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Created the required files to setup systemd units for autostart.

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Shaun Setlock
2022-06-19 16:11:44 -04:00
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# Creating systemd unit for Auto Start/Restart
### The steps below outline the process for creating a systemd service unit.
### This service will automatically start the python script.
## Procedure
1. Create the service template by copying `dht-start-restart@.service` into `/etc/systemd/system/`.
2. Define environment variables for an instance of this template by copying `dht-start-restart@pimonitoring1` into `/etc/default/`.
- __NOTE__: The instance should replace the name of the RPiZW. (e.g. pimonitoring2, etc.)
3. Create the instance and enable it with `sudo systemctl enable --now dht-start-restart@pimonitoring1`
- __NOTE__: It may be required to reload the systemd daemon. `sudo systemctl reload-daemon`
## Common Issues
- [ ] Is the `User=` in `dht-start-restart@.service` correct? pi vs. shaun
- [ ] Is the `{PATH_TO_FILE}` in `dht-start-restart@pimonitoring1` correct? `/home/pi` vs. `/home/shaun`
- [ ] Does the python script `main.py` contain any relative paths?