/
notification-to-email.sh
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/
notification-to-email.sh
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#!/bin/sh
#
# Script for email notifications (HTML format) for Icinga
# Tested on :
# - Debian GNU/Linux 8 (Jessie) with Icinga r2.6.2-1
# - Debian GNU/Linux 9 (Stretch) with exim4 and Icinga r2.11.1-1
# - Debian GNU/Linux 10 (Buster) with exim4 and Icinga r2.14.2-1
# - Debian GNU/Linux 12 (Bookworm) with exim4 and Icinga r2.14.2-1
# Put here /etc/icinga2/scripts/notification-to-email.sh
# Aleksey Maksimov <aleksey.maksimov@it-kb.ru>
#
PLUGIN_NAME="Plugin for email notifications (HTML format) for Icinga Director"
PLUGIN_VERSION="2024.05.07"
PRINTINFO=`printf "\n%s, version %s\n \n" "$PLUGIN_NAME" "$PLUGIN_VERSION"`
#
#
Usage() {
echo "$PRINTINFO"
echo "Usage: $0 [OPTIONS]
Option GNU long option Meaning
------ --------------- -------
-M --plugin-mode Plugin mode. Static value. Possible values: host-mode|service-mode
-a --notification-type Icinga Notification type (for example, from a variable \$notification.type\$)
-b --notification-autor Icinga Notification autor (for example, from a variable \$notification.author\$)
-c --notification-comment Icinga Notification comment (for example, from a variable \$notification.comment\$)
-d --long-datetime Icinga Notification date and time (for example, from a variable \$icinga.long_date_time\$)
-e --host-displayname Icinga Host name (for example, from a variable \$host.display_name\$)
-f --host-alias Icinga Host alias (for example, from a variable \$host.name\$)
-g --host-address Icinga Host address (for example, from a variable \$address\$)
-h --host-state Icinga Host last state (for example, from a variable \$host.state\$)
-i --host-output Icinga Host monitoring plugin output (for example, from a variable \$host.output\$)
-j --service-displayname Icinga Service display name (for example, from a variable \$service.display_name\$)
-k --service-desc Icinga Service alias (for example, from a variable \$service.name\$)
-l --service-state Icinga Service last state (for example, from a variable \$service.state\$ )
-m --service-output Icinga Service monitoring plugin output (for example, from a variable \$service.output\$)
-n --mail-to Email address for "To:" header (for example, from a variable \$user.email\$)
-o --mail-from Email address for "From:" header. Static value (for example, Icinga@mycorp.com)
-z --item-comment Additional item comment with custom variable from Host or Service (for example, from a variable \$host.Notification_Comment\$)
-p --icingaweb-url Icinga Web URL for link to Host or Service. Static value (for example, http://icinga.mycorp.com/icingaweb2/monitoring)
-q --help Show this message
-v --version Print version information and exit
"
}
#
# Parse arguments
#
OPTS=`getopt -o M:a:b:c:d:e:f:g:h:i:j:k:l:m:n:o:z:p:qv -l plugin-mode:,notification-type:,notification-autor:,notification-comment:,long-datetime:,host-displayname:,host-alias:,host-address:,host-state:,host-output:,service-displayname:,service-desc:,service-state:,service-output:,mail-to:,mail-from:,item-comment:,icingaweb-url:,help,version -- "$@"`
eval set -- "$OPTS"
while true; do
case $1 in
-M|--plugin-mode)
case "$2" in
"host-mode"|"service-mode") PLUGINMODE=$2 ; shift 2 ;;
*) printf "Unknown value for option %s. Use 'host-mode' or 'service-mode'\n" "$1" ; exit 1 ;;
esac ;;
-a|--notification-type)
NOTIFICATIONTYPE=$2 ; shift 2 ;;
-b|--notification-autor)
NOTIFICATIONAUTHORNAME=$2 ; shift 2 ;;
-c|--notification-comment)
NOTIFICATIONCOMMENT=$2 ; shift 2 ;;
-d|--long-datetime)
LONGDATETIME=$2 ; shift 2 ;;
-e|--host-displayname)
HOSTDISPLAYNAME=$2 ; shift 2 ;;
-f|--host-alias)
HOSTALIAS=$2 ; shift 2 ;;
-g|--host-address)
HOSTADDRESS=$2 ; shift 2 ;;
-h|--host-state)
HOSTSTATE=$2 ; shift 2 ;;
-i|--host-output)
HOSTOUTPUT=$2 ; shift 2 ;;
-j|--service-displayname)
SERVICEDISPLAYNAME=$2 ; shift 2 ;;
-k|--service-desc)
SERVICEDESC=$2 ; shift 2 ;;
-l|--service-state)
SERVICESTATE=$2 ; shift 2 ;;
-m|--service-output)
SERVICEOUTPUT=$2 ; shift 2 ;;
-n|--mail-to)
MAILTO=$2 ; shift 2 ;;
-o|--mail-from)
MAILFROM=$2 ; shift 2 ;;
-z|--item-comment)
ITEMCOMMENT=$2 ; shift 2 ;;
-p|--icingaweb-url)
ICINGAWEBURL=$2 ; shift 2 ;;
-q|--help)
Usage ; exit 0 ;;
-v|--version)
echo "$PRINTINFO" ; exit 0 ;;
--)
# no more arguments to parse
shift ; break ;;
*)
printf "\nUnrecognized option %s\n\n" "$1" ; Usage ; exit 1 ;;
esac
done
#
#
TIMETOMAIL=`echo $(date -d "$LONGDATETIME" +"%d.%m.%Y %T %Z")`
SERVICETOMAIL=`echo $SERVICEDESC | sed 's/ /%20/g'`
#
#
ITEMCOMMENTTOMAIL=""
if [ -n "$ITEMCOMMENT" ]; then ITEMCOMMENTTOMAIL=`cat <<EOT
<p><table><tbody>
<tr>
<td width="125">Item comment:</td><td>$ITEMCOMMENT</td>
</tr>
</tbody></table></p>
EOT
`
fi
#
#
COMMENTTOMAIL=""
if [ -n "$NOTIFICATIONAUTHORNAME" ]; then COMMENTTOMAIL=`cat <<EOT
<p><table><tbody>
<tr>
<td width="125">Comment:</td><td>$NOTIFICATIONAUTHORNAME</td><td>$NOTIFICATIONCOMMENT</td>
</tr>
</tbody></table></p>
EOT
`
fi
#
#
if [ "$PLUGINMODE" = "host-mode" ]; then
#
MAILSUBJECT=`echo [$NOTIFICATIONTYPE] $HOSTDISPLAYNAME is $HOSTSTATE`
#
BACKGROUND=#C9C9C9
if [ "$HOSTSTATE" = "UP" ]; then
BACKGROUND=#C7E1D6
elif [ "$HOSTSTATE" = "DOWN" ]; then
BACKGROUND=#F7DFDF
elif [ "$HOSTSTATE" = "UNREACHABLE" ]; then
BACKGROUND=`#CDD5E0`
fi
#
#
template=`cat <<TEMPLATE
<html>
<head><style>
BODY{font-family: Arial; font-size: 9pt;}
TABLE{border: 1px solid #eeeeee; border-collapse: collapse;}
TH{border: 1px solid #eeeeee; background: $BACKGROUND; padding: 10px; }
TD{border: 1px solid #eeeeee; padding: 5px; }
</style></head>
<body>
<p><table><tbody>
<tr>
<th colspan="2" align="center">Icinga Notification</th>
</tr>
<tr>
<td width="125">Host:</td><td><strong>$HOSTDISPLAYNAME</strong></td>
</tr>
<tr>
<td width="125">Description:</td><td><strong>$HOSTOUTPUT</strong></td>
</tr>
<tr>
<td width="125">Host State:</td><td>$HOSTSTATE</td>
</tr>
<tr>
<td width="125">FQDN:</td><td>$HOSTALIAS</td>
</tr>
<tr>
<td width="125">Address:</td><td>$HOSTADDRESS</td>
</tr>
<tr>
<td width="125">Raised Time:</td><td>$TIMETOMAIL</td>
</tr>
</tbody></table></p>
<br>$ITEMCOMMENTTOMAIL
<br>$COMMENTTOMAIL
<p><a href=$ICINGAWEBURL/host/show?host=$HOSTALIAS>Icinga Host view link</a></p>
</body>
</html>
TEMPLATE
`
#
#
elif [ "$PLUGINMODE" = "service-mode" ]; then
#
MAILSUBJECT=`echo [$NOTIFICATIONTYPE] $HOSTDISPLAYNAME - $SERVICEDISPLAYNAME is $SERVICESTATE`
#
BACKGROUND=#C9C9C9
if [ "$SERVICESTATE" = "OK" ]; then
BACKGROUND=#C7E1D6
elif [ "$SERVICESTATE" = "WARNING" ]; then
BACKGROUND=#FEEAC7
elif [ "$SERVICESTATE" = "CRITICAL" ]; then
BACKGROUND=#F7DFDF
elif [ "$SERVICESTATE" = "UNKNOWN" ]; then
BACKGROUND=`#CDD5E0`
fi
#
template=`cat <<TEMPLATE
<html>
<head><style>
BODY{font-family: Arial; font-size: 9pt;}
TABLE{border: 1px solid #eeeeee; border-collapse: collapse;}
TH{border: 1px solid #eeeeee; background: $BACKGROUND; padding: 10px; }
TD{border: 1px solid #eeeeee; padding: 5px; }
</style></head>
<body>
<p><table><tbody>
<tr>
<th colspan="2" align="center">Icinga Notification</th>
</tr>
<tr>
<td width="125">Service:</td><td><strong>$SERVICEDESC</strong></td>
</tr>
<tr>
<td width="125">Description:</td><td><strong>$SERVICEOUTPUT</strong></td>
</tr>
<tr>
<td width="125">Service State:</td><td>$SERVICESTATE</td>
</tr>
<tr>
<td width="125">Host:</td><td>$HOSTALIAS</td></tr>
<tr>
<td width="125">Address:</td><td>$HOSTADDRESS</td>
</tr>
<tr>
<td width="125">Raised Time:</td><td>$TIMETOMAIL</td>
</tr>
</tbody></table></p>
<br>$ITEMCOMMENTTOMAIL
<br>$COMMENTTOMAIL
<p><a href=$ICINGAWEBURL/service/show?host=$HOSTALIAS&service=$SERVICETOMAIL>Icinga Service view link</a></p>
</body>
</html>
TEMPLATE
`
#
#
fi
#
# Send email
#
/usr/bin/printf "%b" "$template" | mail \
-a "From: $MAILFROM" \
-a 'Content-Type: text/html; charset="utf-8"' \
-s "$MAILSUBJECT" \
$MAILTO
#
#
# TO DO
#
# 1. Add charset for headers From, To, Subject
# $VARB64 = ( echo -n $VAR | base64 )
# Subject =?utf-8?B?$VARB64?=
#