A simple flask+sqlalchemy webfrontend for cron, in my case used to turn a raspi based internet radio on and off at certain times during the week

Besides the latest version of python3, a number of separate packages is required. Install these as described below. If you want to run pischedule using a normal webserver (Apache, lighttpd or nginx), a wsgi file and uwsgi ini file are supplied. Refer to the many available uwsgi setup tutorials for your specific operating system flavour.

pip3 install -r requirements.txt

Install the following packages manually:

• flask
• flask-wtf
• uwsgi
• flask-sqlalchemy
• sqlalchemy-migrate
• docopt

Before running, you should set a secret key. Open a python console and run:

import os
os.urandom(24)

Copy the resulting (byte)string, open config.py and paste the copied value as a value for SECRET_KEY.

Then you should create a database using db_create.py.

You can easily start a development server using:

python3 run.py

If you're ready to run the server without development settings, open up config.py once more and set DEBUG = False to disable debugging.

The webfrontend only maintains database entries; which user will actually be running the commands programmed is up to you. By running the supplied run_tasks.py file, the crontab for the current user is updated with all start/stop entries from the database. It's probably a good idea to run the run_tasks.py script every once in a while using cron itself, so the crontab remains in sync with the database.