#!/bin/bash
# -*- sh -*-
: <<EOF
=head1 NAME
df_abs - Plugin to monitor absolute disk usage
=head1 CONFIGURATION
The following configuration parameters are used by this plugin
[df_abs]
env.exclude - space separated list of file system types to exclude
env.warning - Warning percentage
env.critical - Critical percentage
env.total - Enable/Disable graph total [on|off]
=head2 DEFAULT CONFIGURATION
[df_abs]
env.exclude iso9660
env.warning 92
env.critical 98
env.total on
=head1 AUTHORS
Unknown author
=head1 LICENSE
GPLv2
=head1 BUGS
Does not handle cases where the block device is the same
for multiple mounts.
=head1 MAGIC MARKERS
#%# family=manual
#%# capabilities=autoconf
=cut
EOF
. "$MUNIN_LIBDIR/plugins/plugin.sh"
if [ "$1" = "autoconf" ]; then
echo yes
exit 0
fi
# Append $mnt in case $dev is not a real block device
get_fieldname() {
local dev="$1"
local mnt="$2"
case "$dev" in
/* )
clean_fieldname "$dev"
;;
* )
clean_fieldname "$dev $mnt"
;;
esac
}
total=${total:-on}
exclude=${exclude:-iso9660}
exclude=$(echo "$exclude" | sed -r -e 's/ +/ -x /g' -e 's/^/-x /')
if [ "$1" = "config" ]; then
echo 'graph_title Filesystem usage (in bytes)'
echo 'graph_args --base 1024 --lower-limit 0'
echo 'graph_vlabel bytes'
echo 'graph_category disk'
if [ "$total" = "on" ]; then
echo 'graph_total Total'
fi
# shellcheck disable=SC2086
df -P -l $exclude | sed 1d | grep -v "//" |
while read -r dev size used avail cap mnt; do
name="$(get_fieldname "$dev" "$mnt")"
echo "$name.label $mnt"
echo "$name.cdef $name,1024,*"
warn=$(get_warning "$name")
crit=$(get_critical "$name")
if [ -n "$warn" ]; then
echo "$name.warning $((size * warn / 100))"
fi
if [ -n "$crit" ]; then
echo "$name.critical $((size * crit / 100))"
fi
done
exit 0
fi
# shellcheck disable=SC2034,SC2086
df -P -l $exclude | sed 1d | grep -v "//" |
while read -r dev size used avail cap mnt; do
echo "$(get_fieldname "$dev" "$mnt").value $used"
done
Mini Shell