zabbix_notify_slack.sh

#!/bin/bash

# See: SpecialThanks! => https://colabmix.co.jp/tech-blog/install-zabbix-slack/


SLACK_WEBHOOKSURL='https://hooks.slack.com/services/XXXXXXXXXX/YYYYYYYYYYYYYYYYYYYYYYYYYYYYYY'
SLACK_USERNAME='Zabot'
SLACK_ICON=':zabbix:'

# "Send to" for Zabbix User Media Setting
NOTIFSLACK_Y_CHANNEL="$1"
# "Default subject" for Action Operations Setting
ALERT_SUBJECT="$2"
# "Default message" for Action Operations Setting
ALERT_MESSAGE="$3"

if [ "${ALERT_SUBJECT%%:*}" == 'OK' ]; then
        COLOR="good"
elif [ "${ALERT_SUBJECT%%:*}" == 'WARNING' ]; then
        COLOR="warning"
elif [ "${ALERT_SUBJECT%%:*}" == 'PROBLEM' ]; then
        COLOR="danger"
else
        COLOR="#439FE0"
fi

PAYLOAD="payload={
    \"channel\": \"${NOTIFY_CHANNEL//\"/\\\"}\",
    \"username\": \"${SLACK_USERNAME//\"/\\\"}\",
    \"icon_emoji\": \"${SLACK_ICON}\",
    \"attachments\": [
        {
            \"color\": \"${COLOR}\",
            \"text\": \"${ALERT_MESSAGE//\"/\\\"}\"
        }
    ]
}"

curl -m 5 --data-urlencode "${PAYLOAD}" $SLACK_WEBHOOKSURL