Question

我的微服务很少：

APIGateway ：使用zuul代理的所有请求的通用网关

ConfigService ：类似于属性文件的配置服务器

RegistryService ：带有eureka服务器的服务注册表

HomePageService ：1个已在eureka和config-service中注册的服务

ProductService ：1个已在eureka和config-service中注册的服务

当我按照本地顺序运行时： RegistryService-> ConfigService然后再使用APIGateway，HomePageService，ProductService的所有服务，即可正常使用。

现在，我通过提供配置来创建docker映像，并在docker容器中运行并推送到GCR。我已经为Google Cloud创建了帐户（免费使用1年），并且能够查看回购中的图片。

好的，但是我该如何在GKE中部署这些映像。我单独运行并部署，但没有链接。部署这些服务的方式是什么？

kubectl run service-registry --image=gcr.io/salesstock/service-registry:v1 --port=7002
kubectl expose deployment service-registry --name=service-registry  --type=LoadBalancer --port=7002 --target-port=7002

我尝试了一些东西，并分享了一些代码片段。

RegistryService属性：

spring:
  profiles: 
    active: dev
  application:
    name: registry-service       
server:
  port: 7002      
eureka:
  instance:
    hostname: localhost
    port: 7002
  client:
    register-with-eureka: false
    fetch-registry: false
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${eureka.instance.port}/eureka/     

#======docker======
---    
spring:
  profiles: docker

eureka:
  instance:
    hostname: 192.168.99.100
    port: 7002
  client:
    register-with-eureka: false
    fetch-registry: false
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${eureka.instance.port}/eureka/

APIGateway属性：

spring: 
  profiles:
    active: dev
  application:
    name: api-gateway
  cloud:
    config:
      fail-fast: true
      discovery:
        enabled: true
        service-id: config-service
#      uri: http://localhost:8888    
server:
  port: 7001      
eureka:
  instance:
    hostname: localhost
    port: 7002
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${eureka.instance.port}/eureka/          

#======docker======
---    
spring:
  profiles: docker
  cloud:
    config:
      fail-fast: true
      discovery:
        enabled: true
        service-id: config-service
#       uri: http://192.168.99.100:8888

eureka:
  instance:
    hostname: 192.168.99.100
    port: 7002
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${eureka.instance.port}/eureka/

ConfigService属性：

spring:
  profiles:
    active: dev
  application:
    name: config-service
  cloud:
    config:
      server:
        git:
          uri:  git url 
          search-paths: ConfigFiles
server:
  port: 8888
management:
  security:
    enabled: false

eureka:
  instance:
    hostname: service-registry
    port: 7002
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${eureka.instance.port}/eureka/              

#======docker======
---    
spring:
  profiles: docker
  cloud:
    config:
      server:
        git:
          uri: git repo
          search-paths: ConfigFiles          
eureka:
  instance:
    hostname: 192.168.99.100
    port: 7002
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${eureka.instance.port}/eureka/

HomePageService属性：

spring:
  profiles:
    active: dev
  application:
    name: homepage-service
  cloud:
    config:
      fail-fast: true
      discovery:
        enabled: true
        service-id: config-service
#      uri: http://localhost:8888

server:
  port: 7003

#for dynamic port
#server:
#  port: 0   
feign:
  client:
    config:
      default:
        connectTimeout: 160000000
        readTimeout: 160000000
management:
  security:
    enabled: false
##  endpoints:
##    web:
##      exposure:
##        include: *
eureka:
  instance:
    hostname: localhost
    port: 7002
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${eureka.instance.port}/eureka/                    

#======docker======
---    
spring:
  profiles: docker
  cloud:
    config:
      fail-fast: true
      discovery:
        enabled: true
        service-id: config-service
#       uri: http://192.168.99.100:8888

eureka:
  instance:
    hostname: 192.168.99.100
    port: 7002
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${eureka.instance.port}/eureka/

对于Docker映像示例：

  FROM openjdk:8
    EXPOSE 7003
    ADD /target/homepage-service.jar homepage-service.jar
    ENTRYPOINT ["java","-Dspring.profiles.active=docker", "-jar", "homepage-service.jar"]

Answer 1

您可以通过在podspec of the k8s resource中定义容器来部署Docker容器。您已经使用kubectl run命令执行了此操作。

然后您expose the pods using services，这就是您使用kubectl暴露所做的事情（此默认值是ClusterIP，非常适合于内部pod通信）

这对您不起作用的原因是每个容器尝试到达其他容器的方式。 Localhost无法正常工作。您正在使用的IP（192.168.x.x）可能也不起作用。

相反，将每个容器配置为以the FQDN of the corresponding service为目标。示例：

RegistryService-> ConfigService

使用ClusterIP服务公开ConfigService（如果使用kubectl暴露，则名称为ConfigService）。
配置注册表服务以使用“ ConfigService.default.svc.cluster.local”寻找ConfigService

如何在Google Cloud Kubernates中部署Docker映像

1 个答案: