Logs: how to send relevant log messages to a Discord web hook

[Bivvo]

I have taken this bash script:

Release v1.6 - Add support for fields · fieu/discord.sh

… and reused it in the success rates script from this post:

Script: Calculate Success Rates for Audit, Download, Upload, Repair

Windows/Powershell version of the script: Linux/Bash version of the script: Grafana dashboard monitor of the script: [TIG stack] Daily Email Version: Historic Post: I found the current monitoring scripts very difficult to determine trends. And I was feeling like learning some better .bash. I created this script to better measure the ratios of successful transfers over time. I plan to have this run periodically, and send the results to a influxDB for Grafana monitoring. Please share…

E.g. this looks like this:

..
echo_downloads=$(printf '%.0f\n' $(echo -e "$dl_success $dl_failed $dl_canceled" | awk '{print ( $1 / ( $1 + $2 + $3 )) * 100 }'))
if [[ $echo_downloads -lt 98 ]] || [[ $DEB -eq 1 ]]
then 
	./discord.sh --webhook-url=$url --text "$([[ $DEB -eq 1 ]] && echo 'INFO' || echo 'WARNING') downloads: $dl_ratio"
fi
..

This will ping me via discord, in case the download rate drops below 98% and periodically in debug mode just for my (daily) information. Having the success rate script prepared, it is called via crontab with and without parameters.

I’ll extend that with other scripts like “scanning” the logs for FATAL or ERROR messages and/or SMART tests of the HDD(s) and push them on a regular base as well.