DAY-35 | EVERYTHING ABOUT KUBERNETES SERVICES | DISCOVERY | LOAD BALANCING | NETWORKING

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DAY-35 | EVERYTHING ABOUT KUBERNETES SERVICES | DISCOVERY | LOAD BALANCING | NETWORKING | #devops

Рет қаралды 58,182

Жыл бұрын

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Hi Everyone, In today's class Day-35, We will learn about Kubernetes Services.
Problem 1:
------------------
In the last class, we learnt that Kubernetes Deployments can implement the auto-healing capability for pod that goes down using Replica Sets but whenever the new pod comes up, It comes up with a new IP address. So how the customer or user know about this new IP address ?
How is Service Discovery Implemented in Kubernetes ?
Problem 2:
-----------------
If you application requires multiple replicas of a pod to serve multi concurrent users, each replica of a pod has unique IP address but customers or users would need a one common IP address or DNS. Just like we all access google.com(DNS) or 8.8.8.8(IP Address) to access google.
How is this implemented in Kubernetes ?
Problem 3:
-----------------
How are the applications deployed as Pods in Kubernetes are accessed by external or people from other teams in your organization who don't have access to the Kubernetes cluster ?
Problem 1 is solved by Kubernetes Service
Problem 2 is solved by Kubernetes Service
Problem 3 is solved by Kubernetes Service
Watch the video to understand complete details.
Telegram channel
===============
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About me:
-----------------
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GitHub: github.com/iam-veeramalla
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Пікірлер: 194

@faisalraj6654 7 ай бұрын

Thanks!

@AbhishekVeeramalla 7 ай бұрын

Thanks alot for supporting the channel 😍. It means alot to the channel 🎉

@vback4238 Жыл бұрын

I can never get tired of saying you are the best teacher!!!

@AbhishekVeeramalla Жыл бұрын

Thanks alot

@freshersjobsite5703 Жыл бұрын

@@AbhishekVeeramalla sir, why did not you explain like real time for example in real time we can not access cluster like this, you should have explained kube config file

@freshersjobsite5703 Жыл бұрын

sir, why did not you explain like real time for example in real time we can not access cluster like this, you should have explained kube config file

@Rishabh_563 Жыл бұрын

Abhishek bhaiya doesn't needs devops but devops needs him 👑

@AbhishekVeeramalla Жыл бұрын

Haha .. thanks bhai

@kojodidio 3 күн бұрын

I am yet to learn Kubernetes as part of my DevOps course module. Those videos from Days 30 to 36 has really opened my eyes. Thank you Abhishek, your impact transcends continents.

@mohammed_rayees387 24 күн бұрын

Thanks alot Abhishek bhaiya for this wonderful Explanation of Kubernetes Services🙏

@Cloudnp9458 6 ай бұрын

For each deployment you will create a service in the world of Kubernetes. So what is ideal pod numbers/count of replicas is decided by number of concurrent users trying to access the application and no. Of user or load a single pod can handle. When a pod replica dies, a new pod replaces with new ip adress as a feature of auto healing Service created on top of development and it acts as load balancer. Instead of accessing the ips of every single pod, service is used instead. Service using the kube-proxy will forward the request to underlying pod based on label and selectors, load balancing them out at the same time. Service keep tracks of pods based on labels and selectors instead of ip adress, since ip adress are bound to change. Service also expose your application to the external world, for end user to use the application.

@devops-journey01 Жыл бұрын

One of the resources for DevOps .... Thank you for making this effort... You will be remembered as the best teacher for the upcoming DevOps Engineers... One of my best quotes: "" Wherever you go, leave your mark"".. Bro, you made a mark in this segment.. Once again thank you... ❤️❤️❤️

@AbhishekVeeramalla Жыл бұрын

Thanks a ton

@neelimagopu3743 Жыл бұрын

So true

@Satyanarayana_Mad 10 ай бұрын

Powerful Mentor only can teach powerful technology and same we are seeing here. Thanks bro your are besttttttttttttttttt mentorrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr.

@nagarjunahota4498 Жыл бұрын

Right time at right channel, am proud of myself, n thank u so much for creating this series for us ♥️

@AbhishekVeeramalla Жыл бұрын

My pleasure 😊

@prasantsahani9983 18 сағат бұрын

00:04 Kubernetes services are critical components in production scenarios. 02:17 Creating multiple replicas in Kubernetes helps distribute the load and handle more requests. 06:20 Load balancing and service concept in Kubernetes 08:33 Instead of giving each user project a specific IP address, create a load balancer service using Kubernetes. 12:50 Service discovery is an advantage of Kubernetes services. 15:10 Kubernetes service uses labels and selectors for service discovery mechanism. 19:21 Exposing application to the world 21:14 A Kubernetes service can expose your application outside the cluster. 25:24 Different types of service in Kubernetes 27:42 Kubernetes load balancer creates a public IP address for accessing the application. 31:29 Kubernetes services offer load balancing, service discovery, and application exposure. 33:20 Different types of load balancing in Kubernetes

@jeevrexx Жыл бұрын

Hi Abhishek, I don't know what to write more than that after reading all those comments below. You are Amazing Brother ! I heart fully wish good luck for all your future endeavors. May God shower his blessings upon you.

@AbhishekVeeramalla Жыл бұрын

Thanks alot 🙏

@rohanekar Жыл бұрын

You always say tricky things in a simple manner, and there are no words for your nice explanation always, you are the best teacher on KZfaq Thank you so much Abhi 😊

@AbhishekVeeramalla Жыл бұрын

Thanks alot

@mauriceobasi3734 Жыл бұрын

You are a guru! Everything is demystified !! Thank you sir

@AbhishekVeeramalla Жыл бұрын

Thanks alot . Please share the videos

@pranmohankumar4877 Жыл бұрын

You r the best mentor..your r giving the best understanding of any of the topics which I had seen.. thank you so much ❣️

@AbhishekVeeramalla Жыл бұрын

Thanks alot

@itsmendyou 10 ай бұрын

Thanks mate, your all the series are very useful and informative. You are putting lot of effort and time which is highy appreciable. Keep up the good work.

@AbhishekVeeramalla 10 ай бұрын

Thanks alot 😊. Your support means alot to the channel.

@user-my5lc6vc5v 17 күн бұрын

It's one of the best video on kubernetes services. Thanks Abhishek

@user-ec8gc3dl7m 5 ай бұрын

Thank you so much, Brother. You are a guru!

@shashankchoubey9253 6 ай бұрын

Awsome Blossom, I , got the better understanding of Kubernetes because of you thank you very much, :)

@rameshmuddurangiah4564 9 ай бұрын

Crystal clear explanation. Thanks sir

@vsekhar4405 Жыл бұрын

Very well explained Thanks for your efforts Abhishek

@AbhishekVeeramalla Жыл бұрын

Thanks ❤️

@shubhamtripathi3124 Ай бұрын

very concise, to the point, and informative love the way you teach.

@starstanly95 7 ай бұрын

wonderful technical aspects that your providing to the people is amazing. Especially, beginners would grab this as hot cake. I knew preparing these materials are not easy, but i appericate your good heart for sharing knoweledge

@AbhishekVeeramalla 7 ай бұрын

Thank you so much!

@mayankpull2603 3 ай бұрын

love your efforts in this videos feels great to be part of this comunity...

@VikramSharvansh Жыл бұрын

Thanks Abhishek. U made the DevOps easy.. Previously I hv gone through several KZfaq channels but no one provided the content like u.

@AbhishekVeeramalla 11 ай бұрын

Most welcome !!

@faisalraj6654 7 ай бұрын

Thankyou friend. I appreciate and respect the hard work you putting in the series which is benefiting all us folks who are pursing or in DevOps Role. Thanks

@AbhishekVeeramalla 7 ай бұрын

My pleasure!

@syedjohn6745 10 ай бұрын

The best ever tutorial on Kubernetes services......Thanks a lot Sir

@AbhishekVeeramalla 10 ай бұрын

Thank you so much 😀

@3am_watch 10 ай бұрын

Before starting video i everytime think i can not learn it but your teaching style is so good that it becomes easy to understand ❤️

@AbhishekVeeramalla 10 ай бұрын

Glad to hear that

@user-ut1qs1xy3z 4 ай бұрын

Very good explanation. Better than any paid courses on EdTech platform. Thanks for enlightening.

@AbhishekVeeramalla 4 ай бұрын

🔥

@subash7777 6 ай бұрын

this is a terrific ground level explaination. completely understood why service is used in k8s and its features. Thank you for the explanation sir🤟

@AbhishekVeeramalla 6 ай бұрын

Glad it was helpful!

@TheProductionEnvironment Жыл бұрын

great bro..Kubernetes services are now crystal clear to me !!

@AbhishekVeeramalla Жыл бұрын

Good 👍

@user-ht4wd9xg7w 9 ай бұрын

really bhaiya Your way of using Techniq and taking each of the points and clearing us in a good way to teach us is very awesome. I really appreciate that you are helping all people get jobs as a free class. Thank you so much, Bhaiya.🙂

@AbhishekVeeramalla 9 ай бұрын

It's my pleasure

@experiencetheinfinity 7 ай бұрын

bro trust me i had lot of courses frm lot of edutech companies and websites but no one explained me in the way u explained thnx a lot 🥳🥳🥳🥳🥳🥳🥳🥳🥳🥳🥳🥳🥳🥳🥳🥳🥳🥳

@AbhishekVeeramalla 7 ай бұрын

Means alot

@sureshmanupadu9118 9 ай бұрын

thank you sir for all information shared with us

@bitanji6851 2 ай бұрын

Great, and easily understand explaination❤

@nitishlanjewar2772 11 ай бұрын

Abhishek sirji , cleared my doubts for kubernetes thank you. your teaching is awesome , please make many more content it is beneficial for aspirants like us

@AbhishekVeeramalla 11 ай бұрын

sure, thanks

@isaacambi1914 5 ай бұрын

Finally understood service discovery.

@suhasiniaddanki7304 Жыл бұрын

These are very useful and anyone can understand easily. u r doing grt job sir🙏🙏

@AbhishekVeeramalla Жыл бұрын

Thanks alot

@Adityaa2 Жыл бұрын

Thank you so much my concepts are cleared after watching this video.

@AbhishekVeeramalla Жыл бұрын

Awesome

@vijaykumar-hh8sw 11 ай бұрын

Hi Abhishek, concepts which are confuse your explaining them very clear...if you don't mind can you please share documents class wise so that we can easily refer and remember those topic wise

@amitbadyal7631 7 ай бұрын

well explained. now i can say that kubernetes is easy.

@AbhishekVeeramalla 7 ай бұрын

Awesome

@sksabiruddin4291 Жыл бұрын

Cleared all doubts in one video 🖖waiting for other videos.!

@AbhishekVeeramalla Жыл бұрын

Awesome

@yoursyasuo5868 Жыл бұрын

This playlist is evergreen!

@AbhishekVeeramalla Жыл бұрын

Thanks a lot

@eeshaansawant6396 Ай бұрын

Great Content! Keep it up❤

@jayanandini5418 6 ай бұрын

Thanku so much abhishek bro

@jatinsharma3792 7 ай бұрын

Yes, you explain teh Beauty, with Question of "Why?". Mostly pople don't explain or try to get to explain WHY WHY WHY ? but you do which is imp. I will definelty tag you after making on project of application + permanent store of databases.

@AbhishekVeeramalla 7 ай бұрын

Yup, that is very important

@testtt5983 Жыл бұрын

Very well explained bro, Thanks for your efforts 🙂

@AbhishekVeeramalla Жыл бұрын

Most welcome 😊

@malathikamera2749 5 күн бұрын

Thanks alot Abhishek

@senthamilselvan21 2 ай бұрын

Great session!!!

@sriramvijayaragavan4522 Жыл бұрын

great efforts Abihishek. thank you

@AbhishekVeeramalla Жыл бұрын

Welcome

@Cloudnp9458 6 ай бұрын

There are three types of services 1. Cluster ip _ application will be accessed inside the cluster. Only if you have access to network inside the cluster/ cni /container network i.e flannel, calico. 2 node port - inside the organisation, or i can say whoever has access to the worker node ip address ( ec2 instance ip address or vpc ip address) 3. Load balancer type service - access service from external world. You will get ELB (elastic load balancer) in EKS, That has public address. Only for cloud provider implementation.

@veerumallavarapu7295 Жыл бұрын

excellent explanation. Thank you so much sir

@AbhishekVeeramalla Жыл бұрын

welcome

@rohandighe636 Жыл бұрын

Thanks Abhishek for this brilliant video on kubernetes service and it's types you cleared my concepts ❤❤

@AbhishekVeeramalla Жыл бұрын

thanks alot

@codemelife 2 ай бұрын

Thanks it is useful

@nehamahajan3129 Жыл бұрын

Thanks

@ravindraravi7435 3 ай бұрын

Thank you ^^

@BushMaster007 11 ай бұрын

Thank You Sir!

@AbhishekVeeramalla 11 ай бұрын

Most welcome!

@sudhanshukushwaha6351 3 ай бұрын

Osm man 💗🙌

@kvpulavarthi-zu9hg Жыл бұрын

Please clarify my doubt , How load balancer identifies the load on the pod as the labelling for all the pods of replica set are same. How it will distribute load to different pods.

@tanmoysantra1112 Жыл бұрын

clear concept of svc ❤

@AbhishekVeeramalla Жыл бұрын

Thanks alot

@jaykumaranbu7173 Жыл бұрын

Good One

@AbhishekVeeramalla Жыл бұрын

Thanks

@sabarisun8184 3 ай бұрын

@AbhishekVeeramalla Bro, Thanks for the detailed explanation, I can understand if a pod goes down, based on the label(not considering its IP) a new one will be created and continue from where it left. what happens, if 2 different pods with a same label goes down at a same time. Won't there be any clash or any issues(Hope we have some solution, but just wanted to know about the solution)

@AbhishekVeeramalla 3 ай бұрын

No issues

@sabarisun8184 3 ай бұрын

@@AbhishekVeeramalla Bro, Thanks for the quick response. Sorry for the another/chaining question 😋. Is this possible that a new pod created to replace Pod A (used by the developer team) could be scheduled on the same node where Pod B (used by the testing team) was running before. Similarly, a new pod created to replace Pod B could be scheduled on the same node where Pod A was running before(Opposite way). As both of the pods are having the same label-name.

@Hari-oi5zg 2 ай бұрын

HI Abhishek, your doing great job. I Noticed that, even while using cloud service such as AWS if we create nodeport service for any deployment, that application can be accessed using publicIP address of worker node + port of the node, by this can we understand like by using nodeport service also we can expose application to external internet world. some where i read it is not recommended but possible , correct me if i am wrong.

@suhasiniaddanki7304 Жыл бұрын

It's awesome video

@AbhishekVeeramalla Жыл бұрын

Thanks alot

@karthickdk 6 ай бұрын

I tried to learn Kubernetes in Udemy by Tutorials. But Abhishek Tech me lot, more than Any.

@AbhishekVeeramalla 6 ай бұрын

Glad to hear that

@mathewjoseph1348 3 ай бұрын

💖💖

@jayakrishna3738 Жыл бұрын

Nicely explained bro... Can you please take one session on TLS/SSL K8 Certificate related topics

@AbhishekVeeramalla Жыл бұрын

sure

@abhishekkulkarni3466 Жыл бұрын

Just osm Thank you so much Can you please conduct complete CKA certification course? Paid bhi chalega

@anjalishreya9890 Жыл бұрын

Hello sir, can you make one project for members only like 3 tier application suppose front end and backend as well as db. And please involved end to end like from git to kubernetes. And this project includes all open source tool which is popular in devops. Thankyou once again. For this amazing lecture.. Many things is getting clear now. About kubernetes and docker.

@AbhishekVeeramalla Жыл бұрын

Sure

@karunakargyara7799 Жыл бұрын

@@AbhishekVeeramalla please make one video on 3 tier application front end , backend and db using secrets and cofigmap

@VinayKumar-cm2nn 4 ай бұрын

hi Abhishek, 1.)can service send traffic to pod 2 also the traffic of user project 1 people. incase if needed. 2.) can a service be like all three types like loadbal,clusterip,node port in one single cluster.

@reneshmlal2809 3 ай бұрын

Thank You ❤

@AbhishekVeeramalla 3 ай бұрын

welcome

@harikrishnaobbu5731 Жыл бұрын

Super 👌 👍 😍

@AbhishekVeeramalla Жыл бұрын

Thanks 🤗

@ToughGuysWorld Жыл бұрын

Bro you are awesome.

@AbhishekVeeramalla Жыл бұрын

Thanks alot

@sadikhussain1128 Жыл бұрын

Nice explination anna

@AbhishekVeeramalla Жыл бұрын

Thanks 🙏

@StockGarjanaHindi 3 ай бұрын

Hey Abhishek how services work for on-premise if it is a load balancer type? How will a public IP address will be generated as it does not have CCM

@saikrishna-cs7ox Жыл бұрын

Bro thank you so much for these sessions .....and a small request from my side is if possible pls provide any sample resume for devops 4+yrs

@AbhishekVeeramalla Жыл бұрын

Check Hireit DevOps Resume Database bro

@saikrishna-cs7ox Жыл бұрын

@@AbhishekVeeramalla ohh ok bro, thank you so much for the reply

@nithinjohn135 Жыл бұрын

Bro are you covering advanced topics like k8s networking, istio , rbac , cluster role, bindings etc.. Also setting up TLS setup

@AbhishekVeeramalla Жыл бұрын

All that will be explained in a very simple way bro

@nithinjohn135 Жыл бұрын

@@AbhishekVeeramalla thanks ☺️👍

@adarshjha__1 9 ай бұрын

Day-35 done ✅️

@AbhishekVeeramalla 9 ай бұрын

keep going

@RajuSingh001732 Жыл бұрын

What i can understand with this video is that the service in Kubernetes is basically used to communicate with the application that we have Deployed Right.

@AbhishekVeeramalla Жыл бұрын

This is one point but there are other advantages that I explained in the video

@曼乔特库尔mk007 Ай бұрын

Please correct me if I’m wrong sir - svc helps the user to interact with application by offering load balancer. Without svc, user cannot interact with the application if pod fails somehow once in a lifetime because IP of a pod changes frequently.

@kaviarasu1234 10 ай бұрын

Hi sir , amazing work . Small query . I am into non it last 3 years .. want to move to devops and cloud . Now cleared aws cloud practitioner. And doing yours zero to hero . Is this sufficient to fetch a job in devops ..

@nick-sx2zn 12 күн бұрын

Hi anna, we may not exposing every service to outside world, we must be using services to disover other services in the cluster in that case what if a service which is for internal use haa gone down, then how can other service can discover the service which has gone down , as you said we will be giving the ip address of payment service to the user service, if the service has come up it might have new ip right, how will it get discovered?

@vikashprasad1893 Жыл бұрын

Hi Abhishek can you explain with actual real time example of day to day activities ..you explained well but not with actual scenarios in detail.

@AbhishekVeeramalla Жыл бұрын

Noted sure

@abdullahshaukat9232 5 ай бұрын

This mean. If 10 deployments then 10 services. And also 10 load balancers use?

@kannyabaswaraj Жыл бұрын

Hi abhishek can you please make a video on continuos integration delpoyent and delivery?

@AbhishekVeeramalla Жыл бұрын

Its already available on the channel. Please chdck ultimate cicd pipeline

@federico9505 Жыл бұрын

what if there are multiple workers? what will be the public address exposed? can more nodes be independent from each other and provide different services so more than one public ip must be available?

@AbhishekVeeramalla Жыл бұрын

Irrespective of the number of nodes .. service will be only one. So load balancer IP will be only one. That can be found by kubectl get svc

@prabhanthkumar8154 Жыл бұрын

also, pls do video on helm charts

@AbhishekVeeramalla Жыл бұрын

Sure

@sumitraii4566 10 ай бұрын

service has static ip address, so that application will be accessed at same ip,

@Furyard 10 ай бұрын

18:42 sir i understood the label and selectors but the question here is there are 2 team working on 2 pods both the team is having individual 1 pod if team A pod fails and with the help of deployment it again come up with the same label as it was before but how the service will decide that person from team A will be rendered to 1 pod which was using by his team A, the service might render him to pod 2 ?

@DAILY_JOB_UPDATES200 9 ай бұрын

To ensure that the traffic is routed to the correct pod, you need to set up a label selector in your service configuration that matches the labels of the pods you want to target.

@danilkumar5566 8 ай бұрын

HI Abhishek, while Expose Service LoadBalancer it's showing pending status and I don't see aws console any LoadBalancer. Eg:ku expose deployment app1 --port 80 --type LoadBalancer and i tried deployment through yaml file also it's showing External IP Pending showing. and i was checked in AWS Console also not able showing any LoadBalancer through iam using KOPS 1.i have gave full permission and ELB policy also. can you help me out where i was stuck.

@AbhishekVeeramalla 8 ай бұрын

Sometimes it might take a couple of minutes but if you watched it after couple of mins and still dont see it Check if the cloud controller manager is running and check the logs

@chiragkataria3133 Жыл бұрын

In case someone asks, can you please send me Abhishek sir's notes on Services Discovery and Load Balancing, it'll include subtitles for every second spoken in this video along with diagrams 😂 That's a great video, sir ❤

@nishanisha1266 9 ай бұрын

😂can I have that notes

@Claymore_2904 Жыл бұрын

Sir any detailed videos on AWS in the coming days?

@AbhishekVeeramalla Жыл бұрын

Yes .. Very very soon .. After Kubernetes

@sumitraii4566 10 ай бұрын

then what is the concept of ip changing

@nayaktek6248 Жыл бұрын

Hi Abhi, I have a requirement to delete the logs files in the mongodb pods which are created by statefull set in openshift cluster . so i created the cronjob but was unable to execute with mondodb pods. so how to connect the particular cron job with those pods. so that we can full fill the requirement.

@nayaktek6248 Жыл бұрын

Can you please guide me on this ?

@AbhishekVeeramalla Жыл бұрын

it is not easy to answer without looking into the cluster

@nayaktek6248 Жыл бұрын

Can you please mentioned the approach

@freshersjobsite5703 Жыл бұрын

sir, why did not you explain like real time for example in real time we can not access cluster like this, you should have explained kube config file

@AbhishekVeeramalla Жыл бұрын

Thanks for the feedback.. Will try sometime

@kohiyadav1703 8 ай бұрын

Hi Abhishek When I tried the kubernetes service I am getting error like "Failed to connect to IP port 30007: could not connect to server" I have referenced your video fully to do the same, but still facing issue. Please help me to understand what I am doing wrong here

@kohiyadav1703 8 ай бұрын

When do port forwarding it works, can you explain bit about it

@gauravsinghjethuri5405 Жыл бұрын

bhaiya can clear the difference between the first thing you have told about svc is load balancing and then you told that svc 3rd type is load balance, so my question that is there difference between both or they are same ?

@AbhishekVeeramalla Жыл бұрын

Both are same

@gauravsinghjethuri5405 Жыл бұрын

@@AbhishekVeeramalla okay thank you bhaiya.