基于SpringCloud微服务平台，进行服务实例监控及健康检查，注册中心为eureka，SpringBoot提供了很好的组件SpringBoot Admin，2.X版本直接可以配置钉钉机器人告警。

效果：可以实现eureka注册的实例上线、下线触发钉钉告警。监控我们的服务实例健康检查。

搭建admin-server

pom依赖

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.4.11</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.example</groupId>
	<artifactId>admin-server</artifactId>
	<version>1.0.0</version>
	<name>etc-admin-server</name>
	<description>Spring Boot Admin监控eureka服务实例和健康检查，钉钉告警</description>
	<properties>
		<java.version>1.8</java.version>
		<spring-boot-admin.version>2.4.3</spring-boot-admin.version>
		<spring-cloud.version>2020.0.4</spring-cloud.version>
	</properties>
	<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
		<dependency>
			<groupId>de.codecentric</groupId>
			<artifactId>spring-boot-admin-starter-server</artifactId>
		</dependency>
		<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-test</artifactId>
			<scope>test</scope>
		</dependency>
	</dependencies>
	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework.cloud</groupId>
				<artifactId>spring-cloud-dependencies</artifactId>
				<version>${spring-cloud.version}</version>
				<type>pom</type>
				<scope>import</scope>
			</dependency>
			<dependency>
				<groupId>de.codecentric</groupId>
				<artifactId>spring-boot-admin-dependencies</artifactId>
				<version>${spring-boot-admin.version}</version>
				<type>pom</type>
				<scope>import</scope>
			</dependency>
		</dependencies>
	</dependencyManagement>

	<build>
        <finalName>${project.name}</finalName>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>

application.yml配置

spring:
  application:
    name: admin-server
  security:
    user:
      name: "admin"
      password: "pwd"

  boot:
    admin:
      notify:
        dingtalk:
          enabled: true
          webhookUrl: 'https://oapi.dingtalk.com/robot/send?access_token=钉钉机器人access_token'
          secret: '钉钉机器人secret'
          message: '服务告警: #{instance.registration.name} #{instance.id} is #{event.statusInfo.status}'
server:
  port: 9002

eureka:
  client:
    registryFetchIntervalSeconds: 5
    service-url:
      defaultZone: 'http://127.0.0.1:8020/eureka/'
  instance:
    hostname: ${spring.cloud.client.ip-address}
    instance-id: ${spring.cloud.client.ip-address}:${server.port}
    prefer-ip-address: true
    ip-address: ${spring.cloud.client.ip-address}
    leaseRenewalIntervalInSeconds: 10
    health-check-url-path: /actuator/health
    metadata-map:
      user.name: ${spring.security.user.name}
      user.password: ${spring.security.user.password}

management:
  endpoints:
    web:
      exposure:
        include: "*"
  endpoint:
    health:
      show-details: ALWAYS

启动类

package com.example;

import de.codecentric.boot.admin.server.config.EnableAdminServer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

/**
 * @author xxx
 */
@EnableAdminServer
@EnableDiscoveryClient
@SpringBootApplication
public class AdminServerApplication {

	public static void main(String[] args) {
		SpringApplication.run(AdminServerApplication.class, args);
	}
}

config类

package com.example;

import de.codecentric.boot.admin.server.config.AdminServerProperties;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler;
import org.springframework.security.web.csrf.CookieCsrfTokenRepository;

/**
 * WebSecurity配置
 * @author xxxx
 */
@Configuration
public class WebSecurityConfigure extends WebSecurityConfigurerAdapter {

    private final String adminContextPath;

    public WebSecurityConfigure(AdminServerProperties adminServerProperties) {
        this.adminContextPath = adminServerProperties.getContextPath();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        // @formatter:off
        SavedRequestAwareAuthenticationSuccessHandler successHandler = new SavedRequestAwareAuthenticationSuccessHandler();
        successHandler.setTargetUrlParameter("redirectTo");
        successHandler.setDefaultTargetUrl(adminContextPath + "/");

        http.authorizeRequests()
                .antMatchers(adminContextPath + "/assets/**").permitAll()
                .antMatchers(adminContextPath + "/login").permitAll()
                .anyRequest().authenticated()
                .and()
                .formLogin().loginPage(adminContextPath + "/login").successHandler(successHandler).and()
                .logout().logoutUrl(adminContextPath + "/logout").and()
                .httpBasic().and()
                .csrf()
                .csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse())
                .ignoringAntMatchers(
                        adminContextPath + "/instances",
                        adminContextPath + "/actuator/**"
                );
        // @formatter:on
    }
}

启动后效果

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【文章出处:防御服务器 】