@Component
public class TacoCountInfoContributor implements InfoContributor {
	private TacoRepository tacoRepo; // get info from repository
	public TacoCountInfoContributor(TacoRepository tacoRepo) {
		this.tacoRepo = tacoRepo;
	}
	@Override
	public void contribute(Builder builder) {
		long tacoCount = tacoRepo.count();		// add info to endpoint
		Map tacoMap = new HashMap();
		tacoMap.put("count", tacoCount);
		builder.withDetail("taco-stats", tacoMap);
	}
}

@Component
public class WackoHealthIndicator
 implements HealthIndicator {
 @Override
 public Health health() {
	 int hour = Calendar.getInstance().get(Calendar.HOUR_OF_DAY);
	 if (hour > 12) {
		return Health
				.outOfService()
				.withDetail("reason", "I'm out of service after lunchtime")
				.withDetail("hour", hour)
				.build();
	}
	return Health.up().withDetail("reason", "All is good!").build();
}

import io.micrometer.core.instrument.MeterRegistry;
@Component
public class TacoMetrics extends AbstractRepositoryEventListener {
	private MeterRegistry meterRegistry;

	 public TacoMetrics(MeterRegistry meterRegistry) {
		this.meterRegistry = meterRegistry;
	 }
	 @Override
	 protected void onAfterCreate(Taco taco) {
		 List ingredients = taco.getIngredients();
		 for (Ingredient ingredient : ingredients) {
			 meterRegistry.counter("tacocloud",
			 "ingredient", ingredient.getId()).increment();
		 }
	 }
}

@Override
protected void configure(HttpSecurity http) throws Exception {
	 http.authorizeRequests()
	 .antMatchers("/actuator/**").hasRole("ADMIN").and().httpBasic();
	
	// OR 
	 http.requestMatcher(
		EndpointRequest.toAnyEndpoint()  // no need to hardcode basic url
			.excluding("health", "info"))
	 .authorizeRequests()
	 .anyRequest().hasRole("ADMIN").and().httpBasic();	
}