Dockerize Your App Step-by-Step - How to Create a Dockerfile Tutorial

In this video, I will explain step by step how to Dockerize your own applications by writing Dockerfiles! In this tutorial, we'll use a sample Python application and create a Dockerfile together, starting from zero.

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🔴 Find below the GitHub repository used in the example:

🔴 And here is the complete Dockerfile created in the video:

Chapters:
0:00 Introduction
0:23 What is a Docker image?
1:32 Dockerfile basics
3:15 Create the Dockerfile
8:10 Building a container image
10:31 Dockerfile improvements - WORKDIR
12:03 How to debug failing instructions
12:58 A faster docker build with caching
15:38 Build without cache

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If you have any question or suggestions, I will do my best to answer every comment :)

[ManuelCastellin]

I would love to hear your thoughts on this tutorial! Are the concepts explained clearly? Is the presentation easy to watch and understand?
I'm learning and improving every day, it would be amazing if you could help me with a comment! 🙂

[truongnguyen]

Nice tutorial and a smooth voice makes this perfect!

[waltzofthestars]

Great job mate. And, besides the fact that this is the best tutorial on dockerizing applications, you have the best accent I've ever encountered on youtube.

[anilkommalapati]

Great work and thank you for your hardwork to empower us. This is amazing and made me understand docker quite easily. god bless u.

[mrleet]

The best tutoriel i see about how create Dockerfile ,
Thanks you

[warrenbaker]

Such an awesome tutorial! I have subscribed as I love how you are concise yet clear and you have such comprehensive and detailed explanations. And you show the different scenarios. Brilliant teaching!! Thanks so much!

[westraiser]

You are worth my subscribe. This video actually put all the puzzles of "dockerfile's how to's" on youtube into place. Great learning channel. Thank you.

[antob]

Excellent video. Great flow and diction. There is no mention of entrypoint and what does it do.

[juliocardenas]

This is clear, concise, and useful.
My only feedback is to perhaps slow down on the working dir section.

Thank you 🙏🏾🇲🇽🇺🇸🧑🏽‍💻

[javierbrenes]

This was the content I have looked for, any chance you start a series of videos about docker for beginners ?, Also I have seen several dockerfiles using FROM command more than once, why is this? for example,
FROM node:12-alpine as installer
.... Doing some copy and run

FROM node:12-alpine as builder
.... Doing extra work

How does this work???