HealthIndicators for spring boot actuator

Question

we are trying to healthcheck a spring boot application, we are planning to use spring boot actuator health to get the health status.

what is confusing is which classes provide the default healthcheck status ({"status":"UP"}) when CassandraHealthIndicator, DiskSpaceHealthIndicator, DataSourceHealthIndicator, ElasticsearchHealthIndicator, JmsHealthIndicator, MailHealthIndicator, MongoHealthIndicator, RabbitHealthIndicator, RedisHealthIndicator, SolrHealthIndicator are not applicable.

Answer 1

I believe the default is ApplicationHealthIndicator but you can of course write your own:

public class CustomHealthIndicator implements HealthIndicator {


    @Override
    public Health health() {
        int errorCode = check(); // perform some specific health check
        if (errorCode != 0) {
            return Health.down().withDetail("Error Code", errorCode).build();
        }
        return Health.up().build();
    }

    private int check() {

        return 0;
    }

}

Answer 2

Found the answer after tracing the health request. Default Health information is derived from DiskSpaceHealthIndicator , the request for health is handled from HealthMvcEndpoint