How to Speed up Docker Development! 🐳 Hot Reloading, Debuggers, and More!

Docker is a powerful tool for building and deploying applications, but when getting started, development can be slow and frustrating... 😡

1) Enable hot reloading with nodemon and volume mounts
2) Configure the node debugger to work from inside the container
3) Set up docker-compose to encode all of the necessary configuration for development

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Timestamps:
00:00 - Intro
00:53 - Sample app overview
01:24 - Build + run
02:20 - Rebuilding image to make change
03:38 - Setting up nodemon + volume mounts
06:20 - Setting up inspect debugger
08:07 - Demonstrating debugger usage

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Community size at time of posting:
- Subscribers: 15680
- Channel Views: 477078

[slinco]

Boom! Just what I was looking for. Clear and concise. Thanks man 😃

[harbingerization]

Oh my god thank you so much! I spent all day yesterday on SO trying to find the right parameter to pass in for the volume. This explanation was so much easier to follow, and I feel like I have a better idea of how docker works in general.

[CritiKaster]

I love how you break everything down to understandable elements in your videos!

[aram]

Ohhh man, you are a godsend!!! The only docker hot-reload tutorial that really works - by simply breaking the linkage between node_modules and installing nodemon globally in the container! I still have some other problems, but at least you got me working. You made my day, honestly. Sub.

[parttimelarry]

Solid tutorial, very clear. Didn’t know how to use the debugger like this.

[pythonBlender]

Don't use compose its a crutch that will bite you later on when you need to do something more complex. Just take that run command stick it in a bash script. Its just as fast and way more extensible for the future

[jcsoftdev]

I'm new with Docker, but this tutorial was excelent. Thank you so much

[funkylosik]

Playing with docker. Was frustrated with parameters in "docker run", so thanks for showing docker compose ;)

[alexIVMKD]

Just saw your video on the Traversy Media channel. It was very good!

[ewliang]

Nice. Managed to get my project to hot reload (still needed to hit the refresh button on my browser though sadly) once I changed my nodemon run command to nodemon --legacy-watch. Now if only Docker Desktop's beta feature of "Dev Environments" can work properly... 😅

[luthfi]

Thank you for the explanation, this is what I'm looking for!

[mikopiko]

This got to be your best video so far, I visit it sometimes just to refresh my mind. May I ask your thoughts on daemonless container engines like podman?

[LifestyleLogger]

Brilliant docker tips, nice and to the point! Thank you 👍

[notcompletelyinsane]

Great stuff! Pretty much exactly what I was looking for and even more.

[ritik]

Nice video! But we don't need the second volume command as it does not copy node_modules folder. Inspect it using docker exec sh command. And we need to add -L in package.json after nodemon for lagacy commands

[jaxuys]

Great video! Thank you for making this, super clear!

[GabrielPerinazzo]

Hey Sir, hope you're fine.

May I ask you a question?

What if I install a dependency, should I always rebuild the container?

[moseskamau]

Its like you understood my problem! Thanks!

[techtalk]

I did everything as it is done on the video but the hot reload does not work. Am I missing something??

I installed nodemon in the container using this command:
RUN npm install -g nodemon

[sonvu]

immediately hit subscribe after watching your video!