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