Slack notification script

slack-notify

#!/usr/bin/env bash
# Issues notifications on a Slack channel.
#
# >>> Don't forget to set SLACK_WEBHOOK_URL_DEFAULT to a valid URL <<<
#
# Usage: slack-notify "leave the gun. take the cannoli"
# Source: https://gist.github.com/lucaspar/64c9cf35756d1892e749c1bd735aa0fe
set -euo pipefail

# Slack Notifications
SLACK_WEBHOOK_URL_DEFAULT="https://hooks.slack.com/services/GET/A/LINK"
SLACK_WEBHOOK_URL="$SLACK_WEBHOOK_URL_DEFAULT"
SLACK_PREFIX="${SLACK_PREFIX:=\`$(hostname)\`}"

# notify about error on slack channel if errors happened
function _slack_notify() {
    local ERROR_MESSAGE="$SLACK_PREFIX | $1"
    curl -X POST -H 'Content-type: application/json' --data '{"text": "'"$ERROR_MESSAGE"'"}' "$SLACK_WEBHOOK_URL" &>/dev/null
}

# pass arguments to function
_slack_notify "$@"