At Hootsuite, my team was working with a dockerized flask app. Because we hadn’t set up hot-reloading, when we were making updates to the flask app and testing locally, we had to manually tear down the containers and bring them back up between each change. This took some time, and was mildly disruptive to our workflow, so I worked on setting up hot-reloading.

Table of Contents

• Setting up the flask app
• Creating the dockerized flask app
• Adding hot-reloading

Prerequisites

• Python
• Flask
• Docker
• Watchman

Setting up the flask app

First, let’s create a directory to house the code.

mkdir hot-reloading
cd hot-reloading

Create a requirements.txt file.

touch requirements.txt

And add…