docker - Spring Boot Docker com.netflix.discovery.shared.transport.TransportException:无法在任何已知服务器上执行请求

Question

这是我的Eureka Server 应用程序。property

# set port
server.port=8761
# no need to register the server with the server
eureka.client.register-with-eureka=false
# don't need a local copy of the registry
eureka.client.fetch-registry=false

Eureka服务器dockerfile

FROM openjdk:8
ADD target/eureka-service.jar eureka-service.jar
EXPOSE 8761
ENTRYPOINT ["java", "-jar", "eureka-service.jar"]

Eureka Client应用程序。属性

eureka.client.serviceUrl.defaultZone= http://localhost:8761/eureka/
eureka.client.registerWithEureka=true
eureka.client.fetchRegistry=true

Eureka客户端dockerfile

FROM openjdk:8
ADD target/foo.jar foo.jar
EXPOSE 8971
ENTRYPOINT ["java", "-jar", "foo.jar"]

Eureka服务器用@EnableEurekaServer注释，Eureka客户端用@EnableEurekaClient注释
客户端已成功向EurekaServer注册，并且一切正常。但是当我尝试使用以下方法在Docker中运行它时
Docker-Compose.yml
版本:“2.0”

services:
 foo-service:
  build: foo/
  ports: 
  - "8761:8761"

 bar-service:
  build: bar/
  ports: 
  - "8971:8971"

客户端无法向服务器注册。并低于stacktrace。

com.netflix.discovery.shared.transport.TransportException: Cannot execute request on any known server
      |     at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:111) ~[eureka-client-1.6.2.jar!/:1.6.2]
      |     at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) ~[eureka-client-1.6.2.jar!/:1.6.2]
      |     at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59) ~[eureka-client-1.6.2.jar!/:1.6.2]
      |     at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) ~[eureka-client-1.6.2.jar!/:1.6.2]
      |     at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) ~[eureka-client-1.6.2.jar!/:1.6.2]
      |     at com.netflix.discovery.DiscoveryClient.register(DiscoveryClient.java:798) ~[eureka-client-1.6.2.jar!/:1.6.2]
      |     at com.netflix.discovery.InstanceInfoReplicator.run(InstanceInfoReplicator.java:104) [eureka-client-1.6.2.jar!/:1.6.2]
      |     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_171]
      |     at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_171]
      |     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_171]
      |     at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [na:1.8.0_171]
      |     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_171]
      |     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_171]
      |     at java.lang.Thread.run(Thread.java:748) [na:1.8.0_171]

我真的是Docker的新手，有什么帮助吗？

Answer 1

将dockerfile的EurekaServer修改为:

FROM openjdk:8
ADD target/eureka-service.jar eureka-service.jar
EXPOSE 8761
ENTRYPOINT java -jar Eureka-0.0.1-SNAPSHOT.jar eureka

将 dockerfile的 EurekaClient修改为:

FROM openjdk:8
ADD target/foo.jar foo.jar
EXPOSE 8971
ENTRYPOINT java -jar foo.jar foo

在 EurekaClient的属性文件中，修改此属性

eureka.client.serviceUrl.defaultZone=http://eureka:8761/eureka

现在，分别为两个应用程序构建镜像。
在 docker-compose.yml中，您将需要添加一些配置以将客户端与服务器链接。修改后的docker-compose如下所示:

version: "3"
services:
  eureka:
    image: eureka:latest
    ports:
    - "8761:8761"
    networks:
    - webnet
  noob:
    image: foo:latest
    ports:
    - "8971:8971"
    networks:
    - webnet

networks:
  webnet:

干杯!