- In the Dashboard, click Create Project +
- 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
- In Pick Add-ons, you can add one or multiple databases to your app
- Choose Create Repository to generate a new GitHub repo
- Finally, click Launch Stack
Full guide at http://diploi.com/blog/hosting_flask_apps
During development, the container installs Node.js and nodemon to enable automatic reloads when files change. The development server is started with:
nodemon --delay 1 --watch "pyproject.toml" --watch ".venv/lib/*" --watch ".venv/lib64/*" --watch "src" --ext "py" --exec "uv run --isolated flask --app src/main.py run --host=0.0.0.0 --port=8000 --no-reload --debug"This will:
- Activate the virtual environment in
.venv - This runs the Flask app defined in main.py using the uv tool in an isolated environment, making the app available on all network interfaces at port 8000, with debug mode enabled.
Builds a production-ready image. During the build, dependencies are installed with uv sync. When the container starts, it runs:
uv run --frozen gunicorn -w 4 -b 0.0.0.0:8000 src.main:appThis uses the Gunicorn to serve your application on port 8000.