Monitor

kube-prometheus-stack的使用

Posted by 胡伟煌 on 2023-05-18

1. kube-prometheus-stack简介

kube-prometheus-stack是prometheus监控k8s集群的套件，可以通过helm一键安装，同时带有监控的模板。

各组件包括

  • grafana
  • kube-state-metrics
  • prometheus
  • alertmanager
  • node-exporter

2. 安装kube-prometheus-stack

执行以下命令

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helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm repo update

helm install kube-prometheus-stack prometheus-community/kube-prometheus-stack -n prometheus

示例：

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# helm install kube-prometheus-stack  prometheus-community/kube-prometheus-stack -n prometheus
NAME: kube-prometheus-stack
LAST DEPLOYED: Wed May 17 17:12:24 2023
NAMESPACE: prometheus
STATUS: deployed
REVISION: 1
NOTES:
kube-prometheus-stack has been installed. Check its status by running:
  kubectl --namespace prometheus get pods -l "release=kube-prometheus-stack"

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

3. 查看安装结果

  • deployment

    • kube-prometheus-stack-grafana
    • kube-prometheus-stack-kube-state-metrics
    • kube-prometheus-stack-operator

  • statefulset

    • prometheus-kube-prometheus-stack-prometheus
    • alertmanager-kube-prometheus-stack-alertmanager

  • daemonset

    • kube-prometheus-stack-prometheus-node-exporter
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# kg all -n prometheus
NAME                                                            READY   STATUS    RESTARTS   AGE
pod/alertmanager-kube-prometheus-stack-alertmanager-0           2/2     Running   0          9m34s
pod/kube-prometheus-stack-grafana-5bb7689dc8-lgrws              3/3     Running   0          9m35s
pod/kube-prometheus-stack-kube-state-metrics-5d6578867c-25xbq   1/1     Running   0          9m35s
pod/kube-prometheus-stack-operator-9c5fbdc68-nrn7h              1/1     Running   0          9m35s
pod/kube-prometheus-stack-prometheus-node-exporter-8ghd8        1/1     Running   0          48s
pod/kube-prometheus-stack-prometheus-node-exporter-brtp9        1/1     Running   0          29s
pod/kube-prometheus-stack-prometheus-node-exporter-n4kdp        1/1     Running   0          88s
pod/kube-prometheus-stack-prometheus-node-exporter-ttksv        1/1     Running   0          35s
pod/prometheus-kube-prometheus-stack-prometheus-0               2/2     Running   0          9m34s

NAME                                                     TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)                      AGE
service/alertmanager-operated                            ClusterIP   None             <none>        9093/TCP,9094/TCP,9094/UDP   9m34s
service/kube-prometheus-stack-alertmanager               ClusterIP   10.99.108.180    <none>        9093/TCP                     9m36s
service/kube-prometheus-stack-grafana                    ClusterIP   10.110.62.28     <none>        80/TCP                       9m36s
service/kube-prometheus-stack-kube-state-metrics         ClusterIP   10.110.105.139   <none>        8080/TCP                     9m35s
service/kube-prometheus-stack-operator                   ClusterIP   10.96.147.204    <none>        443/TCP                      9m36s
service/kube-prometheus-stack-prometheus                 ClusterIP   10.98.235.203    <none>        9090/TCP                     9m36s
service/kube-prometheus-stack-prometheus-node-exporter   ClusterIP   10.105.99.77     <none>        9100/TCP                     9m36s
service/prometheus-operated                              ClusterIP   None             <none>        9090/TCP                     9m34s

NAME                                                            DESIRED   CURRENT   READY   UP-TO-DATE   AVAILABLE   NODE SELECTOR   AGE
daemonset.apps/kube-prometheus-stack-prometheus-node-exporter   4         4         4       4            4           <none>          9m35s

NAME                                                       READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/kube-prometheus-stack-grafana              1/1     1            1           9m35s
deployment.apps/kube-prometheus-stack-kube-state-metrics   1/1     1            1           9m35s
deployment.apps/kube-prometheus-stack-operator             1/1     1            1           9m35s


NAME                                                               READY   AGE
statefulset.apps/alertmanager-kube-prometheus-stack-alertmanager   1/1     9m34s
statefulset.apps/prometheus-kube-prometheus-stack-prometheus       1/1     9m34s

4. 登录grafana

默认账号密码

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账号：admin
密码：prom-operator

默认账号密码位于secret中，通过base64解码可得上述密码。

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kg secret -n prometheus kube-prometheus-stack-grafana -oyaml
apiVersion: v1
data:
  admin-password: cHJvbS1vcGVyYXRvcg==
  admin-user: YWRtaW4=

模板内容：

pod数据：

参考：


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