Starting in tech can feel confusing, especially when you hear terms like containers, images, and Dockerfiles.
To build my confidence, I decided to create something small but meaningful: a Flask application running inside a Docker container.
This project became my first real experience with DevOps tools.
🔹 Why I Decided to Learn Docker
- Docker is a must-have skill in today’s industry because it:
- Makes applications run the same everywhere
- Helps deploy software easily
- Works with cloud platforms like AWS, GCP, and Azure
- Is used in DevOps, Backend, and Data Engineering fields
- Learning it early gives a strong advantage.
🔹 What I Built
I created a very simple Flask web app that shows a message in the browser.
But the real learning came from running this app inside a Docker container.
The Docker container included:
Python environment
Flask installed
My app files
A port to access it from the browser
This taught me exactly how modern apps are packaged.
🔹 What I Learned
- This project gave me a clear understanding of:
- How Docker creates isolated environments
- How a Dockerfile defines an app’s setup
- How to build and run Docker images
- How developers deploy applications
- I also learned how containers make software more reliable and portable.
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