Nightly Server Restart Script

About

This script is for scheduling server restarts on 3D printers running OctoPrint on a raspberry pi. It utilizes the OctoPrint API so it will not restart if a print is running or the printer is disconnected. It does attempt to reconnect once.

Setup

1. Clone the script to your pi

cd /home/pi/
git clone https://github.com/dorfman2/nightly_octopi_restart.git

2. Navigate inside the folder

cd nightly_octopi_restart/

3. Using an editor of your choice, fill in your API key and IP address into the config.py file.

4. Make the script executable

chmod +x restart_print_check.py

5. Create/Edit your root user crontab

6. Type sudo crontab -e and press enter.

7. If this is your first time editing crontab, select option '1.'

8. Add this line to the end of the file. By default it runs at 2 am.

0 2 * * * /home/pi/nightly_octopi_restart/restart_print_check.py >> /home/pi/nightly_octopi_restart/restart_cron.log 2>&1

4. Press CTRL S and then CTRL X.

Changing the time it runs at

More information about how to use cron can be found here.

I find this tool to be incredibly useful for helping to change

Troubleshooting

Testing that your script can be run by crontab.

• Type into terminal env -i /bin/bash --noprofile --norc and press enter.
• Then paste this and press enter.

/home/pi/nightly_octopi_restart/restart_print_check.py >> /home/pi/nightly_octopi_restart/restart_cron.log 2>&1

• If the Pi restarts, your script has correct permissions and is in the correct location.
• If not, check restart_cron.log.