Merge pull request #204 from eko/dependabot/go_modules/golang.org/x/net-0.16.0

Bump golang.org/x/net from 0.15.0 to 0.16.0

.github/CONTRIBUTING.md

@@ -1,6 +1,6 @@
 # Contributing
 
-PI-Hole exporter is an open source project, completely opened to be a community-driven project.
+Pi-hole exporter is an open source project, completely opened to be a community-driven project.
 
 If you'd like to contribute, you are free to do so.
 

.github/dependabot.yml

@@ -12,7 +12,3 @@ updates:
     interval: daily
     time: "04:00"
   open-pull-requests-limit: 10
-  ignore:
-  - dependency-name: golang
-    versions:
-    - 1.16.1.pre.alpine3.12

.github/main.workflow

@@ -1,31 +0,0 @@
-workflow "Build and Publish" {
-  on = "push"
-  resolves = ["Master", "Docker Push"]
-}
-
-# Filter for master branch
-action "Master" {
-  uses = "actions/bin/filter@master"
-  args = "branch master"
-}
-
-action "Docker Build" {
-  uses = "actions/docker/cli@fe7ed3ce992160973df86480b83a2f8ed581cd50"
-  needs = ["Master"]
-  args = "build -t pihole-exporter ."
-}
-
-action "Docker Registry" {
-  uses = "actions/docker/login@fe7ed3ce992160973df86480b83a2f8ed581cd50"
-  env = {
-    DOCKER_REGISTRY_URL = "docker.pkg.github.com"
-  }
-  secrets = ["DOCKER_PASSWORD", "DOCKER_USERNAME"]
-  needs = ["Docker Build"]
-}
-
-action "Docker Push" {
-  uses = "actions/docker/cli@fe7ed3ce992160973df86480b83a2f8ed581cd50"
-  args = "push pihole-exporter"
-  needs = ["Docker Registry"]
-}

.github/workflows/master.yml

@@ -3,20 +3,17 @@ name: Test (master)
 on:
   push:
     branches:
-      - '*'
+      - master
-  pull_request:
-    branches:
-      - '*'
 
 jobs:
   test:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go_version: [ '1.14', '1.15', '1.16', '1.17' ]
+        go_version: [ '1.20' ]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
-      - uses: actions/setup-go@v1
+      - uses: actions/setup-go@v3
         with:
           go-version: ${{ matrix.go_version }}
 
@@ -26,3 +23,30 @@ jobs:
       - name: Run go tests
         run: go test -v -cover -race ./...
 
+  docker-build:
+    runs-on: ubuntu-latest
+    needs: test
+    steps:
+      - uses: actions/checkout@v3
+      - uses: azure/docker-login@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Set up docker buildx
+        id: buildx
+        uses: crazy-max/ghaction-docker-buildx@v1
+        with:
+          buildx-version: latest
+          qemu-version: latest
+
+      - name: Docker buildx available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}
+
+      - name: Run docker buildx build
+        run: |
+          docker buildx build \
+            --platform linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64 \
+            --output=type=registry,push=true \
+            --tag ekofr/pihole-exporter:latest \
+            .

.github/workflows/tag.yml

@@ -10,10 +10,10 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go_version: [ '1.14', '1.15', '1.16', '1.17' ]
+        go_version: [ '1.20' ]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v3
         with:
           go-version: ${{ matrix.go_version }}
       - run: go get -t -v ./...
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: test
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - uses: azure/docker-login@v1
       with:
@@ -48,7 +48,7 @@ jobs:
       run: |
         docker buildx build \
           --platform linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64 \
-          --output=type=registry \
+          --output=type=registry,push=true \
           --tag ekofr/pihole-exporter:${{ steps.get_version.outputs.TAG_NAME }} \
           .
 
@@ -99,10 +99,10 @@ jobs:
             extension: '.exe'
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v3
         with:
-          go-version: 1.15
+          go-version: '1.20'
 
       - name: Download go dependencies
         run: go get -t -v ./...

.gitignore

@@ -1,6 +1,7 @@
 vendor
 bin
 tmp
+
 .vscode
 report.xml
 debug

.pre-commit-config.yaml

@@ -0,0 +1,18 @@
+repos:
+- repo: https://github.com/dnephin/pre-commit-golang
+  rev: v0.5.1
+  hooks:
+    - id: go-fmt
+    - id: go-vet
+    - id: validate-toml
+    - id: no-go-testing
+    - id: go-unit-tests
+    - id: go-build
+    - id: go-mod-tidy
+- repo: https://github.com/pre-commit/pre-commit-hooks.git
+  rev: v4.3.0
+  hooks:
+    - id: end-of-file-fixer
+    - id: trailing-whitespace
+    - id: mixed-line-ending
+    - id: check-merge-conflict

Dockerfile

@@ -2,7 +2,7 @@ ARG IMAGE=scratch
 ARG OS=linux
 ARG ARCH=amd64
 
-FROM golang:1.17.3-alpine3.13 as builder
+FROM golang:1.21.2-alpine3.17 as builder
 
 WORKDIR /go/src/github.com/eko/pihole-exporter
 COPY . .

README.md

@@ -1,14 +1,17 @@
-# PI-Hole Prometheus Exporter
+# Pi-hole Prometheus Exporter
 
 ![Build/Push (master)](https://github.com/eko/pihole-exporter/workflows/Build/Push%20(master)/badge.svg)
 [![GoDoc](https://godoc.org/github.com/eko/pihole-exporter?status.png)](https://godoc.org/github.com/eko/pihole-exporter)
 [![GoReportCard](https://goreportcard.com/badge/github.com/eko/pihole-exporter)](https://goreportcard.com/report/github.com/eko/pihole-exporter)
 
-This is a Prometheus exporter for [PI-Hole](https://pi-hole.net/)'s Raspberry PI ad blocker.
+This is a Prometheus exporter for [Pi-hole](https://pi-hole.net/)'s Raspberry PI ad blocker.
 
 ![Grafana dashboard](https://raw.githubusercontent.com/eko/pihole-exporter/master/dashboard.jpg)
 
-Grafana dashboard is [available here](https://grafana.com/dashboards/10176) on the Grafana dashboard website and also [here](https://raw.githubusercontent.com/eko/pihole-exporter/master/grafana/dashboard.json) on the GitHub repository.
+Available Grafana Dasboards:
+
+* Prometheus: [Grafana Labs](https://grafana.com/grafana/dashboards/10176-pi-hole-exporter/) / [JSON/Github](https://raw.githubusercontent.com/eko/pihole-exporter/master/grafana/dashboard.json) --> [Preview](https://raw.githubusercontent.com/eko/pihole-exporter/master/dashboard.jpg)
+* InfluxDB 2 (Flux): [Grafana Labs](https://grafana.com/grafana/dashboards/17094-pi-hole-exporter-influxdb-2/) / [JSON/Github](https://raw.githubusercontent.com/eko/pihole-exporter/master/grafana/dashboard-influxdb2.json) --> [Preview](https://raw.githubusercontent.com/eko/pihole-exporter/master/dashboard-influxdb2.png)
 
 ## Prerequisites
 
@@ -43,7 +46,6 @@ You can run it using the following example and pass configuration environment va
 $ docker run \
   -e 'PIHOLE_HOSTNAME=192.168.1.2' \
   -e 'PIHOLE_PASSWORD=mypassword' \
-  -e 'INTERVAL=30s' \
   -e 'PORT=9617' \
   -p 9617:9617 \
   ekofr/pihole-exporter:latest
@@ -56,8 +58,8 @@ $ API_TOKEN=$(awk -F= -v key="WEBPASSWORD" '$1==key {print $2}' /etc/pihole/setu
 $ docker run \
   -e 'PIHOLE_HOSTNAME=192.168.1.2' \
   -e "PIHOLE_API_TOKEN=$API_TOKEN" \
-  -e 'INTERVAL=30s' \
   -e 'PORT=9617' \
+  -p 9617:9617 \
   ekofr/pihole-exporter:latest
 ```
 
@@ -69,7 +71,6 @@ $ docker run \
   -e 'PIHOLE_PROTOCOL=https' \
   -e 'PIHOLE_HOSTNAME=192.168.1.2' \
   -e 'PIHOLE_PASSWORD=mypassword' \
-  -e 'INTERVAL=30s' \
   -e 'PORT=9617' \
   -v '/etc/ssl/certs:/etc/ssl/certs:ro' \
   -p 9617:9617 \
@@ -81,12 +82,12 @@ To do so, you can specify a list of hostnames, protocols, passwords/API tokens a
 
 ```
 $ docker run \
-  -e 'PIHOLE_PROTOCOL="http,http,http" \
+  -e 'PIHOLE_PROTOCOL=http,http,http" \
-  -e 'PIHOLE_HOSTNAME="192.168.1.2,192.168.1.3,192.168.1.4"' \
+  -e 'PIHOLE_HOSTNAME=192.168.1.2,192.168.1.3,192.168.1.4"' \
-  -e "PIHOLE_API_TOKEN="$API_TOKEN1,$API_TOKEN2,$API_TOKEN3" \
+  -e "PIHOLE_API_TOKEN=$API_TOKEN1,$API_TOKEN2,$API_TOKEN3" \
-  -e "PIHOLE_PORT="8080,8081,8080" \
+  -e "PIHOLE_PORT=8080,8081,8080" \
-  -e 'INTERVAL=30s' \
   -e 'PORT=9617' \
+  -p 9617:9617 \
   ekofr/pihole-exporter:latest
 ```
 
@@ -94,12 +95,12 @@ If port, protocol and API token/password is the same for all instances, you can
 
 ```
 $ docker run \
-  -e 'PIHOLE_PROTOCOL=",http" \
+  -e 'PIHOLE_PROTOCOL=http" \
-  -e 'PIHOLE_HOSTNAME="192.168.1.2,192.168.1.3,192.168.1.4"' \
+  -e 'PIHOLE_HOSTNAME=192.168.1.2,192.168.1.3,192.168.1.4"' \
-  -e "PIHOLE_API_TOKEN="$API_TOKEN" \
+  -e "PIHOLE_API_TOKEN=$API_TOKEN" \
-  -e "PIHOLE_PORT="8080" \
+  -e "PIHOLE_PORT=8080" \
-  -e 'INTERVAL=30s' \
   -e 'PORT=9617' \
+  -p 9617:9617 \
   ekofr/pihole-exporter:latest
 ```
 
@@ -107,7 +108,7 @@ $ docker run \
 
 Optionally, you can download and build it from the sources. You have to retrieve the project sources by using one of the following way:
 ```bash
-$ go get -u github.com/eko/pihole-exporter
+$ go install github.com/eko/pihole-exporter@latest
 # or
 $ git clone https://github.com/eko/pihole-exporter.git
 ```
@@ -142,12 +143,12 @@ $ ./pihole_exporter -pihole_hostname 192.168.1.10 -pihole_api_token $API_TOKEN
 
 ```bash
 2019/05/09 20:19:52 ------------------------------------
-2019/05/09 20:19:52 -  PI-Hole exporter configuration  -
+2019/05/09 20:19:52 -  Pi-hole exporter configuration  -
 2019/05/09 20:19:52 ------------------------------------
 2019/05/09 20:19:52 PIHoleHostname : 192.168.1.10
 2019/05/09 20:19:52 PIHolePassword : azerty
 2019/05/09 20:19:52 Port : 9617
-2019/05/09 20:19:52 Interval : 10s
+2019/05/09 20:19:52 Timeout : 5s
 2019/05/09 20:19:52 ------------------------------------
 2019/05/09 20:19:52 New Prometheus metric registered: domains_blocked
 2019/05/09 20:19:52 New Prometheus metric registered: dns_queries_today
@@ -182,19 +183,21 @@ scrape_configs:
 
 ## Available CLI options
 ```bash
-# Interval of time the exporter will fetch data from PI-Hole
+# Hostname of the host(s) where Pi-hole is installed
-  -interval duration (optional) (default 10s)
-
-# Hostname of the Raspberry PI where PI-Hole is installed
   -pihole_hostname string (optional) (default "127.0.0.1")
 
-# Password defined on the PI-Hole interface
+# Password defined on the Pi-hole interface
   -pihole_password string (optional)
 
+# Timeout to connect and retrieve data from a Pi-hole instance
+  -timeout duration (optional) (default 5s)
 
-# WEBPASSWORD / api token defined on the PI-Hole interface at `/etc/pihole/setupVars.conf`
+# WEBPASSWORD / api token defined on the Pi-hole interface at `/etc/pihole/setupVars.conf`
   -pihole_api_token string (optional)
 
+# Address to be used for the exporter
+  -bind_addr string (optional) (default "0.0.0.0")
+
 # Port to be used for the exporter
   -port string (optional) (default "9617")
 ```
@@ -214,12 +217,12 @@ scrape_configs:
 | pihole_unique_clients        | This represent the number of unique clients seen                                          |
 | pihole_dns_queries_all_types | This represent the number of DNS queries made for all types                               |
 | pihole_reply                 | This represent the number of replies made for all types                                   |
-| pihole_top_queries           | This represent the number of top queries made by PI-Hole by domain                        |
+| pihole_top_queries           | This represent the number of top queries made by Pi-hole by domain                        |
-| pihole_top_ads               | This represent the number of top ads made by PI-Hole by domain                            |
+| pihole_top_ads               | This represent the number of top ads made by Pi-hole by domain                            |
-| pihole_top_sources           | This represent the number of top sources requests made by PI-Hole by source host          |
+| pihole_top_sources           | This represent the number of top sources requests made by Pi-hole by source host          |
-| pihole_forward_destinations  | This represent the number of forward destinations requests made by PI-Hole by destination |
+| pihole_forward_destinations  | This represent the number of forward destinations requests made by Pi-hole by destination |
-| pihole_querytypes            | This represent the number of queries made by PI-Hole by type                              |
+| pihole_querytypes            | This represent the number of queries made by Pi-hole by type                              |
-| pihole_status                | This represent if PI-Hole is enabled                                                      |
+| pihole_status                | This represent if Pi-hole is enabled                                                      |
 
 
 ## Pihole-Exporter Helm Chart

config/configuration.go

@@ -4,11 +4,13 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"log"
 	"reflect"
+	"runtime"
 	"strings"
 	"time"
 
+	log "github.com/sirupsen/logrus"
+
 	"github.com/heetch/confita"
 	"github.com/heetch/confita/backend"
 	"github.com/heetch/confita/backend/env"
@@ -22,6 +24,8 @@ type Config struct {
 	PIHolePort     uint16 `config:"pihole_port"`
 	PIHolePassword string `config:"pihole_password"`
 	PIHoleApiToken string `config:"pihole_api_token"`
+	BindAddr       string `config:"bind_addr"`
+	Port           uint16 `config:"port"`
 }
 
 type EnvConfig struct {
@@ -30,8 +34,9 @@ type EnvConfig struct {
 	PIHolePort     []uint16      `config:"pihole_port"`
 	PIHolePassword []string      `config:"pihole_password"`
 	PIHoleApiToken []string      `config:"pihole_api_token"`
+	BindAddr       string        `config:"bind_addr"`
 	Port           uint16        `config:"port"`
-	Interval       time.Duration `config:"interval"`
+	Timeout        time.Duration `config:"timeout"`
 }
 
 func getDefaultEnvConfig() *EnvConfig {
@@ -41,8 +46,9 @@ func getDefaultEnvConfig() *EnvConfig {
 		PIHolePort:     []uint16{80},
 		PIHolePassword: []string{},
 		PIHoleApiToken: []string{},
+		BindAddr:       "0.0.0.0",
 		Port:           9617,
-		Interval:       10 * time.Second,
+		Timeout:        5 * time.Second,
 	}
 }
 
@@ -78,9 +84,14 @@ func (c *Config) String() string {
 	for i := 0; i < fields.NumField(); i++ {
 		valueField := fields.Field(i)
 		typeField := fields.Type().Field(i)
+		if typeField.Name != "PIHolePassword" && typeField.Name != "PIHoleApiToken" {
 			buffer[i] = fmt.Sprintf("%s=%v", typeField.Name, valueField.Interface())
+		} else if valueField.Len() > 0 {
+			buffer[i] = fmt.Sprintf("%s=%s", typeField.Name, "*****")
+		}
 	}
 
+	buffer = removeEmptyString(buffer)
 	return fmt.Sprintf("<Config@%X %s>", &c, strings.Join(buffer, ", "))
 }
 
@@ -152,6 +163,16 @@ func extractStringConfig(data []string, idx int, hostsCount int) (bool, string,
 	return false, "", true
 }
 
+func removeEmptyString(source []string) []string {
+	var result []string
+	for _, s := range source {
+		if s != "" {
+			result = append(result, s)
+		}
+	}
+	return result
+}
+
 func (c Config) hostnameURL() string {
 	s := fmt.Sprintf("%s://%s", c.PIHoleProtocol, c.PIHoleHostname)
 	if c.PIHolePort != 0 {
@@ -172,25 +193,26 @@ func (c Config) PIHoleLoginURL() string {
 
 func (c EnvConfig) show() {
 	val := reflect.ValueOf(&c).Elem()
-	log.Println("------------------------------------")
+	log.Info("------------------------------------")
-	log.Println("-  PI-Hole exporter configuration  -")
+	log.Info("-  Pi-hole exporter configuration  -")
-	log.Println("------------------------------------")
+	log.Info("------------------------------------")
+	log.Info("Go version: ", runtime.Version())
 	for i := 0; i < val.NumField(); i++ {
 		valueField := val.Field(i)
 		typeField := val.Type().Field(i)
 
 		// Do not print password or api token but do print the authentication method
 		if typeField.Name != "PIHolePassword" && typeField.Name != "PIHoleApiToken" {
-			log.Println(fmt.Sprintf("%s : %v", typeField.Name, valueField.Interface()))
+			log.Info(fmt.Sprintf("%s : %v", typeField.Name, valueField.Interface()))
 		} else {
 			showAuthenticationMethod(typeField.Name, valueField.Len())
 		}
 	}
-	log.Println("------------------------------------")
+	log.Info("------------------------------------")
 }
 
 func showAuthenticationMethod(name string, length int) {
 	if length > 0 {
-		log.Println(fmt.Sprintf("Pi-Hole Authentication Method : %s", name))
+		log.Info(fmt.Sprintf("Pi-hole Authentication Method : %s", name))
 	}
 }

go.mod

@@ -1,11 +1,28 @@
 module github.com/eko/pihole-exporter
 
-go 1.15
+go 1.20
 
 require (
 	github.com/heetch/confita v0.10.0
-	github.com/prometheus/client_golang v1.11.0
+	github.com/prometheus/client_golang v1.17.0
-	github.com/stretchr/testify v1.7.0
+	github.com/sirupsen/logrus v1.9.3
+	github.com/stretchr/testify v1.8.4
 	github.com/xonvanetta/shutdown v0.0.3
-	golang.org/x/net v0.0.0-20200625001655-4c5254603344
+	golang.org/x/net v0.16.0
+)
+
+require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/prometheus/client_model v0.4.1-0.20230718164431-9a2bf3000d16 // indirect
+	github.com/prometheus/common v0.44.0 // indirect
+	github.com/prometheus/procfs v0.11.1 // indirect
+	golang.org/x/sys v0.13.0 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,24 +1,19 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/DataDog/datadog-go v2.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
-github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
 github.com/armon/go-metrics v0.0.0-20190430140413-ec5e00d3c878/go.mod h1:3AMJUQhVx52RsWOnlkpikZr01T/yAVN2gn0861vByNg=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
 github.com/aws/aws-sdk-go v1.23.20/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
-github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
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@@ -36,12 +31,8 @@ github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5Kwzbycv
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@@ -51,26 +42,15 @@ github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4er
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@@ -112,26 +92,19 @@ github.com/heetch/confita v0.10.0 h1:00V4eQPDU71v9nZD7N/DsSb9cnPJh59CjrpQPfln47A
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@@ -145,12 +118,7 @@ github.com/mitchellh/iochan v1.0.0/go.mod h1:JwYml1nuB7xOzsp52dPpHFffvOCDupsG0Qu
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@@ -217,7 +179,6 @@ golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnf
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@@ -228,24 +189,19 @@ golang.org/x/net v0.0.0-20181023162649-9b4f9f5ad519/go.mod h1:mL1N/T3taQHkDXs73r
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@@ -256,25 +212,18 @@ golang.org/x/sys v0.0.0-20190129075346-302c3dd5f1cc/go.mod h1:STP8DvDyc/dI5b8T5h
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@@ -283,31 +232,22 @@ google.golang.org/genproto v0.0.0-20190404172233-64821d5d2107/go.mod h1:VzzqZJRn
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 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

grafana/dashboard.json

@@ -67,7 +67,7 @@
       }
     ]
   },
-  "description": "This is a PI-Hole dashboard when using the https://github.com/eko/pihole-exporter Prometheus exporter",
+  "description": "This is a Pi-hole dashboard when using the https://github.com/eko/pihole-exporter Prometheus exporter",
   "editable": true,
   "gnetId": 10176,
   "graphTooltip": 0,
@@ -86,7 +86,7 @@
       },
       "id": 60,
       "panels": [],
-      "title": "🍓PI-Hole",
+      "title": "🥧🕳️ Pi-hole",
       "type": "row"
     },
     {
@@ -1522,7 +1522,7 @@
     ]
   },
   "timezone": "",
-  "title": "PI-Hole Exporter",
+  "title": "Pi-hole Exporter",
-  "uid": "PI-Hole-Exporter",
+  "uid": "Pi-hole-Exporter",
   "version": 31
 }

internal/metrics/metrics.go

@@ -1,13 +1,12 @@
 package metrics
 
 import (
-	"log"
-
 	"github.com/prometheus/client_golang/prometheus"
+	log "github.com/sirupsen/logrus"
 )
 
 var (
-	// DomainsBlocked - The number of domains being blocked by PI-Hole.
+	// DomainsBlocked - The number of domains being blocked by Pi-hole.
 	DomainsBlocked = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "domains_being_blocked",
@@ -17,7 +16,7 @@ var (
 		[]string{"hostname"},
 	)
 
-	// DNSQueriesToday - The number of DNS requests made over PI-Hole over the current day.
+	// DNSQueriesToday - The number of DNS requests made over Pi-hole over the current day.
 	DNSQueriesToday = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "dns_queries_today",
@@ -27,7 +26,7 @@ var (
 		[]string{"hostname"},
 	)
 
-	// AdsBlockedToday - The number of ads blocked by PI-Hole over the current day.
+	// AdsBlockedToday - The number of ads blocked by Pi-hole over the current day.
 	AdsBlockedToday = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "ads_blocked_today",
@@ -37,7 +36,7 @@ var (
 		[]string{"hostname"},
 	)
 
-	// AdsPercentageToday - The percentage of ads blocked by PI-Hole over the current day.
+	// AdsPercentageToday - The percentage of ads blocked by Pi-hole over the current day.
 	AdsPercentageToday = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "ads_percentage_today",
@@ -47,7 +46,7 @@ var (
 		[]string{"hostname"},
 	)
 
-	// UniqueDomains - The number of unique domains seen by PI-Hole.
+	// UniqueDomains - The number of unique domains seen by Pi-hole.
 	UniqueDomains = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "unique_domains",
@@ -57,7 +56,7 @@ var (
 		[]string{"hostname"},
 	)
 
-	// QueriesForwarded - The number of queries forwarded by PI-Hole.
+	// QueriesForwarded - The number of queries forwarded by Pi-hole.
 	QueriesForwarded = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "queries_forwarded",
@@ -67,7 +66,7 @@ var (
 		[]string{"hostname"},
 	)
 
-	// QueriesCached - The number of queries cached by PI-Hole.
+	// QueriesCached - The number of queries cached by Pi-hole.
 	QueriesCached = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "queries_cached",
@@ -77,7 +76,7 @@ var (
 		[]string{"hostname"},
 	)
 
-	// ClientsEverSeen - The number of clients ever seen by PI-Hole.
+	// ClientsEverSeen - The number of clients ever seen by Pi-hole.
 	ClientsEverSeen = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "clients_ever_seen",
@@ -87,7 +86,7 @@ var (
 		[]string{"hostname"},
 	)
 
-	// UniqueClients - The number of unique clients seen by PI-Hole.
+	// UniqueClients - The number of unique clients seen by Pi-hole.
 	UniqueClients = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "unique_clients",
@@ -97,7 +96,7 @@ var (
 		[]string{"hostname"},
 	)
 
-	// DNSQueriesAllTypes - The number of DNS queries made for all types by PI-Hole.
+	// DNSQueriesAllTypes - The number of DNS queries made for all types by Pi-hole.
 	DNSQueriesAllTypes = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "dns_queries_all_types",
@@ -107,7 +106,7 @@ var (
 		[]string{"hostname"},
 	)
 
-	// Reply - The number of replies made for every types by PI-Hole.
+	// Reply - The number of replies made for every types by Pi-hole.
 	Reply = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "reply",
@@ -117,68 +116,68 @@ var (
 		[]string{"hostname", "type"},
 	)
 
-	// TopQueries - The number of top queries made by PI-Hole by domain.
+	// TopQueries - The number of top queries made by Pi-hole by domain.
 	TopQueries = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "top_queries",
 			Namespace: "pihole",
-			Help:      "This represent the number of top queries made by PI-Hole by domain",
+			Help:      "This represent the number of top queries made by Pi-hole by domain",
 		},
 		[]string{"hostname", "domain"},
 	)
 
-	// TopAds - The number of top ads made by PI-Hole by domain.
+	// TopAds - The number of top ads made by Pi-hole by domain.
 	TopAds = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "top_ads",
 			Namespace: "pihole",
-			Help:      "This represent the number of top ads made by PI-Hole by domain",
+			Help:      "This represent the number of top ads made by Pi-hole by domain",
 		},
 		[]string{"hostname", "domain"},
 	)
 
-	// TopSources - The number of top sources requests made by PI-Hole by source host.
+	// TopSources - The number of top sources requests made by Pi-hole by source host.
 	TopSources = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "top_sources",
 			Namespace: "pihole",
-			Help:      "This represent the number of top sources requests made by PI-Hole by source host",
+			Help:      "This represent the number of top sources requests made by Pi-hole by source host",
 		},
 		[]string{"hostname", "source"},
 	)
 
-	// ForwardDestinations - The number of forward destinations requests made by PI-Hole by destination.
+	// ForwardDestinations - The number of forward destinations requests made by Pi-hole by destination.
 	ForwardDestinations = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "forward_destinations",
 			Namespace: "pihole",
-			Help:      "This represent the number of forward destinations requests made by PI-Hole by destination",
+			Help:      "This represent the number of forward destinations requests made by Pi-hole by destination",
 		},
 		[]string{"hostname", "destination"},
 	)
 
-	// QueryTypes - The number of queries made by PI-Hole by type.
+	// QueryTypes - The number of queries made by Pi-hole by type.
 	QueryTypes = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "querytypes",
 			Namespace: "pihole",
-			Help:      "This represent the number of queries made by PI-Hole by type",
+			Help:      "This represent the number of queries made by Pi-hole by type",
 		},
 		[]string{"hostname", "type"},
 	)
 
-	// Status - Is PI-Hole enabled?
+	// Status - Is Pi-hole enabled?
 	Status = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:      "status",
 			Namespace: "pihole",
-			Help:      "This if PI-Hole is enabled",
+			Help:      "This if Pi-hole is enabled",
 		},
 		[]string{"hostname"},
 	)
 )
 
-// Init initializes all Prometheus metrics made available by PI-Hole exporter.
+// Init initializes all Prometheus metrics made available by Pi-hole exporter.
 func Init() {
 	initMetric("domains_blocked", DomainsBlocked)
 	initMetric("dns_queries_today", DNSQueriesToday)
@@ -201,5 +200,5 @@ func Init() {
 
 func initMetric(name string, metric *prometheus.GaugeVec) {
 	prometheus.MustRegister(metric)
-	log.Printf("New Prometheus metric registered: %s", name)
+	log.Info("New Prometheus metric registered: ", name)
 }

internal/pihole/client.go

@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
-	"log"
 	"net/http"
 	"net/url"
 	"os"
@@ -12,26 +11,55 @@ import (
 	"strings"
 	"time"
 
+	log "github.com/sirupsen/logrus"
+
 	"github.com/eko/pihole-exporter/config"
 	"github.com/eko/pihole-exporter/internal/metrics"
 )
 
-// Client struct is a PI-Hole client to request an instance of a PI-Hole ad blocker.
+type ClientStatus byte
+
+const (
+	MetricsCollectionInProgress ClientStatus = iota
+	MetricsCollectionSuccess
+	MetricsCollectionError
+	MetricsCollectionTimeout
+)
+
+func (status ClientStatus) String() string {
+	return []string{"MetricsCollectionInProgress", "MetricsCollectionSuccess", "MetricsCollectionError", "MetricsCollectionTimeout"}[status]
+}
+
+type ClientChannel struct {
+	Status ClientStatus
+	Err    error
+}
+
+func (c *ClientChannel) String() string {
+	if c.Err != nil {
+		return fmt.Sprintf("ClientChannel<Status: %s, Err: '%s'>", c.Status, c.Err.Error())
+	} else {
+		return fmt.Sprintf("ClientChannel<Status: %s, Err: <nil>>", c.Status)
+	}
+}
+
+// Client struct is a Pi-hole client to request an instance of a Pi-hole ad blocker.
 type Client struct {
 	httpClient http.Client
 	interval   time.Duration
 	config     *config.Config
+	Status     chan *ClientChannel
 }
 
-// NewClient method initializes a new PI-Hole client.
+// NewClient method initializes a new Pi-hole client.
-func NewClient(config *config.Config) *Client {
+func NewClient(config *config.Config, envConfig *config.EnvConfig) *Client {
 	err := config.Validate()
 	if err != nil {
-		log.Print(err)
+		log.Error(err)
 		os.Exit(1)
 	}
 
-	fmt.Printf("Creating client with config %s\n", config)
+	log.Printf("Creating client with config %s\n", config)
 
 	return &Client{
 		config: config,
@@ -39,7 +67,9 @@ func NewClient(config *config.Config) *Client {
 			CheckRedirect: func(req *http.Request, via []*http.Request) error {
 				return http.ErrUseLastResponse
 			},
+			Timeout: envConfig.Timeout,
 		},
+		Status: make(chan *ClientChannel, 1),
 	}
 }
 
@@ -47,32 +77,24 @@ func (c *Client) String() string {
 	return c.config.PIHoleHostname
 }
 
-/*
+func (c *Client) CollectMetricsAsync(writer http.ResponseWriter, request *http.Request) {
-// Metrics scrapes pihole and sets them
+	log.Printf("Collecting from %s", c.config.PIHoleHostname)
-func (c *Client) Metrics() http.HandlerFunc {
+	if stats, err := c.getStatistics(); err == nil {
-	return func(writer http.ResponseWriter, request *http.Request) {
-		stats, err := c.getStatistics()
-		if err != nil {
-			writer.WriteHeader(http.StatusBadRequest)
-			_, _ = writer.Write([]byte(err.Error()))
-			return
-		}
 		c.setMetrics(stats)
-
+		c.Status <- &ClientChannel{Status: MetricsCollectionSuccess, Err: nil}
-		log.Printf("New tick of statistics: %s", stats.ToString())
+		log.Printf("New tick of statistics from %s: %s", c.config.PIHoleHostname, stats)
-		promhttp.Handler().ServeHTTP(writer, request)
+	} else {
+		c.Status <- &ClientChannel{Status: MetricsCollectionError, Err: err}
+	}
 }
-}*/
 
 func (c *Client) CollectMetrics(writer http.ResponseWriter, request *http.Request) error {
-
 	stats, err := c.getStatistics()
 	if err != nil {
 		return err
 	}
 	c.setMetrics(stats)
-
+	log.Printf("New tick of statistics from %s: %s", c.config.PIHoleHostname, stats)
-	log.Printf("New tick of statistics from %s: %s", c, stats)
 	return nil
 }
 
@@ -92,10 +114,20 @@ func (c *Client) setMetrics(stats *Stats) {
 	metrics.UniqueClients.WithLabelValues(c.config.PIHoleHostname).Set(float64(stats.UniqueClients))
 	metrics.DNSQueriesAllTypes.WithLabelValues(c.config.PIHoleHostname).Set(float64(stats.DNSQueriesAllTypes))
 
+	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "unknown").Set(float64(stats.ReplyUnknown))
 	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "no_data").Set(float64(stats.ReplyNoData))
 	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "nx_domain").Set(float64(stats.ReplyNxDomain))
 	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "cname").Set(float64(stats.ReplyCname))
 	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "ip").Set(float64(stats.ReplyIP))
+	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "domain").Set(float64(stats.ReplyDomain))
+	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "rr_name").Set(float64(stats.ReplyRRName))
+	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "serv_fail").Set(float64(stats.ReplyServFail))
+	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "refused").Set(float64(stats.ReplyRefused))
+	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "not_imp").Set(float64(stats.ReplyNotImp))
+	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "other").Set(float64(stats.ReplyOther))
+	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "dnssec").Set(float64(stats.ReplyDNSSEC))
+	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "none").Set(float64(stats.ReplyNone))
+	metrics.Reply.WithLabelValues(c.config.PIHoleHostname, "blob").Set(float64(stats.ReplyBlob))
 
 	var isEnabled int = 0
 	if stats.Status == enabledStatus {
@@ -103,6 +135,12 @@ func (c *Client) setMetrics(stats *Stats) {
 	}
 	metrics.Status.WithLabelValues(c.config.PIHoleHostname).Set(float64(isEnabled))
 
+	// Pi-hole returns a subset of stats when Auth is missing or incorrect.
+	// This provides a warning to users that metrics are not complete.
+	if len(stats.TopQueries) == 0 {
+		log.Warnf("Invalid Authentication - Some metrics may be missing. Please confirm your Pi-hole API token / Password for %s", c.config.PIHoleHostname)
+	}
+
 	for domain, value := range stats.TopQueries {
 		metrics.TopQueries.WithLabelValues(c.config.PIHoleHostname, domain).Set(float64(value))
 	}
@@ -137,7 +175,7 @@ func (c *Client) getPHPSessionID() (sessionID string) {
 
 	resp, err := c.httpClient.Do(req)
 	if err != nil {
-		log.Printf("An error has occured during login to PI-Hole: %v", err)
+		log.Errorf("An error has occured during login to Pi-hole: %v", err)
 	}
 
 	for _, cookie := range resp.Cookies() {
@@ -170,17 +208,18 @@ func (c *Client) getStatistics() (*Stats, error) {
 
 	resp, err := c.httpClient.Do(req)
 	if err != nil {
-		return nil, fmt.Errorf("an error has occured during retrieving PI-Hole statistics: %w", err)
+		return nil, fmt.Errorf("an error has occured during retrieving Pi-hole statistics: %w", err)
 	}
 
+	defer resp.Body.Close()
 	body, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
-		return nil, fmt.Errorf("unable to read PI-Hole statistics HTTP response: %w", err)
+		return nil, fmt.Errorf("unable to read Pi-hole statistics HTTP response: %w", err)
 	}
 
 	err = json.Unmarshal(body, stats)
 	if err != nil {
-		return nil, fmt.Errorf("unable to unmarshal PI-Hole statistics to statistics struct model: %w", err)
+		return nil, fmt.Errorf("unable to unmarshal Pi-hole statistics to statistics struct model: %w", err)
 	}
 
 	return stats, nil

internal/pihole/model.go

@@ -6,7 +6,7 @@ const (
 	enabledStatus = "enabled"
 )
 
-// Stats struct is the PI-Hole statistics JSON API corresponding model.
+// Stats struct is the Pi-hole statistics JSON API corresponding model.
 type Stats struct {
 	DomainsBeingBlocked int                `json:"domains_being_blocked"`
 	DNSQueriesToday     int                `json:"dns_queries_today"`
@@ -18,10 +18,20 @@ type Stats struct {
 	ClientsEverSeen     int                `json:"clients_ever_seen"`
 	UniqueClients       int                `json:"unique_clients"`
 	DNSQueriesAllTypes  int                `json:"dns_queries_all_types"`
+	ReplyUnknown        int                `json:"reply_UNKNOWN"`
 	ReplyNoData         int                `json:"reply_NODATA"`
 	ReplyNxDomain       int                `json:"reply_NXDOMAIN"`
 	ReplyCname          int                `json:"reply_CNAME"`
 	ReplyIP             int                `json:"reply_IP"`
+	ReplyDomain         int                `json:"reply_DOMAIN"`
+	ReplyRRName         int                `json:"reply_RRNAME"`
+	ReplyServFail       int                `json:"reply_SERVFAIL"`
+	ReplyRefused        int                `json:"reply_REFUSED"`
+	ReplyNotImp         int                `json:"reply_NOTIMP"`
+	ReplyOther          int                `json:"reply_OTHER"`
+	ReplyDNSSEC         int                `json:"reply_DNSSEC"`
+	ReplyNone           int                `json:"reply_NONE"`
+	ReplyBlob           int                `json:"reply_BLOB"`
 	TopQueries          map[string]int     `json:"top_queries"`
 	TopAds              map[string]int     `json:"top_ads"`
 	TopSources          map[string]int     `json:"top_sources"`

internal/server/server.go

@@ -2,7 +2,6 @@ package server
 
 import (
 	"fmt"
-	"log"
 	"net/http"
 	"strconv"
 	"strings"
@@ -10,6 +9,7 @@ import (
 
 	"github.com/eko/pihole-exporter/internal/pihole"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
+	log "github.com/sirupsen/logrus"
 	"golang.org/x/net/context"
 )
 
@@ -20,34 +20,33 @@ type Server struct {
 
 // NewServer method initializes a new HTTP server instance and associates
 // the different routes that will be used by Prometheus (metrics) or for monitoring (readiness, liveness).
-func NewServer(port uint16, clients []*pihole.Client) *Server {
+func NewServer(addr string, port uint16, clients []*pihole.Client) *Server {
 	mux := http.NewServeMux()
-	httpServer := &http.Server{Addr: ":" + strconv.Itoa(int(port)), Handler: mux}
+	httpServer := &http.Server{
+		Addr:    addr + ":" + strconv.Itoa(int(port)),
+		Handler: mux,
+	}
 
 	s := &Server{
 		httpServer: httpServer,
 	}
 
-	mux.HandleFunc("/metrics",
+	mux.HandleFunc("/metrics", func(writer http.ResponseWriter, request *http.Request) {
-		func(writer http.ResponseWriter, request *http.Request) {
+		log.Printf("request.Header: %v\n", request.Header)
-			errors := make([]string, 0)
 
 		for _, client := range clients {
-				if err := client.CollectMetrics(writer, request); err != nil {
+			go client.CollectMetricsAsync(writer, request)
-					errors = append(errors, err.Error())
-					fmt.Printf("Error %s\n", err)
-				}
 		}
 
-			if len(errors) == len(clients) {
+		for _, client := range clients {
-				writer.WriteHeader(http.StatusBadRequest)
+			status := <-client.Status
-				body := strings.Join(errors, "\n")
+			if status.Status == pihole.MetricsCollectionError {
-				_, _ = writer.Write([]byte(body))
+				log.Printf("An error occured while contacting %s: %s", client.GetHostname(), status.Err.Error())
+			}
 		}
 
 		promhttp.Handler().ServeHTTP(writer, request)
-		},
+	})
-	)
 
 	mux.Handle("/readiness", s.readinessHandler())
 	mux.Handle("/liveness", s.livenessHandler())
@@ -73,6 +72,27 @@ func (s *Server) Stop() {
 	s.httpServer.Shutdown(ctx)
 }
 
+func (s *Server) handleMetrics(clients []*pihole.Client) http.HandlerFunc {
+	return func(writer http.ResponseWriter, request *http.Request) {
+		errors := make([]string, 0)
+
+		for _, client := range clients {
+			if err := client.CollectMetrics(writer, request); err != nil {
+				errors = append(errors, err.Error())
+				fmt.Printf("Error %s\n", err)
+			}
+		}
+
+		if len(errors) == len(clients) {
+			writer.WriteHeader(http.StatusBadRequest)
+			body := strings.Join(errors, "\n")
+			_, _ = writer.Write([]byte(body))
+		}
+
+		promhttp.Handler().ServeHTTP(writer, request)
+	}
+}
+
 func (s *Server) readinessHandler() http.HandlerFunc {
 	return func(w http.ResponseWriter, req *http.Request) {
 		if s.isReady() {

main.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"fmt"
 	"log"
 
 	"github.com/eko/pihole-exporter/config"
@@ -21,9 +20,9 @@ func main() {
 
 	serverDead := make(chan struct{})
 
-	clients := buildClients(clientConfigs)
+	clients := buildClients(clientConfigs, envConf)
 
-	s := server.NewServer(envConf.Port, clients)
+	s := server.NewServer(envConf.BindAddr, envConf.Port, clients)
 	go func() {
 		s.ListenAndServe()
 		close(serverDead)
@@ -41,15 +40,15 @@ func main() {
 	case <-serverDead:
 	}
 
-	fmt.Println("pihole-exporter HTTP server stopped")
+	log.Println("pihole-exporter HTTP server stopped")
 }
 
-func buildClients(clientConfigs []config.Config) []*pihole.Client {
+func buildClients(clientConfigs []config.Config, envConfig *config.EnvConfig) []*pihole.Client {
 	clients := make([]*pihole.Client, 0, len(clientConfigs))
 	for i := range clientConfigs {
 		clientConfig := &clientConfigs[i]
 
-		client := pihole.NewClient(clientConfig)
+		client := pihole.NewClient(clientConfig, envConfig)
 		clients = append(clients, client)
 	}
 	return clients