Simplify Kubernetes YAML with Kustomize

[@mediatwinkleTV]

This is actually the best Kustomize tutorial on youtube hands down. Easy example, straight to the point with overlays and patching. Please keep up the great work !

[@vakuljain8649]

Agreed.

[@animeshkumar1606]

Finally a video which explains concepts in depth

[@billqualls6622]

Thank you! This video saved me days of tinkering with Kustomize and weeks of experimentation with yaml file organization.

[@MegaMoses91]

Thank you for keeping us updated with all the devops tools. You’re a talented instructor! Keep it up!

[@funnyandgames1555]

False!!!, he is one of the best instructor

[@DevOpsKey1]

I also agree that he teaches us extraordinary.

[@patricknelson]

4:53 - Yes yes yes, this 100%. I’ve only been working with k8s for a relative short while, but I found myself really over complicating things once I realized how much simpler it was to use Kustomize to accomplish the same thing. It’s all about _simplifying_ and making the code easier to *reason * with. I realized that the little trade offs (e.g. less verbosity) resulted in major downsides in other areas like incorporating too much logic and too many variables, layering of variables (defaults), for loops and worse, the use of parameters to incorporate dynamic values at template generation time _dramatically_ increased the cognitive load required to reason about what was ultimately happening. Once I stumbled upon Kustomize I started to realize a completely new way of thinking about how to solve these problems which resulted in a much simpler solution that may have had _slightly_ more code, but that code wasn’t harder to refactor. Best of all: It was just much easier to understand and I was _much_ more quickly able to add, edit, change things with less resistance.

[@thesobercoder]

This is the best Kustomize tutorial I've seen on KZbin. Period.

[@felipeozoski]

Thank you so much for the great content Marcels !!! We love you man!!

[@jonathancabral4188]

I have a task to update our projects to use Kustomize. I had some difficult do find good sources to learn more about it. Luckly I found this video. It helped me a lot.

[@noo-sho8500]

You're a legend. Thank you for this! This tutorial is so clear and perfectly focused on the topic! The added value of sharing your repo is saving a lot of time and makes it easier to learn. One thing I am missing is the agenda - it would be awesome if you could add timestamps for your video in the description or the video itself, it would make it easier to return to this outstanding tutorial and go through some of the stuff again. Either way, you're the top of the game. Thank you once more for this clear explanation! I subscribed after first few minutes of the video, obviously! Cheers!

[@Akhan4u]

Same thoughts here. I too subscribed in just few starting mins 😎

[@albertopolofernandez3472]

I have not that much interest in devops but you make really great videos, congratz! And ofc this kustomize video is one of the best ever summary of any tech I've ever seen! truly great!

[@mzimmerman1988]

I pay for several kubernetes courses. I have to say, this is far better than any of them. Right blend of practical and theoretical. Thanks!

[@zyomanine]

no water, straight to the point, liked and subscribed. respect💪

[@umermustafa2560]

The way you explain is really concise and directly goes into the brain through the skull ... I love to watch you videos... Keep it up Boss.

[@addmin000]

This video is an awesome hands-on intro to Kustomize for newbies! Thank you for posting it man

[@asdasddas100]

I wish I saw this video before I saw your helm charts video. I'm also a believer in keeping it simple but I already implemented helm into my application

[@kwamedevopsengineer7633]

Thanks!

[@MarcelDempers]

thanks for the support 🙏🏽💪🏽

[@DevOpsDirective]

Great overview Marcel -- Having Kustomize automatically update deployments that consume a ConfigMap when it changes is particularly useful!

[@gemmaatroxxibox5322]

This is exactly what I needed to know. I'm only 2 mins into the video so thanks for the heads up.

[@TheShadow2707]

what happens with old created CM's should they be deleted manually?

[@DaveThomson]

100% agreed, everything uses HELM where I am and it's ridiculous to manage and understand whats going on. Argo and Kustomize are wonderful!

[@SiddharthPant]

Subscribed and liked. Excellent tutorial. Marvellous job. Take my money!

[@DevOpsKey1]

you are one of my best Mentor in DevOps

[@elielberra2867]

Amazing video! Thank you so much for posting all this content on k8s it is really helpful!

[@Ashu6443]

One of the best video on kustomization.. nice and good examples.. thanks 🎩

[@umeshroy7373]

There is some magic in the way you present. Thank You Sir 🙏!

[@niharikanaidu4564]

Crisp and very informative. Thankyou for posting this. Greetings from India

[@cyper0418]

Thanks for your insights, you make me less anxious about not using helm

[@rodrigito78]

Thanks for the fantastic kustomize overview.

[@mihailyurukov5942]

Just wanted to let you know - you are awesome!

[@ab5848]

Very precisely explained!! Thank you

[@Jaabaa_Prime]

Clearly explained and easy to follow. The perfect starter! Thank you! 💯

[@sanjayjitu1]

The best kustomize video i have watched till now.. you are amazing and the way you explains the topics are really cool...

[@cafemike111]

This is some superb content covered with a superb level of clarity! Subscribed!

[@NiteshKumar-do4en]

I was using kustomize from 1 month and a good tool for all my yaml

[@markmcgookin1729]

This was absolutely brilliant buddy, thanks.

[@edidiongetuk7133]

Thanks so much Marcel! I needed a crash course on Kustomize and I got exactly that!

[@OmarKhaled-re4lu]

veryy veryy good explanation, you're professional!

[@gadieichhorn7570]

very nice demo and agree with simplicity and usability

[@ernesto.delaluzmtz]

Thank you so much for this tutorial, you go straight to the point, you are very good and so clear at explaining, I can say this has been one of the best tutorials I have ever seen.

[@sagarajayathilaka]

Thanks a lot. Great Stuff, Short and right onto the point. Every word is valuable and meaningful.

[@JohnMatthew1]

I now understand Kustomize! thank you

[@algorithm1313]

dude you are awesome as hell!!!!! you make my work life easy and awesome

[@stefanschmidbauer6075]

Great job Marcel. It's a lot of fun to watch your videos!

[@oTwOrDsNe]

This is amazingly helpful. Thank you for making this and other concepts simple to get started with!

[@lamle5183]

Thank you very much. Your video is very informative and useful. I'm going to apply Kustomize to the project at work. I have been struggling to find a smooth approach to handle different environments (dev, testing, staging, prod, etc.). The pains include image tag replacing, persistent volume / persistent volume claim. Take PV and PVC for example, I use Docker Kubernetes on Windows, on local dev environment, I cannot specify static PV paths and can only use PVC with automatic storage allocation, but on staging and prod, I must use PV with nodeAffinity. So on. You know... I think this is a great find. Thank you!

[@hasanerken9604]

Very concise and clear explanation...

[@schrapj]

Brilliant! Fast, clear and to the point.

[@ddpxl]

Marcel... you rock!

[@MarcelDempers]

You rock my friend 💪🏽

[@olehigorovich474]

Very comprehensive and engaging tutorial! Thank you!

[@lakshmananganesh2090]

Really nice to learn everything from your video and implemented quickly.

[@Akhan4u]

Awesome tutorial! Great examples!

[@subzeroleaf]

You're doing a great job, bro! Congrats

[@farrukhahmedsid]

Clear and informative video.. Quite a useful thing kustomize is. Thanks Guy!

[@arpanchakraborty9874]

Compact yet highly informative videos!! Thanks a ton. Looking forward to more.I just have one question : What is the difference between patches and patchestrategicmerge?

[@paulsalomon7859]

First things first, thanks a lot for this awesome tutorial. As far as I understood, the base tag is deprecated since v2.1.0., isn't it? Instead, I need to convert base to resources?

[@nixkpro99]

Thanks video you explain different helm and kustomize. I support kustomize

[@nicotarquini]

Thanks Marcel! I have understood perfect. Greetings from Argentina!

[@Shan_niv]

just have one doubt here. If it automatically creates a configmap 18:42 . Will the old configmap resource which was mounted to the pod remains there or will it automatically gets deleted??

[@sandro_j]

Thank you for posting. I always learn something new from your videos!

[@raineyzhang8520]

It is really a helpful video, I've go through it for several times and learnt kustomize, I have one case need your help: I need build the application from Jenkinsfile, and it has some jenkins environment vars need to be passed before apply the kustomize, so in the deployment.yaml, it has the mustache templating, like {{env}}, to be replaced. What is the best way to achieve this? Looking forward to your kindly reply. Thanks a lot

[@raineyzhang8520]

BTW, in our project, we have a jenksin method to replace the content, just it is by single file name. So I can not figure out how to call it with kustomize folder, maybe before the kustomize build.

[@raineyzhang8520]

Oh, with sed can work

[@richardlanglois5183]

Great presentation!

[@atanudebnath9173]

could you please make a video using kustomize and helm charts

[@Shubham__Saroj]

Awesomely Explained.

[@PianoNumberOne]

Thank You for making this Video

[@jamesbotwina8744]

Killer video. Had to watch on .75x

[@ScrolltheNature]

Thanks it was great help !!

[@taufiquerah]

How to generate yaml file for any kubernetes object to see all possible field keys and their structure?

[@MarcelDempers]

I usually copy from existing YAML that I have on hand. But the best place to get all possible fields is the API docs kubernetes.io/docs/reference/kubernetes-api/ There are some UI tools i've seen before, but they are still not very mature enough to recommend.

[@taufiquerah]

@@MarcelDempers this is not I am looking for. Again I have to browse. I want command to get details in clusters server without going to internet.

[@MarcelDempers]

For existing objects in a cluster you can get the output as YAML , example: kubectl get deploy -o yaml

[@OliverRivettCarnac]

Excellent video!! Just wondering how would you use this if your image tags were coming from the CI pipeline and so could not be configured manually in a patch file?

[@震肖]

The music is great

[@tonyjoanes]

Something I'm thinking here is that if you want developers to easily setup their development environment which would be multiple Kubernetes resources from different repositories then Helm would make it easy to install everything they need rather than having to checkout each repo and deploy it (using helm registry)

[@NaveenKumar-ld3rj]

Thanks for the wonderful tutorial. If possible Pls create similar video with Flux CD

[@basickarl]

Hows does one inject variables into k8? That is to say values which cannot be coded into files.

[@supervacuum]

Great video although I would disagree on the copy and paste descriptors thing. It is puzzling how many problems are triggered when that approach is applied at scale.

[@arpanchakraborty9874]

Thank you so much. That is really a great tutorial and easy to understand. 🙂

[@lurhq343]

Always on point! Thanks!

[@sanjayjitu1]

please make videos on AWS (eks, lambda, api gateway, terraform, spinnaker )

[@vishnupradeep1792]

Thank you very much, Marcel.

[@developer-guy]

Love your videos another great topic that you covered 🤛

[@manjunathn6539]

Awesome video As always😎

[@vinaymanchundiya7480]

Thank you for such a great explanation. Questions, Does Kustomize deletes stale configmaps from the cluster ? What are your thoughts on using a tool like "Stakater" for configmap and secret reloads ? Thanks again.

[@MarcelDempers]

Kubernetes does not delete state configmaps. Thanks for sharing, Stakater looks like a very cool utility 💪🏽

[@DevOpsKey1]

Great explained

[@ybonda]

Great tutorials as usual! Please make tutorial on Terraform on AWS (with Terragrunt or without) Thanks!

[@xbw1220]

Key 'bases' is deprecated ,how can I know use like your video?

[@mohamedhabas7391]

Bravo 🙌 🎉 👏 :)

[@조현상-t7x]

Hello. I am a DevOps Engineer in Korea. I am getting a lot of good information from you. Could you please take a video that easily explains how Kubernetes works internally? Thank you for always.

[@stevebrayshaw7228]

Can you use kustomise to alter a base deployment via an override to add in the init container etc for vault integration ? I’m thinking about the use case where a vendor deployment uses basic secrets that I then want to change it yo integrate with hashicorp vault. Great presentation style btw.

[@sasidharallnewp1595]

hi, is it possible to make ingress with variable hosts using kustomization ?

[@nikhilrajan2370]

Does Kustomize work with CRD's

[@PixarBasim]

Thank you so much for this video! :)

[@Rahul_aka_Bazinga]

why do we need it ? Dont mind I have single yaml for all the files and we change by using replace tokens whether in config maps or direct yml in azure devops pipeline and all customization goes into azure devops library variables . I am not sure why to to hardcode everything in files which can be customizable using the devops pipeline .

[@ashwaniahuja]

very well explained

[@DrMicr0b]

great explanation.... thanks Marcel.

[@TheK1t3]

Thank you for the very informative video!

[@anonymoususer6448]

Awesome, condensed and super informative and useful video. Thank you ! Tip: Try slow down on the screen switching.... I'm getting a bit seasick ;-) Super useful video

[@anonymoususer6448]

I apologize if this sounds like nit-picking... I'm merely trying to be helpful :-) aAsimple fix, to correct any pre-recorded talk, could be to not switching the entire view to where you are sitting behind your computer, but leave your bash on the screen, freeze the screen, correct the audio and during that talk just blank the insert with yourself ... This results in a lot less screen swapping which gives our (my) eyes a lot more time to adjust and assimilate the contents. Also many of the Zooms are unnecessary...it is extra work for you and it makes me having stop the video everytime for a second or 2 just to be able to assimilate the contents (may my eyes are slow to adjust)

[@amine250]

Hi Marcel, at 17:00 you said that the pod that's still running will not pick up the change of the configmap but that's false. If the configmap is mounted as a volume, it will be changed without needing to recreate the pod. Then, it's up to the application inside the pod to pick up the change or not.

[@OliverRivettCarnac]

Maybe, however sometimes the application running in the container does not updates to the configuration on the fly. Some applications may only read their configuration on startup and from then onwards it is static, regardless if the underlying config files changed. In these scenarios the application would need to be restarted which is equivalent to restarting or recreating a pod.

[@amine250]

@@OliverRivettCarnac yes

[@vinitshah9984]

Thank you for great explanation. You're an amazing instructor and awesome examples. Can you please make a video on tekton pipeline.

[@Manuel-wg7lq]

thanks for sharing! :)

[@FelipeRodrigues-lj1el]

Thank you!

[@twrobel]

Great tutorials! What do you use for screen recording in VCS? How do you selectively focus on parts of the screen?

[@MarcelDempers]

Thanks for the kind words 💪🏽OBS is great for screen recording and any good video editing software will allow you to zoom to parts of the footage using keyframes 🤓

[@twrobel]

@@MarcelDempers Thank you!

[@mohamedhabas7391]

Fabulous ;)

[@abhinavtripathi970]

can you make video on codefresh ci/cd

[@my-curiosity]

thanks! great tutorial