fix link

fix badge again
fix badge
2025-12-18 04:51:02 +01:00 · 2025-11-05 09:02:51 +01:00 · 2025-10-31 23:21:56 +01:00 · 2025-10-31 23:21:22 +01:00 · 2025-10-31 22:55:16 +01:00 · 2025-10-31 22:29:44 +01:00
16 changed files with 888 additions and 80 deletions
--- a/.goreleaser.yaml
+++ b/.goreleaser.yaml
@@ -0,0 +1,65 @@
+# vim: set ts=2 sw=2 tw=0 fo=cnqoj
+
+version: 2
+
+before:
+  hooks:
+    - go mod tidy
+
+gitea_urls:
+  api: https://codeberg.org/api/v1
+  download: https://codeberg.org
+  
+builds:
+  - env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - freebsd
+
+archives:
+  - formats: [tar.gz]
+    # this name template makes the OS and Arch compatible with the results of `uname`.
+    name_template: >-
+      {{ .ProjectName }}_
+      {{- title .Os }}_
+      {{- if eq .Arch "amd64" }}x86_64
+      {{- else if eq .Arch "386" }}i386
+      {{- else }}{{ .Arch }}{{ end }}
+      {{- if .Arm }}v{{ .Arm }}{{ end }}_{{ .Tag }}
+    # use zip for windows archives
+    format_overrides:
+      - goos: windows
+        formats: [zip]
+      - goos: linux
+        formats: [tar.gz,binary]
+    files:
+      - src: "*.md"
+        strip_parent: true
+      - src: Makefile.dist
+        dst: Makefile
+    wrap_in_directory: true
+
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - "^docs:"
+      - "^test:"
+  groups:
+    - title: Improved
+      regexp: '^.*?(feat|add|new)(\([[:word:]]+\))??!?:.+$'
+      order: 0
+    - title: Fixed
+      regexp: '^.*?(bug|fix)(\([[:word:]]+\))??!?:.+$'
+      order: 1
+    - title: Changed
+      order: 999
+
+release:
+  header: "# Release Notes"
+  footer: >-
+
+    ---
+
+    Full Changelog: [{{ .PreviousTag }}...{{ .Tag }}](https://codeberg.org/scip/io-exporter/compare/{{ .PreviousTag }}...{{ .Tag }})
--- a/.woodpecker/build.yaml
+++ b/.woodpecker/build.yaml
@@ -0,0 +1,27 @@
+matrix:
+  platform:
+    - linux/amd64
+  goversion:
+    - 1.24
+
+labels:
+  platform: ${platform}
+    
+steps:
+  build:
+    when:
+      event: [push]
+    image: golang:${goversion}
+    commands:
+      - go get
+      - go build
+      - go test
+
+  linter:
+    when:
+      event: [push]
+    image: golang:${goversion}
+    commands:
+      - curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/HEAD/install.sh | sh -s -- -b $(go env GOPATH)/bin v2.5.0
+      - golangci-lint --version
+      - golangci-lint run ./...
--- a/.woodpecker/image.yaml
+++ b/.woodpecker/image.yaml
@@ -0,0 +1,32 @@
+# https://woodpecker-ci.org/plugins/docker-buildx
+# enable Package unit and go to /scip/-/packages after building to link to proj
+
+variables:
+  - &repo codeberg.org/${CI_REPO_OWNER}/io-exporter
+
+steps:
+  dryrun:
+    image: docker.io/woodpeckerci/plugin-docker-buildx:latest
+    settings:
+      dockerfile: Dockerfile
+      platforms: linux/amd64
+      dry_run: true
+      repo: *repo
+      tags: latest
+    when:
+      event: [pull_request]
+
+  publish:
+    image: docker.io/woodpeckerci/plugin-docker-buildx:latest
+    settings:
+      dockerfile: Dockerfile
+      platforms: linux/amd64
+      repo: *repo
+      registry: codeberg.org
+      tags: latest,${CI_COMMIT_SHA:0:8},${CI_COMMIT_TAG}
+      username: ${CI_REPO_OWNER}
+      password:
+        from_secret: REGISTRY_TOKEN
+    when:
+      event: [tag]
+      branch: main
--- a/.woodpecker/release.yaml
+++ b/.woodpecker/release.yaml
@@ -0,0 +1,15 @@
+# build release
+
+labels:
+  platform: linux/amd64
+    
+steps:
+  goreleaser:
+    image: goreleaser/goreleaser
+    when:
+      event: [tag]
+    environment:
+      GITEA_TOKEN:
+        from_secret: DEPLOY_TOKEN
+    commands:
+      - goreleaser release --clean --verbose
--- a/2
+++ b/2
@@ -1,4 +1,4 @@
-FROM golang:1.24-alpine as builder
+FROM golang:1.24-alpine AS builder

 RUN apk update
 RUN apk upgrade
--- a/Makefile.dist
+++ b/Makefile.dist
@@ -0,0 +1,18 @@
+# -*-make-*-
+
+.PHONY: install all
+
+tool   = epuppy
+PREFIX = /usr/local
+UID    = root
+GID    = 0
+
+all:
+	@echo "Type 'sudo make install' to install the tool."
+	@echo "To change prefix, type 'sudo make install PREFIX=/opt'"
+
+install:
+	install -d -o $(UID) -g $(GID) $(PREFIX)/bin
+	install -d -o $(UID) -g $(GID) $(PREFIX)/share/doc
+	install -o $(UID) -g $(GID) -m 555 $(tool)  $(PREFIX)/sbin/
+	install -o $(UID) -g $(GID) -m 444 *.md $(PREFIX)/share/doc/
--- a/README.md
+++ b/README.md
@@ -1,3 +1,7 @@
+[![status-badge](https://ci.codeberg.org/api/badges/15500/status.svg?branch=main)](https://ci.codeberg.org/repos/15500)
+[![License](https://img.shields.io/badge/license-GPL-blue.svg)](https://codeberg.org/scip/io-exporter/raw/branch/main/LICENSE)
+[![Go Report Card](https://goreportcard.com/badge/codeberg.org/scip/io-exporter)](https://goreportcard.com/report/codeberg.org/scip/io-exporter)
+
 # io-exporter

 Report if a given filesystem is operating properly
@@ -84,12 +88,21 @@ docker compose run -v ./t:/pvc ioexporter /pvc/testfile
 Or use the pre-build image:

 ```default
-docker run -u `id -u $USER` -v ./t:/pvc ghcr.io/tlinden/io-exporter:latest /pvc/testfile
+docker run -u `id -u $USER` -v ./t:/pvc codeberg.org/scip/io-exporter:latest /pvc/testfile
 ```

+## Grafana
+
+I provide a [sample dashboard](grafana), which you can add to your grafana or use
+as a starting point to integrate it into your monitoring setup.
+
+It looks like this:
+
+![Screenshot](https://codeberg.org/scip/io-exporter/raw/branch/main/grafana/screenshot.png)
+
 # Report bugs

-[Please open an issue](https://github.com/TLINDEN/io-exporter/issues). Thanks!
+[Please open an issue](https://codeberg.org/scip/io-exporter/issues). Thanks!

 # License

--- a/1
+++ b/1
@@ -1 +0,0 @@
-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
--- a/cmd/config.go
+++ b/cmd/config.go
@@ -15,7 +15,7 @@ import (
 )

 const (
-	Version = `v0.0.5`
+	Version = `v0.0.8`
 	SLEEP   = 5
 	Usage   = `io-exporter [options] <file>
 Options:
--- a/cmd/exporter.go
+++ b/cmd/exporter.go
@@ -6,38 +6,101 @@ import (
 	"io"
 	"log/slog"
 	"os"
+	"sync"
 	"time"

 	"github.com/ncw/directio"
 )

-func report(err error, fd *os.File) bool {
-	slog.Debug("failed to check io", "error", err)
-
-	if fd != nil {
-		if err := fd.Close(); err != nil {
-			slog.Debug("failed to close filehandle", "error", err)
-		}
-	}
-
-	return false
+// our primary container for the io checks
+type Exporter struct {
+	conf    *Config
+	alloc   *Alloc
+	metrics *Metrics
 }

-// Calls runcheck* with timeout
-func runExporter(file string, alloc *Alloc, timeout time.Duration, op int) bool {
+type Result struct {
+	result  bool
+	elapsed float64
+}
+
+func NewExporter(conf *Config, alloc *Alloc, metrics *Metrics) *Exporter {
+	return &Exporter{
+		conf:    conf,
+		alloc:   alloc,
+		metrics: metrics,
+	}
+}
+
+// starts the primary go-routine, which will run the io checks for ever
+func (exp *Exporter) RunIOchecks() *sync.WaitGroup {
+	var wg sync.WaitGroup
+	wg.Add(1)
+
+	go func() {
+		for {
+			var res_r, res_w Result
+
+			exp.alloc.Clean()
+
+			if exp.conf.WriteMode {
+				res_w = exp.measure(O_W)
+				slog.Debug("elapsed write time", "elapsed", res_w.elapsed, "result", res_w.result)
+			}
+
+			if exp.conf.ReadMode {
+				res_r = exp.measure(O_R)
+				slog.Debug("elapsed read time", "elapsed", res_r.elapsed, "result", res_r.result)
+			}
+
+			if (exp.conf.WriteMode && exp.conf.ReadMode) && (res_r.result && res_w.result) {
+				if !exp.alloc.Compare() {
+					res_r.result = false
+				}
+			}
+
+			exp.metrics.Set(res_r, res_w)
+
+			time.Sleep(time.Duration(exp.conf.Sleeptime) * time.Second)
+		}
+	}()
+
+	return &wg
+}
+
+// call an io measurement and collect time needed
+func (exp *Exporter) measure(mode int) Result {
+	start := time.Now()
+
+	result := exp.runExporter(mode)
+
+	// ns => s
+	now := time.Now()
+	elapsed := float64(now.Sub(start).Nanoseconds()) / 10000000000
+
+	// makes no sense to measure latency if operation failed
+	if !result {
+		elapsed = 0
+	}
+
+	return Result{elapsed: elapsed, result: result}
+}
+
+// Calls runcheck's with context timeout
+func (exp *Exporter) runExporter(mode int) bool {
 	ctx := context.Background()
-	ctx, cancel := context.WithTimeout(ctx, timeout)
+	ctx, cancel := context.WithTimeout(ctx, time.Duration(exp.conf.Timeout)*time.Second)
 	defer cancel()

 	run := make(chan struct{}, 1)
 	var res bool

 	go func() {
-		switch op {
+		switch mode {
 		case O_R:
-			res = runcheck_r(file, alloc)
+			res = exp.runcheck_r()
 		case O_W:
-			res = runcheck_w(file, alloc)
+			res = exp.runcheck_w()
 		}
 		run <- struct{}{}
 	}()
@@ -60,19 +123,19 @@ func runExporter(file string, alloc *Alloc, timeout time.Duration, op int) bool
 //
 // Returns false if anything failed during that sequence,
 // true otherwise.
-func runcheck_r(file string, alloc *Alloc) bool {
+func (exp *Exporter) runcheck_r() bool {
 	// read
-	in, err := directio.OpenFile(file, os.O_RDONLY, 0640)
+	in, err := directio.OpenFile(exp.conf.File, os.O_RDONLY, 0640)
 	if err != nil {
 		report(err, nil)
 	}

-	n, err := io.ReadFull(in, alloc.readBlock)
+	n, err := io.ReadFull(in, exp.alloc.readBlock)
 	if err != nil {
 		return report(err, in)
 	}

-	if n != len(alloc.writeBlock) {
+	if n != len(exp.alloc.writeBlock) {
 		return report(errors.New("failed to read block"), in)
 	}

@@ -92,23 +155,23 @@ func runcheck_r(file string, alloc *Alloc) bool {
 //
 // Returns false if anything failed during that sequence,
 // true otherwise.
-func runcheck_w(file string, alloc *Alloc) bool {
+func (exp *Exporter) runcheck_w() bool {
 	// write
-	fd, err := directio.OpenFile(file, os.O_RDWR|os.O_TRUNC|os.O_CREATE, 0640)
+	fd, err := directio.OpenFile(exp.conf.File, os.O_RDWR|os.O_TRUNC|os.O_CREATE, 0640)
 	if err != nil {
 		report(err, nil)
 	}

-	for i := 0; i < len(alloc.writeBlock); i++ {
-		alloc.writeBlock[i] = 'A'
+	for i := 0; i < len(exp.alloc.writeBlock); i++ {
+		exp.alloc.writeBlock[i] = 'A'
 	}

-	n, err := fd.Write(alloc.writeBlock)
+	n, err := fd.Write(exp.alloc.writeBlock)
 	if err != nil {
 		return report(err, fd)
 	}

-	if n != len(alloc.writeBlock) {
+	if n != len(exp.alloc.writeBlock) {
 		return report(errors.New("failed to write block"), fd)
 	}

--- a/cmd/metrics.go
+++ b/cmd/metrics.go
@@ -101,25 +101,25 @@ func NewMetrics(conf *Config) *Metrics {
 	return metrics
 }

-func (metrics *Metrics) Set(result_r, result_w bool, elapsed_r, elapsed_w float64) {
+func (metrics *Metrics) Set(result_r, result_w Result) {
 	var res float64

 	switch metrics.mode {
 	case O_RW:
-		if result_r && result_w {
+		if result_r.result && result_w.result {
 			res = 1
 		}
 	case O_R:
-		if result_r {
+		if result_r.result {
 			res = 1
 		}
 	case O_W:
-		if result_w {
+		if result_w.result {
 			res = 1
 		}
 	}

 	metrics.run.WithLabelValues(metrics.values...).Set(res)
-	metrics.latency_r.WithLabelValues(metrics.values...).Set(elapsed_r)
-	metrics.latency_w.WithLabelValues(metrics.values...).Set(elapsed_w)
+	metrics.latency_r.WithLabelValues(metrics.values...).Set(result_r.elapsed)
+	metrics.latency_w.WithLabelValues(metrics.values...).Set(result_w.elapsed)
 }
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -7,11 +7,17 @@ import (
 	"net/http"
 	"os"
 	"strings"
-	"time"
+
+	// enable to debug with roumon
+	//_ "net/http/pprof"
+	// then: roumon -host=localhost -port=9187

 	"github.com/prometheus/client_golang/prometheus/promhttp"
 )

+// Main program. starts 2 goroutines: our exporter and the http server
+// for  the  prometheus  metrics.  The  exporter  reports  measurement
+// results to prometheus metrics directly
 func Run() {
 	conf, err := InitConfig(os.Stdout)
 	if err != nil {
@@ -23,62 +29,52 @@ func Run() {
 		os.Exit(0)
 	}

-	metrics := NewMetrics(conf)
-	alloc := NewAlloc()
-
+	if conf.Showhelp {
+		fmt.Println(Usage)
+		os.Exit(0)
+	}
 	setLogger(os.Stdout, conf.Debug)

-	go func() {
-		for {
-			var result_r, result_w bool
-			var elapsed_w, elapsed_r float64
+	metrics := NewMetrics(conf)
+	alloc := NewAlloc()
+	exporter := NewExporter(conf, alloc, metrics)

-			alloc.Clean()
-
-			if conf.WriteMode {
-				elapsed_w, result_w = measure(conf.File, alloc, conf.Timeout, O_W)
-				slog.Debug("elapsed write time", "elapsed", elapsed_w, "result", result_w)
-			}
-
-			if conf.ReadMode {
-				elapsed_r, result_r = measure(conf.File, alloc, conf.Timeout, O_R)
-				slog.Debug("elapsed read time", "elapsed", elapsed_r, "result", result_r)
-			}
-
-			if conf.WriteMode && conf.ReadMode {
-				if !alloc.Compare() {
-					result_r = false
-				}
-			}
-
-			metrics.Set(result_r, result_w, elapsed_r, elapsed_w)
-
-			time.Sleep(time.Duration(conf.Sleeptime) * time.Second)
-		}
-	}()
+	wg := exporter.RunIOchecks()

 	http.Handle("/metrics", promhttp.HandlerFor(
 		metrics.registry,
 		promhttp.HandlerOpts{},
 	))

-	slog.Info("start testing and serving metrics on localhost", "port", conf.Port)
-	slog.Info("test setup", "file", conf.File, "labels", strings.Join(conf.Label, ","))
-	slog.Info("measuring", "read", conf.ReadMode, "write", conf.WriteMode, "timeout(s)", conf.Timeout)
+	slog.Info(" ╭──")
+	slog.Info(" │ io-exporter starting up", "version", Version)
+	slog.Info(" │ serving metrics", "host", "localhost", "port", conf.Port)
+	slog.Info(" │ test setup", "file", conf.File, "labels", strings.Join(conf.Label, ","))
+	slog.Info(" │ measuring", "read", conf.ReadMode, "write", conf.WriteMode, "timeout(s)", conf.Timeout)
+	slog.Info(" │ debugging", "enabled", conf.Debug)
+	slog.Info(" ╰──")

 	if err := http.ListenAndServe(fmt.Sprintf(":%d", conf.Port), nil); err != nil {
 		log.Fatal(err)
 	}
+
+	wg.Wait()
 }

-func measure(file string, alloc *Alloc, timeout int, mode int) (float64, bool) {
-	start := time.Now()
+func report(err error, fd *os.File) bool {
+	failure := err.Error()
+	if err.Error() == "context deadline exceeded" {
+		failure = "operation timed out"
+	}

-	result := runExporter(file, alloc, time.Duration(timeout)*time.Second, mode)
+	slog.Error("io error", "error", failure)

-	// ns => s
-	now := time.Now()
-	elapsed := float64(now.Sub(start).Nanoseconds()) / 10000000000
+	if fd != nil {
+		if err := fd.Close(); err != nil {

-	return elapsed, result
+			slog.Debug("failed to close filehandle", "error", failure)
+		}
+	}
+
+	return false
 }
--- a/go.mod
+++ b/go.mod
@@ -1,4 +1,4 @@
-module github.com/tlinden/io-exporter
+module codeberg.org/scip/io-exporter

 go 1.23.5

--- a/grafana/dashboard.js
+++ b/grafana/dashboard.js
@@ -0,0 +1,580 @@
+{
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": {
+          "type": "grafana",
+          "uid": "-- Grafana --"
+        },
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "type": "dashboard"
+      }
+    ]
+  },
+  "editable": true,
+  "fiscalYearStartMonth": 0,
+  "graphTooltip": 0,
+  "id": 37,
+  "links": [],
+  "panels": [
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "P5DCFC7561CCDE821"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "custom": {
+            "fillOpacity": 70,
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineWidth": 0,
+            "spanNulls": false
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 0
+              },
+              {
+                "color": "green",
+                "value": 1
+              }
+            ]
+          },
+          "unit": "bool_yes_no"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 9,
+        "w": 24,
+        "x": 0,
+        "y": 0
+      },
+      "id": 4,
+      "options": {
+        "alignValue": "left",
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "mergeValues": true,
+        "rowHeight": 0.9,
+        "showValue": "auto",
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "11.3.8+security-01",
+      "targets": [
+        {
+          "editorMode": "code",
+          "expr": "sum(io_exporter_io_operation{container=\"ioexporter\",namespace=\"$namespace\"}) by (pod)",
+          "legendFormat": "{{pod}}",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "IO Operation Result",
+      "type": "state-timeline"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "P5DCFC7561CCDE821"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisBorderShow": false,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "barWidthFactor": 0.6,
+            "drawStyle": "line",
+            "fillOpacity": 0,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "linear",
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "auto",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          },
+          "unit": "s"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 10,
+        "w": 12,
+        "x": 0,
+        "y": 9
+      },
+      "id": 1,
+      "options": {
+        "legend": {
+          "calcs": [
+            "lastNotNull",
+            "max",
+            "min"
+          ],
+          "displayMode": "table",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "11.3.8+security-01",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "P5DCFC7561CCDE821"
+          },
+          "editorMode": "code",
+          "expr": "sum(io_exporter_io_read_latency{container=\"ioexporter\",namespace=\"$namespace\"}) by (pod)",
+          "legendFormat": "{{pod}}",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "IO Read Latency",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "P5DCFC7561CCDE821"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisBorderShow": false,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "barWidthFactor": 0.6,
+            "drawStyle": "line",
+            "fillOpacity": 0,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "linear",
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "auto",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          },
+          "unit": "s"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 10,
+        "w": 12,
+        "x": 12,
+        "y": 9
+      },
+      "id": 3,
+      "options": {
+        "legend": {
+          "calcs": [
+            "lastNotNull",
+            "max",
+            "min"
+          ],
+          "displayMode": "table",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "11.3.8+security-01",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "P5DCFC7561CCDE821"
+          },
+          "editorMode": "code",
+          "expr": "sum(io_exporter_io_write_latency{container=\"ioexporter\",namespace=\"$namespace\"}) by (pod)",
+          "legendFormat": "{{pod}}",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "IO Write Latency",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "P5DCFC7561CCDE821"
+      },
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic-by-name"
+          },
+          "custom": {
+            "axisBorderShow": false,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "barWidthFactor": 0.6,
+            "drawStyle": "line",
+            "fillOpacity": 55,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "linear",
+            "lineWidth": 0,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "never",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "normal"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "min": 0,
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          },
+          "unit": "s"
+        },
+        "overrides": [
+          {
+            "__systemRef": "hideSeriesFrom",
+            "matcher": {
+              "id": "byNames",
+              "options": {
+                "mode": "exclude",
+                "names": [
+                  "Value"
+                ],
+                "prefix": "All except:",
+                "readOnly": true
+              }
+            },
+            "properties": [
+              {
+                "id": "custom.hideFrom",
+                "value": {
+                  "legend": false,
+                  "tooltip": false,
+                  "viz": true
+                }
+              }
+            ]
+          }
+        ]
+      },
+      "gridPos": {
+        "h": 9,
+        "w": 12,
+        "x": 0,
+        "y": 19
+      },
+      "id": 5,
+      "interval": "1m",
+      "options": {
+        "legend": {
+          "calcs": [
+            "lastNotNull",
+            "mean",
+            "min",
+            "max"
+          ],
+          "displayMode": "table",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "11.3.8+security-01",
+      "targets": [
+        {
+          "datasource": {
+            "uid": "$datasource"
+          },
+          "editorMode": "code",
+          "expr": "sum(node_namespace_pod_container:container_cpu_usage_seconds_total:sum_irate{namespace=\"$namespace\", container=\"ioexporter\"}) by (pod)",
+          "format": "time_series",
+          "intervalFactor": 2,
+          "legendFormat": "{{pod}}",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "CPU Usage IO Exporter",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "P5DCFC7561CCDE821"
+      },
+      "description": "Memory Usage and Limit in Bytes",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisBorderShow": false,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "barWidthFactor": 0.6,
+            "drawStyle": "line",
+            "fillOpacity": 10,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "linear",
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "never",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "links": [],
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          },
+          "unit": "decbytes"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 9,
+        "w": 12,
+        "x": 12,
+        "y": 19
+      },
+      "id": 6,
+      "options": {
+        "alertThreshold": true,
+        "legend": {
+          "calcs": [
+            "mean",
+            "lastNotNull",
+            "max",
+            "min"
+          ],
+          "displayMode": "table",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "11.3.8+security-01",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "P5DCFC7561CCDE821"
+          },
+          "editorMode": "code",
+          "exemplar": true,
+          "expr": "sum(container_memory_working_set_bytes{namespace=\"$namespace\", container=\"ioexporter\"}) by (pod)",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{pod}}",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Average Memory Usage IO Explorer",
+      "type": "timeseries"
+    }
+  ],
+  "preload": false,
+  "schemaVersion": 40,
+  "tags": [],
+  "templating": {
+    "list": [
+      {
+        "current": {
+          "text": "exporter-test",
+          "value": "exporter-test"
+        },
+        "definition": "label_values(io_exporter_io_operation,namespace)",
+        "includeAll": true,
+        "name": "namespace",
+        "options": [],
+        "query": {
+          "qryType": 1,
+          "query": "label_values(io_exporter_io_operation,namespace)",
+          "refId": "PrometheusVariableQueryEditor-VariableQuery"
+        },
+        "refresh": 1,
+        "regex": "",
+        "type": "query"
+      }
+    ]
+  },
+  "time": {
+    "from": "now-6h",
+    "to": "now"
+  },
+  "timepicker": {},
+  "timezone": "browser",
+  "title": "io-test",
+  "uid": "ef1tcv0azbpc0e",
+  "version": 11,
+  "weekStart": ""
+}
--- a/grafana/screenshot.png
+++ b/grafana/screenshot.png
--- a/main.go
+++ b/main.go
@@ -1,6 +1,6 @@
 package main

-import "github.com/tlinden/io-exporter/cmd"
+import "codeberg.org/scip/io-exporter/cmd"

 func main() {
 	cmd.Run()
Author	SHA1	Message	Date
Thomas von Dein	ff8cf98fa4	fix link	2025-11-05 09:02:51 +01:00
Thomas von Dein	e813394d6b	fix badge again	2025-10-31 23:21:56 +01:00
Thomas von Dein	6f7b7eee28	fix badge	2025-10-31 23:21:22 +01:00
Thomas von Dein	3a290956ae	fix release	2025-10-31 22:55:16 +01:00
T. von Dein	7854627ff3	move to codeberg (#1 ) Co-authored-by: Thomas von Dein <tom@vondein.org> Reviewed-on: https://codeberg.org/scip/io-exporter/pulls/1	2025-10-31 22:29:44 +01:00
T.v.Dein	662dc39e8f	dashboard and -h fix * add grafana dashboard * test png * print help when -h is present regardless of other flags	2025-10-25 22:20:36 +02:00
T.v.Dein	b3e15c7b59	Grafana (#7 )	2025-10-24 11:12:06 +02:00
Thomas von Dein	c1199931ee	log errors to error channel, not debug	2025-10-23 20:08:10 +02:00
Thomas von Dein	903401f511	add badges to readme	2025-10-23 17:48:36 +02:00
Thomas von Dein	fdb4090a6e	fix #5 : nobody understands context deadline exceeded, use timeout	2025-10-23 17:42:05 +02:00
Thomas von Dein	d46b731f06	fix #4 : do not compare read+write block on failure	2025-10-23 17:37:34 +02:00
Thomas von Dein	ca19721084	fix #6 : do not report elapsed time on failure	2025-10-23 17:32:37 +02:00
Thomas von Dein	b48ea00b22	oops	2025-10-23 12:59:54 +02:00
Thomas von Dein	ad80542619	return wg pointer	2025-10-23 12:41:34 +02:00
Thomas von Dein	62f5b51be8	add waitgroup for goroutine 1	2025-10-23 12:39:09 +02:00
T.v.Dein	99222b1cae	Refactor exporter (#3 ) * refactor exporter code for better readability and structure * modified startup log output a little	2025-10-23 12:14:33 +02:00
				`@@ -1 +0,0 @@`
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