Writing Kubernetes Controllers

In this video, you'll learn how to write a Kubernetes controller.
🆕 Check out a more recent video I did on building Kubernetes controllers (includes link to Github repo): • Deploy and run Embedch...
#kubernetes #kubernetescourse
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[@ThereIsNoRoot]

Thank you for having a much better example and not re-hashing "let's say you were installing a database.…"

[@amirmohg1319]

Loved it. Great job on explaining the distinction between default resources and CRDs, loved the example. Thanks for making this tutorial :)

[@learncloudnative]

Glad you enjoyed it!

[@yathendramca20]

@@learncloudnative Hey thanks for excellent tutorial and my job made easy by looking at the video

[@vonschnappi]

Excellent tutorial. Really consolidates the relationship between CR, CRD and controllers. Thank you.

[@learncloudnative]

Glad it was helpful!

[@muppedaanvesh]

Wowwwww, this video is brilliant.....🙏🏻 Great explanation..👏🏻

[@learncloudnative]

Thank you - glad you liked it!

[@suhdev]

great video mate, super easy to follow.

[@learncloudnative]

thank you!

[@develom_ai]

Excellent tutorial!

[@learncloudnative]

Thank you!

[@rafaykashif2297]

Amazing! Thank you!

[@learncloudnative]

Glad you liked it!

[@techcode_man]

Great content, very detailed yet so easy to understand!! Really appreciated!!

[@learncloudnative]

Glad it was helpful!

[@aquarius6722]

great content, thanks for sharing your knowledge!

[@learncloudnative]

Thank you!

[@yiranli8976]

Love it, great job!

[@learncloudnative]

thank you!

[@akash-tj8ru]

Awesome! very well explained!! Love from INDIA, Keep up the good work 👍

[@learncloudnative]

Thanks a lot!

[@AnselmoBattisti]

Amazing!

[@aayush5474]

This channel is underrated. Good work

[@learncloudnative]

thank you Aayush!

[@richardbalfour]

Awesome tutorial! Really great content.

[@learncloudnative]

Much appreciated!

[@Pirake123]

This is awesome thankyou!!

[@learncloudnative]

thank you!

[@dipi411]

Nice explanation

[@learncloudnative]

thank you!

[@bzz3657]

very good and easy-to-go example for understanding crd and cotrollers👍thanks and loved it.

[@learncloudnative]

thank you!

[@chetankapoor]

Nice video, could you please let us know which version of Kubebuilder and Go you have used for the video? Thanks In advance :) 😀

[@learncloudnative]

Honestly, I don't remember the versions as the video is a couple of years old now :) I did a recent video on building a controller here: kzbin.info/www/bejne/p2PWeGyZh6-bY9k That one has an accompanying Github repo as well that can get you started faster.

[@user-mo6gx1bm3w]

Thank you so much for great content. Could you explain in which case should we use kubebuilder and in which case operator-sdk?

[@learncloudnative]

Thank you! I think both projects are fairly similar; might be best if you go through the FAQ here perhaps: sdk.operatorframework.io/docs/faqs/ - that might give you some perspective on how the two projects differ.

[@ai__76]

Thanks. very pro

[@learncloudnative]

You're welcome!

[@flapa2010]

Hello Peter, can we call the combination of the CRD and the controller an operator?

[@learncloudnative]

Yes, you;'re completely right. An operator is a controller that uses CRDs.

[@krishnadhandas3112]

Thanks for the helpful content. Curious is this code shared anywhere, like github? thanks

[@learncloudnative]

I haven't posted the code for this on purpose because tooling changes so fast, it would probably be out of date :)

[@umanggoyal5482]

Hi , Peter great video, do you have this source code somewhere , like I was following the tutorial , but to create CRD I had to type it all

[@learncloudnative]

Hi, I've added the two CRDs here: github.com/peterj/k8s-shorts-files/tree/main/files/controllers in case that helps. I don't have the full source as majority of the code is auto-generated anyway by the tools.

[@umanggoyal5482]

@@learncloudnative Works for me , Thanks alot 🫡

[@4wdandcoffee]

How to deploy the actual controller to the cluster instead of running it from local?

[@learncloudnative]

Check out the kubebuilder docs, specifically the deploy-image plugin: book.kubebuilder.io/plugins/deploy-image-plugin-v1-alpha.html

[@ai__76]

Could you explain in details how controller works? Why a pod has been created?

[@learncloudnative]

If you're still interested -- I'll be building a k8s controller on a live stream: kzbin.info/www/bejne/p2PWeGyZh6-bY9k

[@danielding-tm9jy]

Plz show your code, i want use it to practice,tkx. Can you give me a github url?

[@learncloudnative]

Hi! I did a more recent video where I am building a K8s controller: kzbin.info/www/bejne/p2PWeGyZh6-bY9k You can find the code from that video here: github.com/peterj/ec-kube

[@danielding-tm9jy]

@@learncloudnative

[@yongsubchung2414]

10:28 what does 'mkd' do? Why suddenly PWD changed to subdirectory pdfcontroller? And, how does go mod init worked? Were there any initialization beforehand? This step was too dramatic.

[@learncloudnative]

mkd is my alias for mkdir and entering that new directory. go mod init is a command to initialize a go module