var lookup = {},
	result = [];

JSON.parse(value).forEach(function (item) {
		var envoy_http_conn_manager_prefix = item.labels.envoy_http_conn_manager_prefix;

		if (lookup[envoy_http_conn_manager_prefix]) {
			return;
		}
		lookup[envoy_http_conn_manager_prefix] = 1;
		result.push({
			'{#CONN_MANAGER}': envoy_http_conn_manager_prefix
		});
});

return JSON.stringify(result);