From c3821e91656c9991c06bf395ccf63995418fbfd7 Mon Sep 17 00:00:00 2001 From: Joshua Tauberer Date: Sun, 23 Aug 2015 16:03:40 +0000 Subject: [PATCH] munin: configure the plugins better * let munin choose what it wants to monitor, it may need an update periodically * deactivate monitoring of NTP peers (this makes no sense) * deactivate monitoring of network interfaces that aren't up (also makes no sense) * we get errors in munin-node.log if we don't create /var/lib/munin-node/plugin-state/ --- setup/munin.sh | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/setup/munin.sh b/setup/munin.sh index f936e8e7..2ee09b27 100755 --- a/setup/munin.sh +++ b/setup/munin.sh @@ -33,5 +33,27 @@ EOF tools/editconf.py /etc/munin/munin-node.conf -s \ host_name=$PRIMARY_HOSTNAME +# Update the activated plugins through munin's autoconfiguration. +munin-node-configure --shell --remove-also 2>/dev/null | sh + +# Deactivate monitoring of NTP peers. Not sure why anyone would want to monitor a NTP peer. The addresses seem to change +# (which is taken care of my munin-node-configure, but only when we re-run it.) +find /etc/munin/plugins/ -lname /usr/share/munin/plugins/ntp_ -print0 | xargs -0 /bin/rm + +# Deactivate monitoring of network interfaces that are not up. Otherwise we can get a lot of empty charts. +for f in $(find /etc/munin/plugins/ \( -lname /usr/share/munin/plugins/if_ -o -lname /usr/share/munin/plugins/if_err_ -o -lname /usr/share/munin/plugins/bonding_err_ \)); do + IF=$(echo $f | sed s/.*_//); + if ! ifquery $IF >/dev/null 2>/dev/null; then + rm $f; + fi; +done + +# Create a 'state' directory. Not sure why we need to do this manually. +mkdir -p /var/lib/munin-node/plugin-state/ + +# Restart services. +restart_service munin +restart_service munin-node + # generate initial statistics so the directory isn't empty sudo -u munin munin-cron