使用prometheus採集ingress-nginx數據grafan展示效果

參考文檔

https://akomljen.com/get-kubernetes-cluster-metrics-with-prometheus-in-5-minutes/
https://github.com/kubernetes/ingress-nginx/tree/f56e839134fd4a1d020c3e95d4fe89496225041c/deploy/grafana/dashboards
https://github.com/kubernetes/ingress-nginx/tree/f56e839134fd4a1d020c3e95d4fe89496225041c/deploy/monitoring

文檔目錄

• kubernetes1.13.1+etcd3.3.10+flanneld0.10集羣部署
• kubernetes1.13.1部署kuberneted-dashboard v1.10.1
• kubernetes1.13.1部署coredns
• kubernetes1.13.1部署ingress-nginx並配置https轉發dashboard
• kubernetes1.13.1部署metrics-server0.3.1
• kubernetes1.13.1集羣使用ceph rbd存儲塊
• kubernetes1.13.1集羣結合ceph rbd部署最新版本jenkins

部署monitoring

在ingress-nginx官網deploy/monitoring目錄下載相關yaml文件

[root@elasticsearch01 monitoring]# pwd
/k8s/yaml/ingress-nginx/monitoring
[root@elasticsearch01 monitoring]# ls
configuration.yaml  grafana.yaml  prometheus.yaml

使用kubectl部署prometheus和grafana容器pod

[root@elasticsearch01 monitoring]# kubectl create -f ./
configmap/prometheus-configuration created
deployment.extensions/grafana created
service/grafana created
role.rbac.authorization.k8s.io/prometheus-server created
serviceaccount/prometheus-server created
rolebinding.rbac.authorization.k8s.io/prometheus-server created
deployment.apps/prometheus-server created
service/prometheus-server created

查看對外暴露端口，服務以NoderPort方式對外提供服務
prometheus訪問地址爲：http://10.2.8.65:37941
grafana訪問地址爲：http://10.2.8.34:32358
以上服務也可以部署ingress服務，通過域名訪問

[root@elasticsearch01 monitoring]# kubectl get pods,svc -n ingress-nginx -o wide|egrep "grafana|prome"
pod/grafana-69549786b6-69sqm                    1/1     Running   0          14m     10.254.73.6   10.2.8.34   <none>           <none>
pod/prometheus-server-8658d8cdbb-8kf2g          1/1     Running   0          14m     10.254.35.7   10.2.8.65   <none>           <none>
service/grafana             NodePort       10.254.108.105   <none>        3000:32358/TCP               14m     app.kubernetes.io/name=grafana,app.kubernetes.io/part-of=ingress-nginx
service/prometheus-server   NodePort       10.254.155.29    <none>        9090:37941/TCP               14m     app.kubernetes.io/name=prometheus,app.kubernetes.io/part-of=ingress-nginx

配置grafana

在ingress-nginx官網deploy/grafana/dashboards目錄下載相關nginx.json文件

配置prometheus數據源

導入dashboard

最終展示效果如下