/* runtime functions */
    function getS3ObjectAndCreateDeployment() {
    // Get the s3 object to fetch application-name and deploymentgroup-name metadata.
	    s3.headObject({
		    Bucket: bucket,
		    Key: key
	    }, function(err, data) {
            if (err) {
                context.done('Error', 'Error getting s3 object: ' + err);
            } else {
                console.log('Creating deployment');
                createDeployment(data);
            }
        });
    }