makeAssignments(reqItem, assignments, rule_variables, loggers);

/** Context contains
 * reqItem - request item (sc_req_item) that the rule is running against
 * assignments - name/value pairs set by previous rule assignments - assigning values to variables of the request item
 * rule_variables - name/value pairs set by previous rule assignments with temporary values that do not persist after the rule finishes making assignments
 * loggers - collection of logging functions, to use:
 * 	loggers.log(msg, loggers.executor);
 * 	loggers.logError(msg, loggers.executor);
 * 	loggers.logWarning(msg, loggers.executor);
 * returns true if assignments made successfully, false otherwise
 */
function makeAssignments(reqItem, assignments, rule_variables, loggers) {

	/*  	Hack to select virtual nics, in this case prefixed by "rms" and first not in use.

		The field 'available' is not reliable since it is only updated on the Azure discovery schedule,
		so rely upon cmdb_rel_ci table for the vnic instance
	*/


	/*  	Determine used Network Interface Cards based on fixed prefix.  Look at ways to address through relationship
		data from Azure.
	*/
	prefix = 'rms';

	usedNics = [ ];
	gr = new GlideRecord('cmdb_rel_ci');
	gr.addQuery('child.sys_class_name', 'cmdb_ci_azure_nic');
	gr.addQuery('parent.sys_class_name', 'cmdb_ci_azure_vm');
	gr.addQuery('child.name', 'STARTSWITH', prefix);
	gr.query();

	while (gr.next()) {
		usedNics.push(gr.child);
	}

	/*  Determine unused Network Interface Cards based on fix prefix. */
	selectedNic = null;
	gr = new GlideRecord('cmdb_ci_azure_nic');
	gr.addQuery('name', 'STARTSWITH', prefix);
	gr.addQuery('sys_id', 'NOT IN', usedNics);
	gr.query();
	if (gr.next()) {
		selectedNic = gr;
	}

	if (!selectedNic) {
		loggers.logError("No network interface cards available matching prefix '" + prefix + "'",
			loggers.executor);
		return false;
	}

	assignments.nic = selectedNic.sys_id;
	return true;
}