Scripts to generate NTP Visualizations and pruning old stats files.

ntpviz.service

[Unit]
Description=Generate ntpviz webpage and plots
Documentation=man:ntpviz(1)
ConditionACPower=true

[Service]
User=ntp
Group=ntp
Type=oneshot
ExecStart=/usr/local/bin/ntpviz --name %H -d /var/log.hdd/ntpstats/ -o /var/www/ntpviz
ExecStartPost=/usr/local/bin/ntpviz_prune

# Hardening taken from logrotate.service
PrivateDevices=true
PrivateTmp=true
ProtectControlGroups=true
ProtectKernelModules=true
ProtectSystem=full
RestrictRealtime=true

ntpviz.timer

[Unit]
Description=Daily ntpviz generation
Documentation=man:ntpviz(1)

[Timer]
OnCalendar=daily
AccuracySec=12h
Persistent=true

[Install]
WantedBy=timers.target

ntpviz_prune.sh

#! /bin/bash

echo "Pruning old and compressed ntpstats files."

# Prune logs in ramdisk over a day old
find /var/log/ntpstats/ -type f -mtime +1 | sort | while read FILENAME
do
  echo "Pruning '$FILENAME' due to age."
  rm $FILENAME
done

# Prune logs on disk over a week old
find /var/log.hdd/ntpstats/ -type f -mtime +7 | sort | while read FILENAME
do
  echo "Pruning '$FILENAME' due to age."
  rm $FILENAME
done

# Prune uncompressed logs that have a compressed copy
find /var/log.hdd/ntpstats/ -type f -name "*.gz" | sort | while read FILENAME
do
  BASE=${FILENAME%.gz}
  if [[ -f $BASE ]]; then
    echo "Pruning '$BASE' since '$FILENAME' exists."
    rm $BASE
  fi
done

echo "Done"