#!/bin/sh
# -*- sh -*-

: << =cut

=head1 NAME

apache_servers - Indicate the number of apache servers running (child process)

=head1 CONFIGURATION

 [apache_*]
 env.apuser user_running_apache (default: "www-data")
 env.binname apache_binary_name (default: "apache2")

=head1 AUTHOR

Ricardo Fraile <rfrail3@yahoo.es>

=head1 LICENSE

GPLv2

=head1 MAGICK MARKERS

 #%# family=auto
 #%# capabilities=autoconf

=cut

. "$MUNIN_LIBDIR/plugins/plugin.sh"

USR=${apuser:-www-data}
PROCS=${binname:-apache2}

if [ "$1" = "autoconf" ]; then
	echo yes
	exit 0
fi

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

    echo 'graph_title Number of apache servers running'
    echo 'graph_args --base 1000 -l 0 '
    echo 'graph_vlabel servers'
    echo 'graph_scale no'
    echo 'graph_category webserver'
    echo 'graph_info Indicate the number of apache servers running (child process).'

    echo "servers.label servers"
    echo "servers.type GAUGE"
    echo "servers.min 0"
    echo "servers.info Number of apache processes"

    exit 0
fi

process_count=$(ps auxf | grep -- "$PROCS" | grep "^$USR" | grep -v grep | wc -l)
echo "servers.value $process_count"