Add local check for moodle database

checkmk/custom-files/local/monitor_moodle_db

+#!/bin/bash
+
+FAILED_ATTEMPTS=$(sudo -u postgres -- psql -qtAX -d moodle -c "SELECT countfailed FROM mdl_block_opencast_uploadjob ORDER BY timecreated DESC limit 1;")
+
+echo "P watch_failed_video_upload_attempts failed_attempts=$FAILED_ATTEMPTS;1:;2: moodle_failed_video_upload_to_opencast"

checkmk/debian/monitor_moodle_db.sls

+hsh_checkmk_monitor_moodle_db_local:
+  file.managed:
+    - name: /usr/lib/check_mk_agent/local/monitor_moodle_db
+    - source: salt://checkmk/custom-files/local/monitor_moodle_db
+    - mode: 755
+    - user: root
+    - group: root