java - DropWizard 没有注册我的健康检查

Question

在我的 DropWizard (v0.7.0) 应用程序中，我有一个像这样的 DummyHealthCheck:

public class DummyHealthCheck extends HealthCheck {
    @Override
    protected Result check() throws Exception {
        return Result.healthy();
    }
}

然后在我的主要 Application impl 中:

public class MyApplication extends Application<MyConfiguration> {
    @Override
    public void run(MyConfiguration configuration, Environment environment)
            throws Exception {
        environment.jersey().register(new DummyHealthCheck());
    }
}

当我启动服务器时，它成功启动(没有异常/错误)，但是我收到以下消息:

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!    THIS APPLICATION HAS NO HEALTHCHECKS. THIS MEANS YOU WILL NEVER KNOW      !
!     IF IT DIES IN PRODUCTION, WHICH MEANS YOU WILL NEVER KNOW IF YOU'RE      !
!    LETTING YOUR USERS DOWN. YOU SHOULD ADD A HEALTHCHECK FOR EACH OF YOUR    !
!         APPLICATION'S DEPENDENCIES WHICH FULLY (BUT LIGHTLY) TESTS IT.       !
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

但是当我访问 http://localhost:8081/healthcheck 时，我看到:

{"deadlocks":{"healthy":true}}

1. 这是怎么回事？如何注册我的健康检查？
2. 此外，我已将 DropWizard 配置为在端口 8443 上使用 SSL(自签名)；我已经验证这适用于我的正常端点。然而，令我惊讶的是，我的管理应用仍然通过 HTTP 在 8081 上公开。我如何为 HTTPS 配置它？

Answer 1

问题一:

您无需向 Jersey 注册它，因为健康检查是特定于 DropWizard 的。他们应该注册如下

environment.healthChecks().register("dummy", new DummyHealthCheck());

解释为 here .如果它是如上注册的，您会看到

{"deadlocks":{"healthy":true}, "dummy":{"healthy":true}}

问题2:

我假设你已经做过类似的事情

server:
  applicationConnectors:
    - type: https
      port: 8443
      keyStorePath: example.keystore
      keyStorePassword: example
      validateCerts: false

在您的 yaml 中，如 here 所示.那只是为了申请。您还需要配置管理员

server:
  applicationConnectors:
  - ...
  adminConnectors:
  - type: https
    port: 8444    // should a different port from the application
    keyStorePath: example.keystore
    keyStorePassword: example
    validateCerts: false