Kubernetes Namespaces Explained in 15 mins | Kubernetes Tutorial 21

[@TechWorldwithNana]

0:14 - What is a Namespace? 0:32 - 4 Default Namespaces explained 3:00 - Why to use Namespaces? 4 Use Cases 3:03 - Organizing your components 5:00 - Avoid conflicts with other teams 6:00 - Sharing resources 7:22 - Access and Resource Limits 8:53 - Characteristics of Namespaces 11:26 - Create Components in Namespaces 13:54 - Change Active Namespace 👉🏼 For any questions/issues/feedback, please leave me a comment and I will get back to you as soon as possible. Please don't forget to subscribe and give me a thumbs up if you liked my video 😊

[@BiswaRSingh]

Excellent!!!

[@TechWorldwithNana]

@@BiswaRSingh Thanks :)

[@vishnuvardhan6643]

Awesome.. kudos for time lines..... Keep it up...

[@vishnuvardhan6643]

Subscribed...

[@TechWorldwithNana]

@@vishnuvardhan6643 Thanks for subscribing Vishnu :) 👍

[@vakhodonadze267]

you can also use this command to change namespace, `kubectl config set-context --current --namespace=NAMESPACE_NAME `

[@Pro-cheeseburger]

this seems easier

[@romanbobyor]

just before adding the same comment saw this one :)

[@Oxxygen_io]

I have used kubens and kubectx for the last 2 years. Can’t change back.

[@hcompres1]

How to rename at namespace at aks ?

[@Antebios]

This video was perfect. Exactly what I needed to know without getting too deep and not going too high level. Just perfect. And this has given me some new ways to work.

[@TechWorldwithNana]

Thanks Richard, glad to hear! :)

[@r3jk8]

I've been doing this many years while constantly updating my skills. I've learned so much watching your videos. thank you for being such an excellent teacher!!! I love you. ❤ :)

[@thomasmiller2747]

Ive gone through so many of your videos regarding kubernetes, and they have been exceptionally helpful, especially for a young dev ops engineer. Thank you!!

[@SaWi12]

I'm not fluent in English but your pronunciation is clear for me... 👍🏻

[@TechWorldwithNana]

Thanks :)

[@AviadShalom]

I just had a ski accident, my ACL was teared and my MCL partial tear on my left knee... listening to nana talking about namespaces is one of my therapy.

[@StormWolf01]

I just discovered this channel. These are the best (or among the best) kubernetes tutorials. I've been struggling with understanding how some things in k8s work, and these tutorials are helping a lot. Thanks a lot.

[@TechWorldwithNana]

That's great, thanks a lot 🙂 Please subscribe and I would appreciate if you share the videos with people who want to learn K8s :)

[@manideepkumar959]

good explanation, u told not only what is ns, u also told when to create when to have 2 namespaces, but only point missed is," namespace is the space which is allocated across the nodes in a cluster"

[@vignesht9055]

I just discovered this channel and I learned Kubernetes watching your videos.Excellent content Thanks lot Nana👌

[@sajidali-th1dg]

I finally understood namespaces in kubernetes after following this lecture. Thanks

[@TechWorldwithNana]

That's great, happy the video was helpful :)

[@naumanzafar7922]

Its very nice and comprehensive video about namespaces. One use case of namespace is to organize the Objects/Resources. Labels are also used to categorized and organized the Resources/Objects so what is the difference between namespace and labels for that specific use case.

[@MichaelJones-ff9gb]

Your content is excellent. I am traditionally a book and hands on learner, however your videos are clear and concise. Well done!

[@TechWorldwithNana]

Thank you Michael!! :)

[@llorllale]

I'm the same as you and I agree. This is a very good video.

[@TechWorldwithNana]

@@llorllale Thank you George

[@karthikkarthik100]

From india, with respect. Happy Teachers' Day, Nana mam!!

[@rjain0611]

I have recently started watching your video and subscribed to your channel, I must say, your understanding on the subject is remarkable.

[@mostinho7]

Done thanks, took notes in onenote

[@MadhuExplorer]

Now I am clear about Namespaces. Thanks a lot Nana. Can you please create a video on deploying an application in kubernetes cluster using Jenkins pipeline, it will be really helpful.

[@TechWorldwithNana]

Thank you, also for your suggestion!

[@mjnyc88]

Hi Nana, thank you very much for such a great tutorial, this is one of the best tutorial i found on youtube, very easy to understand, explained in simple english, i would really like to join your classes if you do so, please let me know if i can join your class or have one on one session to learn docker and kubernetes. Thanks much

[@Sai2k]

akkaaaa nuv super! masth clear chepinav le

[@anantharamakrishnan19]

Bookmarked your channel. Love the simplicity and the information.

[@mathewkargarzadeh3158]

Great video on namespace in K8. Nice insight of how to use namespace and the possibilities and scenarios it can be used. I would add one more lesson to my folder under the name "Nana" . Kudos to you young Lady for sharing!. Thanks!!. Mat.

[@TechWorldwithNana]

Thanks a lot for your nice feedback Mat!

[@abilashkp2243]

Thats a beautiful and crisp presentation Nana.Thanks a lot.

[@ragook3]

In real-world scenarios, organizations often make a choice between using namespaces or individual AWS accounts when deploying services across different environments such as development (dev), quality assurance (QA), and production (prod). Can you please provide further clarification?

[@armanavasthi]

Once again.. perfect video giving a great understanding using simple words. Could you consider making a video on Spinnaker as well...

[@Admiral.MacDonnell]

Excellent job! Very well presented. Not to mention you post new contents every week. I just subscribed!

[@TechWorldwithNana]

Thank you Simon! This just warms my heart. Please stay safe and well. 🙂

[@rokofromhell9264]

your videos help me a lot to understand the components of k8s! Thanks

[@TechWorldwithNana]

Happy to hear that, thank you :)

[@Amit-qv8cp]

Nice explanation of Namespaces, confiMap only can store the namespaces. In order to create a namespace i think we need file with kind: namespace.??

[@mubashir1976]

Hi Nana. Thank you so much to take the time out to put out such great content!! I am a newbie to K8, coming from networking back ground. I have a question on namespace. Let say we have two name spaces NS1 and NS2 on K8 cluster, NS1 has Pod1, NS2 has POD2. Each pod has a single container. Can Pod1 talk to POD2 by default using POD2 's IP? I know PODS on the name space can talk to all pods on the same name space. But I am not sure if this default behavior is still true if we have PODS in different name spaces Much appreciated!!

[@Shubham__Saroj]

kubens is great time saver ☺️ Thanks

[@shubhamharilalsaroj6380]

Truely awesome

[@joelamks]

Excellent video. I learned how should I use the namespace. Thanks Nana.

[@mycoinscollections]

Hi Nana...really nice explanation..now I'm clear about the namespace.

[@TechWorldwithNana]

That's great :)

[@AbuBakrSadiqi-b7t]

This was a very good and informative video, thank you so much for that high quality contents, Nana! I think I will be here for next few weeks to learn kubernetes with you. 😊

[@Naveenkumar-hs7ec]

Hi Nana - it has been a great experience watching your youtube channel it helped me a lot to know about k8s. could you please make a video related to role-based access?

[@AmarYadav-qq8uu]

If you want to fix your namespace for current terminal session, I think "kubectl config set-context --current --namespace={your_namespace}" would work without installing anything else.

[@101791862]

On kubens (14:15) i.e. setting a default ns, kubectl config se-context --namespace= should work

[@TechWorldwithNana]

Yes, thanks for info Theodor. it works with: "kubectl config set-context {context-name} --namespace={ns-name}"

[@mostinho7]

Good update

[@larsholdgaard4284]

Good vid, but you should look at the risks of using NS. Breaking out of an NS means prowling the entire cluster - I find that to be a very high risk environment

[@manikanthreddy1539]

You are awesome Nana !! Could you please make Tutorial series on "Tekton" & "Jenkins X"

[@TechWorldwithNana]

Very interesting topics, thanks for suggesting it. I will definitely consider it :)

[@sathchithanand]

You are fantastic teacher

[@HLearningFun]

excellent explenation.

[@connect-learn-deliver]

Excellent, adapted an easy scenario to understand things.

[@snehotoshbanerjee1938]

Great video!. I am not able to install kubectx on ubuntu 18. Getting Unable to locate package kubectx.

[@NerdTechShop]

@TechWorld with Nana at 4:55 should you mention logging and mentoring, should that be monitoring?

[@TechWorldwithNana]

Oh yes that was a mistake, I meant monitoring 😄Thanks for pointing that out!

[@satyasid]

Great video on the specific topic for sure, thanks for that.. But moreover its a great demo how tech videos should be done without much fuss & straight to the point and actual problem.. Hats off to that approach.

[@ewsdneax61eaxe10]

wow this is a great video, very simple to my simple brain, thank you so much👍👍👍

[@balakuruva2964]

simple and clear info,thanks Nana

[@TechWorldwithNana]

You're welcome, glad it was helpful for you :)

[@crazyoptimist4540]

Assuming I have some nontrivial resources under `my-namespace`, what if I run this command? `kubectl delete namespace my-namespace` What's going to be the result?

[@crazyoptimist4540]

got the answer here stackoverflow.com/questions/47128586/how-to-delete-all-resources-from-kubernetes-one-time#:~:text=If%20you%20want%20to%20delete,namespace%20flag%20to%20k8s%20commands.

[@pgnitc]

Nice video and you explained it very clearly.

[@amitbist2k2]

Hi Nana, I have a question. If I have 3 worker nodes, can I set affinity of a namespace to particular 2 worker nodes? This requirement came to me to segregate 2 projects with different cost approvals.

[@shaileshchaskar6093]

Amazing and precise info about Kubernetes Namespaces

[@SethArt]

Thanks for another awesome video. Your videos have really helped make things click for me.

[@TechWorldwithNana]

Thanks Seth, glad it's so helpful! :)

[@jaleeshassan3848]

Very beautifully explained Nana🏆

[@christophercatchings162]

Great simplified breakdown. Thanks!

[@pruibiebehastoet1914]

At 2:40 you say it's better to create a namespace with a config file, but the file shown is for a ConfigMap (which uses a namespace) Is that a mistake ?

[@harishdevarapalli1537]

Simple clear and perfect..Thank you..God bless you .

[@TechWorldwithNana]

Thanks Harish!

[@and1play5]

OMFG NOW I FINALLY UNDERSTAND NAMESPACES, THANK UUUUUUUUUU

[@TechWorldwithNana]

I'm glad my video helped in understanding! 🙂

[@sergeygr]

Hi Nana. Thank you for you videos! What do you think about using Rancher? With Rancher you can separate namespaces in different projects.

[@normandy1140]

Thanks, Nana! Great video. Perfect for 5am studies.

[@azizurrehman9525]

GREAT WORK MA'AM...

[@harishkrish14386]

Too awesome videos all are, your explanation is addictive and in a simpler terms making us to understand Kubernates, tqsm 😇 love frm India! 💚 🙂😊

[@sudhanshusrivastva4648]

Can we create ephemeral namespaces ? if namespace A is in use and in high load scenario we can spawn Namespace B with same set of resources using by A

[@codewithfrenchy]

@nana what tool do u use for ur presentation?

[@cloudtech6937]

I love your explanation style also your voice I don't see this type of girl around me

[@bhaskar6705]

You’re really awesome 👏 it’s clear explanation...can it possible help me how to install Kubernetes in my own pc if u have doc or video please share thanks

[@TechWorldwithNana]

Thanks a lot for your feedback. Sure, you can set up Minikube locally pretty easily. Here the link to my Minikube setup video: kzbin.info/www/bejne/e2PTgWSDhMuiack

[@kleia1]

Very clear and concise - bravo!

[@saurabhadivarekar2631]

Ma'am you're truly a god!!!

[@mohammadharrismokhtar6626]

Great content Nina! Thank you so much. Its very helpful.

[@TechWorldwithNana]

I'm glad that this tutorial has helped you Mohammed. 🙂

[@饶泽海]

Really really clear explanation, thanks so much!

[@abhisheksurwariya]

You doing so good work. Thank you

[@TechWorldwithNana]

Thank you :)

[@RaviKumar-ik8qb]

thanks Nana,great video what is a configmap that you mentioned here

[@TechWorldwithNana]

It's an external configuration to your application. I explained it here: kzbin.info/www/bejne/gaPTk2dqjbdjmM0 or in this video kzbin.info/www/bejne/e4KxgJKhgp5pg9E you see how a configmap is used in practice, which also helps in understanding.

[@RaviKumar-ik8qb]

@@TechWorldwithNana Thanks a lot! its very helpful, i am able to connect the dots that i was running in circle from couple of months,Bless you!!

[@TechWorldwithNana]

@@RaviKumar-ik8qb Great! :)

[@matteobarnaba6518]

You are simply great. Congrats and thanks 😊

[@SuperFreelibya]

Thank you. You did a good job.

[@bkmanikanta5070]

Awesome explanation 👍🎉

[@JamesFraley]

Very good information. Thank you

[@stdio9965]

what do u think that is why

[@amlg.alshinawy3298]

where i should place these deploy/configuration yaml files

[@cloudtech6937]

I have doubts on CNI can prefer to me any documents

[@kartheek064]

Wow, wonderful.

[@TechWorldwithNana]

Thank you Kartheek. 🙂

[@click9000]

Nice and clear!! Thanks

[@Dahai110]

very helpful video, thanks!

[@TechWorldwithNana]

You're welcome. 🙂

[@snehasrinivasan2668]

with my minikube installation with hyperkit, I do not see "kubernetes-dashboard" namespace. I only have 4 i.e default kube-node-lease kube-public kube-system what am I missing?

[@MrPiGSkiN85]

Thank you very much for the video 😄😄

[@vera_coder]

Thank you, awesome infomation

[@abirami3651]

How much memory allotted for a namespace

[@jaykumaranbu7173]

Great Video Nana! Thank you!

[@TechWorldwithNana]

Thanks, glad you like it :)

[@anhquocnguyen1578]

Thanks for this awesome video. great explanation about namespace!

[@jackvial5591]

Concise and clear!

[@sandro_j]

Great info, really appreciate the detailed explanations. Thank you for your videos!

[@TechWorldwithNana]

Thanks a lot Sandro, glad the videos are helpful for you!

[@din956]

Your kubernetes videos are awesome, congrats. How did you get so good at using kubernetes? 😁

[@TechWorldwithNana]

Thanks a lot Dorin 😊 I guess through a painful, but very interesting process of setting up complex applications on K8s under time pressure 😀

[@din956]

@@TechWorldwithNana thanks a lot for sharing your knowledge with the world and in such a professional manner. I just got bought you new tutorial on Ucademy, very well made. Congratulations on your dedication and please keep posting videos, it helps a lot of ppl 😁

[@TechWorldwithNana]

@@din956 Wow great to hear such positive feedback 😊 Thank you so much again. Will definitely keep creating more content for you guys! 😁

[@debdutsaha4316]

please I have a problem with that yaml file. Plese make a video on yaml file with more options I am unable to find resource where I find the options for yaml files. So if you can do for us that will be better.

[@SomeInfoSecDude]

this is excellent material. U good.

[@pramodkumar-hi3hn]

Thank you Mam

[@sruthireddy1979]

very nice video... i enjoyed learning this... thank u SIS :)

[@rajeshdheenan]

Could you please explain HA master node concpet in Kubernetes

[@TechWorldwithNana]

Maybe I will do that in some later video, thanks for your suggestion!

[@aswinfamily]

Your videos are awesome...

[@TechWorldwithNana]

Thanks Aswin :D

[@aswinfamily]

@@TechWorldwithNana Can you put a video for Kubernetes Service Mesh ??

[@cracksaadee]

How to use secrets in cross namespace.?

[@steveaustin6608]

Thank you so much nana

[@pavangrandhi]

Thanks a lot Nana

[@ale19678]

What a great resource!!! Thanks a lot

[@ChennaiCineCuts]

Very nice... keep going mam...

[@mehamudhaafreen9118]

How do you delete a namespace?