prometheus和grafana

prometheus配置信息

• mq
• eureka：使用注册中心对接减少了配置，不然每个模块都要配置一次，

集成eureka

global:
  scrape_interval: 5s

scrape_configs:
  - job_name: 'prometheus'
    static_configs:
      - targets: ['prometheus:9090']
  - job_name: 'linux-exporter'
    metrics_path: /metrics
    static_configs:
      - targets: ['192.168.1.101:9110']
  - job_name: rocketmq
    static_configs:
      - targets: ['192.168.1.101:5557']
        labels:
          instance: 192.168.1.101
  - job_name: 'eureka'
    metrics_path: '/actuator/prometheus' #springboot默认的actuator路径
    # Scrape Eureka itself to discover new services.
    eureka_sd_configs:
      - server: http://192.168.1.101:8000/eureka #这里是Eureka注册地址
        basic_auth:
          username: web
          password: 1
    relabel_configs:
      - source_labels: [__meta_eureka_app_instance_metadata_prometheus_path]
        action: replace
        target_label: __metrics_path__
        regex: (.+)
        # 增加一个自定义label sys_model 它的值从配置eureka中获取
      - source_labels: ["__meta_eureka_app_instance_metadata_sys_module"]
        action: replace
        target_label: sys_module
        regex: (.+)

访问prometheus:

springboot 客户端配置

启动类指定配置名称用来区分

@Bean
    MeterRegistryCustomizer<MeterRegistry> metricsCommonTags(@Value("${spring.application.name}") String applicationName) {
        return registry -> registry.config().commonTags("application", applicationName);
    }

eureka:
  instance:
    preferIpAddress: true
    # 向Server发送心跳间隔时间,单位为秒,默认为30
    lease-renewal-interval-in-seconds: 5
    # 过期清理时间,两次心跳间隔时间大于该值Server将剔除该服务,默认为90
    lease-expiration-duration-in-seconds: 20
    statusPageUrlPath: /doc.html
    instance-id: ${spring.cloud.client.ip-address}:${spring.application.name}:${server.port}
    metadata-map:
      version: test
      management:
        context-path: '/${spring.application.name}/actuator'
      # 集成到prometheus重新指定为下面配置的参数
      "prometheus.scrape": "true"
      "prometheus.path": "/${spring.application.name}/actuator/prometheus"
      "sys.module": "${spring.application.name}"
    ip-address: 192.168.1.203
  client:
    serviceUrl:
      defaultZone: http://web:1@${server.ip-address}:8000/eureka/
management:
  endpoints:
    web:
      exposure:
        include: "*"
  endpoint:
    health:
      show-details: always
    logfile:
      external-file: ./nr_cloud/logs/${spring.application.name}/${spring.application.name}_info.log
  # 不启用 Micrometer 与 Hystrix 结合的度量指标的收集，引入actuator会无法启动
  metrics:
    binders:
      hystrix:
        enabled: false

pom.xml

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-registry-prometheus</artifactId>
</dependency>

在grafana中展示 ，可以使用其他图表

自定义告警