42 lines
1.7 KiB
Bash
Executable File
42 lines
1.7 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
#Author: Long Chen
|
|
#Date: 25/01/2017
|
|
#Description: A script to send SSL certificates expiry date to zabbix with zabbix sender
|
|
#Requires: zabbix sender, openssl client, jq - https://stedolan.github.io/jq/
|
|
#Set up cron job to run hourly, example setup below:
|
|
#SHELL=/bin/bash
|
|
#PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/lib/zabbix/externalscripts
|
|
# SSL certificates monitoring, run hourly
|
|
#0 * * * * sslCertExpiryCheck.sh DomainGroup1 ZabbixHost1 &>/dev/null
|
|
#5 * * * * sslCertExpiryCheck.sh DomainGroup2 ZabbixHost2 &>/dev/null
|
|
|
|
# Query domains in a group
|
|
DOMAIN_GROUP=$1
|
|
ZABBIX_HOST="$2"
|
|
SCRIPT_DIR="$( cd "$( dirname "$0" )" && pwd )"
|
|
ALL_DOMAINS=$SCRIPT_DIR"/ssl/sslCertDomains.json"
|
|
QUERY_DOMAINS=$(cat $ALL_DOMAINS | jq --arg DOMAIN_GROUP $DOMAIN_GROUP -r '.[$DOMAIN_GROUP][] | .domain.name + "-" + .domain.port' | xargs 2>/dev/null)
|
|
|
|
get_SSL_Certs_Expirydate() {
|
|
for domain in $QUERY_DOMAINS; do
|
|
NAME=${domain%-*}
|
|
PORT=${domain##*-}
|
|
expiry_date=$(echo QUIT | timeout 3 openssl s_client -host "$NAME" -port "$PORT" -servername "$NAME" -showcerts </dev/null 2>/dev/null | sed -n '/BEGIN CERTIFICATE/,/END CERT/p' | openssl x509 -text 2>/dev/null | sed -n 's/ *Not After : *//p')
|
|
if [ -n "$expiry_date" ]; then
|
|
expiry_date_unix=$(date '+%s' --date "$expiry_date")
|
|
else
|
|
expiry_date_unix=0
|
|
fi
|
|
echo "\"$ZABBIX_HOST\""" ssl.cert.expirydate["${NAME}-${PORT}"] "$expiry_date_unix
|
|
done
|
|
}
|
|
|
|
result=$(get_SSL_Certs_Expirydate | /usr/bin/zabbix_sender -c /etc/zabbix/zabbix_agentd.conf -i - 2>&1)
|
|
response=$(echo "$result" | awk -F ';' '$1 ~ /^info/ && match($1,/[0-9].*$/) {sum+=substr($1,RSTART,RLENGTH)} END {print sum}')
|
|
if [ -n "$response" ]; then
|
|
echo "$response"
|
|
else
|
|
echo "$result"
|
|
fi
|