Dockerfile Explained for Beginners 🔥 | Full Example with Python App
🚀 Learn How to Write a Dockerfile (Beginner-Friendly)
If you're new to Docker, this video is the perfect starting point! We’ll break down each part of a Dockerfile in a way that even complete beginners can understand.
📦 What you'll learn in this video:
What happens before and after writing a Dockerfile
Step-by-step explanation of each Dockerfile instruction
Real-world example using a Python app with app.py and requirements.txt
Building Docker images and running containers
🧑💻 Topics Covered:
FROM: Choosing a base image
WORKDIR: Setting the working directory
COPY: Moving your files into the image
RUN: Installing dependencies
CMD: Running your Python app
🔧 Example Used:
A minimal Python project that runs app.py using Flask or any basic script
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⏱️ Timestamps:
00:00 Intro
00:29 FROM – Base Image
00:34 WORKDIR – Working Directory
00:37 COPY – Copy Files
00:45 RUN – Install Dependencies
00:49 CMD – Run the App
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