Eureka 高可用集群搭建
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https://www.bilibili.com/video/BV1eU4y187zE/?p=13
最终效果:
编写一个项目通过不同的配置文件加载不同参数。
最后把集群部署到服务器上。集群设定有两个 Eureka Server,每个 Eureka Server 安装到不同的服务器上。
添加依赖
在集群中依赖和单机版是完全相同的。
为了后面打包发布到服务器中,所以同时也导入了 Spring Boot 打包插件。
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>
<groupId>io.github.jihch</groupId>
<artifactId>eureka-ha</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.3.RELEASE</version>
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR8</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- 由于已经依赖的 web 所以不需要单独再导入一次 web -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
application-eurekaserver1.yml
spring:
application:
# 名字不要是下划线,要中划线
name: eureka-server
server:
port: 8761
eureka:
instance:
# 和配置文件的 application-xxx.yml 相同
hostname: eurekaserver1
client:
service-url:
defaultZone: http://eurekaserver2:8761/eureka/
application-eurekaserver2.yml
spring:
application:
# 名字不要是下划线,要中划线
name: eureka-server
server:
port: 8761
eureka:
instance:
# 和配置文件的 application-xxx.yml 相同
hostname: eurekaserver2
client:
service-url:
defaultZone: http://eurekaserver1:8761/eureka/
hosts
192.168.0.120 eurekaserver1
192.168.0.100 eurekaserver2
server.sh
注册 Eureka client 到 Eureka Server 中
eureka-client
server:
port: 8081
eureka:
client:
service-url:
# 下面信息也是默认值
defaultZone: http://eurekaserver1:8761/eureka/,http://eurekaserver2:8761/eureka/