Deploy guide · runtime = "python"

Deploy Flask on Percher

Flask is Python's lightweight web framework — minimal core, blueprints for structure, and Werkzeug under the hood. Percher detects `flask` in `requirements.txt`/`pyproject.toml` and ships it on the Python runtime via Nixpacks.

Why Percher fits

• Flask's request lifecycle is short and synchronous — fits Percher's container model with no async surprises.
• Set `mode = "pocketbase"` and a managed PocketBase comes up alongside the app; auth, file storage, and SQLite without wiring up Postgres.

Quick start

bunx percher create my-app --template flask
cd my-app
bunx percher publish

The first command scaffolds a working Flask project plus a `percher.toml`. Publish builds and deploys it; the live URL prints on completion.

percher.toml

The canonical config for a Flask app on Percher. `bunx percher init` generates this automatically when it detects Flask in your project.

[app]
name = "my-app"
runtime = "python"
framework = "flask"

[web]
port = 5000
health = "/health"

[data]
mode = "pocketbase"

Common gotchas

• Production needs a WSGI server — `gunicorn -b 0.0.0.0:${PORT} app:app`, not `flask run`. Add `gunicorn` to your requirements.
• Add a `/health` route that returns `({"status": "ok"}, 200)`; the deploy health check is strict about the 200 response.

Related docs

• Recommended setup →
• Environment variables →

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