When it comes to learning, I tend to retain info best by doing it myself (and failing many times in the process), and then writing a blog about it. So, surprise: I decided to create a blog explaining how you can get a Flask app up and running with Docker! Doing this on my own helped connect the dots when it came to Docker, so I hope it helps you as well.
You can follow along with my repo here:
First, I created a simple Flask application. I started by making a parent directory and naming it chloes_flask_demo.