前面讲了安装jenkins exporter方式监控jenkins，但是grafana支持较少。

接下来，我们用Jenkins plugin的方式监控，这个方法部署简单，然后grafana支持比较完整。

首先，需要安装Jenkins，参照上一个文档完成。

1.安装Jenkins Plugin

2.检查插件配置

设置完成后重启Jenkins服务，并且访问jenkins的url查看指标情况

访问 http://192.168.0.107:8080/prometheus/

# HELP jvm_threads_current Current thread count of a JVM
# TYPE jvm_threads_current gauge
jvm_threads_current 34.0
# HELP jvm_threads_daemon Daemon thread count of a JVM
# TYPE jvm_threads_daemon gauge
jvm_threads_daemon 16.0
# HELP jvm_threads_peak Peak thread count of a JVM
# TYPE jvm_threads_peak gauge
jvm_threads_peak 47.0
# HELP jvm_threads_started_total Started thread count of a JVM
# TYPE jvm_threads_started_total counter
jvm_threads_started_total 73.0
# HELP jvm_threads_deadlocked Cycles of JVM-threads that are in deadlock waiting to acquire object monitors or ownable synchronizers
# TYPE jvm_threads_deadlocked gauge
jvm_threads_deadlocked 0.0

3. Prometheus监控Jenkins

Prometheus配置文件/etc/prometheus/prometheus.yml，添加如下内容:
scrape_configs:
    - job_name: "jenkins"
      metrics_path: "/prometheus/"
      scheme: http
      static_configs:
      - targets: ['192.168.0.107:8080']

这里如果用的是tls， 用下面的配置
scrape_configs:
  - job_name: 'jenkins'
    scheme: https # change to http if don't you have https
    metrics_path: '/prometheus/'
    static_configs:
      - targets: ['192.168.0.107:443'] # Jenkins host and port you serve
    tls_config:
      insecure_skip_verify: true

重启Prometheus
systemctl restart prometheus

检查Prometheus Target

4.Grafana模板

这里我使用模板 https://grafana.com/grafana/dashboards/9964

至此，完成Prometheus对Jenkins的监控。

推荐此方法。