▬▬▬▬▬▬ 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 :)
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?
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!
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
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.
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.
"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!
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 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)
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.
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.
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!
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!
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
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.
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.
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
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.
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!
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
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!
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.
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:)
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!
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 , on 4:36 , if we change replicas of a deployment file, it will not create a new pod, instead it creates a container and all containers from same deployment file will be called as a pod. reference: Container: A container refers to a lightweight and isolated runtime environment that encapsulates an application and its dependencies. Containers provide a consistent and reproducible environment for running applications, ensuring portability across different infrastructure and operating systems. In Kubernetes, containers are used as the fundamental building blocks for packaging and deploying applications. Pod: A pod is the smallest deployable unit in Kubernetes. It represents a logical group of one or more containers that are tightly coupled and share the same lifecycle, network, and storage resources. Containers within a pod run on the same underlying worker node and can communicate with each other using localhost. The primary purpose of a pod is to provide a cohesive context for running related containers, often as part of a single application or microservice. please correct me if I am wrong.
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 ....
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 !
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.
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!
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 :)
▬▬▬▬▬▬ 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 :)
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?
I am chinese,UNIX/HA/STORAGE admin in canada, your video is great! your video is better than any training center in china!!
It's really amazing 🙏
Thanks a ton Nana. This video has helped me understand the concept more clearly and clear up confusions I had.
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?
Nobody can explain Kubernetes better than you! Even a child could understand it. Thanks for sharing such wonderful stuffs.
Thanks Ritesh, that's a great feedback :)
Agreed...thank you Nana
I do agree, but child must have @Ritesh age 😄
Bhaisahab ye kuch zyada nahi hogaya?
Exactly!
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!
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
That's amazing to hear, thanks for sharing :)
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.
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.
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.
"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!
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.
How the pod communicate with backend pod ??
@@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)
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.
Great to hear 😊 Thank you for your positive feedback!
Everytime I watch this, I will drop a comment so that it will raise through the algo ranking. Nana deserves it
Thank you, your support means a lot!
I don't remember watching a technical video with such joy.
It was truly incredible and wonderful. I love it!
Please never stop!
Thank you so much! I'm happy to hear such positive feedback 😊
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.
The most clear and easy to understand content that I found for service. You helped me a lot. Thanks Nana.
This was absolutely fantastic - some of the most complicated concepts explained in a matter of mins.. you are a superstar
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!
Me too. All the best.
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!
Finally a networking tech video that speaks my language!
Excellent tutorail..... I took 50+ pauses to grasp this ocean of knowledge.
Me too ..
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
That's great, thanks for your comment! :)
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.
this is one best video on kubernetes services, explained in detail
She makes me love my software engineering degree. Her explanatios is clear and precise. Thankyou so making it easier for us.
You speak what the listener wants! Stunning display of content. Struggling with this concepts from quite a long. Thank You!
Wow really glad to hear 😊 Thanks for your feedback 🙏
Great combination of concise language and clear graphics. Helping me get up the k8s learning curve quickly! Great job.
Thank you Simon 😊
Speechless, Awesome, Marvelous, Excellent, Bingo, I don't have words to say for your teaching style. God bless you and keep it up.
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.
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
Thank you 🙏
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.
This is best video I have seen for k8 services, please please continue the good work. Big fan of you Nana 🎉
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.
very complex things you explained very easily. thank you so much for your hard work.
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!
This is so much clearer than the majority of the videos that are out there. Excellent job,
Thank you 😊
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
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.
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!
Best tutorial I've seen on Kubernetes in a long time - Thanks for the explanation!
The best explanation you can find out there for K8s services. Thank you Nana!
I was looking for this topic. Got it. Thanks for posting valuable content. Your videos are so clean and clear. Liked it.
Thanks a lot Ankush, really happy to hear :)
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! ;)
I am a great fan of you. Your way of explaining technical stuffs is phenomenal
Akka(Sister) great stuff. Have been through many websites to understand Networking Service, but this was to the point.Thanks much.
(Count 2) Every time I watch this, I will drop a comment so that it will raise through the algo ranking. Nana deserves it
Your videos and explanations are EXCELLENT. I especially like the graphics and animations!!!
Beautiful explanation I have seen multiple videos not single explains in such details and provide the clarity
Great explanation, you've given me a better understanding of k8s services. Keep up the good work.
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.
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
This is one of the best learning platform for learning Kubernetes 👋👋
This is the most useful video regarding kubernetes services exposure I've found
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:)
If teaching is an art, you're an excellent artist
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!
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
That's amazing to hear! Thank you so much for your comment 😊
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.
So much information in this video. These kind of videos are useful for quick learning. Thanks
Thanks very much, very clear explanation of this complex topic! Your video is much easier to understand than the official documentation!
@TechWorldwithNana , on 4:36 , if we change replicas of a deployment file, it will not create a new pod, instead it creates a container and all containers from same deployment file will be called as a pod. reference:
Container: A container refers to a lightweight and isolated runtime environment that encapsulates an application and its dependencies. Containers provide a consistent and reproducible environment for running applications, ensuring portability across different infrastructure and operating systems. In Kubernetes, containers are used as the fundamental building blocks for packaging and deploying applications.
Pod: A pod is the smallest deployable unit in Kubernetes. It represents a logical group of one or more containers that are tightly coupled and share the same lifecycle, network, and storage resources. Containers within a pod run on the same underlying worker node and can communicate with each other using localhost. The primary purpose of a pod is to provide a cohesive context for running related containers, often as part of a single application or microservice.
please correct me if I am wrong.
I rarely comment on videos but this one made me want to compliment you! Excellent work! :)
Again, you're the best DevOps teacher
Great insight, best thing was how you linked all the service types with one another. Thanks a lot.
Happy you liked it! :) Thanks Arpan!
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 ....
These videos are great!! You explain incredibly. Salutes from Colombia!!
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 !
Unbelievable teaching skill and video graphics :)
Wow! Never seen such a crisp and easy explanation of k8s concepts. Thank you so much. Please keep making such excellent videos.
One of the best logical explanation. Really appreciate your effort
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.
best explaining video I watched so far. congrats!
Very nice and simple explanation Nana.. Keep posting more videos and help people learn new technologies..
Your explanations are simply AMAZING
Nana, your videos are fantastic! I've learned a lot from them!
Ive just started learning much more on devops and sre and subbed. these videos are great at explaining in my opinion.
your way of teaching is fantastic!
Thanks Bruno, appreciate your feedback :)
Hello from 🇮🇳..... very happy to watch your videos and they very crisp and clear 👍👍👍
Thanks a lot :)
You are the savior.. Thank you so much for this excellent explanation .
Thanks every much for these videos' its very hard to find something explained so well online.
You are the best in this sector. thumbs up
One of the best tuts on services. Very well explained. 🙌
This is awesome explanation of service.. thank you so much
By far the Best Explanation ever... Thank you Mam...😊
Thanks Nana for clear the concept of service in kubernates!!!
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.
Very well articulated! Learnt a ton by going through this playlist! Thank you!
Excellent, easily explained step by step everything. Fantastic.
Nana thanks for the awesome video it helped me alot... You explan the complicated information in a simple way ❤
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!
thanks. It was a clear explanation, specially how diff. services work together
That's Crystal clear explanation @TechWorld with Nana !!! Thanks for this Video
You make it so easy to understand! Thank you!
8:31 how does the cluster ip service decide which pod to send request to? Does it do load balancing or sends request to only one pod till it is alive.
Can't thank you enough, the clarity in this video is superb.
The best video so far which I found to understand services, @Nana you are amazing ! Thank you so much !
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 :)
Hi Nana your videos are amazing, keep up the good work :) also a series on microservices would be awesome :)
Thanks Diego, appreciate your feedback :) Also thanks for your suggestion!
I am chinese,UNIX/HA/STORAGE admin in canada, your video is great! your video is better than any training center in china!!
@@hpibmsun Thank you 😊🙏
Thank you for creating this video, Nana! It is clear and to the point!
Highly recommended for beginners to get the k8s knowledge correct in the first place.
¡Gracias!
Thank you so much Nana for such informative video. Very easy way you clear my confusion.