rancher eureka server 高可用问题，搞了一下午了

Question

我想在 Rancher 上做 3 个 Eureka server 服务

3 个服务在同一台 rancher agent 主机上

在 Eureka Server 中复制了 3 个配置文件：

application-docker1.yml
application-docker2.yml
application-docker3.yml
文件的内容在最下方，这 3 个文件中都是 server.port=8761

我的操作是这样的：

Rancher 中服务1：eureka-server1

8761:8761
spring.profiles.active=docker1

Rancher 中服务2：eureka-server2

8762:8761
spring.profiles.active=docker2

Rancher 中服务3：eureka-server3

8763:8761
spring.profiles.active=docker3

碰到的问题是：

启动 3 个服务时，它们打印的日志中一直显示不能连接其他两个地址。 配置文件中配置了一个服务注册到另外两个中：

eureka-server1：

eureka.client.service-url=

http://root:root@eureka-server2:8761/eureka/,http://root:root@eureka-server3:8761/eureka/

eureka-server2：

eureka.client.service-url=

http://root:root@eureka-server1:8761/eureka/,http://root:root@eureka-server3:8761/eureka/

eureka-server3：

eureka.client.service-url=

http://root:root@eureka-server2:8761/eureka/,http://root:root@eureka-server2:8761/eureka/

application-docker1.yml

spring:
  application:
    name: demo-spring-cloud-eureka
  security:
    user:
      name: root
      password: root

eureka:
  client:
    service-url:
      defaultZone: http://root:root@eureka-server2:8761/eureka/,http://root:root@eureka-server3:8761/eureka/
    register-with-eureka: false
#  server:
#    enable-self-preservation: false

server:
  port: 8761

application-docker2.yml

spring:
  application:
    name: demo-spring-cloud-eureka
  security:
    user:
      name: root
      password: root

eureka:
  client:
    service-url:
      defaultZone: http://root:root@eureka-server1:8761/eureka/,http://root:root@eureka-server3:8761/eureka/
    register-with-eureka: false
#  server:
#    enable-self-preservation: false

server:
  port: 8761

application-docker3.yml

spring:
  application:
    name: demo-spring-cloud-eureka
  security:
    user:
      name: root
      password: root

eureka:
  client:
    service-url:
      defaultZone: http://root:root@eureka-server1:8761/eureka/,http://root:root@eureka-server2:8761/eureka/
    register-with-eureka: false
#  server:
#    enable-self-preservation: false

server:
  port: 8761

Answer 1

廖师兄 2019-05-01 19:16:17

端口写错了，应该是
eureka-server2:8762/eureka/
eureka-server3:8763/eureka/,

• 提问者 dabo #1

  要写映射出来的端口吗？确实没试。
  但是不好理解啊，我理解的 eureka-server 是 docker 容器启动时设置的 hostname，通过 hostname 当然访问容器内部的 端口啊

• 提问者 dabo #2

  师兄，试过了，不行。
  单独新建了单台 eureka server 在 rancher 上，还是提示 RedirectingEurekaHttpClient  : Request execution error. endpoint=DefaultEndpoint{ serviceUrl='http://root:root@eureka-server:8761/eureka/}

• 提问者 dabo #3

  问题出在我添加一个依赖，因为想在 eureka 客户端注册时添加身份验证：
      <!-- spring boot security -->
      <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
      </dependency>

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