安装prometheus

[root@node-01 ~]# helm install prometheus   prometheus-community/kube-prometheus-stack -n prometheus
NAME: prometheus
LAST DEPLOYED: Fri Jul 31 15:41:54 2026
NAMESPACE: prometheus
STATUS: deployed
REVISION: 1
DESCRIPTION: Install complete
TEST SUITE: None
NOTES:
kube-prometheus-stack has been installed. Check its status by running:
  kubectl --namespace prometheus get pods -l "release=prometheus"

Get Grafana 'admin' user password by running:

  kubectl --namespace prometheus get secrets prometheus-grafana -o jsonpath="{.data.admin-password}" | base64 -d ; echo

Access Grafana local instance:

  export POD_NAME=$(kubectl --namespace prometheus get pod -l "app.kubernetes.io/name=grafana,app.kubernetes.io/instance=prometheus" -oname)
  kubectl --namespace prometheus port-forward $POD_NAME 3000

Get your grafana admin user password by running:

  kubectl get secret --namespace prometheus -l app.kubernetes.io/component=admin-secret -o jsonpath="{.items[0].data.admin-password}" | base64 --decode ; echo


Visit https://github.com/prometheus-operator/kube-prometheus for instructions on how to create & configure Alertmanager and Prometheus instances using the Operator.

　　

 

 

• 加sm资源

root@node-91:~/zxq# cat monitor.yaml 
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: nvidia-dcgm-exporter
  namespace: monitoring 
  labels:
    app: nvidia-dcgm-exporter
    release: prometheus  
spec:
  selector:
    matchLabels:
      app: nvidia-dcgm-exporter
  namespaceSelector:
    matchNames:
      - gpu-operator
  endpoints:
    - port: gpu-metrics       # DCGM exporter 默认端口名，如果不同请替换
      interval: 15s
      path: /metrics

labels 标签release: prometheus  是因为： 

 

# 1. 集群里有哪些 Prometheus 实例（通常 kube-prometheus-stack 装的那个）
kubectl get prometheus -A

# 2. 看它的 serviceMonitorSelector / serviceMonitorNamespaceSelector（关键）
kubectl get prometheus -A -o yaml | grep -E "^  name:|namespace:|serviceMonitorSelector|serviceMonitorNamespaceSelector" -A 8

　　

参考资料
https://cloud.baidu.com/article/3822128