Kubernetes Services explained | ClusterIP vs NodePort vs LoadBalancer vs Headless Service

[@TechWorldwithNana]

▬▬▬▬▬▬ T I M E S T A M P S ⏰ ▬▬▬▬▬▬ 0:00 - Intro 00:33 - What is a Service in Kubernetes and when we need Kubernetes Service component? 02:10 - ClusterIP Services 06:30 - Service Communication: selectors, labels and ports 09:27 - Service Endpoints 09:59 - Service Communication: port vs targetPort 11:31 - Multi-Port Services 12:58 - Headless Services 18:28 - NodePort Services 21:22 - LoadBalancer Services 23:18 - Wrap Up If you liked the video, please leave a thumbs up and subscribe for more content :)

[@samboy05]

Thanks for the great content, I have an open question - How does the ClusterIp decide which replica to forward the request to? Is it always random? can we change it to a different algorithm?

[@hpibmsun]

I am chinese,UNIX/HA/STORAGE admin in canada, your video is great! your video is better than any training center in china!!

[@jkumar988]

It's really amazing 🙏

[@VR-cr9wn]

Thanks a ton Nana. This video has helped me understand the concept more clearly and clear up confusions I had.

[@VR-cr9wn]

How many service endpoints or objects of each type can be present in a k8s cluster? Can a pod be part of multiple service endpoints?

[@Thedrscooby]

i paid a lot of money to take a course at my local college institute to learn kubernetes, and the instructor didn't teach any of this. I learned a lot from this video than i did taking the course. This video is a gem in kubernetes services. My course instructor spent one class in networking but was dry and boring, nothing in the class about nodeport, cluster ip, load balancer, how pods work, how node works, nothing. This video explained everything in an easy understandable way.

[@MaccaBeats]

this is one of the rare moments (it's the second one for now!) i get to appreciate what a gift having free internet access is. your videos are simply amazing and i can't thank you enough for what you're doing!

[@RiteshAgarwalGwalior]

Nobody can explain Kubernetes better than you! Even a child could understand it. Thanks for sharing such wonderful stuffs.

[@TechWorldwithNana]

Thanks Ritesh, that's a great feedback :)

[@priyankaroy5627]

Agreed...thank you Nana

[@SoumyaDassrd]

I do agree, but child must have @Ritesh age 😄

[@1improvement28]

Bhaisahab ye kuch zyada nahi hogaya?

[@yanglianglu9098]

Exactly!

[@findingMyself.25yearsago]

Nana Nana Nana!!!! This is what my mind yells at me whenever a devops related works assigned to my team. Tried out various blogs & other videos, but the clarity on your video is just awesome! Really love your way of making things simpler to get goood understanding

[@TechWorldwithNana]

That's amazing to hear, thanks for sharing :)

[@marksheard1210]

3 year later and still relevant today. Thank you Nan, you really do spend time elaborating and explaining each part in an easy understandable way.

[@rmagnum2002]

"ClusterIp service type selector will look for pods that matches ALL labels, not just one" - the key to my issues running my app locally in kubernetes with minikube. Thank you!

[@codycurnutte7084]

So I have been working as the lead guy on our team for converting our cloud deployment from Docker Swarm to K8s for a while now. I have taken courses and have even put this stuff into practice but just now finally got a clear understanding of all of the innerworkings of node port vs load balancer. You were able to get me over that hump in 20 mins when a three day course couldnt. Bravo to you.

[@rahulsingh-iq4gd]

How the pod communicate with backend pod ??

[@ApunKaTimeAyega]

@@rahulsingh-iq4gd you mean to say how front end pod communicates with backend pod ? If yes, you can either use a service url that is internal or gateway url (nginx/ application gateway)

[@csvidzz]

I'm not a DevOps enginner, I am a software engineering but passionate about DevOps. I can surely say that your tutorials are the best out there and real life examples about it. Thank you a lot for these! 🙏

[@rbsood]

same here :)

[@ajaymeda1891]

Not sure who are the people who disliked this video but this is the best explanation for Kubernetes Service that you can find - maybe even better than the official documentation.

[@Anonimo_por_escolha]

I'm Brazilian and I'm starting to study Kubernetes because of work, and the only video I could understand was this one even though it was in another language. I'm happy to know that my English is good and that it really pays off to study English for the technology market. And congratulations on the video explaining the ball show!

[@RashmiDuneja]

Me too. All the best.

[@nipunsharma1945]

I am so lucky that I watched your full playlist first, before any other kinds of stuff. You have imprinted the concepts with a wonderful depiction in my mind, forever.

[@TechWorldwithNana]

Great to hear 😊 Thank you for your positive feedback!

[@jacobslusser4232]

I've been semi-exposed to Kubernetes and its concepts for 5+ years now and was still plenty confused on many of the concepts. This video is by far the simplest explanation of these concepts that I've come across. Well done!

[@gopikrishna7779]

For So many days, I had a doubt on Cluster IP. Today I got the clear picture on Cluster IP and Node Port. Thank you Nana You are my new Kubernetes Guru.

[@prajwalgmpp]

Everytime I watch this, I will drop a comment so that it will raise through the algo ranking. Nana deserves it

[@TechWorldwithNana]

Thank you, your support means a lot!

[@dubaifatimaali]

She makes me love my software engineering degree. Her explanatios is clear and precise. Thankyou so making it easier for us.

[@behnamrhp9991]

The most clear and easy to understand content that I found for service. You helped me a lot. Thanks Nana.

[@maheshghagare4940]

this is one best video on kubernetes services, explained in detail

[@2sourcerer]

I've been configuring my cluster following other tutorials and lectures with I having half-baked understanding and some fiddling to get things work. And these clusterPort, nodePort, servicePort, targetPort gibberish have have me Googling all over and are driving me nuts. At nowhere else do I obtain a state of clarify that is the experience I obtained from watching this video. Just wow. This video may not be meant for a complete newbie to try to get things to work, but it does give me an overarching overview and understanding of how things work after I have some basic understanding. It is godsent. Thank you so much Nana.

[@marwanghabin8758]

this video came in time , I was creating a microservice and needed to access from outside but not been public on the internet, I found the sol in your explaination , Thanks a lot Nana for this awsome effort

[@TechWorldwithNana]

That's great, thanks for your comment! :)

[@cemkizil7599]

I don't remember watching a technical video with such joy. It was truly incredible and wonderful. I love it! Please never stop!

[@TechWorldwithNana]

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

[@gauravdas1000]

I had a transparent view of the services now...I worked on these but didnt understand the background of all....the way you described that really make sense

[@TechWorldwithNana]

Thank you 🙏

[@gillianbc]

Nana, k8s services is an area I've really struggled to understand for the last 2 years and now I finally get it - especially with all the various ports. Thank you for such a comprehensive video with such clear pictures and examples.

[@hkmehandiratta]

Excellent tutorail..... I took 50+ pauses to grasp this ocean of knowledge.

[@RashmiDuneja]

Me too ..

[@MichaelPechner]

Thank you. Was setting up ingress as nodeport, but also nginx as node port. This and your ingress video cleared up this mess. Life is good.

[@hareeshhari1601]

You speak what the listener wants! Stunning display of content. Struggling with this concepts from quite a long. Thank You!

[@TechWorldwithNana]

Wow really glad to hear 😊 Thanks for your feedback 🙏

[@naanuswaroop]

Finally a networking tech video that speaks my language!

[@SimonTaylorUK]

Great combination of concise language and clear graphics. Helping me get up the k8s learning curve quickly! Great job.

[@TechWorldwithNana]

Thank you Simon 😊

[@tmiller673]

Thanks for finally making Kubernetes and IaC make sense to me. It's always just been a jumble of 'stuff' and the BIG PICTURE with a drill down really helps.

[@MohsinShafqat-i3u]

This was absolutely fantastic - some of the most complicated concepts explained in a matter of mins.. you are a superstar

[@itshgirish]

Wow, i tried couple of other long videos on the same topic and left confused. I see this vid and i'm like, was it so simple! Well its rather your approach...explanation with graphics is the perfect approach to simply any complex topic. Amazing teacher you are!

[@FaridHaq]

very complex things you explained very easily. thank you so much for your hard work.

[@soodankit]

Thank you for Docker and k8s series. I've shared the same with my friends and my colleagues, all of us have been benefited by your content.

[@nparsona]

This is so much clearer than the majority of the videos that are out there. Excellent job,

[@TechWorldwithNana]

Thank you 😊

[@bouzie8000]

Very excellent video. I usually don't subscribe to tech junkies: I just watch the videos, scramble for the almost indecipherable information and move on. But your information pour is so clear and crisp so I need more. Subscribed!

[@OrHazut]

The best explanation you can find out there for K8s services. Thank you Nana!

[@nishantkansal3719]

Speechless, Awesome, Marvelous, Excellent, Bingo, I don't have words to say for your teaching style. God bless you and keep it up.

[@TheTera110]

I usually don't comment on videos at all, but I feel the need to give thanks to you Nana. Great video with great, precise explanations. You're helping out the community a lot. Keep it up!

[@rajhansshere7094]

Thank you for this explanation… I am network engineer who works on Cisco aci piece but this helps me understand how end to end traffic flows exactly inside cluster till application

[@prajwalgmpp]

(Count 2) Every time I watch this, I will drop a comment so that it will raise through the algo ranking. Nana deserves it

[@maibhiyoutuber3575]

This is best video I have seen for k8 services, please please continue the good work. Big fan of you Nana 🎉

[@mikhailkulak3203]

I have rabbitmq and many time thought how to test mq service from outside of cluster and the same time inside. Every time i used port-forward manually. Now all became clear, thx, Nana:)

[@shuvra03]

I am a great fan of you. Your way of explaining technical stuffs is phenomenal

[@jmmtechnology4539]

Best tutorial I've seen on Kubernetes in a long time - Thanks for the explanation!

[@bencebarboza3826]

very detailed, logical and understandable piece. it is not the first video of yours about Kubernetes which I watched and made everything clear for me

[@-long-]

If teaching is an art, you're an excellent artist

[@junli3714]

Very nice presentation, very clear. I confused with ClusterIP, NodePort and LB for a long time even after reading quite a lot document until I watch this video. Thank you !

[@saikirankappera1878]

Akka(Sister) great stuff. Have been through many websites to understand Networking Service, but this was to the point.Thanks much.

[@viswanathn9156]

Fantastic explaination, God has gifted you with tons of patience -:) to explain slowly and in crisp clear manner. Thank you very much, am sure lot of people like me will benefit with this knowledge.

[@sharma2494]

This is one of the best learning platform for learning Kubernetes 👋👋

[@letsspeakbharath]

Hello from 🇮🇳..... very happy to watch your videos and they very crisp and clear 👍👍👍

[@TechWorldwithNana]

Thanks a lot :)

[@hansjzeller]

Thanks very much, very clear explanation of this complex topic! Your video is much easier to understand than the official documentation!

[@antonalekseyev9651]

This is the most useful video regarding kubernetes services exposure I've found

[@deepdeep4629]

So far the best tuto ever made in this world !! thank you so much for this video, it's so clear and very helpful. Thank you Nana.

[@detach8]

Nana, thank you for this. I had to learn all these in a hurry to get up to speed on a job and your explanations are the clearest I have come across. Keep the videos coming!

[@connectromil]

Beautiful explanation I have seen multiple videos not single explains in such details and provide the clarity

[@Sid-sl3xk]

Wow! Never seen such a crisp and easy explanation of k8s concepts. Thank you so much. Please keep making such excellent videos.

[@MrspujaB]

What a superb explanation Nana !! All your videos have an excellent content and the way you teach makes it very easy to understand. Thanks a ton !! Keep going ....

[@arpanchakraborty9874]

Great insight, best thing was how you linked all the service types with one another. Thanks a lot.

[@TechWorldwithNana]

Happy you liked it! :) Thanks Arpan!

[@MarkusGeiger]

Best Explaination in the topic I have seen including answers to what opens ports and who will it be accessible to. Also historical context - nyce! ;)

[@shacham85]

Your ability to isolate individual ideas, then clearly connect the concept is amazing. Have you ever thought about turning kubernetes concepts into mmo characters, and concepts? As I am learning k8s, there are so many things to know and understand. It would be cool if there were exercises to level up your own character in an open source gamified cluster. Think like DnD, or Gauntlet, where anyone can make a singular exercise of a variable scale. Heal this pod, open a door (ingress), look ahead with commands. It something to think about. Regardless, your videos are absolute gold. I feel like I am able to understand every concept you cover because of how well you are able to draw the lines.

[@brianshanahan3878]

Your videos and explanations are EXCELLENT. I especially like the graphics and animations!!!

[@ankushdeshmukh1679]

I was looking for this topic. Got it. Thanks for posting valuable content. Your videos are so clean and clear. Liked it.

[@TechWorldwithNana]

Thanks a lot Ankush, really happy to hear :)

[@vakariqbal9067]

Nana that''s so awesome .Such an amazing way to explain these concepts and makes it so simple for us to understand.Absolutely love it .Much love and thanks

[@TechWorldwithNana]

That's amazing to hear! Thank you so much for your comment 😊

[@rohitvishwakarma2871]

Again, you're the best DevOps teacher

[@Alestrix76]

I would love to see a video about all the used subnets (Nodes, Pods/Containers, Services, Ingress, LoadBalancer) and how routing and/or access to them works. I constantly get confused about it (especially when I try to understand it on layer 2)

[@piyushdarji7926]

Unbelievable teaching skill and video graphics :)

[@AnantaAkash.Podder]

By far the Best Explanation ever... Thank you Mam...😊

[@VaibhavJain]

One of the best logical explanation. Really appreciate your effort

[@redjohn933]

Great explanation, you've given me a better understanding of k8s services. Keep up the good work.

[@michaeldeng1981]

Highly recommended for beginners to get the k8s knowledge correct in the first place.

[@bzanit]

your way of teaching is fantastic!

[@TechWorldwithNana]

Thanks Bruno, appreciate your feedback :)

[@aaronjameshorne]

Ive just started learning much more on devops and sre and subbed. these videos are great at explaining in my opinion.

[@ayanshaikh4993]

Your explanations are simply AMAZING

[@securecodingdevelopment5023]

Nana you are the best, the effort in the details of your explanations helps me quickly to understand, thank you very much for your dedication.

[@justellvonk2518]

Hey Nana! Thank you so much! Now I finally understand what I am doing. Hehe. I already took one course to Kubernetes but only everything looks logical :)

[@mateomatta2381]

These videos are great!! You explain incredibly. Salutes from Colombia!!

[@vin2629]

So much information in this video. These kind of videos are useful for quick learning. Thanks

[@colinrickels201]

dude this is fantastic! Best description seen so far. Personally I think the headless description was bit long considering its not a hot topic but I skipped little ahead to the service types and the descriptions and animations are great.

[@landung1623]

Nana, your videos are fantastic! I've learned a lot from them!

[@aleksandarfilipov5294]

I rarely comment on videos but this one made me want to compliment you! Excellent work! :)

[@hamidsafe438]

Can't thank you enough, the clarity in this video is superb.

[@amitpawar1677]

Very nice and simple explanation Nana.. Keep posting more videos and help people learn new technologies..

[@madnus.codesen]

One of the best tuts on services. Very well explained. 🙌

[@happylearningtricks]

The visuals you included really helped me grasp the concepts. Seeing the different components and how they relate to each other made it easier to understand how services fit into the larger Kubernetes ecosystem - thank you @Nana

[@akshatagawade4366]

Thanks every much for these videos' its very hard to find something explained so well online.

[@Rk23able]

Thanks Nana, this makes it so crystal clear. Pls help clarify my cute (read as naive or stupid) question: 1. Load balancer sends external request to NodeIP+Port Or Cluster IP+Port? Because, Load balancer dont know which nodes the pods are running, which is only known to ClusterIP+Port. So which comes first among these/ what is sequence of traffic flow? 2. And in this case, When loadbalancer service is created - why is NodePort created automatically. Why do we use it anyways, when Loadbalancer can send directly ClusterIP/Service - which will load balance to all pods with selector/label.

[@vivekgc2051]

Really simple and super... Way you teach will get each and every point easily...please provide Command to get external ip in kubectl

[@umakantmis833]

Excellent, easily explained step by step everything. Fantastic.

[@ArvindKannaberan]

Very well articulated! Learnt a ton by going through this playlist! Thank you!

[@SunilKumar-jf6qq]

Thanks Nana for clear the concept of service in kubernates!!!

[@TheMusicDagger]

The best video so far which I found to understand services, @Nana you are amazing ! Thank you so much !

[@gabisan]

best explaining video I watched so far. congrats!

[@thb9904]

Thank you for creating this video, Nana! It is clear and to the point!

[@ianwalucho5407]

You are the best in this sector. thumbs up

[@levimatheri7682]

You make it so easy to understand! Thank you!

[@techgalary]

Thank for creating such a great content with very simple explanation, I would recommend this video to my colleagues to watch

[@kpravin007]

I was looking for a video with this kind of explanation. Thank you for clearing lot of my doubts.

[@vaishnavihambarde6549]

You are the savior.. Thank you so much for this excellent explanation .

[@MikeStock88]

I'll be recommending my team visit this channel, such amazing teaching technique You make very complicated concepts very easy to understand

[@bartomiejpalmowski215]

These concepts are not that complicated ;>

[@MikeStock88]

@@bartomiejpalmowski215 everything is complicated when you start out