prometheus metrics caoyingjunz#231

README.md

@@ -5,13 +5,11 @@
 [![License][license-image]][license-url]
 
 ## Overview
-
 This driver allows Kubernetes to access LocalStorage on Linux node.
 
 ## Getting Started
 
 ### Installation
-
 - 选择运行 `localstorage` 的 `kubernetes` 节点
   ```shell
   kubectl  label node <node-name> storage.caoyingjunz.io/node=
@@ -80,28 +78,27 @@ Table of exported metrics:
 | `localstorage_controller_volumes_total` | Gauge | HELP localstorage_controller_volume_size The size of each volume in localstorage       |
 | `localstorage_controller_volume_size`   | Gauge | HELP localstorage_controller_volumes_total The total number of volumes in localstorage |
 
-## Feature
+## Prometheus
 
+The Prometheus configuration to scrape metrics from Logstash-exporter on Kubernetes is available
+at [prometheus.yml](./docs/prometheus.yml).
+
+
+## Feature
 - Schedule with volume status
 - Volume metrics
 
 ## 学习分享
-
 - [go-learning](https://github.com/caoyingjunz/go-learning)
 
 ## 沟通交流
-
 - 搜索微信号 `yingjuncz`, 备注（ls）, 验证通过会加入群聊
 - [bilibili](https://space.bilibili.com/3493104248162809?spm_id_from=333.1007.0.0) 技术分享
 
 Copyright 2019 caoyingjun ([email protected]) Apache License 2.0
 
 [build-url]: https://github.com/caoyingjunz/csi-driver-localstorage/actions/workflows/ci.yml/badge.svg
-
 [release-image]: https://img.shields.io/badge/release-download-orange.svg
-
 [release-url]: https://www.apache.org/licenses/LICENSE-2.0.html
-
 [license-image]: https://img.shields.io/badge/license-Apache%202-4EB1BA.svg
-
 [license-url]: https://www.apache.org/licenses/LICENSE-2.0.html

cmd/localstorage-controller/main.go

@@ -25,7 +25,6 @@ import (
 	"strconv"
 	"time"
 
-	k8sRuntime "k8s.io/apimachinery/pkg/util/runtime"
 	"k8s.io/apimachinery/pkg/util/uuid"
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/apiserver/pkg/server/healthz"
@@ -178,7 +177,6 @@ func main() {
 		}
 
 		go func() {
-			defer k8sRuntime.HandleCrash()
 			err = http.ListenAndServe(net.JoinHostPort("", strconv.Itoa(*metricsPort)), mux)
 			if err != nil {
 				klog.ErrorS(err, "Failed to start metrics server")

docs/prometheus.yml

@@ -0,0 +1,8 @@
+global:
+  scrape_interval: 10s # 采样周期
+  evaluation_interval: 10s # 告警规则计算周期
+
+scrape_configs:
+  - job_name: 'localstorage_controller'
+    static_configs:
+      - targets: [ '<pixiu-ls-controller>:10259' ] # 10259 is metrics port