0:25 - Overview Diagram of Kubernetes Components we create 1:42 - Browser Request Flow 2:17 - MongoDB Deployment 6:22 - Secret 12:34 - Internal Service for MongoDB 17:09 - MongoExpress Deployment 19:53 - ConfigMap 24:00 - MongoExpress External Service 29:27 - Setup finished - review 👉🏼 For any questions/issues/feedback, please leave me a comment and I will get back to you as soon as possible. Please don't forget to subscribe and give me a thumbs up if you liked my video 😊
Nana, your “Demo” videos are some of the most clearly and intuitively structured videos on any IT topic that I have watched ever, breaking everything down into a form that is so easy to understand. And for a complex subject, like Kubernetes, that is outstanding. I think that with these “Demo” videos you hit the sweet spot for the combination of subject complexity, level of detail, clarity of explanation and length of the videos. You are gifted, one in a million. Thanks for sharing your knowledge. Keep up the good work !
I have seen so many K8s videos even in local language...But this series is explained in such a simple way with the clear visual graphics ,that it gives a 100% satisfaction and clears every doubt of yours.
The best demo of an app deployment on Kubernetes that I saw on TH-cam! You explain step by step what are you doing and why. This way you make it easy to a Kubernetes newbie like me understand the basics. Great work Nana!
It is a short and expressive tutorial, thank you. I am running K8s cluster in Docker Desktop, so I had to do a little search and find a way to expose my express service to be able to access it in my browser. I did it by adding another service of type NodePort. I think it might be helpful for people who use Minikube alternatives.
Cool I love to hear that I could help you in getting more familiarized with Kubernetes :) K8s really has a steep learning curve and I hope I can make it easier for you guys to learn it
I am out of words. You are an excellent teacher. I have paid from so many courses in vain. You have taught me my biggest insecurity about K8s now I am so confident that I can do it. You made my day. Where were you all this time ? lol. Thank you so much.
You just saved my life. I was struggling with all the dummy tutorials, that explain components of K8s each separate one by one, because of that I was not able to make a complet a-z setup of a cluster. You got my subscribe 👍😎
TODO put notes in onenote In this example deploying two applications mongodb and mongo express (a ui for mongodb). Both are images available on docker. 5:30 defining environment variables that the application will then read in the deployment file, but without putting the value there (for security reasons because this file is checked in with the code). Instead we create a Secret config file and put the environment variable values there. Secret config file has kind:Secret Has type:Opaque, which is the basic type, there are other types. There we put in environment variable values, they have to be base64 encoded 8:35 deployment file will refer to the Secret config file to read the environment variables. So we have to create the Secret config file before we create the deployment. You apply the Secret configuration file in the same way as the deployment configuration file, kubectl apply -f secretConfigFileName Kubectl get secret shows you the created secret objects 9:50 how to reference secret in the deployment file 11:50 commands to check on deployment creating 12:50 service configuration file can be separate or within the same deployment config Started taking notes in onenote from here 13:30 service config and linking it to a deployment
wow, perfectly explained, i tried running basic app on cluster based on kubernetes tutorial, instantly got lost.. this looks amazing, gonna try now, thank you :)
Your videos are seriously allowing me to change and catapult my tech career! thank you so much :) These videos are seriously allowing me to change and catapult my tech career! thank you so much :)
I have been binge watching *ALL* your videos in this playlist over the last 2 days. Very clear and helpful. I had of course been going through various other tutorials on youtube as well, but I liked yours the best so far because: - The tutorials are clear enough to get me started on actually playing around with my setup. - You use plenty of diagrams which make it much easier to visualize. - You respect old foggies like me with large sized fonts (Thank you). This one was your longest video yet ... but it gave me so much information. From other videos, I was always confused about configmaps and secrets and how and where they fit into the overall picture. Now they are clear. But still have some questions: 1. How is Loadbalancer service different than NodePort service? 2. You had earlier mentioned about Ingress service ... will you have a video in near future on how to configure that? Also, if there is an ingress service, will we then still need this load-balancer service? Perhaps you could help answer these questions in your next video.
1. NodePort vs LoadBalancer vs Ingress - NodePort exposes the provided port on all your nodes using the same nodePort attribute as in LoadBalancer. So when a request comes in on the node-ip-address:node-port, it will direct it to the service at its internal cluster IP. - LoadBalancer will assign your service an external IP address or if your cluster is running in a cloud service that has its own LB, like AWS, G-cloud etc, it will provision the Cloud Provider's load balancer with assigned external IP. - With Ingress you can configure the traffic routing to your host. Like, your-domain-name/path to an internal service. I personally have used Ingress to configure all routing to the services that required external access. I only used LoadBalancer or nodePort to quickly expose a service to test. 2. I'm going to make a video of how to deploy Ingress controller in the cluster and configure routing with Ingress rules
I have been learning a lot from your channel. I was very lucky that I found your channel a few months back. Great tutorials for me moving from sysadmin to dev ops. Thank you very much Nana.
Just subscribed. Incredible video on Kubernetes. I am gonna start working on Kubernetes because of this. Will make the code public on Github Soon. Good Work.
Well done! the course is really handy and well organized, which addresses all the fundamental elements/components in Kubernetes. It will be great to produce another topic on how to deploy microservices on the Kubernetes environment.
@TechWorld with Nana Very well structured best ever content available on internet so far (Better than paid courses Udemy, Safirbooks, LinkedIn , etc...) Awesome work Nana. Keep it Up
Correction: you can't open ports by mentioning them in definition file. You just expose them. It's for informational purposes only. Great video 👍..loved it..
This is superb !! thanks a lot Nana. this is be best video on your series and cleared lots of doubts in minikube as well as Kubernetes concepts. .. especially the public IP creation for the services. Thanks a gain really good stuff and very informative ..
This is a great tutorial but I think it would have been worth mentioning that there was no persistent storage setup? Even if that wasn’t the point of the video I think databases are implicitly tied to persistence. That was a point of confusion but other than that, this was a really good tutorial to showcase all the other components of a deployment!
guys get your CKAD certs, you can literally create all the manifest files imperatively within seconds as you follow the video. LOL. Cool stuff man ! I love kubernetes !
Very nice explaination Nana. Thank you so much.please make and upload videos more practically on implementation of statefulsets using master slave technology and service discovery in kubernetes. Because I have lot of questions in the above requested topics.
Great video once again, one mistake if I am not wrong, LoadBalancer can have any nodePort value, it's nodePort type service which needs to have nodePort between 30000-32767. Moreover, nodePort attribute doesn't make sense for loadbalancer since you use it using the port no which you can set to 80
Thank you for your advice. Now i can see the IP but i get this error "loading machine "minikube": Error attempting to get plugin server adress for RPC: Failed to dial the plugin server in 10s
Nice explanation Nana.. I would say you are one of the best tutors out there for Kubernetes.. As and when you reach a considerable subscribers count, I think you can start your own portal for K8S and provisioning technology in depth courses.. Many would be happy to buy them. All the best 👍. Keep it up.. I really appreciate your efforts..👍
Another awesome tutorial! Worked real nice thank you (docker desktop v2.3 - macos). One difference I'm using docker desktop not minikube so accessing express was just using external service (LoadBalancer) port i.e localhost:8081. didn't have to do anything special like minikube service etc. thanks again :)
![Kubernetes Crash Course for Absolute Beginners [NEW]](/img/n.gif)
0:25 - Overview Diagram of Kubernetes Components we create
1:42 - Browser Request Flow
2:17 - MongoDB Deployment
6:22 - Secret
12:34 - Internal Service for MongoDB
17:09 - MongoExpress Deployment
19:53 - ConfigMap
24:00 - MongoExpress External Service
29:27 - Setup finished - review
👉🏼 For any questions/issues/feedback, please leave me a comment and I will get back to you as soon as possible.
Please don't forget to subscribe and give me a thumbs up if you liked my video 😊
Very practical video tutorial.
Best real time example 😊 #newsubscriber
The best example to showcase deployment ,services , configmap and secrets !!!
Thanks a lot! :)
yes - I must agree, well done!
Everytime I watch your tutorials.... I feel like, why didn't I watch this earlier..... Concepts are so clear.... Thanks a lot
Nana, your “Demo” videos are some of the most clearly and intuitively structured videos on any IT topic that I have watched ever, breaking everything down into a form that is so easy to understand. And for a complex subject, like Kubernetes, that is outstanding. I think that with these “Demo” videos you hit the sweet spot for the combination of subject complexity, level of detail, clarity of explanation and length of the videos. You are gifted, one in a million. Thanks for sharing your knowledge. Keep up the good work !
This is totally what I feel too after watching her videos!!
Thank you so much for your amazing feedback Jose. I'm really happy to read such comments! Really appreciate it!
I echo your words!
YOU ARE AWESOME 😊
I have seen so many K8s videos even in local language...But this series is explained in such a simple way with the clear visual graphics ,that it gives a 100% satisfaction and clears every doubt of yours.
This is the best video so far which explains complete application deployment in simple words and understandable english.
You are a good Tutor.
Thank you! :)
I wished everybody explained kubernetes like her. Damn, she is saving my life with this videos!
You are the best teacher nana. Thanks so much for this video
The best demo of an app deployment on Kubernetes that I saw on TH-cam! You explain step by step what are you doing and why. This way you make it easy to a Kubernetes newbie like me understand the basics. Great work Nana!
Thank you so much Gregory. Really appreciate your feedback 😊
This is the best video explaining application deployment over K8s, on TH-cam.
It is a short and expressive tutorial, thank you.
I am running K8s cluster in Docker Desktop, so I had to do a little search and find a way to expose my express service to be able to access it in my browser. I did it by adding another service of type NodePort. I think it might be helpful for people who use Minikube alternatives.
Thanks this was very helphull for my wsl2
Being a Devops fresher, Kubernetes was a nightmare for me but looking at your tutorials, it made me play more and more with kubernetes.
Cool I love to hear that I could help you in getting more familiarized with Kubernetes :) K8s really has a steep learning curve and I hope I can make it easier for you guys to learn it
@@TechWorldwithNana could you please make videos on kubernetes monitoring step by step with Prometheus and grafana?
@@ankitagarwal6014 Yes in the next video I already cover Prometheus and Grafana, hope it will be helpful for you!
@@TechWorldwithNana when will the video come?
@@ankitagarwal6014 I think Saturday or Sunday
I am out of words. You are an excellent teacher. I have paid from so many courses in vain. You have taught me my biggest insecurity about K8s now I am so confident that I can do it. You made my day. Where were you all this time ? lol. Thank you so much.
Wow I'm happy to hear that my videos helped you so much :)
You just saved my life.
I was struggling with all the dummy tutorials, that explain components of K8s each separate one by one, because of that I was not able to make a complet a-z setup of a cluster.
You got my subscribe 👍😎
I'm glad to hear Eduard! Thank you for your positive feedback 😊
TODO put notes in onenote
In this example deploying two applications mongodb and mongo express (a ui for mongodb). Both are images available on docker.
5:30 defining environment variables that the application will then read in the deployment file, but without putting the value there (for security reasons because this file is checked in with the code). Instead we create a Secret config file and put the environment variable values there.
Secret config file has kind:Secret
Has type:Opaque, which is the basic type, there are other types.
There we put in environment variable values, they have to be base64 encoded
8:35 deployment file will refer to the Secret config file to read the environment variables. So we have to create the Secret config file before we create the deployment.
You apply the Secret configuration file in the same way as the deployment configuration file, kubectl apply -f secretConfigFileName
Kubectl get secret shows you the created secret objects
9:50 how to reference secret in the deployment file
11:50 commands to check on deployment creating
12:50 service configuration file can be separate or within the same deployment config
Started taking notes in onenote from here
13:30 service config and linking it to a deployment
Seriously this was of the best tutorials i have ever seen. Thank you so much Nana!
crisp and clear ( any one can learn simply once see this video , thanks Nana)
crisp and clear . far better than paid courses like udemy
wow, perfectly explained, i tried running basic app on cluster based on kubernetes tutorial, instantly got lost.. this looks amazing, gonna try now, thank you :)
best and easy way to gain knowledge on deploying the app, thanks for the video Nana
You cleared many doubts about K8s setup. Thanks for the quick and concise tutorial.
Awesome, happy the videos was helpful for you :)
Best Explanation of K8s deployment, service, configmap & secret.Thanks for sharing.
Pretty awesome tutorial. Thanks for the clarity, the simplicity and managing to cover so many concepts at the same time.
Clearly explained! Thank you for taking the time for that video. Even people with 0 experience in K8s would understand what you did!
Great overview Nana. Keep these up. Nobody else on TH-cam is covering K8s and containers in such detail like you
Thanks, happy to hear that it stands out from other videos :)
Your videos are seriously allowing me to change and catapult my tech career! thank you so much :) These videos are seriously allowing me to change and catapult my tech career! thank you so much :)
The best Kubernetes tutorial I've come across, thanks for the clear explanation.
This session helped me a lot. Understood the E2E (basic) deployment in K8S. Thanks Nana!!
Very simple and clear explanation, i could follow every bit of it, watching it for the first time! Thanks for sharing!
👍 That's great and thanks a lot for your feedback Narendra :)
That's the first tutorial I am doing to learn Kubernetes, I feel like I found the right one ! :-D
Every time, I see, I learn something new! Thank you so much!
I have been binge watching *ALL* your videos in this playlist over the last 2 days. Very clear and helpful. I had of course been going through various other tutorials on youtube as well, but I liked yours the best so far because:
- The tutorials are clear enough to get me started on actually playing around with my setup.
- You use plenty of diagrams which make it much easier to visualize.
- You respect old foggies like me with large sized fonts (Thank you).
This one was your longest video yet ... but it gave me so much information. From other videos, I was always confused about configmaps and secrets and how and where they fit into the overall picture. Now they are clear. But still have some questions:
1. How is Loadbalancer service different than NodePort service?
2. You had earlier mentioned about Ingress service ... will you have a video in near future on how to configure that? Also, if there is an ingress service, will we then still need this load-balancer service? Perhaps you could help answer these questions in your next video.
Thanks a lot for this feedback! :) I'm glad that it's helpful. Come back for your questions later
Also would be thankful if you share and recommend my videos :)
@@TechWorldwithNana Will do.
1. NodePort vs LoadBalancer vs Ingress
- NodePort exposes the provided port on all your nodes using the same nodePort attribute as in LoadBalancer. So when a request comes in on the node-ip-address:node-port, it will direct it to the service at its internal cluster IP.
- LoadBalancer will assign your service an external IP address or if your cluster is running in a cloud service that has its own LB, like AWS, G-cloud etc, it will provision the Cloud Provider's load balancer with assigned external IP.
- With Ingress you can configure the traffic routing to your host. Like, your-domain-name/path to an internal service.
I personally have used Ingress to configure all routing to the services that required external access. I only used LoadBalancer or nodePort to quickly expose a service to test.
2. I'm going to make a video of how to deploy Ingress controller in the cluster and configure routing with Ingress rules
Amazing! Got all my queries resolved in one Tutorial. Thanks Nana!!
Top notch presentation. Very easy for even a novice to understand.
Woow is clearly explained. I have done this one time without any errors. thanks 😍
I have been learning a lot from your channel. I was very lucky that I found your channel a few months back. Great tutorials for me moving from sysadmin to dev ops. Thank you very much Nana.
Hello Dear, may god bless you and reward you for all the help you are providing. you deserve the best
Oh my god that is some useful tutorials you're making!
It's just a highly-concentrated theory with an immediate practise...
Love it
Excellent..Thank you so much!
After watching your video. Now it's clear to me. Deployment and service, configmap and how to create secrets.
thanks Nana you are the best !! i deployed my 1st application through your tutorial ! thanks a lot :)
One of the best explanations I have come across
Wow, thanks for the feedback Dishant :)
I think one simple "subscription" is not enough for such good videos. I can't help but want to buy you a cup of coffee. Thank you Nana.
Thank you so much! I do have 1 Udemy course: bit.ly/2Wc6kYW. You can check it out in case the topic is interesting for you 😊
We can help her by not skipping the advertisement that plays in between!
My most favourite devops tech channel ❤
Good Work Nana ! Simple yet Crisp & clear Explanation !
Excellent video Nana. Thank you for posting. Super relevant and super helpful.
Simply awesome, it's crisp to the point and voila you deployed the application...thanks much Nana, keep up the good work
Thank for your work on these tutorials! They're really helpful.
Thanks Erik, I'm happy to see that my work is actually helpful and not a waste of time :)
best video explaining the basics of kubernetes app deploymnet.. thx
You're welcome, glad you think so :)
Never seen something on Kubernetes so well and simply explained, great content thanks a lot. You get a new sub.
Amazing example and insights. Loved this tutorial, got a custom deployment up and running. Would recommend this to everyone!
Thank you, your teaching is very easy to understand the concepts
Love this series! Thank you. Very easy to follow.
I'm delighted that you loved the series Akshat! Thank you for the support. This is much appreciated. Please keep safe. 🙂
Hey Nana, I watched most of the videos from Docker and Kubernetes space and liked it all of them. Thanks for information.
Great Ganesh, hope you learned a lot from them 🙂
Very well explained example of deployment, service, secret and configmap
Great! Concise and Precise... keep progressing and sharing
It was Greaaaaat !
the best sample video I saw, explains details as a simple scenario.
thank you so much 👌
Amazing work Nana! Thanks a lot ! Kubernetes was never easier and well explained like you did it
Thank you Sabri 😊
Very well explained. Thanks for the effort!
This is the best video I have seen recently.. very well explained..
Thanks alot for doing like these valuable videos..
Really awesome mam..
Thanks a lot! Happy you think my videos are so helpful 😇
Just subscribed. Incredible video on Kubernetes. I am gonna start working on Kubernetes because of this. Will make the code public on Github Soon. Good Work.
Thanks a lot Nana your videos are well organized and to the point.
These are awesome Kubernetes video series. Love it. Thank you!!
Well done! the course is really handy and well organized, which addresses all the fundamental elements/components in Kubernetes. It will be great to produce another topic on how to deploy microservices on the Kubernetes environment.
Thank you for your feedback Zirak! 🙏 And also for your suggestion, will consider it :)
Amazing work Nana...really appreciate all your efforts & content!! Keep going ...thanks once again for demonstrating & sharing it so beautifully!!
The best video ever! THANK YOU Nana!
Thank you George :)
Great explanation of external and internal services 👍
@TechWorld with Nana Very well structured best ever content available on internet so far (Better than paid courses Udemy, Safirbooks, LinkedIn , etc...)
Awesome work Nana. Keep it Up
Correction: you can't open ports by mentioning them in definition file. You just expose them. It's for informational purposes only.
Great video 👍..loved it..
Your videos are incredibly helpful. Thank you so much for making these! You deserve way more views/subs
Thank you Andrew 🙏
This is superb !! thanks a lot Nana. this is be best video on your series and cleared lots of doubts in minikube as well as Kubernetes concepts. .. especially the public IP creation for the services.
Thanks a gain really good stuff and very informative ..
Great Example for beginners. Thanks Nana ♥
Excellent video! Very crisp and the example was great.
Thanks for explaining the concepts with simple example. Also I request you to do basic troubleshooting videos on kubernetes.
You're welcome :) Thanks for your suggestion, that's a good topic!
You are awesome Nana. Superb! clean n clear explanation
This is a great tutorial but I think it would have been worth mentioning that there was no persistent storage setup? Even if that wasn’t the point of the video I think databases are implicitly tied to persistence. That was a point of confusion but other than that, this was a really good tutorial to showcase all the other components of a deployment!
One word. Crystal clear !
guys get your CKAD certs, you can literally create all the manifest files imperatively within seconds as you follow the video. LOL. Cool stuff man ! I love kubernetes !
Excellent video and its explanation. Perfectly clear. Congrats!!
Amazing Video.... very well explained... Thanks for your great work...
wow.. I was having a difficult time in understanding YAML. This was good and fun. Thanks.
Thanks Gaurav :D Happy you liked it!
Awesome tutorial Nana. Best till now.
Thanks for your feedback Manish! 🙂
Very good explanation. Very well articulated.
Great video! I'm learning so much from this channel. Thanks for all the hard work you put into this.
Simply superb with great explanation.
Very nice explaination Nana. Thank you so much.please make and upload videos more practically on implementation of statefulsets using master slave technology and service discovery in kubernetes. Because I have lot of questions in the above requested topics.
Thanks for your feedback and also thanks for your suggestions, will consider it for my future videos 👍
Its was an amazing explanation and was very helpful. Thanks for sharing your knowledge.
Thank you Sushma, appreciate your feedback :)
Great video once again, one mistake if I am not wrong, LoadBalancer can have any nodePort value, it's nodePort type service which needs to have nodePort between 30000-32767. Moreover, nodePort attribute doesn't make sense for loadbalancer since you use it using the port no which you can set to 80
Need to know demo session more like this
your videos are very good . it has helped a newbie like me to gain confidence in K8s .Thank you :)
Awesome, glad it's helpful for newbies like you :)
@@TechWorldwithNana Can you also do some videos related to cloud platforms like AWS or Azure ?your presentation skillls are very good :)
Thanks for the tutorial it really help me to understand the flow in Kubernetes :)
You rock!!!! That video was fantastic!! Keep up the wonderful work
Thanks Stephen, happy to hear 😎
This is very good and clear explanation !
Please create a video on YAML for beginers.
Hi Tri, glad you liked the explanation! I already have a tutorial on YAML. You can check it out here: th-cam.com/video/1uFVr15xDGg/w-d-xo.html
Thanks for the great tutorial!
You're welcome. Stay safe and blessed. 🙂
Anyone not getting EXTERNAL IP :
run following command and see the IP :
> minikube tunnel
PS: Excellent Tutorial (y)
Thank you for your advice. Now i can see the IP but i get this error "loading machine "minikube": Error attempting to get plugin server adress for RPC: Failed to dial the plugin server in 10s
Absolutely fantastic!
Thank you Pavan. I'm glad you think so. 🙂
Immediatelly subscribed :-) - so far the best explanations of things i want to uderstand. Thank You.
Thank you so much 🙏happy to hear!
Fantastic!!!, Thank you Nana
Nice explanation Nana.. I would say you are one of the best tutors out there for Kubernetes.. As and when you reach a considerable subscribers count, I think you can start your own portal for K8S and provisioning technology in depth courses.. Many would be happy to buy them. All the best 👍. Keep it up.. I really appreciate your efforts..👍
Thank you Lalit. 🙂
Nice ...Thannks for your time to furnish the knowledge...Thanks a lot
Thanks Harish :)
Another awesome tutorial! Worked real nice thank you (docker desktop v2.3 - macos). One difference I'm using docker desktop not minikube so accessing express was just using external service (LoadBalancer) port i.e localhost:8081. didn't have to do anything special like minikube service etc. thanks again :)
You're welcome Max. Happy to hear. 🙂