SpringAdmin
目录
Spring Boot Actuator 的使用,Spring Boot Actuator 提供了对单个 Spring Boot 的监控,信息包含:应用状态、内存、线程、堆栈等等,比较全面的监控了 Spring Boot 应用的整个生命周期。
Spring Boot Admin 是一个
管理和监控 Spring Boot 应用程序的开源软件
。每个应用都认为是一个客户端,通过 HTTP 或者使用 Eureka 注册到 admin server 中进行展示,Spring Boot Admin UI 部分使用 VueJs 将数据展示在前端。
1. Admin Server
<dependencies>
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-starter-server</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
server.port=8000
@Configuration
@EnableAutoConfiguration
@EnableAdminServer
public class AdminServerApplication {
public static void main(String[] args) {
SpringApplication.run(AdminServerApplication.class, args);
}
}
2. Admin Client
<dependencies>
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-starter-client</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
server.port=8001
spring.application.name=Admin Client
spring.boot.admin.client.url=http://localhost:8000 #配置 Admin Server 的地址
management.endpoints.web.exposure.include=* # 打开客户端 Actuator 的监控。
server:
port: 8089
servlet:
context-path: /demo
spring:
application:
# Spring Boot Admin展示的客户端项目名,不设置,会使用自动生成的随机id
name: spring-boot-demo-admin-client
boot:
admin:
client:
# Spring Boot Admin 服务端地址
url: "http://localhost:8000/"
instance:
metadata:
# 客户端端点信息的安全认证信息
user.name: ${spring.security.user.name}
user.password: ${spring.security.user.password}
security:
user:
name: xkcoding
password: 123456
management:
endpoint:
health:
# 端点健康情况,默认值"never",设置为"always"可以显示硬盘使用情况和线程情况
show-details: always
endpoints:
web:
exposure:
# 设置端点暴露的哪些内容,默认["health","info"],设置"*"代表暴露所有可访问的端点
include: "*"
3.监控微服务
如果我们使用的是单个 Spring Boot 应用,就需要在每一个被监控的应用中配置 Admin Server 的地址信息;如果应用都注册在 Eureka 中就不需要再对每个应用进行配置,Spring Boot Admin 会自动从注册中心抓取应用的相关信息。
- 客户端&服务端依赖
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
- 服务器段
@Configuration
@EnableAutoConfiguration
@EnableDiscoveryClient
@EnableAdminServer
public class SpringBootAdminApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootAdminApplication.class, args);
}
@Configuration
public static class SecurityPermitAllConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests().anyRequest().permitAll()
.and().csrf().disable();
}
}
}
- 客户端配置
eureka:
instance:
leaseRenewalIntervalInSeconds: 10
health-check-url-path: /actuator/health
metadata-map:
startup: ${random.int} #needed to trigger info and endpoint update after restart
client:
registryFetchIntervalSeconds: 5
serviceUrl:
defaultZone: ${EUREKA_SERVICE_URL:http://localhost:8761}/eureka/
management:
endpoints:
web:
exposure:
include: "*"
endpoint:
health:
show-details: ALWAYS