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contrib-munin/plugins/ssl/ssl_
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2017-02-23 15:31:40 +01:00

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#!/bin/bash
# -*- sh -*-
: << =cut
=head1 NAME
ssl_ - Plugin to monitor certificate expiration
=head1 CONFIGURATION
This plugin does not normally require configuration.
To set warning and critical levels do like this:
[ssl_*]
env.warning 30:
=head1 AUTHOR
Pactrick Domack
Copyright (C) 2013 Patrick Domack <patrickdk@patrickdk.com>
=head1 LICENSE
=cut
. $MUNIN_LIBDIR/plugins/plugin.sh
ARGS=${0##*ssl_}
SITE=${ARGS/_*/}
PORT=${ARGS##*_}
if [ "$PORT" = "$SITE" ]; then
PORT=443
fi
case $1 in
config)
echo "graph_title $SITE SSL Certificate Expire"
echo 'graph_args --base 1000'
echo 'graph_vlabel days left'
echo 'graph_category security'
echo "graph_info This graph shows the days left for the certificate being served by $SITE"
echo 'expire.label days'
print_warning expire
print_critical expire
exit 0
;;
esac
cert=$(echo "" | openssl s_client -CApath /etc/ssl/certs -servername "${SITE}" -connect "${SITE}:${PORT}" 2>/dev/null);
if [[ "${cert}" = *"-----BEGIN CERTIFICATE-----"* ]]; then
echo "${cert}" | openssl x509 -noout -enddate | awk -F= 'BEGIN { split("Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec", month, " "); for (i=1; i<=12; i++) mdigit[month[i]] = i; } /notAfter/ { split($0,a,"="); split(a[2],b," "); split(b[3],time,":"); datetime=b[4] " " mdigit[b[1]] " " b[2] " " time[1] " " time[2] " " time[3]; days=(mktime(datetime)-systime())/86400; print "expire.value " days; }'
fi