Kubernetes StatefulSet simply explained | Deployment vs StatefulSet

Рет қаралды 224,863

Күн бұрын

StatefulSet Kubernetes | Understand what StatefulSet in Kubernetes is and how it works
Using StatefulSet in practice 🙅🏼‍♀️ ► • Step by Step Applicati...
Kubernetes Operator explained (manager for your stateful application 🚀) ► • Kubernetes Operator si...
In this Kubernetes StatefulSet tutorial, I explain the difference between Deployment and StatefulSet.
I also show you how to deploy databases using StatefulSet component.
Kubernetes StatefulSets are used to deploy specifically stateful applications. In order to understand how StatefulSet works, you first need to understand how database clusters work, as well concepts of Kubernets StatefulSet vs Deployment.
While StatefulSet is used for stateful applications, Deployment component is used to deploy stateless applications. So the question is: what is the difference between Deployment and StatefulSet components?
Pods deployed by Deployment are identical and interchangeable, created in random order with random hashes in their Pod names.
In contrast to that, the Pods deployed by StatefulSet component are NOT identical. They each have their own sticky identity, which they keep between restarts and each can be addressed individually. Thus, they can't be created or deleted at the same time or in any order.
How these identities are created and why its so important, I explain in detail in this video.
▬▬▬▬▬▬ T I M E S T A M P S
0:00 - Intro
0:07 - What is StatefulSet? Difference of stateless and stateful applications
1:57 - Deployment of stateful and stateless applications
3:42 - Deployment vs StatefulSet
5:40 - Pod Identity
6:14 - Scaling database applications: Master and Slave Pods
10:15 - Pod state
11:40 - Pod Identifier
13:17 - 2 Pod endpoints
14:27 - Final note - replicating stateful apps
15:26 - What we covered and what to learn next
-------------------------------------------------------------------------------------------------------
Full Kubernetes and Docker tutorial ► bit.ly/2YGeRp9
DevOps Tools, like Ansible ► bit.ly/2W9UEq6
Complete K8s Application Setup ► • Complete Application D...
Kubernetes Components explained ► • Kubernetes Components ...
For any questions/issues/feedback, please leave me a comment and I will get back to you as soon as possible. Also please let me know what you want to learn about Docker & Kubernetes or another technology.
#kubernetes #kubernetestutorial #devops #techworldwithnana
-------------------------------------------------------------------------------------------------------
▬▬▬▬▬▬ Connect with me 👋 ▬▬▬▬▬▬
Join private Facebook group ► bit.ly/32UVSZP
Don't forget to subscribe ► bit.ly/3mO4jxT
DEV ► bit.ly/3h2fqiO
INSTAGRAM ► bit.ly/2F3LXYJ
TWITTER ► bit.ly/3i54PUB
LINKEDIN ► bit.ly/3hWOLVT
Legal Notice:
Kubernetes and the Kubernetes logo are trademarks or registered trademarks of The Linux Foundation in the United States and/or other countries. The Linux Foundation and other parties may also have trademark rights in other terms used herein. This video is not accredited, certified, affiliated with, nor endorsed by Kubernetes or The Linux Foundation.

Пікірлер: 249

@karthikmohan2133 3 жыл бұрын

Stumbled on to this channel today, never found any better. Thanks a lot creator.

@TechWorldwithNana 3 жыл бұрын

Thank you, I really appreciate your comment!

@vitalieberega3327 2 жыл бұрын

@@TechWorldwithNana ВБЫДВДВД

@ashwanisharma6709 Жыл бұрын

All doubts cleared… you rocked nana😊

@saikrishnavits 3 жыл бұрын

Such an awesome explanation. I, being a devops engineer myself found this very useful. Thanks for a lot of hardwork that you're doing behind these videos to present to audience like me.

@r.c8756 3 жыл бұрын

Jeez, as part of a dev team who’s currently struggling with devops issues cause our affiliate company that’s supposed to host our apps are completely useless and unresponsive of our requests, your vids really make my life better ! Thanks !

@rahulek914 4 жыл бұрын

This whole series covering docker and kubernetes is excellent, precise and easy to understand. Congratulations and thanks for your efforts. You have great teaching abilities. I specifically liked videos that cover practical aspects - for example, application deployment using k8s and docker-compose etc. Keep up your excellent work.

@TechWorldwithNana 4 жыл бұрын

Thank you so much Rahul for your feedback! 🙏 Happy that it was so useful to you!

@rsivakanth 3 жыл бұрын

Just started with one video and can't stop till I watch all of them, crystal clear. Looking forward to many more, Thanks!

@TechWorldwithNana 3 жыл бұрын

Thank you Sivakanth. I hope you won't get tired of supporting the channel. Keep safe and blessed. 😇

@acassioqueirozz 4 жыл бұрын

Congratulations for you job Nana! I've been learning about Kubernetes since few months ago and your channel is one of the best about this topic! I wish you continue growing and creating very good contents to youtube!

@TechWorldwithNana 4 жыл бұрын

Thanks, I'm glad you think so! Do my best to deliver quality content for you 💪🏼

@stephanelenglet3017 2 жыл бұрын

Thank you so much Nana , you're videos are excellent ! All your series on Kubernetes are like this ! You succeed to explain main concepts in a easy way and it's not so easy to do ! 👏👏👏

@ramm0000 4 жыл бұрын

Perfectly explained high level concepts . Can completely now relate to all the connected components and able to visualise entire structure .

@TechWorldwithNana 4 жыл бұрын

Thanks, that's awesome, glad that my video helped you in getting a big picture 👍

@anilkommalapati6248 3 жыл бұрын

So easily explained and with great clarity. You are a GEM 💎and a great inspiration. The animations are something that makes you very different and special. Thanks a lot Mrs.Nana for taking the pain to put those efforts in. Highly appreciated.👏👏👏👌👌👌

@TechWorldwithNana 3 жыл бұрын

Thank you so much Anil 🙂 I'm happy to hear such positive feedback!

@jhonsen9842 2 жыл бұрын

I wish i could have seen this vidios 1 year before. To explain complex thing in a simple way you don't have to Genius . Fantatic and Superb effort.

@MrVineet09 3 жыл бұрын

Thank you very much, finally able to understand what I was looking for..

@shaileshchaskar6093 2 жыл бұрын

Exaclty what I was looking for - very simple and precise explanation.Thanks alot.

@amanuelyohannes7151 Жыл бұрын

Totally impressed with the delivery of concept!!! Thank you!!

@ramkumar-kr6pl 3 жыл бұрын

Hi Nana, I started to follow your videos from 2dys back, all them are crystal clear to understand. Am preparing for an interview now so need detailed video about pod security policy. Cheers !!

@cascossi809 3 жыл бұрын

Simply magistrally explained and with outstanding infography. Thank you very much indeed. Cannot wait to watch the rest of the series. Subscribed!

@TechWorldwithNana 3 жыл бұрын

Thank you Cascossi. Much appreciated. 😇

@TechWorldwithNana 4 жыл бұрын

Kubernetes Operator explained (manager for your stateful application 🚀) ► kzfaq.info/get/bejne/nsdjf82dqZzLZ5s.html Using StatefulSet in practice 🙅🏼‍♀️ ► kzfaq.info/get/bejne/gK2kfc2Q06elYqc.html ▬▬▬▬▬▬ T I M E S T A M P S 0:00 - Intro 0:07 - What is StatefulSet? Difference of stateless and stateful applications 1:57 - Deployment of stateful and stateless applications 3:42 - Deployment vs StatefulSet 5:40 - Pod Identity 6:14 - Scaling database applications: Master and Slave Pods 10:15 - Pod state 11:40 - Pod Identifier 13:17 - 2 Pod endpoints 14:27 - Final note - replicating stateful apps 15:26 - What we covered and what to learn next 👉🏼 For any questions/issues/feedback, please leave me a comment and I will get back to you as soon as possible. 👉🏼 Also please let me know what you want to learn about DevOps. Please don't forget to subscribe and give me a thumbs up if you liked my video 🤓

@vishnuvardhan6643 4 жыл бұрын

Ansible

@ajaye6612 3 жыл бұрын

Thanks TechWorld Team! Amazing explanation, Understood the concepts of the Stateful set after a few months

@TechWorldwithNana 3 жыл бұрын

You're welcome Ajay. Wishing you all the best in your profession. 😇

@ashafir20 3 жыл бұрын

best development /devops youtube channel ever, great content by Nana!

@helsonkumar8173 3 жыл бұрын

Hey..!!! You know what.....You deserve a big applause...!!! U covered almost everything abt Statefulset in this short video in detail..Can't resist watching your next video..Cheers...:)

@TechWorldwithNana 3 жыл бұрын

Thank you so much!! That's so great to hear 😊

@venkateshnaicker7085 Жыл бұрын

Very very neat and simplified explanation! Awesome contents, Nana!

@56YTFGFH4 3 жыл бұрын

Wow. So much work and detailing in explaining things. Thanks for this. Very helpful.

@devanshumishra6430 2 күн бұрын

Watched All Of Urs Videos.Great Explanation. HatsOff.

@ezehemeka7833 4 ай бұрын

I appreciate your efforts in explaining these concepts in your videos. Thanks for everything you do Nana, 1m subs in a bit.

@amitpawar1677 2 жыл бұрын

Thanks for such simple explanation. Great job Nana...

@koorshashirazi2037 3 жыл бұрын

Completely comprehensive and useful. thank you.

@pravataranjandashfse2677 4 жыл бұрын

Such a clear and detailed explanation in so short period of time. Awesome👍

@TechWorldwithNana 4 жыл бұрын

Thanks Pravata, happy you liked my video! :)

@diogofiaminghi442 2 ай бұрын

Thank you very much! You are an excellent teacher!

@krisdoe 4 жыл бұрын

Maybe it is really important to mention that: 1. Know the database (if you are going to deploy database in K8s). Not all works the same way. For example, sharding as concept (found in Elastic) is very important. 2. Know your application requirements. Where is not possible to have stateless application, state-full self-contained application (deployed as StatefulSet) might make sense.

@sabburaj 4 жыл бұрын

As usual, very nice content, Nana! Thank you so much for this excellent video. You have explained it very well.

@TechWorldwithNana 4 жыл бұрын

Thank you 🙏

@leandromuniz6295 3 жыл бұрын

Easy to understand and very detailed information. Thanks!

@vishnuanil7691 2 жыл бұрын

That was a really really nice explanation that I could not even find from the Kube documents. thanks

@tibbydudeza 3 жыл бұрын

Thanks for giving an clear explanation and using slides and not whiteboard scribbles.

@Farrukhw 3 жыл бұрын

Nana, thanks a bunch for such an awesome tutorial/explanation. This has cleared many of my concepts. Before this, I was thinking to have a single Volume for all the Stateful app replicas. Really appreciated your work... :)

@cagonvinon 3 жыл бұрын

Thanks lot to nana. I appreciate and have pleasure to follow all your contents. So if I create a same pv for all replicas what's the inconvenient?

@gganesh9 2 жыл бұрын

u are doing a gr8 job with the presentations. it is a lot of effort to make powerpoints for every video and all the notes. thank you.

@andreaselvers3201 2 жыл бұрын

Thanks for this great overview of StatefulSet.Must interesting was the claim that sateful applications are not perfect for containerised environments. This is a very important information if you start learning containerisation.

@bukowski_ 2 жыл бұрын

You are amazing¡¡ you don't know how much I've learned thanks to you¡¡ You have the ideas super clear and the resources are the best. Thank you so much¡¡

@soulfulman4834 3 жыл бұрын

Mind blowing explanation of each topic which I have learn for K8s... Thanks a lot Nana & love❤️ from India 🇮🇳🇮🇳

@thiagarajlakshmanan2449 2 жыл бұрын

You have answers for my each question, as a video! Thank you...Subscribed!!!

@nagarajdoddi4985 4 жыл бұрын

Thank you for all the videos Nana. Really your videos are much better than any other videos in you tube or even paid ones. Really everytime i wait for your videos when you are going to upload on K8s :) Thanks again for the videos

@TechWorldwithNana 3 жыл бұрын

That's so sweet of you Nagaraj. I try my best to make things clear as possible. I'm happy that you see it that way. Thank you so much. 😇

@ZeusCanonliil 3 жыл бұрын

awesome explanations, thanks for this, I'm learning so much from you 🙏

@rohitvishwakarma2871 2 жыл бұрын

You're the best! Subscribed

@iammrchetan 3 жыл бұрын

Nice Video with good explanation! Keep doing good work, Nana! Loved this!

@sofianeel9680 3 жыл бұрын

Thanks a lot for this video it really helped me to understand the purpose of the Statefulset and I can say that it is a really nice feature that k8s propose. As I started to learn about k8s, it's a good learning step done today after watching this video.

@Andraite 2 жыл бұрын

Very well explained in simple way. Best video.

@bapisahoo9233 3 жыл бұрын

Great Job ! Explained very clearly. Waiting for the next video on StatefulSet configuration file. Thank u..

@TechWorldwithNana 3 жыл бұрын

You're welcome Bapi. 😇

@DeepakGC 3 жыл бұрын

Thank you!! you made it super easy to understand the concept, subscribed :)

@analyticsjassal1720 3 жыл бұрын

Thanks for the efforts. Nicely and crisply explained.

@gv.ramana 4 жыл бұрын

awesome amazing tutorial very detailed explanation. One of the best channel in youtube. your work behind the presentation is simply awesome

@TechWorldwithNana 3 жыл бұрын

Thank you, that's very sweet to say. Much appreciated. 😇

@MrDevo 10 ай бұрын

Thank you for the amazing explanation!

@ayanSaha13291 Жыл бұрын

Excellent video. Thanks for helping us understanding the topic.

@Amit-qv8cp Ай бұрын

Got it, the different between deployment and statefulset. thanks

@jasmineverdant 4 жыл бұрын

Great Job. excellently explained. you're a gem

@TechWorldwithNana 4 жыл бұрын

Thanks a lot!

@na111111 4 жыл бұрын

very helpful. Thank you and keep making these short videos :)

@TechWorldwithNana 4 жыл бұрын

Hi Raghu, I will :)

@akshayhiremath4584 3 жыл бұрын

Good overview use case of StatefulSets ! 👍🏽

@prateekdwivedi2911 4 жыл бұрын

Thanks a ton .... These videos are super helpful... Please keep on making videos..

@TechWorldwithNana 4 жыл бұрын

Thanks, will keep creating quality videos 💪🏼🤗

@BharatSingh-hf1yt 2 жыл бұрын

best channel for kubernetes thanks

@bzqr2k 4 жыл бұрын

Hi Nana! Great topic and explanation! Thank Youuuu!

@TechWorldwithNana 4 жыл бұрын

You're welcome Mauricio, glad you liked it :)

@user-xb5dh6yk5g 8 ай бұрын

very comprehensive video and great slides

@2006akkgmail 4 жыл бұрын

Very well explained. Thank you.

@TechWorldwithNana 3 жыл бұрын

You're welcome. Glad you liked it. 😇

@keerthisumanth8106 4 жыл бұрын

Brilliant and just wonderful waiting for next video

@TechWorldwithNana 4 жыл бұрын

Thanks a lot! Next video coming soon :)

@JeffSmathers 3 жыл бұрын

I strongly agree with that so many others have said. You have created an excellent series on Kubernetes. Thank you very much. Do have plans to add a video about DaemonSet?

@dharmangroy9049 2 жыл бұрын

Hello Mam, A very well-explained concept for stateful sets. The most important part comes at the end that, the containerization platform is not suitable for stateful apps. Kudos to your explanation power. Keep posting such videos. 👍

@babug6070 3 жыл бұрын

Here, I have learned a lot of things for Kubernetes. Thanks for doing these tutorials. Can you please make a video for MySQL Master and Slave Concept?.

@jhonnySonnny 3 жыл бұрын

Wow thanks for sharing such a great video here!!!

@nalcow Жыл бұрын

excellent Lectures, Very useful ! thank you

@AmolGautam 2 жыл бұрын

Thank you. This is really helpful

@palagirinagarjunareddy725 3 жыл бұрын

Very clear nd nicely explained.. thanks for your efforts🙏

@chiragprajapati9316 2 жыл бұрын

awsome video so many things learning from this.

@thomash.8297 4 жыл бұрын

Thanks, perfect explained.

@TechWorldwithNana 4 жыл бұрын

Thank you Tom, glad you liked my way of explaining!

@rbascu84 3 жыл бұрын

as always, very good explicacoines. Thank you

@Sami-bc9iv 3 жыл бұрын

Good job!!!. Excellent work!!!

@mayureshpatilvlogs 4 жыл бұрын

thanks for such easy explanation. keep it up 👍

@TechWorldwithNana 4 жыл бұрын

Hi Mayuresh, glad my explanation was helpful and easy to follow :)

@midhunk7984 3 жыл бұрын

Nice one ! clear explanation.

@pallavkan 4 жыл бұрын

Superb!!

@surekhadani8487 8 ай бұрын

Just WOW !!

@ajayjeetsharma 3 жыл бұрын

Great work Nana!!

@farrukhahmedsid 3 жыл бұрын

Very well explained.. Thanks

@TechWorldwithNana 3 жыл бұрын

Thank you Farrukh. Please don't forget to subscribe and share. 😇

@abhijitzanak 4 жыл бұрын

nicely explained as always, thanks.

@TechWorldwithNana 4 жыл бұрын

Thanks, glad you think so! :)

@RamanKathpalia 4 жыл бұрын

Wow! Real good content. This channel is indeed underrated.

@TechWorldwithNana 4 жыл бұрын

Thank you so much Raman! 🙏🙂 Hope it will gain more attention soon from youtube, so that it will be suggested to people who are interested in k8s. I would also be thankful for any support by liking and sharing to people, who want to learn about Docker & K8s :)

@RamanKathpalia 4 жыл бұрын

@@TechWorldwithNana Hello Nana, I've been sharing your videos with my team. We find them better than, let's say udemy. Thank you for posting.

@TechWorldwithNana 4 жыл бұрын

@@RamanKathpalia 🙂 thanks

@user-nh1yz5vo4o 3 жыл бұрын

The best kuberneres lecturer

@julionicodantas 6 ай бұрын

You are the best!

@syedibrahim-il2gj 3 жыл бұрын

Very Well Explained

@yogireddy8129 2 жыл бұрын

great explanation many thanks ...

@roshansharma3438 3 жыл бұрын

Hi Nana loved the way you explain. Could you please share us the next video with some real-time examples 🙂

@mohammedsuhailbasha4860 4 жыл бұрын

Amazing explaination. Thank you so much for you. please make and upload videos on how to implement the statefulsets and how it configuration file looks like and how the master and slave methodology for databases was implemented in statefulsets. I have lot of questions in this area only.please make and upload videos on my above requests.

@TechWorldwithNana 4 жыл бұрын

Thanks Mohammed! As mentioned in the video I will make a more practical video about StatefulSets

@himamanikantavaskuri1504 3 жыл бұрын

Great Explanations

@shubhamkumar4672 3 жыл бұрын

Nicely explained, appreciate your efforts :-)

@MohamedTalaat-vx6tw Ай бұрын

Thank u for great efforts

@yassersaied7279 3 жыл бұрын

Amazing as usual

@davetube75 Жыл бұрын

Amazing!

@KresnaPermana 3 жыл бұрын

Wow, You're good at explaining new subscriber added!

@juancamilo1370 3 жыл бұрын

muy claro, muchas gracias!

@TechWorldwithNana 3 жыл бұрын

De nada Juan 😇

@mamun001 2 жыл бұрын

Thank you!!!

@doviche 3 жыл бұрын

I got to say only one word: Great!

@TechWorldwithNana 3 жыл бұрын

Thank you 🙏🙂

@arvindsinha1566 Жыл бұрын

Thanks for explanation

@riyashussain7406 3 жыл бұрын

Very crisp Video, covering lots of information! - One question, If the Master statefulset Pod dies, then who would(i.e. which slave) get the write power to the DB (i.e. persistent volume), and to which DB it shall write?

@ankitgiri6874 2 жыл бұрын

amazing session Thanks

@hesse_df3274 2 ай бұрын

Great video. One point I am messing is about how the service share the request to the pods ?

@albeck4852 2 жыл бұрын

Thanks!

@MrChinook1991 3 жыл бұрын

Fantastic video, thank you! What happens in this scenario: a stateful application continually receives requests to update a database (e.g. MySQL) that is hosted on the k8s cluster as a StatefulSet. What happens in the time between Master pod failure and spinning up a new Master pod? Are the update database requests buffered until a new Master pod is available that can write the updates to the DB?