Konfiguracja chmury wiosennej Eureka - pierwsze podejście nie działa

Question

Zajmuję się tworzeniem aplikacji mikroserwisów Spring Cloud Eureka. Chcę, aby moje usługi łączyły się z usługą konfiguracyjną za pośrednictwem pierwszego podejścia Eureka. Mikrousługi są pakowane jako kontenery dokowane i wdrażane za pomocą funkcji dokowania. Aplikacja składa się z:

1. myapp-service-registry: usługa rejestru usługi realizowane z Wiosna Chmura Eureka
2. myapp-config-service: config Wiosna Chmura serwera usług
3. myapp-service-test: Przykład microservice które powinny starać swoje dane konfiguracyjne z usługi konfiguracji, łącząc się z tym za pomocą metody Eureka-first.

Połączenie z usługą konfiguracyjną nie działa zgodnie z opisem poniżej. Przede wszystkim jakiś danych konfiguracyjnych:

Oto myapp-service-registry 's application.yml:

server: 
    port: ${PORT:8761} 

eureka: 
    client: 
    registerWithEureka: false 
    fetchRegistry: false 
    server: 
    waitTimeInMsWhenSyncEmpty: 0 

Tutaj myapp-config-service' s application.yml:

server: 
    port: ${MYAPP_CONFIG_SERVICE_PORT:8888} 

spring: 
    cloud: 
    config: 
     server: 
     git: 
      uri: ${MYAPP_CONFIG_SERVICE_GIT_URI} 
    config: 
    name: myapp-config-service 

# eureka service registry client 

eureka: 
    client: 
     serviceUrl: 
      defaultZone: http://${SERVICE_REGISTRY_HOST}:${SERVICE_REGISTRY_PORT}/eureka/ 
    instance: 
     preferIpAddress: true 

serwer i klient Config są inicjowane jak w configserver-eureka i eureka-first próbki w https://github.com/spring-cloud-samples/tests:

myapp-config-service 's bootstrap.yml jest:

spring: 
    application: 
     name: myapp-config-service 
    cloud: 
     config: 
      discovery: 
       enabled: true 

I myapp-service-test' s application.yml:

eureka: 
    client: 
     serviceUrl: 
      defaultZone: http://${SERVICE_REGISTRY_HOST}:${SERVICE_REGISTRY_PORT}/eureka/ 
    instance: 
     preferIpAddress: true 

I myapp-service-test „s bootstrap.yml:

spring: 
    application: 
    name: myapp-service-test 
    cloud: 
    config: 
     discovery: 
     enabled: true 
     serviceId: myapp-config-service 

Poniżej zmienna docker-compose.yml (env są zastępowane rzeczywiste wartości przy uruchomieniu):

myapp-service-registry: 
image: myapp/myapp-service-registry:0.0.1 
ports: 
    - ${EUREKA_PORT}:${EUREKA_PORT} 

# myapp-config-service 

myapp-config-service: 
    image: myapp/myapp-config-service:0.0.1 
    volumes: 
    - ${MYAPP_DATA_FOLDER}/config:/var/opt/myapp/config 
    environment: 
     MYAPP_CONFIG_SERVICE_PORT: ${MYAPP_CONFIG_SERVICE_PORT} 
     SERVICE_REGISTRY_HOST: ${MYAPP_STAGING_IP} 
     SERVICE_REGISTRY_PORT: ${EUREKA_PORT} 
     MYAPP_CONFIG_SERVICE_GIT_URI: ${MYAPP_CONFIG_SERVICE_GIT_URI} 
    ports: 
     - ${MYAPP_CONFIG_SERVICE_PORT}:${MYAPP_CONFIG_SERVICE_PORT} 

# myapp-service-test 

myapp-service-test: 
    image: myapp/myapp-service-test:0.0.1 
    environment: 
    SERVICE_REGISTRY_HOST: ${MYAPP_STAGING_IP} 
    SERVICE_REGISTRY_PORT: ${EUREKA_PORT} 
    ports: 
    - ${MYAPP_SERVICE_TEST_TWO_PORT}:8080 

Mogę sprawdzić, czy Eureka działa, łącząc przeglądarkę z http://[...MACHINE-IP...]:8761/ i wyświetlając pulpit nawigacyjny Eureka. Podobnie, testuję, że usługa konfiguracji działa i odpowiada na http:///[...MACHINE-IP...]:8888/myapp-config-service; Z powyższej konfiguracji, z drugiej strony, wywala MojaApl-service-test podczas uruchamiania z następującymi dzienniku:

-02-03 08:26:45.191 INFO 1 --- [   main] e.f.s.two.TestServiceApplication  : Starting TestServiceApplication v0.0.1 on b1bc37422027 with PID 1 (/app.jar started by root in /) 
2016-02-03 08:26:45.223 INFO 1 --- [   main] e.f.s.two.TestServiceApplication  : No active profile set, falling back to default profiles: default 
2016-02-03 08:26:45.448 INFO 1 --- [   main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@4d97e82d: startup date [Wed Feb 03 08:26:45 UTC 2016]; root of context hierarchy 
2016-02-03 08:26:46.382 INFO 1 --- [   main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring 
2016-02-03 08:26:46.442 INFO 1 --- [   main] trationDelegate$BeanPostProcessorChecker : Bean 'configurationPropertiesRebinderAutoConfiguration' of type [class org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$6b65138e] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
2016-02-03 08:26:47.089 INFO 1 --- [   main] o.s.c.n.eureka.InstanceInfoFactory  : Setting initial instance status as: STARTING 
2016-02-03 08:26:48.231 INFO 1 --- [   main] c.n.d.provider.DiscoveryJerseyProvider : Using encoding codec LegacyJacksonJson 
2016-02-03 08:26:48.237 INFO 1 --- [   main] c.n.d.provider.DiscoveryJerseyProvider : Using decoding codec LegacyJacksonJson 
2016-02-03 08:26:49.171 INFO 1 --- [   main] c.n.d.provider.DiscoveryJerseyProvider : Using encoding codec LegacyJacksonJson 
2016-02-03 08:26:49.171 INFO 1 --- [   main] c.n.d.provider.DiscoveryJerseyProvider : Using decoding codec LegacyJacksonJson 
2016-02-03 08:26:49.496 INFO 1 --- [   main] com.netflix.discovery.DiscoveryClient : Disable delta property : false 
2016-02-03 08:26:49.497 INFO 1 --- [   main] com.netflix.discovery.DiscoveryClient : Single vip registry refresh property : null 
2016-02-03 08:26:49.497 INFO 1 --- [   main] com.netflix.discovery.DiscoveryClient : Force full registry fetch : false 
2016-02-03 08:26:49.498 INFO 1 --- [   main] com.netflix.discovery.DiscoveryClient : Application is null : false 
2016-02-03 08:26:49.502 INFO 1 --- [   main] com.netflix.discovery.DiscoveryClient : Registered Applications size is zero : true 
2016-02-03 08:26:49.503 INFO 1 --- [   main] com.netflix.discovery.DiscoveryClient : Application version is -1: true 
2016-02-03 08:26:49.503 INFO 1 --- [   main] com.netflix.discovery.DiscoveryClient : Getting all instance registry info from the eureka server 
2016-02-03 08:26:49.720 WARN 1 --- [   main] com.netflix.discovery.DiscoveryClient : Can't get a response from http://localhost:8761/eureka/apps/ 
<...> 
com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused 
    at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:187) ~[jersey-apache-client4-1.19.jar!/:1.19] 
    at com.sun.jersey.api.client.filter.GZIPContentEncodingFilter.handle(GZIPContentEncodingFilter.java:123) ~[jersey-client-1.19.jar!/:1.19] 
    at com.netflix.discovery.EurekaIdentityHeaderFilter.handle(EurekaIdentityHeaderFilter.java:27) ~[eureka-client-1.3.4.jar!/:1.3.4] 
    <...> 
Caused by: java.net.ConnectException: Connection refused 
    at java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:1.8.0_66-internal] 
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_66-internal] 
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_66-internal] 
    <...> 

2016-02-03 08:26:49.747 ERROR 1 --- [   main] com.netflix.discovery.DiscoveryClient : Can't contact any eureka nodes - possibly a security group issue? 

com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused 
    <...> 

2016-02-03 08:26:49.770 ERROR 1 --- [   main] com.netflix.discovery.DiscoveryClient : DiscoveryClient_MYAPP-SERVICE-TEST/b1bc37422027:myapp-service-test - was unable to refresh its cache! status = java.net.ConnectException: Connection refused 

com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused 
    <...> 

2016-02-03 08:26:49.785 WARN 1 --- [   main] com.netflix.discovery.DiscoveryClient : Using default backup registry implementation which does not do anything. 
2016-02-03 08:26:49.810 INFO 1 --- [   main] com.netflix.discovery.DiscoveryClient : Starting heartbeat executor: renew interval is: 10 
2016-02-03 08:26:49.818 INFO 1 --- [   main] c.n.discovery.InstanceInfoReplicator  : InstanceInfoReplicator onDemand update allowed rate per min is 4 
2016-02-03 08:26:50.443 WARN 1 --- [   main] lientConfigServiceBootstrapConfiguration : Could not locate configserver via discovery 

java.lang.RuntimeException: No matches for the virtual host name :myapp-config-service 
    at com.netflix.discovery.DiscoveryClient.getNextServerFromEureka(DiscoveryClient.java:782) ~[eureka-client-1.3.4.jar!/:1.3.4] 
    at org.springframework.cloud.netflix.config.DiscoveryClientConfigServiceBootstrapConfiguration.refresh(DiscoveryClientConfigServiceBootstrapConfiguration.java:71) [spring-cloud-netflix-core-1.1.0.M3.jar!/:1.1.0.M3] 
    <...> 

2016-02-03 08:26:50.470 INFO 1 --- [   main] e.f.s.two.TestServiceApplication  : Started TestServiceApplication in 7.101 seconds (JVM running for 9.329) 

    . ____   _   __ _ _ 
/\\/___'_ __ _ _(_)_ __ __ _ \ \ \ \ 
(()\___ | '_ | '_| | '_ \/ _` | \ \ \ \ 
\\/ ___)| |_)| | | | | || (_| | )))) 
    ' |____| .__|_| |_|_| |_\__, |//// 
=========|_|==============|___/=/_/_/_/ 
:: Spring Boot ::  (v1.3.1.RELEASE) 

2016-02-03 08:26:50.773 INFO 1 --- [   main] c.c.c.ConfigServicePropertySourceLocator : Fetching config from server at: http://localhost:8888 
2016-02-03 08:26:51.015 WARN 1 --- [   main] c.c.c.ConfigServicePropertySourceLocator : Could not locate PropertySource: I/O error on GET request for "http://localhost:8888/myapp-service-test/default":Connection refused; nested exception is java.net.ConnectException: Connection refused 

<...> 

2016-02-03 08:26:54.856 ERROR 1 --- [pool-5-thread-1] com.netflix.discovery.DiscoveryClient : Can't contact any eureka nodes - possibly a security group issue? 

com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused 
    <...> 

2016-02-03 08:26:57.272 WARN 1 --- [   main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testTwoServiceController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: java.lang.String myapp.services.two.TestServiceController.message; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'message' in string value "${message}" 
2016-02-03 08:26:57.281 INFO 1 --- [   main] o.apache.catalina.core.StandardService : Stopping service Tomcat 
2016-02-03 08:26:57.299 ERROR 1 --- [   main] o.s.boot.SpringApplication    : Application startup failed 

Należy pamiętać, że jeśli nie będę realizować Eureka pierwszego podejścia (i ustaw spring.cloud. config.uri bezpośrednio w usłudze bootstrap.yml), usługa rejestruje się w Eureka, znajduje serwer konfiguracji i działa poprawnie (widzę zarejestrowaną usługę w panelu kontrolnym Eureka i mogę sprawdzić, czy właściwości konfiguracji są poprawnie odczytane).

Answer 1

Potrzebujesz eureka serviceUrl w bootstrap.yml (jak również identyfikator usługi serwera konfiguracji).