配置 Prometheus 以监控多个微服务

Question

我想在 Docker-Compose 上监控一个 Spring Boot 微服务应用程序运行，其中包含 Prometheus 和 Grafana 的大约 20 个微服务。

最好的方法是什么：
1- 每个微服务都有一个包含多个目标的作业？

scrape_configs:
  - job_name: 'services-job'
    metrics_path: '/actuator/prometheus'
    scrape_interval: 5s
    static_configs:
      - targets: ['service-one:8080']
        labels:
          group: 'service-one' 
      - targets: ['service-two:8081']
        labels:
          group: 'service-two'

2- 有多个作业，每个服务都有一个目标？

scrape_configs:
  - job_name: 'service-one-job'
    metrics_path: '/actuator/prometheus'
    scrape_interval: 5s
    static_configs:
      - targets: ['service-one:8080']
        labels:
          group: 'service-one'
  - job_name: 'service-two-job'
    metrics_path: '/actuator/prometheus'
    scrape_interval: 5s
    static_configs:
      - targets: ['service-two:8081']
        labels:
          group: 'service-two'

Answer 1

您按工作对目标进行分组的方式与要抓取的端点数量无关。

您需要将具有相同目的的所有目标分组到同一作业中。这正是 documentation 所说的：

A collection of instances with the same purpose, a process replicated for scalability or reliability for example, is called a job.

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