Munin contributed plugins

#!/bin/sh

#

# Plugin to show Postfix statistics - needs pflogsumm

#

# Contributed by David Obando (david@cryptix.de) - 16.04.2007

# Rewrited by Cristian Deluxe (me@cristiandeluxe.com) - 02.11.2016

#

#

# Example config for Ubuntu (You need: apt-get install pflogsumm)

#

# [postfix_stats]

# env.logfile /var/log/syslog

# env.logfile2 /var/log/syslog.1

# env.pflogsumm pflogsumm

#

#

# Magic markers - optional - used by installation scripts and

# munin-config:

#

#%# family=contrib

#%# capabilities=autoconf

#set -xv

SYS_LOG=${logfile:-/var/log/syslog}

SYS_LOG2=${logfile2:-/var/log/syslog.0}

PFLOGSUMM=${pflogsumm:-pflogsumm.pl}

# Fields (Array to avoid code duplication)

declare -a FIELDS_ARR=("received" "delivered" "forwarded" "deferred" "bounced" "rejected" "held" "discarded")

#

# Autoconf Section

#

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

	# Try to find pflogsumm with default name

	PFLOG_EXIST=$(command -v pflogsumm.pl)

	# Try to find pflogsumm without any extension

	if [[ -z "${PFLOG_EXIST}" ]]

		then

		PFLOG_EXIST=$(command -v pflogsumm)

	fi

	if [[ -z "${PFLOG_EXIST}" ]]

		then

		echo 'no';

	else

		echo 'yes'

	fi

	exit 0;

fi

#

# Config Section

#

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

	echo 'graph_title Postfix statistics'

	echo 'graph_vlabel Postfix statistics'

	echo 'graph_category mail'

	echo 'graph_scale no'

	echo 'graph_period minute'

	echo 'graph_total Total'

	# Generate config for each field

	for i in "${FIELDS_ARR[@]}"

	do

		echo "${i}.label ${i}"

		echo "${i}.type DERIVE"

		echo "${i}.min 0"

		echo "${i}.draw AREA"

	done

	exit 0

fi

#

# Plugin Script

#

# Variable to store the pflogsumm result.

TMP_RAW=$("${PFLOGSUMM}" -d today --detail 0 --zero-fill "${SYS_LOG}" "${SYS_LOG2}")

# Parse value from Raw result

# 

# Return digit if regex are parsed correctly

#

# Return -1 if any error occurs

#

parseValue() {

	TMP_RETURN=$(echo "${TMP_RAW}" | grep -Ei '^[[:space:]]+[[:digit:]]+[[:space:]]+'"${1}"'.*$' | grep -oEi '[[:digit:]]+[[:space:]]+' | head -n 1 | sed 's: ::g')

	if [[ -z "${TMP_RETURN}" ]]

		then

		echo -1

	else

		echo "${TMP_RETURN}"

	fi

}

# Print results

for i in "${FIELDS_ARR[@]}"

do

	printf "${i}.value "

	parseValue "${i}"

done