Munin contributed plugins

#!/bin/sh

# -*- sh -*-

: << EOF

=head1 NAME

lvm_ - Wildcard plugin for monitoring disk usage on LVM. Each Volume Group is graphed separately.

=head1 CONFIGURATION

This plugin needs to run as the root user in order to have permission to run lvs and vgs

  [lvm_*]

    user root

=head1 AUTHOR

=over 4

=item * PatrickDK (Original Author)

=item * Niall Donegan

=back

=head1 LICENSE

Unknown license

=head1 MAGIC MARKERS

=begin comment

These magic markers are used by munin-node-configure when installing

munin-node.

=end comment

  #%# family=auto

  #%# capabilities=autoconf suggest

=cut

EOF

. $MUNIN_LIBDIR/plugins/plugin.sh

if [ "$1" = "autoconf" ]; then

    if ! command -v lvs >/dev/null; then

        echo "no (lvs not found)"

    elif ! command -v vgs >/dev/null; then

        echo "no (vgs not found)"

    else

        echo "yes"

    fi

    exit 0

fi

if [ "$1" = "suggest" ]; then

	vgs -o vg_name --noheadings | sed -e 's/\ *//'

	exit 0

fi

vg=`echo $0 | awk '{ sub(".*lvm_","",\$1); print \$1; }'`

clean_name() {

    echo "$(clean_fieldname "$1")"

}

if [ "$1" = "config" ]; then

        echo "graph_title Logical Volume Usage($vg)"

        echo 'graph_args --base 1024 -l 0'

        echo 'graph_category disk'

        echo 'graph_info This graph shows disk usage on the machine.'

        echo "free.label free"

        echo "free.draw AREA"

        lvs --units b --nosuffix --noheadings | grep "$vg" | while read i; do

                name=`clean_name $i`

                echo -n "$name.label "

                echo $i | awk '{ print $1 }'

                echo "$name.draw STACK"

        done

        exit 0

fi

i=`vgs --units b --nosuffix --noheadings | grep "$vg"`

echo -n "free.value "

echo $i | awk '{ print $7 }'

lvs --units b --nosuffix --noheadings | grep "$vg" | while read i; do

        name=`clean_name $i`

        echo -n "$name.value "

        echo $i | awk '{ print $4 }'

done