ZABBIX Trigger -> Mattermost

mattermost.sh

#!/bin/sh

# Mattermost incoming web-hook URL and user name
url='https://mattermost.example.com/hooks/xxxxxxxxxx'
username='ZABBIX'
icon='https://jujucharms.com/_icon/120/zabbix-frontend.png'

## Values received by this script:
# To = $1 (Mattermost channel or user to send the message to, specified in the Zabbix web interface; "@username" or "#channel")
# Subject = $2 (usually either PROBLEM or RECOVERY)
# Message = $3 (whatever message the Zabbix action sends, preferably something like "Zabbix server is unreachable for 5 minutes - Zabbix server (127.0.0.1)")

# Get the Mattermost channel or user ($1) and Zabbix subject ($2 - hopefully either PROBLEM or RECOVERY)
to="$1"
title="$2"
# Replace NewLine Code
message="$(echo $3 | tr \\r \\n)"

type="$(echo $title | cut -f1 -d:)"

# Change color emoji depending on the subject - Green (RECOVERY), Red (PROBLEM)
if [ "$type" == 'OK' ]; then
        emoji=':laughing:'
        color="#00ff33"
elif [ "$type" == 'PROBLEM' ]; then
        emoji=':fearful:'
        color="#ff2a00"
fi

# The message that we want to send to Mattermost  is the "subject" value ($2 / $subject - that we got earlier)
#  followed by the message that Zabbix actually sent us ($3)

text="$emoji\n$message"

# Build our JSON payload and send it as a POST request to the Mattermost incoming web-hook URL
payload="payload={\"channel\": \"$to\", \"icon_url\": \"$icon\", \"attachments\": [ {\"color\": \"${color}\", \"title\": \"${title}\", \"text\": \"${text}\"} ], \"username\": \"${username}\"}"
/usr/local/bin/curl -s -m 5 -k --data-urlencode "${payload}" $url