Question

我通过Eureka Service Discovery在本地运行了Spring Boot Admin（客户端中没有SBA依赖）。现在，我试图在Cloudfoundry中部署它。根据文档，版本2.0.1应该“开箱即用地支持CloudFoundry”。

我的问题是，当我将服务扩展到多个实例时，它们都在相同的主机名和端口下注册。尤里卡（Eureka）向我显示了所有实例，它们的InstanceID是我这样配置的：

eureka:
  instance:
    instanceId: ${spring.application.name}:${vcap.application.instance_id:${spring.application.instance_id:${random.value}}}

但是Spring Boot Admin只列出一个实例，其主机名：端口为标识符。我认为我必须在客户端上进行一些配置，以便在注册时按HTTP标头发送实例ID。但是我不知道怎么办。

Answer 1

显然，您必须在客户端的Startup / ContextRefresh上将Cloudfoundry生成的ApplicationId和InstanceIndex设置为Eureka ApplicationId和InstanceId。

CloudFoundryApplicationInitializer.kt

@Component
@Profile("cloud")
@EnableConfigurationProperties(CloudFoundryApplicationProperties::class)
class CloudFoundryApplicationInitializer {

private val log = LoggerFactory.getLogger(CloudFoundryApplicationInitializer::class.java)

@Autowired
private val applicationInfoManager: ApplicationInfoManager? = null

@Autowired
private val cloudFoundryApplicationProperties: CloudFoundryApplicationProperties? = null

@EventListener
fun onRefreshScopeRefreshed(event: RefreshScopeRefreshedEvent) {
    injectCfMetadata()
}

@PostConstruct
fun onPostConstruct() {
    injectCfMetadata()
}

fun injectCfMetadata() {

    if(this.cloudFoundryApplicationProperties == null) {
        log.error("Cloudfoundry Properties not set")
        return
    }

    if(this.applicationInfoManager == null) {
        log.error("ApplicationInfoManager is null")
        return
    }

    val map = applicationInfoManager.info.metadata
    map.put("applicationId", this.cloudFoundryApplicationProperties.applicationId)
    map.put("instanceId", this.cloudFoundryApplicationProperties.instanceIndex)

    }
}

CloudFoundryApplicationProperties.kt

@ConfigurationProperties("vcap.application")
class CloudFoundryApplicationProperties {
    var applicationId: String? = null
    var instanceIndex: String? = null
    var uris: List<String> = ArrayList()
}

在Cloudfoundry中的多个服务实例之间，Spring Boot Admin不能有所不同

1 个答案: