How do you implement custom health indicators?

Implement HealthIndicator interface:\n\n@Component\npublic class DatabaseHealthIndicator implements HealthIndicator {\n @Autowired\n private DataSource dataSource;\n \n @Override\n public Health health() {\n try {\n Connection connection = dataSource.getConnection();\n connection.close();\n return Health.up().withDetail("database", "Available").build();\n } catch (Exception e) {\n return Health.down().withDetail("database", "Unavailable").build();\n }\n }\n}