[英]Monitoring Kubernetes persistent volumes usage with Prometheus
我有一個使用vSphere作為持久存儲提供程序的 K8s 1.7 集群。 我還部署了Prometheus 、 node_exporter和kube-state-metrics 。
我正在嘗試找到一種使用Prometheus監視持久卷使用情況的方法。 我已經為一些 PV 添加了自定義標簽,例如。 app=rabbitmq-0
等
如何將kube_persistentvolume_labels
與node_filesystem_size
指標結合kube_persistentvolume_labels
,以便我可以使用自定義標簽查詢 PV 使用情況?
附注。
我知道 K8s 1.8 直接從 kubelet 公開這些指標,如如何監控 kubernetes 持久卷的磁盤使用情況中所述? 但目前無法選擇集群升級。
從kube-state-metrics中的 ( v1.3.0 -rc.0 / 2018-03-23) 開始,添加了兩個可以相應地將PersistentVolume和PersistenVolumeClaims標簽轉換為 Prometheus 標簽的指標:
kube_persistentvolume_labels
kube_persistentvolumeclaim_lables
要獲取有關基於標簽實現指標聚合的更多詳細信息,請考慮閱讀以下文章:
在某些情況下,主機路徑無法掛載到 pod 或項目(命名空間)無法訪問節點,在這種情況下無法部署節點導出器,在這種情況下, volume_exporter會很有用。
您可以將其添加為側車
- name: volume-exporter
image: mnadeem/volume_exporter
imagePullPolicy: "Always"
args:
- --volume-dir=prometheus:/prometheus
ports:
- name: metrics-volume
containerPort: 9888
volumeMounts:
- mountPath: /prometheus
name: prometheus-data
readOnly: true
它將生成指標
# HELP volume_bytes_free Free size of the volume/disk
# TYPE volume_bytes_free gauge
volume_bytes_free{volume_name="bin",volume_path="/bin"} 4.341569536e+10
volume_bytes_free{volume_name="etc",volume_path="/etc"} 4.341569536e+10
# HELP volume_bytes_total Total size of the volume/disk
# TYPE volume_bytes_total gauge
volume_bytes_total{volume_name="bin",volume_path="/bin"} 6.391887872e+10
volume_bytes_total{volume_name="etc",volume_path="/etc"} 6.391887872e+10
# HELP volume_bytes_used Used size of volume/disk
# TYPE volume_bytes_used gauge
volume_bytes_used{volume_name="bin",volume_path="/bin"} 2.050318336e+10
volume_bytes_used{volume_name="etc",volume_path="/etc"} 2.050318336e+10
# HELP volume_exporter_build_info A metric with a constant '1' value labeled by version, revision, branch, and goversion from which volume_exporter was built.
# TYPE volume_exporter_build_info gauge
volume_exporter_build_info{branch="",goversion="go1.15",revision="",version=""} 1
# HELP volume_percentage_used Percentage of volume/disk Utilization
# TYPE volume_percentage_used gauge
volume_percentage_used{volume_name="bin",volume_path="/bin"} 32.07688208958619
volume_percentage_used{volume_name="etc",volume_path="/etc"} 32.07688208958619
有關更多詳細信息,請參閱此
免責聲明:我是業主
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.