基於spring-cloud-config的分散式git配置更新
阿新 • • 發佈：2018-11-27
首先我們新建一個模組server-config
需要安裝rabbitmq,用於推送配置
https://www.cnblogs.com/ericli-ericli/p/5902270.html
引入依賴：
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" 配置檔案設定：
需要注意git如果設定為私有倉庫，最好用ssh+key，RSA金鑰的生成方法就不在這裡贅述了，如果為公有的話，哪種方法都可以,這裡給出私有倉庫的方法
application.properties
#服務埠
server.port=8887
#服務名稱
spring.application.name=spring-cloud-config-server
#服務註冊中心
eureka.client.service-url.defaultZone=http://localhost:8881/eureka/
#服務的git倉庫地址
#支援兩種方法：一、url+賬號密碼 二、ssh+key
#此處使用ssh+key
#spring.cloud.config.server.git.uri=https://gitee.com/leftbehindmatches/spring-cloud-examples.git
#git的ssh地址
spring.cloud.config.server.git.uri=[email protected].com:leftbehindmatches/spring-cloud-examples.git
#可以使用本地的ssh配置，但這裡忽略本地的ssh設定，這裡使用遠端設定
spring.cloud.config.server.git.ignoreLocalSshSettings= true
#RSA私鑰 這裡需要拼接起來，全顯示綠色才正確， 首行需新增\n\ ,其他行新增\, 倒數第二行新增\n\，最後一行不用加
spring.cloud.config.server.git.privateKey=-----BEGIN RSA PRIVATE KEY-----\n\
MIIEpAIBAAKCAQEA1RtREwf+Gb8EM1brcax9BVMaSwzeUxZQ8ico2AOCK/mbKY4B\
n+tUqJHVUWtTqGx0DbEOjGbqPkwAfel7IZbA8GBn3D0ybDjHSB7dq445p6F7WTUA\
GzL8//loKlLqnS+p5dkB9M36T7pQIO4ic9EnqCtSeD67DYbnYhdG7WGzuvByA5YV\
Sky3CMJF1P0UtX1z7AKRt/MXsM7EaaCrtJOBplR8qOA4E53jU4e1ExZjMKvS8/om\
og7fby4udAKHJaIUsUwyIxlYpDpsL0rF8X2mKwRrlABh3dq4WD1jbu0IAzvk2xZs\
PkI30jS3rIE7TeFTXzopK4HU6Xn/sdrXyOOVeQIDAQABAoIBAQCKKi3EQvhRxPB6\
QK5hgs2DuD9hzTQPdnaAqTbn5k5tKGWa6YDQKAk5SWOeaBFTLw2HGvYtvUO9pBTl\
jYzRWCY7MqXjuqGIXL+HWMurQIjMz/ti+OPavpIde5w3ZI7L3m0uoiWMjEbvjgIJ\
****************************************************************
1po5gu5v/33dw97Fukm9cw+qs2RyX473FHXA4roRAoGAFcdyd15gxL7YqZHmqG1S\
fWn46fFl/QCjPLWqEsFAbK3OoNlId2o+BujiYOgZJX9RN0jvGfOvFoSjdUKfMrRI\
A1MCZidZnkCHPGeN1ELR9BLJriJYbWTYA4+dXfLS7KKqQJPS32vVvT1BYORYHO/E\
P8tybvfNseCTkGLvG6GsybkCgYEAiWuzHlzNL/TCQojOcK+H4a+JTxIc4gfPqDxl\
PS53gdnQKTea7aZQnE7ck+oT4DxDP0tdDKhRpBeycOktKXc7zjBsbKMVpeV/Pe58\
9bKFo2OLa06aMKzMO4gQIpacHq7fWS4MCW76K5LGubfCZoMu5P6ihN0evEgANbcq\
89zQIGECgYAM8ky1izFo6pz2tD6f9Uh+FkBi5ybS9EQPmXlLT01zTaMTNESWj6Vl\
RiJgYFSD79EFAvCn8hXMhHgd/wM1HW8X7wg8XnjhlaSzwfrzOtjt//G0t0MyDFqB\
hZ0WDHwwLhfWLBEaYR457m3v9xRr8uZvbso5JfBL4UWEvNxW41ubaw==\n\
-----END RSA PRIVATE KEY-----
#配置檔案所在的目錄 這裡需要注意的是根路徑spring-cloud-examples， 但是路徑開頭不需要橫杆\
spring.cloud.config.server.git.search-paths=spring-cloud-config/config-repo
#配置檔案所在的分支
spring.cloud.config.label=master
#這裡需要使用rabbitmq來進行重新整理
spring.rabbitmq.host=127.0.0.1
#rabbitmq的埠為5672，並不是瀏覽器檢視埠
spring.rabbitmq.port=5672
spring.rabbitmq.username=guest
spring.rabbitmq.password=guest
#匯流排重新整理
management.endpoints.web.exposure.include=bus-refresh
在github或者gitee上建立配置檔案存放地址：
這裡是使用gitee,存放在config-repo：
新建三個檔案，檔名為：a-config-dev.properties
name=match-1
version=dev
a-config-prod.properties
name=match-2
version=prod
a-config-test.properties
name=match-3
version=test
倉庫中的配置檔案會被轉換成web介面，訪問可以參照以下的規則：
/{application}/{profile}[/{label}]
/{application}-{profile}.yml
/{label}/{application}-{profile}.yml
/{application}-{profile}.properties
/{label}/{application}-{profile}.properties
以a-config-dev.properties為例子，它的application是a-config，profile是dev。client會根據填寫的引數來選擇讀取對應的配置。
依次啟動eureka-server,spring-cloud-config-server再呼叫
由於已經設定了配置檔案的根路徑了，這裡直接訪問即可
http://localhost:8887/a-config/test
可以看到瀏覽器返回
{"name":"a-config","profiles":["test"],"label":null,"version":"6d70c58fc75ac8b3f7a2218347c8be67352b710c","state":null,"propertySources":[{"name":"[email protected]:leftbehindmatches/spring-cloud-examples.git/spring-cloud-config/config-repo/a-config-test.properties","source":{"name":"match","age":"18","version":"test"}}]}
再次呼叫 http://localhost:8887/a-config/dev
可以看到讀取到dev的資訊
{"name":"a-config","profiles":["dev"],"label":null,"version":"6d70c58fc75ac8b3f7a2218347c8be67352b710c","state":null,"propertySources":[{"name":"[email protected]:leftbehindmatches/spring-cloud-examples.git/spring-cloud-config/config-repo/a-config-dev.properties","source":{"name":"match","age":"18","version":"dev"}}]}
改造eureka-client 為eureka-config
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<artifactId>eureka-config-client</artifactId>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
<file.encoding>UTF8</file.encoding>
<spring-cloud.version>Finchley.SR2</spring-cloud.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bus-amqp</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
這裡需要
application.properties與bootstrap.properties
不然會報錯,原因暫時沒找到
application.properties為空
東西都寫在bootstrap.properties
server.port=8888
spring.application.name=eureka-config
eureka.client.service-url.defaultZone=http://localhost:8881/eureka/
#這裡為配置檔案的名稱
spring.cloud.config.name=a-config
#這裡為配置檔案的字尾
spring.cloud.config.profile=dev
#spring.cloud.config.uri=http://localhost:8887/
spring.cloud.config.label=master
#開啟Config服務發現支援
spring.cloud.config.discovery.enabled=true
#指定server端的name,也就是server端spring.application.name的值
spring.cloud.config.discovery.serviceId=spring-cloud-config-server
## 重新整理時，關閉安全驗證
#Spring boot 2.0的改動較大，/bus/refresh全部整合到actuator裡面了，變成了/actuator/bus-refresh,所以之前1.x的management.security.enabled全部失效，不適用於2.0
#2.0的properties配置是這樣的：
management.endpoints.web.exposure.include=bus-refresh
## 開啟訊息跟蹤
spring.cloud.bus.trace.enabled=true
spring.rabbitmq.host=127.0.0.1
spring.rabbitmq.port=5672
spring.rabbitmq.username=guest
spring.rabbitmq.password=guest
application.java:
package top.littlematch.eureka.config;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
@SpringBootApplication
@EnableEurekaClient
@EnableDiscoveryClient
@RefreshScope
@RestController
public class EurekaConfigApplication {
public static void main(String[] args){
SpringApplication.run(EurekaConfigApplication.class, args);
}
@Value("${version}")
private String version;
@RequestMapping("/hello")
public String hello(@RequestParam(name = "name") String name) {
return "你好，" + name + "。版本號:" + version;
}
}
啟動eureka-config, 瀏覽器訪問：
http://localhost:8888/hello?name=match
你好，match。版本號:dev
修改a-config-dev.properties檔案
name=match_1
version=test
修改版本號後, push到git
使用連線重新整理配置
(2.0的重新整理連線變更為如下)
http://localhost:8888/actuator/bus-refresh
再次訪問, 已實現重新整理:
http://localhost:8888/hello?name=match
你好，match。版本號:test
gitee程式碼地址： https://gitee.com/leftbehindmatches/spring-cloud-examples/tree/master/spring-cloud-config