1 files changed, 63 insertions, 0 deletions
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")