Zuul网关无法连接到Docker-Compose下的Eureka service registry

Question

当我通过Spring-Boot可运行的jar文件独立启动Eureka和Zuul时，一切似乎都运行得很好。但是当我尝试在Docker容器中运行每一个并将它们与Docker-Compose连接时，Zuul网关无法找到Eureka服务器。

docker-compose.yml：

version: '3.6'

services:

 eureka-serviceregistry:
  container_name: serviceregistry
  build: ./ServiceRegistry
  ports:
   - "8761:8761"
  hostname: serviceregistry
  environment:
    eureka.client.serviceUrl.defaultZone: http://serviceregistry:8761/eureka/

 zuul-edgeservice:
  container_name: gateway
  build: ./ServiceGateway
  ports:
   - "8080:8080"
  hostname: gateway
  environment:
      eureka.client.serviceUrl.defaultZone: http://serviceregistry:8761/eureka/

FROM openjdk:8-jdk-alpine

# Add Spring Boot app.jar to Container
COPY /build/libs/ServiceRegistry-0.0.1-SNAPSHOT.jar /usr/local/ServiceRegistry.jar

EXPOSE 8761

# Fire up our Spring Boot app by default
ENTRYPOINT [ "sh", "-c", "java -Djava.security.egd=file:/dev/./urandom -jar /usr/local/ServiceRegistry.jar" ]

server.port=8761

spring.application.name=EurekaServiceRegistry

eureka.client.register-with-eureka=true
eureka.client.fetch-registry=false
eureka.client.serviceUrl.defaultZone=http://localhost:8761/eureka
eureka.instance.hostname=EurekaServiceRegistry

logging.level.com.netflix.eureka=INFO
logging.level.com.netflix.discovery=INFO

@EnableEurekaServer
@SpringBootApplication
public class QQServiceRegistry {

    public static void main(String[] args) {
        SpringApplication.run(QQServiceRegistry.class, args);
    }
}

FROM openjdk:8-jdk-alpine

# Add Spring Boot app.jar to Container
COPY /build/libs/ServiceGateway-0.0.1-SNAPSHOT.jar /usr/local/ServiceGateway.jar

EXPOSE 8080

# Fire up our Spring Boot app by default
ENTRYPOINT [ "sh", "-c", "java -Djava.security.egd=file:/dev/./urandom -jar /usr/local/ServiceGateway.jar" ]

Zuul应用程序.属性：

zuul.routes.auth.path=/enterprise_service/**
zuul.routes.auth.service-id=ENTERPRISE_SERVICE
eureka.client.serviceUrl.defaultZone=http://localhost:8761/eureka

ZuulSpring靴类：

@EnableZuulProxy
@SpringBootApplication
public class ServiceGateway {

    public static void main(String[] args) {
        SpringApplication.run(ServiceGateway.class, args);
    }
}

Root build.gradle文件：

buildscript {
    ext {
        springBootVersion = '2.0.1.RELEASE'
    }
    repositories {
        jcenter()
    }
    dependencies {
        classpath "org.jfrog.buildinfo:build-info-extractor-gradle:4+"
        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
    }
}

subprojects {
    apply plugin: 'java'
    apply plugin: 'eclipse'
    apply plugin: 'idea'
    apply plugin: 'org.springframework.boot'
    apply plugin: 'io.spring.dependency-management'
    apply plugin: 'com.jfrog.artifactory'
    apply plugin: 'maven-publish'

    sourceCompatibility = 1.8
    targetCompatibility = 1.8

    artifactory {
        contextUrl = "${artifactory_contextUrl}"
        publish {
            repository {
                repoKey = 'gradle-dev-local'
                username = "${artifactory_user}"
                password = "${artifactory_password}"
                maven = true
            }
            defaults {
                publications ('mavenJava')
            }
        }
        resolve {
            repository {
                repoKey = 'gradle-dev'
                username = "${artifactory_user}"
                password = "${artifactory_password}"
                maven = true
            }
        }
    }

    publishing {
        publications {
            mavenJava(MavenPublication) {
                from components.java
            }
        }
    }

    artifactoryPublish {
        dependsOn assemble
    }

    dependencyManagement {
        imports {
            mavenBom 'org.springframework.cloud:spring-cloud-dependencies:Finchley.M8'
        }
    }

    repositories {
        maven {
            url 'https://repo.spring.io/libs-milestone'
        }
    }

    dependencies {
        compile('org.springframework.boot:spring-boot-starter-actuator')
        compile('org.springframework.boot:spring-boot-starter-web')
        testCompile('org.springframework.boot:spring-boot-starter-test')
    }

   bootJar {
        launchScript()
    }
}

group = 'my.company.service.infrastructure.registry'
version = '0.0.1-SNAPSHOT'

dependencies {
    compile('org.springframework.cloud:spring-cloud-starter-netflix-eureka-server')
}

group = 'my.company.service.infrastructure.gateway'
version = '0.0.1-SNAPSHOT'

dependencies {
    compile('org.springframework.cloud:spring-cloud-starter-netflix-zuul')
    compile('org.springframework.cloud:spring-cloud-starter-netflix-eureka-client')
}

com.netflix.discovery.shared.transport.transport.exec:无法在任何已知服务器上执行>请求，请访问>com.netflix.discovery.shared.transport.decorator.retryableeurekaHttpClient.exec>ute(retryableeurekaHttpClient.java:111)~[eureka-client-1.8.6.jar！/:1.8.6]访问>com.netflix.discovery.shared.transport.decorator.eurekaHttpClient.regi>ster(EurekaHttpClientDecorator.56)~[eureka-client-1.8.6.jar！/:1.8.6]访问shared.transport.decorator.eurekaHttpClientDecorator.java:59)~[eureka-client-1.8.6.jar！/:1.8.6]在>com.netflix.discovery.shared.transport.decorator.sessioneDeurekaHttpClient.exec>ute(SessioneDeurekaHttpClient.java:77)~[eureka-client-1.8.6.jar！/:1.8.6]在>com.netflix.discovery.shared.transport.decorator.eurekaHttpClientDecorator.regi>ster(EurekaHttpClientDecor.java:56)~[eureka-client-1.8.6.jar！/:1.8.6]在com.netflix.discovery.discoveryclient.register（discoveryclient.java:829)>~[eureka-client-1.8.6.jar！/:1.8.6]at>com.netflix.discovery.instanceInforePlicator.run(instanceInforePlicator.java:10>4)~[eureka-client-1.8.6.jar！/:1.8.6]at java.util.concurrent.executors$runnableadapter.call(executors.java:511)>[NA:1.8.0_151]at java.util.concurrent.futuretask.run(Futuretask.java:266)[NA:1.8.0_151]at>java.util.concurrent.scheduledThreadPoolExecutor$scheduledFuturetask.access$201>ThreadPoolExecutor.java:180)[NA:1.8.0_151]在>java.util.concurrent.ScheduledThreadPoolExecutor.run(SchedU>ledThreadPoolExecutor.java:293)[NA:1.8.0_151]在>java.util.concurrent.ThreadPoolExecutor.runworker(ThreadPoolExecutor.java:1149)>[NA:1.8.0_151]在>java.util.concurrent.ThreadPoolExecutor.java:624)>[NA:1.8.0_151]在>java.util.concurrent.ThreadPoolExecutor.run(Thread.java:7 48）[NA:1.8.0_151]

2018-04-11 15:38:50.043错误6---[tbeatExecutor-0]>C.N.D.S.T.D.RedirectingEurekaHttpClient：请求执行错误

Answer 1

尝试用eureka Server下的Application.Properties中的Spring.Application.Name=ServiceRegistry
eureka.Instance.hostName=ServiceRegistry替换。