#!/bin/bash
set -euo pipefail

tmpfile=`mktemp`

(

cat /etc/prometheus/conf.d/*.conf
echo "alerting:"
echo "  alertmanagers:"
(cat /etc/prometheus/conf.d/alerting/*.conf 2> /dev/null | sed "s/^/  /") || echo ""

echo "scrape_configs:"
cat /etc/prometheus/conf.d/scrape_configs/*.conf

) > $tmpfile

chmod 0644 $tmpfile
mv $tmpfile /etc/prometheus/prometheus.yml
/usr/bin/systemctl reload prometheus