HealthChecks SH wrapper for Cron Job Notifications/Monitoring.

HealthChecks.sh

#!/bin/sh
# Author: Liam Mitchell
# Purpose: Wrap a cron command and ping HealthChecks.io
HEALTHCHECKS_UUID=$1

# Check number of arguments is at least 1 for the Health Checks UUID.
if [ -z "$1" ];
then
 echo "Usage: `basename $0` HEALTHCHECKS_UUID command args..."
 exit 65
fi

# Set lockfile name and location
lockfile="/tmp/${HEALTHCHECKS_UUID}.lock"

# echo Lockfile: ${lockfile}

# Check if the lockfile exists.
if [ -f $lockfile ]; then
  # If the lockfile exists quit.
  echo Lockfile: ${lockfile} already exists.
exit;
  # If the lockfile is missing continue.
else
  # Create the lockfile.
  touch $lockfile

  # Start
  curl -s -m 10 --retry 5 https://hc-ping.com/${HEALTHCHECKS_UUID}/start > /dev/null

  # Payload here, remove the first argument and run the rest of arguments.
  shift 1
  "$@"

  # Ping HealthChecks.io.
  curl -s -m 10 --retry 5 https://hc-ping.com/${HEALTHCHECKS_UUID}/$? > /dev/null

  # Cleanup the lockfile
  rm -f $lockfile
fi