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# Patterns to ignore when building packages.
# This supports shell glob matching, relative path matching, and
# negation (prefixed with !). Only one pattern per line.
.DS_Store
# Common VCS dirs
.git/
.gitignore
.bzr/
.bzrignore
.hg/
.hgignore
.svn/
# Common backup files
*.swp
*.bak
*.tmp
*~
# Various IDEs
.project
.idea/
*.tmproj
.vscode/

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apiVersion: v1
name: pihole-exporter
appVersion: "0.0.1"
description: A Helm chart for Pihole Exporter to export metrics to Prometheus
name: pihole-exporter
sources:
- https://github.com/eko/pihole-exporter
maintainers:
- name: Simon Garcia
email: deportivo2005@gmail.com
version: 1.1.0

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# Pihole Exporter Helm Chart
TL;DR;
```
helm install -name pihole-exporter --namespace pihole ./
```
Using an auth token:
```
helm install \
-name pihole-exporter \
--namespace pihole \
--set secretEnvVars.PIHOLE_APITOKEN=myPiHoleApiToken \
./
```
Using a password:
```
helm install \
-name pihole-exporter \
--namespace pihole \
--set secretEnvVars.PIHOLE_PASSWORD=myPiHolePassword \
./
```
Setting the hostname with a password:
```
helm install \
-name pihole-exporter \
--namespace pihole \
--set secretEnvVars.PIHOLE_PASSWORD=myPiHolePassword \
--set extraEnvVars.PIHOLE_HOSTNAME=my.pihole.server \
./
```
## Introduction
This chart deploys the pihole-exporter by eko - https://github.com/eko/pihole-exporter to a kubernetes cluster.
## Notes
I have not set a default configuration, please modify the values.yaml file with your correct config settings.
## Configuration
| Parameter | Description | Default |
| :---------------------------- | :------------------------------------ | ------: |
| service.port | Port for the kubernetes service | 9617 |
| extraEnvVars.INTERVAL | How often to poll pihole stats | 10s |
| extraEnvVars.PIHOLE_HOSTNAME | Pihole Hostname | None |
| secretEnvVars.PIHOLE_PASSWORD | Pihole admin user password | None |
| secretEnvVars.PIHOLE_APITOKEN | Pihole api token | None |
| extraEnvVars.PORT | Change default webserver port for app | 9617 |

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1. Get the application URL by running these commands:
{{- if .Values.ingress.enabled }}
{{- range $host := .Values.ingress.hosts }}
{{- range .paths }}
http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ . }}
{{- end }}
{{- end }}
{{- else if contains "NodePort" .Values.service.type }}
export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "pihole-exporter.fullname" . }})
export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
echo http://$NODE_IP:$NODE_PORT
{{- else if contains "LoadBalancer" .Values.service.type }}
NOTE: It may take a few minutes for the LoadBalancer IP to be available.
You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "pihole-exporter.fullname" . }}'
export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "pihole-exporter.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
echo http://$SERVICE_IP:{{ .Values.service.port }}
{{- else if contains "ClusterIP" .Values.service.type }}
export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "pihole-exporter.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
kubectl port-forward --namespace {{ .Release.Namespace }} $POD_NAME 8080:{{ .Values.service.port }}
echo "Test your service with `curl -s http://127.0.0.1:8080/metrics`"
{{- end }}

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{{/* vim: set filetype=mustache: */}}
{{/*
Expand the name of the chart.
*/}}
{{- define "pihole-exporter.name" -}}
{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
{{- end -}}
{{/*
Create a default fully qualified app name.
We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
If release name contains chart name it will be used as a full name.
*/}}
{{- define "pihole-exporter.fullname" -}}
{{- if .Values.fullnameOverride -}}
{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- $name := default .Chart.Name .Values.nameOverride -}}
{{- if contains $name .Release.Name -}}
{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
{{- end -}}
{{- end -}}
{{- end -}}
{{/*
Create chart name and version as used by the chart label.
*/}}
{{- define "pihole-exporter.chart" -}}
{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
{{- end -}}
{{/*
Common labels
*/}}
{{- define "pihole-exporter.labels" -}}
app.kubernetes.io/name: {{ include "pihole-exporter.name" . }}
helm.sh/chart: {{ include "pihole-exporter.chart" . }}
app.kubernetes.io/instance: {{ .Release.Name }}
{{- if .Chart.AppVersion }}
app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
{{- end }}
app.kubernetes.io/managed-by: {{ .Release.Service }}
{{- end -}}

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apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "pihole-exporter.fullname" . }}
labels:
{{ include "pihole-exporter.labels" . | indent 4 }}
spec:
replicas: {{ .Values.replicaCount }}
selector:
matchLabels:
app.kubernetes.io/name: {{ include "pihole-exporter.name" . }}
app.kubernetes.io/instance: {{ .Release.Name }}
template:
metadata:
{{- with .Values.annotations }}
annotations:
{{- toYaml . | nindent 8 }}
{{- end }}
labels:
app.kubernetes.io/name: {{ include "pihole-exporter.name" . }}
app.kubernetes.io/instance: {{ .Release.Name }}
spec:
{{- with .Values.imagePullSecrets }}
imagePullSecrets:
{{- toYaml . | nindent 8 }}
{{- end }}
automountServiceAccountToken: false
containers:
- name: {{ .Chart.Name }}
image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
imagePullPolicy: {{ .Values.image.pullPolicy }}
env:
{{- range $key, $value := .Values.extraEnvVars }}
- name: {{ $key | quote }}
value: {{ $value | quote }}
{{- end }}
{{ if .Values.secretEnvVars }}
envFrom:
- secretRef:
name: {{ include "pihole-exporter.fullname" . }}
{{- end }}
ports:
- name: httpexporter
containerPort: {{ .Values.service.port }}
protocol: TCP
livenessProbe:
httpGet:
path: /liveness
port: {{ .Values.service.port }}
readinessProbe:
httpGet:
path: /readiness
port: {{ .Values.service.port }}
resources:
{{- toYaml .Values.resources | nindent 12 }}
{{- with .Values.securityContext }}
securityContext:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.nodeSelector }}
nodeSelector:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
{{- end }}

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{{- if .Values.ingress.enabled -}}
{{- $fullName := include "pihole-exporter.fullname" . -}}
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: {{ $fullName }}
labels:
{{ include "pihole-exporter.labels" . | indent 4 }}
{{- with .Values.ingress.annotations }}
annotations:
{{- toYaml . | nindent 4 }}
{{- end }}
spec:
{{- if .Values.ingress.tls }}
tls:
{{- range .Values.ingress.tls }}
- hosts:
{{- range .hosts }}
- {{ . | quote }}
{{- end }}
secretName: {{ .secretName }}
{{- end }}
{{- end }}
rules:
{{- range .Values.ingress.hosts }}
- host: {{ .host | quote }}
http:
paths:
{{- range .paths }}
- path: {{ . }}
backend:
serviceName: {{ $fullName }}
servicePort: http
{{- end }}
{{- end }}
{{- end }}

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{{ if .Values.secretEnvVars }}
apiVersion: v1
kind: Secret
metadata:
name: {{ include "pihole-exporter.fullname" . }}
labels:
{{ include "pihole-exporter.labels" . | indent 4 }}
type: Opaque
data:
{{ if .Values.secretEnvVars.PIHOLE_PASSWORD }}
PIHOLE_PASSWORD: {{ .Values.secretEnvVars.PIHOLE_PASSWORD | b64enc | quote }}
{{ end }}
{{ if .Values.secretEnvVars.PIHOLE_APITOKEN }}
PIHOLE_APITOKEN: {{ .Values.secretEnvVars.PIHOLE_APITOKEN | b64enc | quote }}
{{ end }}
{{ end }}

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apiVersion: v1
kind: Service
metadata:
name: {{ include "pihole-exporter.fullname" . }}
labels:
{{ include "pihole-exporter.labels" . | indent 4 }}
spec:
type: {{ .Values.service.type }}
ports:
- port: {{ .Values.service.port }}
targetPort: {{ .Values.service.port }}
protocol: TCP
name: exporter-port
selector:
app.kubernetes.io/name: {{ include "pihole-exporter.name" . }}
app.kubernetes.io/instance: {{ .Release.Name }}

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apiVersion: v1
kind: Pod
metadata:
name: "{{ include "pihole-exporter.fullname" . }}-test-connection"
labels:
{{ include "pihole-exporter.labels" . | indent 4 }}
annotations:
"helm.sh/hook": test-success
spec:
containers:
- name: wget
image: busybox
command: ['wget']
args: ['{{ include "pihole-exporter.fullname" . }}:{{ .Values.service.port }}']
restartPolicy: Never

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# Default values for pihole-exporter.
# This is a YAML-formatted file.
# Declare variables to be passed into your templates.
replicaCount: 1
image:
repository: ekofr/pihole-exporter
tag: latest
pullPolicy: IfNotPresent
imagePullSecrets: []
nameOverride: ""
fullnameOverride: ""
service:
type: ClusterIP
port: 9617 #DefaultImagePort-CanBeChangedBelow
ingress:
enabled: false
annotations: {}
# kubernetes.io/ingress.class: nginx
# kubernetes.io/tls-acme: "true"
hosts:
- host: pihole-host.local
paths: {}
tls: []
# - secretName: chart-example-tls
# hosts:
# - chart-example.local
extraEnvVars:
INTERVAL: 10s,
PIHOLE_HOSTNAME: 192.168.11.53,192.168.11.54
PIHOLE_PORT: 80 #Change the port the exporter tries to access your Pihole Service on
PORT: 9617 #ChangeDefaultWebserverPort
secretEnvVars:
# PIHOLE_PASSWORD:
PIHOLE_API_TOKEN: 447e0a900a008b3ab0b3b8533f88353bb712c6fcdf84a7cdfeeec524f6b92898
resources: {}
# We usually recommend not to specify default resources and to leave this as a conscious
# choice for the user. This also increases chances charts run on environments with little
# resources, such as Minikube. If you do want to specify resources, uncomment the following
# lines, adjust them as necessary, and remove the curly braces after 'resources:'.
# limits:
# cpu: 100m
# memory: 128Mi
# requests:
# cpu: 100m
# memory: 128Mi
nodeSelector: {}
tolerations: []
affinity: {}
securityContext: {}
annotations: {}