Flask Component for Diploi

Operation

Getting started

1. In the Dashboard, click Create Project +
2. Under Pick Components, choose Flask. Here you can also add a frontend framework to create a monorepo app, eg, Flask for backend and React+Vite for frontend
3. In Pick Add-ons, you can add one or multiple databases to your app
4. Choose Create Repository to generate a new GitHub repo
5. Finally, click Launch Stack

Full guide at https://diploi.com/blog/hosting_flask_apps

Development

uv run flask --app src/main.py run --host=0.0.0.0 --port=8000 --debug

This will:

• Watch for changes and restart the server automatically
• Makes the app available on all network interfaces at port 8000, with debug mode enabled

Production

Builds a production-ready image. During the build, dependencies are installed with uv sync or uv pip install. When the container starts, it runs:

uv run --frozen gunicorn -w 4 -b 0.0.0.0:8000 src.main:app

This uses the Gunicorn to serve your application on port 8000.

Links

• Adding Flask to a project
• Flask documentation
• Python documentation
• uv documentation