monit-slack.sh

#!/bin/bash
SLACK_WEBHOOK="https://hooks.slack.com/services/..."
SLACK_CHANNEL="#alerts"
SLACK_USERNAME="monit on $MONIT_HOST"

if [[ "$MONIT_DESCRIPTION" =~ .*"succeeded".* ]]; then
     SLACK_ICON=":white_check_mark:" 
     SLACK_USERNAME="monit on $MONIT_HOST - service up"
elif [[ "$MONIT_DESCRIPTION" =~ .*"failed".* ]]; then
     SLACK_ICON=":exclamation:"
     SLACK_USERNAME="monit on $MONIT_HOST - service down"
else
     SLACK_ICON=":grey_exclamation:"
fi

curl -s -X POST --data-urlencode "payload={\"channel\": \"$SLACK_CHANNEL\", \"username\": \"$SLACK_USERNAME\", \"text\": \"*$MONIT_SERVICE* - $MONIT_DESCRIPTION\", \"icon_emoji\": \"$SLACK_ICON\"}" $SLACK_WEBHOOK