Support Uptime Kuma for monitoring

[JvdMaat]

Can you add push notifications for Uptime Kuma?
From what I can tell, in Uptime Kuma we'd need to just create a push notification monitor with a x hour (time between backups plus some slack for slower backup runs) heartbeat interval. And from this container, it's just a matter of pushing:
https://uptimekuma.domain.com:3002/api/push/SECRETCODE?status=up&msg=OK (if it succeeded)
https://uptimekuma.domain.com:3002/api/push/SECRETCODE?status=down&msg=ERRORMESSAGE INFO (If failed).
And this could either be a global thing (in which case the error message would need info on which DB it is related to for a failure), or a unique monitor per DBxx
(The variable to provide to this container would be the Push URL (Uptime Kuma provides it as "https://uptimekuma.domain.com:3002/api/push/SECRETCODE?status=up&msg=OK&ping=", so that's what most people would copy/paste from Uptime Kuma)

[matheusvellone]

I created a script on /assets/scripts/post/uptime_kuma.sh to work as a post backup script.
This way, after the backup is created, the monitor is notified 😄

It loads the env named DBXX_UPTIME_KUMA_URL from the database and ping it.
The inference is made through the DBXX_HOST value, which will conflict if the same host is specified more than once.

#! /bin/bash

set -euo pipefail

# $1=EXIT_CODE (After running backup routine)
# $2=DBXX_TYPE (Type of Backup)
# $3=DBXX_HOST (Backup Host)
# #4=DBXX_NAME (Name of Database backed up
# $5=BACKUP START TIME (Seconds since Epoch)
# $6=BACKUP FINISH TIME (Seconds since Epoch)
# $7=BACKUP TOTAL TIME (Seconds between Start and Finish)
# $8=BACKUP FILENAME (Filename)
# $9=BACKUP FILESIZE
# $10=HASH (If CHECKSUM enabled)
# $11=MOVE_EXIT_CODE

echo "---------Running Uptime Kuma ping---------"
if [ "$1" != "0" ]; then
  echo "Backup failed with exit code $1 (EXIT_CODE)"
  exit $1
fi

if [ "${11}" != "0" ]; then
  echo "Backup failed with exit code ${11} (MOVE_EXIT_CODE)"
  exit ${11}
fi

DB_PREFIX=$(env | grep -E "^DB[0-9]+_HOST" | grep -E "$3" | cut -d '_' -f1)

UPTIME_KUMA_ENV_NAME="${DB_PREFIX}_UPTIME_KUMA_URL"
UPTIME_KUMA_URL=${!UPTIME_KUMA_ENV_NAME}

if [ -z "$UPTIME_KUMA_URL" ]; then
  echo "Uptime Kuma not configured for $DB_PREFIX."
  exit 0
fi

curl $UPTIME_KUMA_URL

echo "Uptime Kuma ping success"
exit 0

If all the DBXX_ was exposed automatically to the pre/post scripts, it would make life easier