From b408390ae9311b7d703ce57c25a78dce23c31b16 Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Wed, 10 Jun 2015 15:35:13 +0200
Subject: Configure munin nodes & master.

Interhost communications are protected by stunnel4.  The graphs are only
visible on the master itself, and content is generated by Fast CGI.
---
 .../etc/logcheck/ignore.d.server/common-local      |   2 +
 .../usr/local/share/munin/plugins/dovecot_logins   | 119 ++++++++++++++++++
 .../usr/local/share/munin/plugins/dovecot_stats_   | 135 +++++++++++++++++++++
 .../usr/local/share/munin/plugins/dovecot_who      |  43 +++++++
 .../local/share/munin/plugins/postfix_mailqueue_   |  57 +++++++++
 .../local/share/munin/plugins/postfix_mailvolume2  |  62 ++++++++++
 .../usr/local/share/munin/plugins/postfix_sasl_    |  63 ++++++++++
 .../usr/local/share/munin/plugins/postfix_stats_   | 113 +++++++++++++++++
 8 files changed, 594 insertions(+)
 create mode 100755 roles/common/files/usr/local/share/munin/plugins/dovecot_logins
 create mode 100755 roles/common/files/usr/local/share/munin/plugins/dovecot_stats_
 create mode 100755 roles/common/files/usr/local/share/munin/plugins/dovecot_who
 create mode 100755 roles/common/files/usr/local/share/munin/plugins/postfix_mailqueue_
 create mode 100755 roles/common/files/usr/local/share/munin/plugins/postfix_mailvolume2
 create mode 100755 roles/common/files/usr/local/share/munin/plugins/postfix_sasl_
 create mode 100755 roles/common/files/usr/local/share/munin/plugins/postfix_stats_

(limited to 'roles/common/files')

diff --git a/roles/common/files/etc/logcheck/ignore.d.server/common-local b/roles/common/files/etc/logcheck/ignore.d.server/common-local
index 887688a..67e9335 100644
--- a/roles/common/files/etc/logcheck/ignore.d.server/common-local
+++ b/roles/common/files/etc/logcheck/ignore.d.server/common-local
@@ -31,3 +31,5 @@
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ ansible-([_a-z]+|<stdin>): Invoked with
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ (sympa\((command|distribute)\)|wwsympa|archived|bounced|bulk|task_manager)\[[[:digit:]]+\]: (info|notice)\s
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ wwsympa\[[[:digit:]]+\]: err .* main::check_action_parameters\(\) user not logged in$
+^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ rrdcached\[[[:digit:]]+\]: (flushing old values|rotating journals|started new journal /\S+$|removing old journal /\S+$)
+^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ rrdcached\[[[:digit:]]+\]: queue_thread_main: rrd_update_r \(([^)]+)\) failed with status -1. \(opening '\1': No such file or directory\)
diff --git a/roles/common/files/usr/local/share/munin/plugins/dovecot_logins b/roles/common/files/usr/local/share/munin/plugins/dovecot_logins
new file mode 100755
index 0000000..09b79d9
--- /dev/null
+++ b/roles/common/files/usr/local/share/munin/plugins/dovecot_logins
@@ -0,0 +1,119 @@
+#!/bin/sh
+
+# Munin plugin for monitoring Dovecot logins and IMAP throughput.
+# Copyright © 2015 Guilhem Moulin <guilhem@fripost.org>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+PATH=/usr/bin:/bin:/usr/sbin:/sbin
+
+LOGFILE="/var/log/${logfile:-mail.log}"
+STATEFILE="$MUNIN_PLUGSTATE/${0##*/}.offset"
+
+. $MUNIN_LIBDIR/plugins/plugin.sh
+is_multigraph
+
+case "${1:-}" in
+    config) cat <<- EOF
+		multigraph dovecot_login_status
+		graph_title Dovecot login status
+		graph_vlabel logins per \${graph_period}
+		graph_args --base 1000 -l 0
+		graph_scale no
+		graph_period minute
+		graph_category dovecot
+		successful.label auth successful
+		successful.type DERIVE
+		successful.draw AREA
+		successful.min 0
+		failed.label auth failed
+		failed.type DERIVE
+		failed.draw STACK
+		failed.min 0
+		noauth.label no auth attempt
+		noauth.type DERIVE
+		noauth.draw STACK
+		noauth.min 0
+
+		multigraph dovecot_login_types
+		graph_title Dovecot login types
+		graph_vlabel logins per \${graph_period}
+		graph_args --base 1000 -l 0
+		graph_scale no
+		graph_period minute
+		graph_category dovecot
+		imap.label IMAP
+		imap.type DERIVE
+		imap.draw AREA
+		imap.min 0
+		pop3.label POP3
+		pop3.type DERIVE
+		pop3.draw STACK
+		pop3.min 0
+		managesieve.label managesieve
+		managesieve.type DERIVE
+		managesieve.draw STACK
+		managesieve.min 0
+
+		multigraph dovecot_imap_throughput
+		graph_title Dovecot IMAP throughput
+		graph_vlabel bytes per \${graph_period}
+		graph_args --base 1024 -l 0
+		graph_scale yes
+		graph_period minute
+		graph_category dovecot
+		read.label read
+		read.type DERIVE
+		read.min 0
+		written.label written
+		written.type DERIVE
+		written.min 0
+	EOF
+    exit 0
+    ;;
+esac
+
+if [ ! -f "$LOGFILE" ]; then
+    for field in successful failed noauth imap pop3 managesieve read written; do
+        echo $field.value U
+    done
+    exit 0;
+fi
+
+tmpfile="$(mktemp --tmpdir)"
+trap 'rm -f "$tmpfile"' EXIT
+
+logtail -f"$LOGFILE" -o"$STATEFILE" | sed -nr "s#^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ dovecot: ##p" >"$tmpfile"
+
+sum() {
+    awk 'BEGIN{x=0} {x+=$0} END{print x}'
+}
+
+prefix="^(pop3|imap|managesieve)-login"
+echo multigraph dovecot_login_status
+echo successful.value $(grep -Ec "$prefix: Login: user=<[^>]+>,\s" "$tmpfile")
+echo failed.value    $(sed -nr "s#$prefix: Aborted login \(auth failed, ([[:digit:]]+) attempts in [[:digit:]]+ secs\): user=<[^>]*>, .*#\2#p" "$tmpfile" | sum)
+echo noauth.value    $(grep -Ec "$prefix: Aborted login \(no auth attempts in [[:digit:]]+ secs\): user=<>,\s" "$tmpfile")
+
+
+echo multigraph dovecot_login_types
+for type in imap pop3 managesieve; do
+    echo $type.value $(grep -Ec "^$type-login:\s" "$tmpfile")
+done
+
+
+regexp="^imap\([-_.@[:alnum:]]+\): .* in=([[:digit:]]+) out=([[:digit:]]+)$"
+echo multigraph dovecot_imap_throughput
+echo read.value    $(sed -nr "s#$regexp#\1#p" "$tmpfile" | sum)
+echo written.value $(sed -nr "s#$regexp#\2#p" "$tmpfile" | sum)
diff --git a/roles/common/files/usr/local/share/munin/plugins/dovecot_stats_ b/roles/common/files/usr/local/share/munin/plugins/dovecot_stats_
new file mode 100755
index 0000000..7f0f51a
--- /dev/null
+++ b/roles/common/files/usr/local/share/munin/plugins/dovecot_stats_
@@ -0,0 +1,135 @@
+#!/bin/bash
+: <<=cut
+
+=head1 NAME
+
+dovecot_stats_ - Munin plugin to display statistics for the dovecot mail server
+
+=head1 CONFIGURATION
+
+This plugin must be run with permissions to run "doveadm". That usually means root, but to test, run the following as any user:
+
+  doveadm who
+
+If you get a permission denied message, check the permissions on the socket mentioned in the error line.
+
+=head1 MAGIC MARKERS
+
+   #%# family=contrib
+   #%# capability=autoconf suggest
+
+=head1 AUTHOR
+
+Paul Saunders <darac+munin@darac.org.uk>
+
+=cut
+
+. $MUNIN_LIBDIR/plugins/plugin.sh
+is_multigraph
+
+if [[ "$1" == "autoconf" ]]; then
+    if [[ -x /usr/bin/doveadm ]]; then
+        echo yes
+    else
+        echo no
+    fi
+    exit 0
+fi
+
+if [[ "$1" == "suggest" ]]; then
+    doveadm stats dump domain|awk 'NR!=1 {print $1}'
+    exit 0
+fi
+
+domain=$(basename $0)
+domain=${domain#dovecot_stats_}
+
+if [[ -z $domain ]]; then
+   exit 1
+fi
+
+if [[ "$1" == "config" ]]; then
+    cat <<EOF
+multigraph dovecot_cpu_${domain//\./_}
+graph_title Dovecot CPU Usage for $domain
+graph_vlabel Seconds
+graph_category dovecot
+user_cpu.label User CPU
+user_cpu.type DERIVE
+user_cpu.min 0
+user_cpu.cdef user_cpu,1000000,/
+sys_cpu.label System CPU
+sys_cpu.type DERIVE
+sys_cpu.min 0
+sys_cpu.cdef sys_cpu,1000000,/
+
+multigraph dovecot_system_${domain//\./_}
+graph_title Dovecot System Usage for $domain
+graph_category dovecot
+min_faults.label Minor page faults
+min_faults.type DERIVE
+min_faults.min 0
+maj_faults.label Major page faults
+maj_faults.type DERIVE
+maj_faults.min 0
+vol_cs.label Voluntary context switches
+vol_cs.type DERIVE
+vol_cs.min 0
+invol_cs.label Involuntary context switches
+invol_cs.type DERIVE
+invol_cs.min 0
+read_count.label read() syscalls
+read_count.type DERIVE
+read_count.min 0
+write_count.label write() syscalls
+write_count.type DERIVE
+write_count.min 0
+
+multigraph dovecot_mail_${domain//\./_}
+graph_title Dovecot Mail Access for $domain
+graph_category dovecot
+num_logins.label Logins
+num_logins.type DERIVE
+num_logins.min 0
+num_cmds.label Commands
+num_cmds.type DERIVE
+num_cmds.min 0
+mail_lookup_path.label Path Lookups
+mail_lookup_path.type DERIVE
+mail_lookup_path.min 0
+mail_lookup_attr.label Attr lookups
+mail_lookup_attr.type DERIVE
+mail_lookup_attr.min 0
+mail_read_count.label Messages read
+mail_read_count.type DERIVE
+mail_read_count.min 0
+mail_cache_hits.label Cache hits
+mail_cache_hits.type DERIVE
+mail_cache_hits.min 0
+EOF
+    exit 0
+fi
+
+# Fetch data
+# Gawk script cadged from http://awk.info/?JanisP
+doveadm stats dump domain domain=$domain | gawk -F\\t -v cols="user_cpu sys_cpu min_faults maj_faults vol_cs invol_cs read_count write_count num_logins num_cmds mail_lookup_path mail_lookup_attr mail_read_count mail_cache_hits " -v domain=${domain//\./_} '
+    BEGIN {
+        n=split(cols,col," ")
+        for (i=1; i<=n; i++) s[col[i]]=i
+    }
+    NR==1 {
+        for (f=1;f<=NF; f++)
+            if ($f in s) c[s[$f]]=f
+        next
+    }
+    { for (f=1; f<=n; f++) {
+        if (col[f] == "user_cpu") printf ("\nmultigraph dovecot_cpu_%s\n", domain)
+        if (col[f] == "min_faults") printf ("\nmultigraph dovecot_system_%s\n", domain)
+        if (col[f] == "num_logins") printf ("\nmultigraph dovecot_mail_%s\n", domain)
+        if (col[f] == "user_cpu" || col[f] == "sys_cpu")
+            printf("%s.value %d\n",col[f],$c[f] * 1000000)
+        else
+            printf("%s.value %d\n",col[f],$c[f])
+      }
+    }
+'
diff --git a/roles/common/files/usr/local/share/munin/plugins/dovecot_who b/roles/common/files/usr/local/share/munin/plugins/dovecot_who
new file mode 100755
index 0000000..fe3c743
--- /dev/null
+++ b/roles/common/files/usr/local/share/munin/plugins/dovecot_who
@@ -0,0 +1,43 @@
+#!/bin/sh
+
+# Munin plugin for monitoring Dovecot IMAP connections and unique users.
+# Copyright © 2015 Guilhem Moulin <guilhem@fripost.org>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+PATH=/usr/bin:/bin:/usr/sbin:/sbin
+set -u
+
+case "${1:-}" in
+    config) cat <<- EOF
+		graph_title Dovecot concurrent IMAP usage
+		graph_args --base 1000 -l 0
+		graph_scale no
+		graph_category dovecot
+		connections.label connections
+		connections.min 0
+		users.label unique users
+		users.min 0
+	EOF
+    exit 0
+    ;;
+esac
+
+tmpfile="$(mktemp --tmpdir)"
+trap 'rm -f "$tmpfile"' EXIT
+
+doveadm -f flow who -1 | sed -nr 's/^username=(\S+)\s+proto=imap\s.*/\1/p' >"$tmpfile"
+
+echo connections.value $(wc -l <"$tmpfile")
+echo users.value       $(sort -u "$tmpfile" | wc -l)
diff --git a/roles/common/files/usr/local/share/munin/plugins/postfix_mailqueue_ b/roles/common/files/usr/local/share/munin/plugins/postfix_mailqueue_
new file mode 100755
index 0000000..31b6269
--- /dev/null
+++ b/roles/common/files/usr/local/share/munin/plugins/postfix_mailqueue_
@@ -0,0 +1,57 @@
+#!/bin/sh
+
+# Munin plugin for monitoring the Postfix mail queue in multi-instance
+# systems.  Symlink/rename to 'postfix_mailqueue_$SPOOLDIR'.
+# Copyright © 2015 Guilhem Moulin <guilhem@fripost.org>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+PATH=/usr/bin:/bin:/usr/sbin:/sbin
+
+name="${0##*/}"
+[ "${name#postfix_mailqueue_}" != "$name" ] && postfix="${name#postfix_mailqueue_}" || postfix=
+SPOOLDIR="/var/spool/${postfix:-postfix}"
+
+. $MUNIN_LIBDIR/plugins/plugin.sh
+
+case "${1:-}" in
+    config) cat <<- EOF
+		graph_title Postfix mailqueue ($([ -n "$postfix" -a "$postfix" != postfix ] && echo "'${postfix#postfix-}'" || echo default) instance)
+		graph_vlabel Mails in queue
+		graph_args --base 1000 -l 0
+		graph_scale no
+		graph_category postfix
+		graph_total Total
+		active.label active
+		deferred.label deferred
+		maildrop.label maildrop
+		incoming.label incoming
+		corrupt.label corrupt
+		hold.label held
+	EOF
+    for field in active deferred maildrop incoming corrupt hold; do
+        print_warning "$field"
+        print_critical "$field"
+    done
+    exit 0
+    ;;
+esac
+
+for field in active deferred maildrop incoming corrupt hold; do
+    if [ -d "$SPOOLDIR/$field" ]; then
+        echo $field.value $(find "$SPOOLDIR/$field" -type f | wc -l)
+    else
+        echo $field.value U
+    fi
+done
diff --git a/roles/common/files/usr/local/share/munin/plugins/postfix_mailvolume2 b/roles/common/files/usr/local/share/munin/plugins/postfix_mailvolume2
new file mode 100755
index 0000000..d16d88e
--- /dev/null
+++ b/roles/common/files/usr/local/share/munin/plugins/postfix_mailvolume2
@@ -0,0 +1,62 @@
+#!/bin/sh
+
+# Munin plugin for monitoring Postfix per-instance mail throughput.
+# Copyright © 2015 Guilhem Moulin <guilhem@fripost.org>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+PATH=/usr/bin:/bin:/usr/sbin:/sbin
+set -u
+
+LOGFILE="/var/log/${logfile:-mail.log}"
+STATEFILE="$MUNIN_PLUGSTATE/${0##*/}.offset"
+
+case "${1:-}" in
+    config) cat <<- EOF
+		graph_title Postfix per-instance bytes throughput
+		graph_vlabel bytes per \${graph_period}
+		graph_args --base 1024 -l 0
+		graph_scale yes
+		graph_period minute
+		graph_category postfix
+	EOF
+    if [ $(echo "${postmulti:-postfix}" | wc -w) -gt 1 ]; then
+        echo graph_total total throughput
+    fi
+    for postfix in ${postmulti:-postfix}; do
+        echo "${postfix}_volume.label" "$postfix throughput"
+        echo "${postfix}_volume.type"  DERIVE
+        echo "${postfix}_volume.min"   0
+    done
+    exit 0
+    ;;
+esac
+
+if [ ! -f "$LOGFILE" ]; then
+    for postfix in ${postmulti:-postfix}; do
+        echo "${postfix}_volume.value U"
+    done
+    exit 0;
+fi
+
+tmpfile="$(mktemp --tmpdir)"
+trap 'rm -f "$tmpfile"' EXIT
+
+logtail -f"$LOGFILE" -o"$STATEFILE" >"$tmpfile"
+
+for postfix in ${postmulti:-postfix}; do
+    echo -n "${postfix}_volume.value "
+    sed -nr "s#^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ $postfix/qmgr\[[[:digit:]]+\]: [[:xdigit:]]+: from=<[^>]*>, size=([[:digit:]]+), nrcpt=[[:digit:]]+ \(queue active\)\$#\1#p" "$tmpfile" \
+    | awk 'BEGIN{x=0} {x+=$0} END{print x}'
+done
diff --git a/roles/common/files/usr/local/share/munin/plugins/postfix_sasl_ b/roles/common/files/usr/local/share/munin/plugins/postfix_sasl_
new file mode 100755
index 0000000..8dc1219
--- /dev/null
+++ b/roles/common/files/usr/local/share/munin/plugins/postfix_sasl_
@@ -0,0 +1,63 @@
+#!/bin/sh
+
+# Munin plugin for monitoring Postfix SASL logins.  Symlink/rename to
+# 'postfix_sasl_$SYSLOGNAME'.
+# Copyright © 2015 Guilhem Moulin <guilhem@fripost.org>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+PATH=/usr/bin:/bin:/usr/sbin:/sbin
+set -u
+
+LOGFILE="/var/log/${logfile:-mail.log}"
+STATEFILE="$MUNIN_PLUGSTATE/${0##*/}.offset"
+
+name="${0##*/}"
+[ "${name#postfix_sasl_}" != "$name" ] && postfix="${name#postfix_sasl_}" || postfix=
+
+case "${1:-}" in
+    config) cat <<- EOF
+		graph_title Postfix SASL ($([ -n "$postfix" -a "$postfix" != postfix ] && echo "'${postfix#postfix-}'" || echo default) instance)
+		graph_vlabel logins per \${graph_period}
+		graph_args --base 1000 -l 0
+		graph_scale no
+		graph_period minute
+		graph_category postfix
+		successful.label successful
+		successful.type DERIVE
+		successful.draw AREA
+		successful.min 0
+		failed.label failed
+		failed.type DERIVE
+		failed.draw STACK
+		failed.min 0
+	EOF
+    exit 0
+    ;;
+esac
+
+if [ ! -f "$LOGFILE" ]; then
+    for postfix in ${postmulti:-postfix}; do
+        echo "${postfix}_volume.value U"
+    done
+    exit 0;
+fi
+
+tmpfile="$(mktemp --tmpdir)"
+trap 'rm -f "$tmpfile"' EXIT
+
+logtail -f"$LOGFILE" -o"$STATEFILE" | sed -nr "s#^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ $postfix/smtpd\[[[:digit:]]+\]: ##p" >"$tmpfile"
+
+echo successful.value $(grep -Ec "^warning: [-._[:alnum:]]+\[[.[:digit:]]+\]: SASL \S+ authentication failed(:.*)?$" "$tmpfile")
+echo failed.value     $(grep -Ec "^[[:xdigit:]]{10}: client=\S+, sasl_method=\S+, sasl_username=" "$tmpfile")
diff --git a/roles/common/files/usr/local/share/munin/plugins/postfix_stats_ b/roles/common/files/usr/local/share/munin/plugins/postfix_stats_
new file mode 100755
index 0000000..5678870
--- /dev/null
+++ b/roles/common/files/usr/local/share/munin/plugins/postfix_stats_
@@ -0,0 +1,113 @@
+#!/bin/sh
+
+# Munin plugin for monitoring Postfix per-service and per-instance
+# usage.  Symlink/rename to 'postfix_sasl_$SERVICE_$SYSLOGNAME'.
+# Copyright © 2015 Guilhem Moulin <guilhem@fripost.org>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+PATH=/usr/bin:/bin:/usr/sbin:/sbin
+set -u
+
+LOGFILE="/var/log/${logfile:-mail.log}"
+STATEFILE="$MUNIN_PLUGSTATE/${0##*/}.offset"
+
+name="${0##*/}"
+name="${name#postfix_stats_}"
+
+if [ "${name#postscreen_}" != "$name" ]; then
+    postfix="${name#postscreen_}"
+    service=postscreen
+    fields='connected accepted passed'
+elif [ "${name#smtpd_}" != "$name" ]; then
+    postfix="${name#smtpd_}"
+    service=smtpd
+    fields='connected accepted queued'
+elif [ "${name#qmgr_}" != "$name" ]; then
+    postfix="${name#qmgr_}"
+    service=qmgr
+    fields='queued'
+elif [ "${name#smtp_}" != "$name" ]; then
+    postfix="${name#smtp_}"
+    service=smtp
+    fields='sent deliverable deferred undeliverable bounced'
+elif [ "${name#lmtp_}" != "$name" ]; then
+    postfix="${name#lmtp_}"
+    service=lmtp
+    fields='sent deliverable deferred undeliverable bounced'
+elif [ "${name#pipe_}" != "$name" ]; then
+    postfix="${name#pipe_}"
+    service=pipe
+    fields='sent deliverable deferred undeliverable bounced'
+fi
+
+case "${1:-}" in
+    config) cat <<- EOF
+		graph_title Postfix $service message throughput ($([ -n "$postfix" -a "$postfix" != postfix ] && echo "'${postfix#postfix-}'" || echo default) instance)
+		graph_vlabel mails per \${graph_period}
+		graph_args --base 1000 -l 0
+		graph_scale no
+		graph_period minute
+		graph_category postfix
+	EOF
+    for field in $fields; do
+        echo "$field.label $field"
+        echo "$field.type DERIVE"
+        echo "$field.draw AREA"
+        echo "$field.min 0"
+    done
+    exit 0
+    ;;
+esac
+
+if [ ! -f "$LOGFILE" ]; then
+    for field in $fields; do
+        echo "$field.value U"
+    done
+    exit 0;
+fi
+
+tmpfile="$(mktemp --tmpdir)"
+trap 'rm -f "$tmpfile"' EXIT
+
+logtail -f"$LOGFILE" -o"$STATEFILE" | sed -nr "s#^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ $postfix/$service\[[[:digit:]]+\]: ##p" >"$tmpfile"
+
+case "$service" in
+    postscreen)
+        connected=$(grep -Ec "^CONNECT from\s"                 "$tmpfile")
+        rejected=$( grep -Ec "^NOQUEUE: reject:\s"             "$tmpfile")
+        passed=$(   grep -Ec "^(PASS (OLD|NEW)|WHITELISTED)\s" "$tmpfile")
+        echo connected.value $connected
+        echo accepted.value $(($rejected + $passed))
+        echo passed.value   $passed
+    ;;
+    smtpd)
+        connected=$(grep -Ec "^connect from\s"         "$tmpfile")
+        rejected=$( grep -Ec "^NOQUEUE: reject:\s"     "$tmpfile")
+        queued=$(   grep -Ec "^[[:xdigit:]]+: client=" "$tmpfile")
+        echo connected.value $connected
+        echo accepted.value  $(($rejected + $queued))
+        echo queued.value    $queued
+    ;;
+    qmgr)
+        queued=$(grep -Ec "^[[:xdigit:]]+: from=<\S+>, .*\(queue active\)$" "$tmpfile")
+        echo queued.value $queued
+    ;;
+    smtp|lmtp|pipe)
+        for field in $fields; do
+            v=$(grep -Ec "^[[:xdigit:]]+:( [^ =]+=\S+,)+ status=$field(\s.*)?$" "$tmpfile")
+            echo $field.value $v
+        done
+    ;;
+esac
-- 
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