Deploy Flask

Leash detects Python apps by the presence of requirements.txt. Flask apps are auto-detected and served with gunicorn.

Detection

If your requirements.txt includes flask, Leash picks the Flask build strategy and uses gunicorn as the production server.

Example App

from flask import Flask, jsonify

app = Flask(__name__)

@app.route("/")
def index():
    return "<h1>Hello from Leash!</h1>"

@app.route("/api/health")
def health():
    return jsonify({"status": "ok"})

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=8080)

Dependencies

flask
gunicorn

Deploy