes Monitoring Guide:
-----------------------------------------------

Kubernetes Secret Management Guide:
--------------------------------------------------------------

Like and Subscribe for more :)

Follow me on socials!

Music:

Timestamps:
00:00 Introduction
00:30 What are admission controllers
01:57 Documentation
02:12 The Agenda
02:43 The Source Code
03:04 Creating a cluster
03:37 Create TLS certificate
08:51 The Webhook configuration
11:50 Writing the code
15:27 Accessing Kubernetes from code
17:43 Authenticating with Kubernetes
20:50 Kubernetes client-go
22:50 Basic code to list pods
24:44 Mutating Endpoint
27:17 Deploying to kubernetes
30:58 Trying the mutation endpoint
32:05 Admission Reviews and response
39:24 Successful mutation

[KenVeski]

Most watchers of this video already know what "-v" does in a docker command. But even if there is only one who doesn't, the explanation pays off.
So I seriously love the fact that you go over every single command, explaining what and why is going on. That is exceptional level education right here.

[arpitagarwal]

Awesome man, your voice is so smooth. Top quality content, everything to the point, zero wastage.

[Matt-SarcasMo]

I don't know how to explain it but your videos are like hypnosis :D, we follow from start to finish and understand everything !

[manidharanupoju]

Best content for Kubernetes out there! I actually used these videos to implement a cluster in my organisation. You are my hero!

[nickmills]

I realize this is a bit old now, but serious props, nice work.

[amirsela]

My god. I just googled for admission controller hello world and got to this channel. Wow. So clear, so structured. This guy knows how to teach. And this is from a guy who has been teaching Linux for about 20 years
How can I pay for this content?

[VictorYami]

This video helped me a lot in understanding AdmissionControllers. The way you explain things is brilliant!

[frauseo]

Dude, you are my hero! I do really enjoy watching your videos. I'm tring to get into the DevOps world and your videos are just amazing! Thank you for all the knoledge you share with us!

[gurpreetsingh-vede]

Loved the way you structured the creation of admission webhook, step by step ... just by following along the video helped me understand the concept and literally not spending lots of time on fixing unwanted issue due to setup as in other blogs... Thank you and i am your new Fan :)

[stal]

Thanks a lot for this excellent video. I am currently facing the task to develop an admission controller, Your video is very helpful.

[kenna]

The quality of this video is top notch! Thank you very much for helping us learning and understanding these concpets with practical examples. Love these videos!!!

[colunizator]

This content is amazing. I am sure it took a long time to put it all together
thank you

[mrcharm]

full marks for professionalism and quality

[joross]

Thanks for the great k8s content Marcel.

[montymontemayor]

Kudos to you sir! Very clear instructions and easy to follow, everything is well explained as well!
Thank you for putting this together.

[hariharanayappane]

Fantastic content, some day this channel will be the gold standard for k8s development.

[transmitify]

Awesome run-through of admission controllers - thank you - keep up the great work

[rohky]

just plain awesome !! so much detailed explaination ever seen in k8s tutorials

[felipeozoski]

Marcels is the man!!! Thank you so much!

[IwanSatria]

Thank you for making this video. It's really helpful.

If I may give some feedback, I'd suggest not to use too many cut-edits. A few seconds gap in between sentence can actually be helpful to your audiences as it lets your sentences sink in before processing the next ones. It would also feel more natural that way. At least for me. I think the gaps in between should be cut shorter only if they're too long in between.

Other than that, it's a very nice tutorial. Thanks again!