领事首先引导与春季云配置 [英] consul first bootstrap with spring cloud config

问题描述

Iam使用spring-cloud-config进行集中配置，并使用consul进行服务发现。像eureka first bootstrap一样-spring是否支持consul first bootstrap，即在启动客户端服务时-我应该通过consul查找配置服务器。反之，则可以正常工作，即-在配置客户端bootstrap.properties中-我提供 spring.cloud.config.uri = http：// localhost：8888 ，它找到了配置服务器并从中提取配置。并在我的客户端应用程序的配置库中-我提供以下consul配置：

Iam using spring-cloud-config for centralized configuration and consul for service discovery. Like eureka first bootstrap - does spring support consul first bootstrap i.e on booting up a client service - I should look up the config server through consul. The otherway round works perfectly fine i.e - in config client bootstrap.properties - I provide the spring.cloud.config.uri=http://localhost:8888 which located the config server and pulls config from it. And in the config repository for my client application - I provide the consul config like :

spring.cloud.consul.host=localhost , 
spring.cloud.consul.port=8500

但是，当我尝试使用时consul first bootstrap我无法从配置服务器读取属性。

However, when i try to use consul first bootstrap I am unable to read the properties from config server.

客户端应用程序（用于consul first bootstrap）：

Client Application (for consul first bootstrap):

pom.xml
<parent>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-parent</artifactId>
      <!-- <version>Brixton.BUILD-SNAPSHOT</version> -->
      <version>Brixton.M5</version>
      <relativePath /> 
    </parent>
<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.retry</groupId>
            <artifactId>spring-retry</artifactId>
        </dependency>
     <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-consul-config</artifactId>
        </dependency> 
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-consul-all</artifactId>
        </dependency>
<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-zuul</artifactId>
        </dependency>
</dependencies>

bootstrap.properties：

bootstrap.properties:

spring.application.name=demo
spring.cloud.config.failFast=true
spring.cloud.config.retry.maxAttempts=20
spring.cloud.config.retry.initialInterval=3000
spring.cloud.consul.host=localhost
spring.cloud.consul.port=8500

DemoApplication.java

DemoApplication.java

@EnableDiscoveryClient
@EnableZuulProxy
@SpringBootApplication
public class DemoSleuthApplication {
    public static void main(String[] args) {
        SpringApplication.run(DemoSleuthApplication.class, args);
    }
}
@RefreshScope
@RestController
class RestAPIController 
{
    @Value(value = "${server.port}")
    String port;

    @Value(value = "${message}")
    String message;

@RequestMapping("/message")
      public String welcome(){
          String s = this.restTemplate.getForObject("http://localhost:"+this.port+"/message", String.class);
          return this.message + s;
      }
}

在领事K / V商店
文件夹结构config / demo
键/值： spring.cloud.config.uri = http：// localhost：8888

In the consul K/V store folder structure config/demo Key/Value : spring.cloud.config.uri=http://localhost:8888

配置服务器git repo：不为简洁起见添加配置服务器代码
demo.properties

Config server git repo: not adding the config server code for brevity demo.properties

server.port=9080
message=test

理想情况下，我首先实施领事的概念引导程序-我认为应该启动领事，客户端应使用 @EnableDiscoveryClien t批注以及在领事属性中标识自己-查找配置服务器url，并获取配置属性从服务器配置。但就我而言，服务已在领事中发现并注册，但我无法从配置服务器git repo中读取属性。

Ideally when I implement the concept of consul first bootstrap - I am thinking consul should be started and the client should identify itself using the @EnableDiscoveryClient annotation and in the consul properties - find config server url , and fetch the config properties from the server configurations. But in my case, service is being discovered and registered in consul but i am not able to read properties from config server git repo.

推荐答案

已在此处完成。它在SNAPSHOTS和RC2中可用，希望在下周发布。

It was done here. It is available in SNAPSHOTS and in RC2 which will come hopefully next week.

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