public static void configureDefault(SentinelFeignClientProperties properties,
			AbstractCircuitBreakerFactory factory) {
		List<DegradeRule> defaultConfigurations = properties.getRules()
				.getOrDefault(properties.getDefaultRule(), new ArrayList<>());
		factory.configureDefault(
				resourceName -> new SentinelConfigBuilder(resourceName.toString())
						.entryType(EntryType.OUT).rules(defaultConfigurations).build());
	}
properties backup, prevent rules from being updated every time the container is
refreshed.
spring-cloud-alibaba-starters/spring-cloud-circuitbreaker-sentinel/src/main/java/com/alibaba/cloud/circuitbreaker/sentinel/feign/CircuitBreakerRuleChangeListener.java