0:36- Review Diagram - Workflow 1:49 - What is a Dockerfile? 2:22 - How the Dockerfile commands map to the image environment 8:05 - Create the Dockerfile (Demo) 12:00 - Build an image out of the Dockerfile (Demo - simulating Jenkins) 15:02 - Start the Application to verify: 1) App starts successfully 2) App environment is configured correctly 19:34 - do improvement - copy only relevant files 👉🏼 For any questions/issues/feedback, please leave me a comment and I will get back to you as soon as possible. 👉🏼 Also please let me know what you want to learn about Docker & Kubernetes. Also please don't forget to subscribe and give me a thumbs up if you liked my video 🤗

@madhavijonnavitula9668

10 ай бұрын

Very useful video....❤from india

@krishnamedas5895

10 ай бұрын

where do i get server.js file i can see it on my local machine thanks

Probably the dockerfile tutorial with the highest "information density" I know. Thank you for the sharp and precise explanations !

Omg, I've learnt so much from your video! You explained everything in details and very clearly. This helped me create my first Dockerfile, and it works perfectly

Good morning, I'm here to really commend and appreciate your good works. I do really enjoyed your series of videos on docker and Kubernetes. They are very inspiring, full of contents and simplified. Thanks

Nicely done video. Its clear and to the point. Thank you for your efforts and sharing your knowledge with the rest of us.

I actually took all my stuff and come resided here on your channel ,this becomes my new home , thank you very much , much love

@TechWorldwithNana

4 жыл бұрын

Awesome :D Glad to hear you like my channel :)

Great explanations! Really enjoying this video series and actually getting my head around Docker - thanks Nana!

@TechWorldwithNana

4 жыл бұрын

Thanks Tony, glad you like my explanations :)

Nana, am loving the way you are making us go through the concepts so clearly in a short amount of time , I had looked other videos but never felt docker this easy

Your way of explaining it makes me fully understand each of the concepts, thanks!

@TechWorldwithNana

4 жыл бұрын

That's nice to hear, thank you!

just starting out with docker. this was so helpful. thank you very much!!

You are amazing. I love your series and channel. Keep up your good work thanks!

Thank you Nana! It's absolutely a great tutorial.

For me the best beginners-tutorial for Docker I could find on youtube. Many thanks and greetings from Switzerland.

@TechWorldwithNana

3 жыл бұрын

That's very kind of you Raffael. I appreciate the support. Stay safe Switzerland. 🙂

I must say that, this is by far the best video/tutorial on Docker in KZread. I always had doubt about Dockerfile & Docker-Compose files but, thanks to your excellent videos and explanations. It cleared all my doubts. I'm really grateful to you. Wish I found your channel a lot earlier. Thanks a lot, Nana! :) #Subscribed

Thanks Nana. This video eradicates some of my confusions.

First of all thanks again for this video, very clearly explained with detail in simple terms, it is helping me in very much in my work!

@TechWorldwithNana

4 жыл бұрын

You're welcome! Happy to hear that they help you in your work :)

Hello Anna, concepts are very clear and understandable the way you have explained it with the example which makes us to understand very well. really appreciate your effort and hope to watch your more videos. thank you. and I wish all the best.

@TechWorldwithNana

3 жыл бұрын

You are very much welcome Madhu. I hope this tutorial series has greatly helped you in one way or another. 🙂

That was a great explanation. Subscribed.

Great tutorial, Nana!

You're the best!!!! Thank you so much for this.

Thanks a lot Nana, for simple and clear explanations.

That is really cool explanation, especially of the container having its own file system and how to connect into a container. What was missing, was actually a demonstration of using your the app. I presume the host browser could see and connect to the running containerised application, but does this require the Web port mapping are also stated in the Docker file?

Thanks for this video !!!

Great video, great instructions.

@TechWorldwithNana

4 жыл бұрын

Thank you so much!

Excellent teaching. Thanks to Nana

Great explanation. Thank you 😊

Good one, thanks for sharing this video

Your videos are just amazing

Wooww mam 🙏🙏 awesome explaination..👌👌crisp n clear.. thanks a ton.

What an excellent tutorial!!

Good Teacher in World, is you are.

You are a great instructor

Thanks, much appreciated.

great job thanks

Thanks for this , its really helpful

Thanks for this!

Your voice makes me crazy you have the most rare voice I have ever heard Excellent video for this topic

Thank you for making these videos

@TechWorldwithNana

3 жыл бұрын

You're welcome Tubejim. Please share with your friends and spread the knowledge. 🙂

All Videos r outstanding and I don't know how to say thanks to u. 🤗🤗✌

@TechWorldwithNana

4 жыл бұрын

Thanks a lot! Support me by subscribing, liking and sharing with others, who would be interested in such videos 🙂

Thanks Nana. It is very useful to understand.

@TechWorldwithNana

4 жыл бұрын

Thanks!

Thanks for your video and explained well

Best informative video ever!

Great Explanation.. Thanks a lot for bringing such a valuable content.. 🤗

@TechWorldwithNana

3 жыл бұрын

This is such a joy Ankit. Thank you. 🙂

Thanks for the video, but I think there are two things missing: 1- Exposing the ports in the Dockerfile and attaching them from the run command. 2- Using a Dockerignore file instead of manually moving the files to another directory.

Thank you so much for making this video. I love you Nana. ❤😂

Hi Nana, thank you for your tutorials! I hava question! Where are the environment variables used for? In the server.js these values are hardcoded right?

This video is so good I felt an urge to throw cash at the screen! How can we support the channel? Patreon? Merch? Paid courses?

@TechWorldwithNana

2 жыл бұрын

😄 Happy to hear that! I have several paid courses, check out www.techworld-with-nana.com/ Or right below the video it says "THANKS", where you can support me. Thank you so much in advance! :)

@okonkwo.ify18

2 жыл бұрын

I can throw in my btc wallet address for her 😂

@TechWorld with Nana : Thanks for this , its really helpful. Most of the concepts are cleared with you Docker in Practice Course. Really Appreciated :)

@TechWorldwithNana

3 жыл бұрын

You're welcome Nikhil. I'm grateful for the opportunity to help. 🙂

Clear Explanation.

you are the best ! thank you so much

@TechWorldwithNana

4 жыл бұрын

Thanks a lot Yassin! :)

Thank you it's very helpful

great video, thx

Very well explained

Nana, thanks for sharing.

Thanks for this amazing video mam!

you are so good!

Thanks a lot for this video !!!

Best explanation ever!!

@TechWorldwithNana

3 жыл бұрын

Thank you 😊

You 're really really good at explaining Docker clearly - will recommend to my data science students

you are the best...

Thanks!

I watch your video and clear my doubt since I was not able to clear last three days ♥️♥️♥️♥️

thank you :)

Thank you

thank you!!!

awesome videos maam...

Hi Nana @TechWorld with Nana, Thanks for this amazing video of making a docker image. I am having one question. How we can run our image that depends on some other images as whole application like in this video, we have used MONGODB and MONGO-EPRESS UI images for storing the data in DB. In last 2 minutes you said we can run the docker image from docker compose. May i know we can do that..?? ...Thanks

Basically the RUN command is like running a command during building the image, and when the image build is done, the command to be executed is written as CMD.

Thanks

Perfect

Dear Nana, thanks for creating very simple and informative playlist, I am exceuting all the code mentioned in the playlist and i am able to follow everything you presneted in this. Now at this stage when we are running our app image as container, we are getting the message app is listening at port 3000. But when i open this on brower it is not showing anythinb. Why this is happening? In order to run this from our image what steps I need to follow.

Hi, thank you for the detail explanations, these tutorial are very good and to the point. I wanted to ask you if you something on secrets using docker-compose and also any BuildKit tutorials for docker? Thank you!

@TechWorldwithNana

4 жыл бұрын

Thanks Jorge, regarding your question "secrets using docker-compose and also any BuildKit tutorials for docker" sure you can ask, what do you mean exactly, do you have any example?

@jorgepadilla392

4 жыл бұрын

@@TechWorldwithNana thank you, I think I figured it out, but your videos are very helpful and well explained. I am watching your kubernetes ones now. I appreciate your time and effort putting these together.

Hello Nana, i have a question let's suppose that i'm having a microservice app in which i'm using jenkins for continous integration for each microservice(each microservice has its own git repo in which i have specified the jenkinsfile, the src code and the dockerfile in order to build images for the genearted artifacts and pull them in dockerhub )How each image will talk to each other (i'm not going to build docker network manually i guess every thing should be done automatised )

Docker official tutorials are very bad... But you explain them like it is the easiest thing in the world! Thanks Nana

It seems like the container isn't created until the deploy step. Would we ever want to create a container earlier, during development?

Before building the image , I would v loved to take a look at your code if it had a .env file.

Hi! is it possible to change code without rebuilding image ? If we can, then pls tell how?

what about dockerfile workdir command.After you copy from host to container woud not be fine to set workdir to /home/app so that each further command as run will be executing in the WORKDIR container directory?Thank you

Hi Nina thanks for video but there is some more content I expected like downloading the artifact from repo whith login into that prvt artifact by encrypting the login details and building the image with that artifact

Informative and useful video. Two things 1. For windows ENV settings, do we use / or // or \ or \\ for PATHs 2. For java classpath, is it ["java","-cp"] or ["java","-classpath"] or ENV CLASSPATH? I would really appreciate it if you could go indepth into Dockerfiles for Java-Maven and Java-SpringBoot-Maven projects. Thanks again for your educational videos

Thank you So much Nana, The concept was explained so nicely. I Just have one query, Can we implement docker volume in docker file if yes, then how? (I tried to search for related video content but could not find any) You did explain in this video how we can copy the content of a local directory in to the container while creating one which is good.

@ajitjagtap4495

Жыл бұрын

Hello you use docker bind concept

Hi Nana, what is the use of STOPSIGNAL in Dockerfile. Can you please explain with a example.

U are awesome, god bless u NANA

@TechWorldwithNana

3 жыл бұрын

Thank you Heena. Please don't forget to share with your friends. 🙂

It will be helpfull if it explained by using build command and by using jenkins to build container

I have a question. In this docker file all we are doing is running node server.js, but what about the dependencies on mongo and mongo-express containers? Shouldn’t we include them as well as part of the Dockerfile?

Hi, How can I see a docker-file when the publisher hasn't put it on Docker Hub and there is no Git page? Also, you can use docker run --restart unless-stopped to ensure the container will restart after a reboot. Is it possible to do the same using docker compose? Thanks, Eduardo

Probably should cover ENTRYPOINT and LABELS also

When I want to learn about Docker I just type Docker Nana if i didnt save the video. U re simply great in explaining Docker, also DevOps 😊. My question is about Dockerfile. I am trying to create an avalonia app inside a Docker Image. The app should run using the weston compositor in Ubuntu environment. I have already Avalonia running using X11 but I would like to use the weston compositor Any help ? Thank you for your great Videos

Thanks for the clear explanations..!! After deploying my-app as container, the browser just shows empty page, tried to debug but no luck. Any idea, why?? However when my-app is run on host machine, I was able to see output in the browser and connects to mongodb container without any issues.

@queenofpain6483

3 жыл бұрын

same i just encountered the same issue. Were you able to solve it?

@hamza-325

3 жыл бұрын

I didn't follow this tutorial, but I think that she forgot to expose the port 3000 that is used by the Node server. I think that she had to write an EXPOSE command in the Dockerfile and add -d 3000:3000 to the docker run command.

@TimothyHuey

Жыл бұрын

@@queenofpain6483 the solution that worked for me was to change the line let mongoUrlLocal = "mongodb://admin:password@localhost:27017"; to let mongoUrlLocal = "mongodb://admin:password@mongodb:27017"; I will post at top. Several people are saying they are having the same problem. My environment is WSL2 on Windows so my fix may be specific to that environment or may be more widely applicable.

If I don't set an SO in my Dockerfile, will docker take the SO from the host system?

As part of this Dockerfile why are we not doing RUN npm install?

All tutorials are really awesome, pls consider using the white background in the terminal and in visual studio kind of tools, in a small screen it is really hard to see things on a black screen. Thanks.

please why we ignore the mongodb image when creating the docker file as its necessary for our application

tks

Hi, I need to copy files that are generated in one container to another. How can I do that?

Does running app with docker file will it run only app or both app and mongodb. Because in my case it is running app only and when I open browser the content of site at 3000 port is blank. And I am guessing it because of my mongodb is not running what say! Kindly please answer my query

When i run this docker build command , it showed me this error failed to solve with frontend dockerfile.v0: failed to read dockerfile: open /var/lib/docker/tmp/buildkit-mount595932089/Dockerfile: no such file or directory Thank you Nana!

If your docker instance is on a network that is isolated from the internet, can you download and then specify the node:alpine-13 image?

@MrSHowVIdeo

2 жыл бұрын

I'm probably too late to answer u but I'm sure u can download images from another computer and pull images from that computer to ur isolated instance using scp , rsync or sftp or whatever other cool tool of ur choice without issues.

weird, I cannot connect to the database. I start it up, and I see it is unable to connect to database. My URL is "mongodb://mongoadmin:password123@localhost:27017"; I can connect to it via mongo-express, it worked before I put the node.js code into a image. node server works, I can see it connected to a database, "node". I stop it, then start the container, and "/home/nodeapp/server.js" fails with the unable to connect to database. If I changed the URL fro localhost to mongodb (the name of my container) and joined the container to the mongo network, then it starts up

@TechWorldwithNana

4 жыл бұрын

when you start the node app as a docker container, it must connect to MongoDB (another docker container) using the name (mongo), not the host:port. That's why before you build the image from node app, you must adjust the db url to mongodb://mongoadmin:password123@mongo. Of course the db url in practice will be set from outside, so you don't have to adjust it back and forth all the time. But this is how it works, just to understand the concept. Let me know if you have any further questions.

Best teacher :) , I ve two qst: 1 . I become an error by building the image because of the encoding , the Dockerfile is in UTF16 encodoing how I could fix this to be in UTF8 2. Can I run/deploy windows based images in Linux host