背景：

traefik搭建形式如下：
https://www.yuque.com/duiniwukenaihe/ehb02i/odflm7 。
Prometheus-oprator搭建形式如下：
https://www.yuque.com/duiniwukenaihe/ehb02i/tm6vl7。
Prometheus的文档写了grafana增加了traefik的监控模板。然而当初认真一看。traefik的监控图是空的，Prometheus的 target也没有对应traefik的监控。
当初配置下增加traefik服务发现以及验证一下grafana的图表。

1. Prometheus Operator 监控 Traefik V2.4

1.1. Traefik 配置文件设置 Prometheus

参照https://www.yuque.com/duiniwukenaihe/ehb02i/odflm7。配置中默认开启了默认的Prometheus监控。

https://doc.traefik.io/traefik/observability/metrics/prometheus/可参照traefik官网文档。

1.2、Traefik Service 设置标签

1.2.1 查看traefik service

$  kubectl get svc -n kube-systemNAME                          TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)                        AGEcilium-agent                  ClusterIP   None             <none>        9095/TCP                       15detcd-k8s                      ClusterIP   None             <none>        2379/TCP                       8dhubble-metrics                ClusterIP   None             <none>        9091/TCP                       15dhubble-relay                  ClusterIP   172.254.38.50    <none>        80/TCP                         15dhubble-ui                     ClusterIP   172.254.11.239   <none>        80/TCP                         15dkube-controller-manager       ClusterIP   None             <none>        10257/TCP                      8dkube-controller-manager-svc   ClusterIP   None             <none>        10252/TCP                      6dkube-dns                      ClusterIP   172.254.0.10     <none>        53/UDP,53/TCP,9153/TCP         15dkube-scheduler                ClusterIP   None             <none>        10259/TCP                      8dkube-scheduler-svc            ClusterIP   None             <none>        10251/TCP                      6dkubelet                       ClusterIP   None             <none>        10250/TCP,10255/TCP,4194/TCP   8dtraefik                       ClusterIP   172.254.12.88    <none>        80/TCP,443/TCP,8080/TCP        11d

1.2.2、编辑该 Service 设置 Label

 kubectl edit service traefik -n kube-system

设置 Label “app: traefik”

参照的是traefik-deploy.yaml 中的app:traefik这个标签用了，当然了也能够本人定义下用下别的......

1.3、Prometheus Operator 配置监控规定

traefik-service-monitoring.yaml

apiVersion: monitoring.coreos.com/v1kind: ServiceMonitormetadata:  name:  traefik  namespace: monitoring  labels:     app: traefikspec:  jobLabel: traefik-metrics  selector:    matchLabels:      app: traefik  namespaceSelector:    matchNames:    - kube-system  endpoints:  - port: admin    path: /metrics

创立该Service Monitor

$ kubectl apply -f traefik-monitor.yaml

1.4、查看 Prometheus target规定是否失效

1.5 查看grafana中的traefik仪表盘是否有数据生成图表

嗯这也算是增加target的一个例子。下次写下配置下主动发现规定？