One of the best set of videos (maybe the best). Describing all aspects of the networking in kubernetes in details. I really enjoyed by watching the series and suggest it to all.

@TheLearningChannel-Tech

2 жыл бұрын

Many thanks for your positive feedback and glad it was helpful!

Merci beaucoup de partager vos connaissances avec une telle clarté🙌

I think this series of the course is the best course to learn k8s networking and it is completely free, rather than any paid course in Udemy which I already purchased. Hats off sir, you are incredible talented when explaining this.

@TheLearningChannel-Tech

8 ай бұрын

Thank you and glad you found them helpful.

Still watch this every time I need a refresher. Best series and teacher for K8s.

Thank you for videos, one of the best to understand Kubernetes networking!

I found the best kubernetes networking lecture. thanks very much!🙏

Excellent and detailed one. Looking forward for more topics.

one of the best series. keep educating. thank u

I am done with 4th part.. thanks a lot for putting such wonderful content..

You are a k8s scientist sir!!! You shared a great level of understanding about packet flow in k8s. It helps to visualize whole packet flow when i am trying to create pod or service. Thank you very much for your efforts of making such informative video.

I was looking for a exhaustive K8s video and this is the best video that i have ever seen.... Thanks...

@TheLearningChannel-Tech

8 ай бұрын

Thank you and glad it helped!

Fantastic set of courses, thank you very much.

@TheLearningChannel-Tech

2 жыл бұрын

Hi Alex, thanks very much and glad you like them!

@alexal4

2 жыл бұрын

@@TheLearningChannel-Tech Thanks you Garry. I pretty much wasted time watching the other videos, not many question left after your courses.

100% agree with all comments here , your teaching style is impeccable!! There is something about how you bring everything together !! im hooked to your content outstanding !!

@TheLearningChannel-Tech

2 жыл бұрын

Hi Pat, many thanks for your kind words and glad you found them useful. Thanks again!

Thank you sir~ Your video is really helpful for understanding the essential part of Kubernetes !

@TheLearningChannel-Tech

2 жыл бұрын

Hi, thank you very much! Glad it was helpful!

best course on k8s networking i have seen and have seen dozens

@TheLearningChannel-Tech

2 жыл бұрын

Hi Ariel, many thanks for your kind words and glad you found it helpful. Thanks again!

Really fantastic course, really really thanks to share it. Kubernetes Networking explained in details but also in enjoying manner!!!!

@TheLearningChannel-Tech

2 жыл бұрын

Hi Michele, thank you very much for your kind words, much appreciated! Glad it was helpful. Thanks again!

Great videos series for kuberenets. All concepts are crystal clear.. Thanks a lot for these series of videos..

@TheLearningChannel-Tech

2 жыл бұрын

Thank you very much! Glad you like them!

kudos to you for great series!!

@TheLearningChannel-Tech

2 жыл бұрын

Many thanks for your comment and thank you for watching!

Very detailed information video about kubernetes & CNI I have taken many courses across Udemy , KZread etc found the best explaination on kubernetes thanks ,,, keep rocking 😊😊

@TheLearningChannel-Tech

3 жыл бұрын

Thank you for your feedback, much appreciated!

very great series

amazing session as usual

Thank you so much for materials you make! They are much useful among other materials about k8s.

@TheLearningChannel-Tech

Жыл бұрын

You're very welcome!

excellent set of videos, many thanks, every K8S guy shall see it

@TheLearningChannel-Tech

2 жыл бұрын

Thanks!

@vagifgafar2946

2 жыл бұрын

@@TheLearningChannel-Tech You may just think of adding Ingress Networking to complete the series ! 🙂

Great video!

@TheLearningChannel-Tech

3 жыл бұрын

Thank you!

Excellent course ..actually the best course that explains every bits and bytes about Kubernetes Networking. you are fantastic.

@TheLearningChannel-Tech

2 жыл бұрын

Thank you!

@ahmedgouda1094

2 жыл бұрын

@@TheLearningChannel-Tech I only commented when I reached Part4, I work for a top-notch Telecom Provider and deploy 5G SA using the Kubernetes technology, and was lost about the networking part until I found your series.

@TheLearningChannel-Tech

2 жыл бұрын

@@ahmedgouda1094 Thanks Ahmed for your feedback and glad these helped. Thanks again!

Keep making kubernetes videos!!!

Best explanation on K8s neworking on the internet

@TheLearningChannel-Tech

5 ай бұрын

Thanks. Glad it was helpful.

best video of K8

@TheLearningChannel-Tech

2 жыл бұрын

Many thanks for your kind words!

Very useful video

@TheLearningChannel-Tech

3 жыл бұрын

Glad you liked it

Thanks

yeah 🕺

Thanks for wonderful session. Its one of detail and easy to understand the concept. Really appreciate ur efforts. Just one doubt. I believe POD network namespace is created by CRI with the help of pause container. And after then CRI call CNI plugins as per CNI config file.

@TheLearningChannel-Tech

6 ай бұрын

Hi, correct, this is a simplified explanation. Thanks.

33:35 isnt this wrong that the response is SNAT'ed? Because traffic has already been DNAT'et, the local node will know of the connection in its conntrack table, and it does not need to SNAT... ?

For the NodePort service, in the video at 37:50 In the the host network namespace of kube-node2, are you sure that Nodeport=10.0.0.135( IP of kube-node1) ? It should be the IP of kube-node2, Nodeport=10.0.0.164 right ? ( and different ClusterIP maybe) Or am i missing something?

@TheLearningChannel-Tech

Жыл бұрын

No, the NodePort IP is a single IP. That IP is really a load balancer that picks one of the servers in round robin fashion.

Hi, Again great content, thanks you so much for your work. Does this cluster IP is same for all the nodes in cluster ? You have mentioned that cluster service IP (virtual ip) which is created by kube-proxy, Since each worker node having kube-proxy, I am wonder how they know there is already virtaul IP is created (by kube-proxy of other worker node in cluster) or not (In case if cluster IP is same across all the node in cluster) Thanks

@TheLearningChannel-Tech

2 жыл бұрын

Hi, Kube-proxies on all nodes check the API Server (etcd) periodically to check if a new service is created, if so, each Kube-proxy will create the same identical ClusterIP on all their respective nodes.

I 've never such details anywhere.

@TheLearningChannel-Tech

2 жыл бұрын

Thank you, glad you found it helpful!

I have been learning a lot from this Networking Series, thanks for sharing, is there anyway we can get the slides used in the series.Thanks again

@TheLearningChannel-Tech

9 ай бұрын

Welcome and thanks for feedback. Sorry, I don't share the slides.

Thanks for the great series!! I have a question, when you say that cni's like flannel and calico provides an overlay network to overcome the complexity of a direct communication between the different nodes (when they sit in a different subnets/networks). how does an overlay network manage to overcome this complexity without changing the underlying network?

@shinemet

2 жыл бұрын

and another request, what is the command to configure iptables to loadbalance the traffic destined for the clusterip between all service endpoints?

@TheLearningChannel-Tech

2 жыл бұрын

Hi, as I believe suggested in your other post, watch my VXLAN video to get an understanding of what an overlay network is and how overlay network providers such as VXLAN work and why they are important: studio.kzread.infoWMLSD2y2Ig4/edit

@TheLearningChannel-Tech

2 жыл бұрын

Why would you want to construct it by hand? Kubernetes does that for you. You can query the iptables to see how Kubernetes creates the services.

@geetikabatra

3 ай бұрын

I had exactly the same question, I was not able to comprehend how does an overlay network here reduces the complexity. Thanks for the vxlan video

@geetikabatra

3 ай бұрын

Also, does IPtable use other than random method to select the pod ip like round robin or something. Is there any video to understand iptables or is it covered in vxlan video?

can we docs for the videos..?

How did you synthesize the network logic of these more fundamental kubernetes workflows? By capturing packets and studying the differences between them in certain contexts and then looking at various logs and ip table entries or? That's what I'd like to understand is how you came by the knowledge of how these networking workflows transpire? Or did you just read documentation haha? I don't think most of this is covered in docs, but maybe I'm wrong.

@TheLearningChannel-Tech

6 ай бұрын

Hi, a lot of research, experimentation, and experience using the product. As you probably know Kubernetes in general, and its networking in particular is very complex. Through these series I've tried to cover concepts using animation to hopefully make the subject matter a little easier for the viewer to understand. I hope I have achieved that goal. Thanks for watching and your comment!

very much informative knowledges on k8s networking form all perspective, please could you provide the link for the list of commands being executed, which is available in VisualStudioCode, many thanks

@TheLearningChannel-Tech

2 жыл бұрын

Hi, here you go: github.com/gary-RR/myKZread-video-kubernetes-services

could you please add section install IPVS on kubernetes. Thank you

@TheLearningChannel-Tech

3 жыл бұрын

@vtvvn ha, hi and thanks for your suggestion. I will add it to my list of future videos. Currently I'm working on a couple of new videos s it may take a little bit of time to get to it. Thanks again!

@TheLearningChannel-Tech

2 жыл бұрын

Hi, sorry it took a while to get around it but just published it: kzread.info/dash/bejne/np-MrtV9ZpCamqQ.html

Hi, Could you please help me to understand What is difference between External IP and LoadBlancer IP wrt cloud and on-rem cluster deployment ? Thanks

@TheLearningChannel-Tech

2 жыл бұрын

The Loadbalancer service type is typically implemented by the cloud providers such as Azure, Google, AWS, etc. The cloud provider automatically provisions a load balancer that maps an external VIP to a Kubernetes service hosted on Kubernetes nodes. In the external IP case, it is your responsibility to map an IP address to a node IP or group of nodes (you'll need to set up a load balancer in this case). You can then include that IP in your service definition in the form of: spec: ....... externalIPs: - xxx.xxx.xxx.xxx

@bvr333

Жыл бұрын

​@@TheLearningChannel-Tech For Managed kubernetese in AWS The Loadbalancer service type is typically implemented by the AWS EKS. while using EC2 servers (Native kubernetes on AWS) , we can launch ELB and map that to cluster IP or we have to use ELB/ALB and map the target nodes to Load balancer

@TheLearningChannel-Tech

Жыл бұрын

ClusterIPs are not visible outside the cluster, a better option would be to use a "NodePort" service. The NodePort service is callable through the IP address of cluster servers and a random port number. You could then set up a load balancer that maps a virtual IP address/name and say port 80 to one of the cluster's server and the NodePort service's port in a round-robin fashion.

Good video! How do you copy line from editor and paste it to terminal? :)

@TheLearningChannel-Tech

2 жыл бұрын

Hi, Thanks. In vscode you can bind a function key to automatically execute a command typed in the editor command in the terminal. In my case, I bind F8 to "Terminal: Run Selected Text In Active Terminal". This will execute the line that the cursor is on or highlighted in the terminal. To do this: 1) In vscode, click "File" (if you are on Windows) or "Code" (if you are on MAC) and click select "Preferences/keyboard shortcuts" 2) In the dialog box type and search for "Terminal: Run Selected Text In Active Terminal". 3) Click on the pen icon and when the edit dialog box opens, click on a function key (like F8) to bind it to. 4) Go back to vscode main menu and click on "Terminals/New terminal" to open a new terminal. 5) You can now type any command in vscode editor and press your chosen bound function key to automatically execute in the terminal. Hope this helps.

@Jaynext2

Жыл бұрын

@@TheLearningChannel-Tech Sir, you are so kind 😇 Your Kubernetes videos are awesome 😃

@TheLearningChannel-Tech

Жыл бұрын

@@Jaynext2 Thank you.

Is there a video talking about Ingress, Ingress controller etc... ?

@TheLearningChannel-Tech

Жыл бұрын

A new Cilium mesh video which includes ingress will be released soon.

@spiraldynamics6008

Жыл бұрын

​@@TheLearningChannel-Tech thank you

thanks for your great course, how we can access the code?

@TheLearningChannel-Tech

Жыл бұрын

Hi, thank you. You can find the scripts here: github.com/gary-RR/myKZread-video-kubernetes-services

Hi Can pls add this ppt PDF and command or script in your GitHub rep Please share the link

@TheLearningChannel-Tech

3 жыл бұрын

Here you go: github.com/gary-RR/myKZread-video-kubernetes-services/tree/main. This is raw, make sure you change the IPs, etc. to match your Cluster.

@ravikiranravada1059

3 жыл бұрын

@@TheLearningChannel-Tech u are amazing thanks

@TheLearningChannel-Tech

3 жыл бұрын

@@ravikiranravada1059 Welcome!

Pod Test is not a part of hello-world deployment

@TheLearningChannel-Tech

8 ай бұрын

??. Could you clarify exactly what you mean please? Thanks.