Custom Health Indicators with Spring Boot Actuator

@Component
public class ExternalApiHealthIndicator implements HealthIndicator {
    @Override
    public Health health() {
        boolean isUp = checkService();
        if (isUp) {
            return Health.up().withDetail("externalService", "Running").build();
        }
        return Health.down().withDetail("externalService", "Unreachable").build();
    }
    private boolean checkService() { /* Logic */ return true; }
}