A Procfile is a text file used in the Flask framework to specify the commands that should be executed by a web server when starting the application.
To create a Procfile for a Flask application, follow these steps:
- Open a text editor.
- Create a new file and name it "Procfile" (without any file extension).
- In the Procfile, write the command that should be executed to start the Flask application. Typically, this command is "gunicorn" followed by the name of your Flask application module, like "run:app". This tells the web server to start the Flask application using the "run" module and the "app" object.
- Save the Procfile in the root directory of your Flask application.
Once the Procfile is created, you can deploy your Flask application using a web server that supports it, like Heroku. The web server will read the Procfile and execute the specified command to start your Flask application.
Note: Make sure to install the necessary dependencies and modules required by your Flask application before deploying it. This can be done using a requirements.txt file or other dependency management tools.