gcp-start.sh

#!/bin/bash
####################################################################
# gcp-start.sh
#
# Enforce that the Google CUPs Connector is running
# Gustavo Arnosti Neves
#
# Use full-paths to files, or add a PATH variable or you will
# get errors when running this from Cron.
#
# Just edit the variables below to set up for your system.
# You should run this as root though.
#
# Example Cron:
# $ sudo crontab -e
#
# Every 10 minutes:
# 3,13,23,33,43,53 * * * * /PATH/TO/gcp-start.sh > /tmp/gcp-start.log
# 
# Or:
# */10 * * * * /PATH/TO/gcp-start.sh &> /tmp/gcp-start.log
####################################################################

GCP_USER="gcp"
CP_BIN='/opt/gcp_cups_connector/gcp-cups-connector'
PIDFILE='/var/run/gcp_cups_connector_pid'
CREDENTIALS_FILE='/etc/gcp_cups_connector/gcp-cups-connector.config.json'
LOGFILE='/tmp/gcp_cups_connector.log'

if [[ $USER != "root" ]]; then
	echo "You should run this as the root user, aborting..."
	exit 1
fi

if [[ ! -f $PIDFILE ]]; then
	sudo -H -u "$GCP_USER" $CP_BIN -config-filename $CREDENTIALS_FILE > $LOGFILE & echo $! > $PIDFILE
fi