create-ups-if-not-exist.sh

create-or-update-ups.sh

#! /usr/bin/env bash

set -e

readonly ARGS="$#"
readonly SERVICE_INSTANCE="$1"
readonly CREDENTIALS="$2"
readonly PROGNAME=$(basename $0)

usage() {
	cat <<- EOF
	usage: $PROGNAME service-instance credentials

	Program creates a clound foundry user provided service in the currently
	selected space if necessary.  If a service already exists with the given
	instance name, then the service will be updated

	Examples:
	   Create a ups:
	   $PROGNAME my-ups '{"username":"admin","password":"password"}'
	EOF
}

array_contains () {
	local seeking=$1; shift
	local in=false
	for element; do
		if [[ $element == $seeking ]]; then
			in=true
			break
		fi
	done
	echo $in
}

does_service_exist() {
	local services=$(cf services | awk '{print $1}' | tail -n +4)
	echo $(array_contains $SERVICE_INSTANCE $services)
}

main() {
    if [ $ARGS -ne 2 ]; then
        usage
        return 1
    fi
	if [ "$(does_service_exist $SERVICE_INSTANCE)" = false ]; then
		echo "Creating Service..."
		cf create-user-provided-service $SERVICE_INSTANCE -p $CREDENTIALS
	else
		echo "Service $SERVICE_INSTANCE Already Exists, Skipping..."
		cf update-user-provided-service $SERVICE_INSTANCE -p $CREDENTIALS
	fi
}	

main