Install script for network size metric

pricenode/collectd.conf.snippet

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+LoadPlugin exec
+
+<Plugin exec>
+	Exec "__USER_GROUP__" "__SCRAPERSCRIPT__"
+</Plugin>

pricenode/install_networksize_debian.sh

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+#!/bin/sh
+set -e
+
+echo "[*] Network Size Monitoring installation script"
+
+##### change paths if necessary for your system
+
+ROOT_USER=root
+
+SCRAPER_HOME=/journalreader
+SCRAPER_USER=journalreader
+SCRAPER_GROUP=systemd-journal
+
+#####
+echo "[*] Checking environment..."
+if [ ! -f "/etc/collectd/collectd.conf" ]; then
+	echo 'Collectd is not installed. Did you do the install_monitoring_debian.sh?'
+	echo 'Exiting...'
+	exit
+fi
+
+echo "[*] Creating journal reader user"
+sudo -H -i -u "${ROOT_USER}" useradd -d "${SCRAPER_HOME}" -G "${SCRAPER_GROUP}" "${SCRAPER_USER}"
+sudo -H -i -u "${ROOT_USER}" mkdir -p "${SCRAPER_HOME}"
+sudo -H -i -u "${ROOT_USER}" chown "${SCRAPER_USER}":"${SCRAPER_GROUP}" ${SCRAPER_HOME}
+
+echo "[*] Installing journal parser script"
+curl -s https://raw.githubusercontent.com/bisq-network/bisq/master/pricenode/journalscraper.sh > /tmp/journalscraper.sh
+sudo -H -i -u "${ROOT_USER}" install -c -o "${SCRAPER_USER}" -g "${SCRAPER_GROUP}" -m 744 /tmp/journalscraper.sh "${SCRAPER_HOME}/scraperscript.sh"
+
+echo "[*] Installing collectd config"
+curl -s https://raw.githubusercontent.com/bisq-network/bisq/master/pricenode/collectd.conf.snippet > /tmp/collectd.conf.snippet
+sudo -H -i -u "${ROOT_USER}" tee -a /etc/collectd/collectd.conf < /tmp/collectd.conf.snippet
+sudo -H -i -u "${ROOT_USER}" sed -i -e "s/__USER_GROUP__/${SCRAPER_USER}:${SCRAPER_GROUP}/" /etc/collectd/collectd.conf
+sudo -H -i -u "${ROOT_USER}" sed -i -e "s!__SCRAPERSCRIPT__!${SCRAPER_HOME}/scraperscript.sh!" /etc/collectd/collectd.conf
+
+sudo -H -i -u "${ROOT_USER}" systemctl enable collectd.service
+
+echo "[*] Restarting services"
+sudo -H -i -u "${ROOT_USER}" systemctl restart collectd.service
+
+echo '[*] Done!'

pricenode/journalscraper.sh

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+#!/bin/sh
+
+HOSTNAME="${COLLECTD_HOSTNAME:-localhost}"
+INTERVAL=750
+
+last=$(date +"%F %T" -d "$INTERVAL seconds ago")
+while true;
+do
+	now=$(date +"%F %T")
+
+	journalctl -u bisq --since="$last" --until="$now" | grep -Eo "getAllMarketPrices.*bisq/[0-9].[0-9].[0-9]" | cut -d / -f 2 | sort | uniq -c | while read -r line; do
+		number=$(echo "${line}" | cut -d ' ' -f 1);
+		version=$(echo "${line}" | cut -d \  -f 2);
+		version=${version//./_};
+		echo "PUTVAL $HOSTNAME/requestsPer750Seconds/gauge-v$version interval=$INTERVAL N:$number";
+	done
+	last=$now
+
+	sleep $INTERVAL
+done