feat(headscale): init

headscale/.helmignore

@@ -0,0 +1,23 @@
+# 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
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

headscale/Chart.yaml

@@ -0,0 +1,12 @@
+apiVersion: v2
+name: headscale
+description: An open source, self-hosted implementation of the Tailscale control server.
+icon: https://raw.githubusercontent.com/juanfont/headscale/56a7b1e34952c3e0306a134b2be9b4277f5d8d6e/docs/logo/headscale3-dots.svg
+type: application
+version: 0.1.0
+appVersion: "0.22.3"
+keywords:
+  - headscale
+  - tailscale
+  - wireguard
+  - vpn

headscale/templates/NOTES.txt

@@ -0,0 +1,22 @@
+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 }}://{{ $host.host }}{{ .path }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "headscale.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "headscale.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "headscale.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  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 "headscale.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
+{{- end }}

headscale/templates/_helpers.tpl

@@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "headscale.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 "headscale.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 "headscale.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "headscale.labels" -}}
+helm.sh/chart: {{ include "headscale.chart" . }}
+{{ include "headscale.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "headscale.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "headscale.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "headscale.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "headscale.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

headscale/templates/certificate.yaml

@@ -0,0 +1,12 @@
+{{- if and .Values.headscale.certmanager.enabled (.Capabilities.APIVersions.Has "cert-manager.io/v1/Certificate") }}
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: {{ include "headscale.fullname" . }}
+spec:
+  secretName: {{ include "headscale.fullname" . }}-cert
+  dnsNames:
+    {{- toYaml .Values.headscale.certmanager.dnsNames | nindent 4 }}
+  issuerRef:
+    {{- toYaml .Values.headscale.certmanager.issuerRef | nindent 4 }}
+{{- end }}

headscale/templates/deployment.yaml

@@ -0,0 +1,119 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "headscale.fullname" . }}
+  labels:
+    {{- include "headscale.labels" . | nindent 4 }}
+spec:
+  {{- if not .Values.autoscaling.enabled }}
+  replicas: {{ .Values.replicaCount }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "headscale.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      annotations:
+        config-hash: {{ toYaml .Values.headscale.config | sha256sum | trunc 32 }}
+        {{- with .Values.podAnnotations }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
+      labels:
+        {{- include "headscale.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "headscale.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          args:
+            - "headscale"
+            - "serve"
+          ports:
+            - name: http
+              containerPort: {{ .Values.service.port.http }}
+              protocol: TCP
+            - name: metrics
+              containerPort: {{ .Values.service.port.metrics }}
+              protocol: TCP
+            - name: grpc
+              containerPort: {{ .Values.service.port.grpc }}
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: http
+              scheme: HTTPS
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: http
+              scheme: HTTPS
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          volumeMounts:
+            - name: config
+              mountPath: "/etc/headscale"
+              readOnly: true
+            - name: keys
+              mountPath: "/etc/headscale/secrets"
+              readOnly: true
+            {{- if .Values.headscale.certmanager.enabled }}
+            - name: certs
+              mountPath: "/etc/headscale/certs"
+              readOnly: true
+            {{- end }}
+            - name: "data"
+              mountPath: "/var/lib/headscale"
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      volumes:
+        - name: config
+          secret:
+            secretName: {{ include "headscale.fullname" . }}
+            items:
+             - key: "config.yaml"
+               path: "config.yaml"
+        - name: keys
+          secret:
+            secretName: {{ default (print ( include "headscale.fullname" . ) "-keys") $.Values.headscale.keys.existingSecret | quote }}
+            items:
+             - key: "wireguard.key"
+               path: "wireguard.key"
+             - key: "noise.key"
+               path: "noise.key"
+        {{- if .Values.headscale.certmanager.enabled }}
+        - name: certs
+          secret:
+            secretName: {{ include "headscale.fullname" . }}-cert
+            items:
+             - key: "tls.crt"
+               path: "tls.crt"
+             - key: "tls.key"
+               path: "tls.key"
+        {{- end }}
+        - name: "data"
+          {{- if .Values.persistence.enabled }}
+          persistentVolumeClaim:
+            claimName: {{ default .Values.persistence.existingClaim (include "headscale.fullname" .) }}
+          {{- else }}
+          emptyDir: {}
+          {{- end }}

headscale/templates/hpa.yaml

@@ -0,0 +1,32 @@
+{{- if .Values.autoscaling.enabled }}
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "headscale.fullname" . }}
+  labels:
+    {{- include "headscale.labels" . | nindent 4 }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "headscale.fullname" . }}
+  minReplicas: {{ .Values.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.autoscaling.maxReplicas }}
+  metrics:
+    {{- if .Values.autoscaling.targetCPUUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.autoscaling.targetCPUUtilizationPercentage }}
+    {{- end }}
+    {{- if .Values.autoscaling.targetMemoryUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: memory
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.autoscaling.targetMemoryUtilizationPercentage }}
+    {{- end }}
+{{- end }}

headscale/templates/ingress.yaml

@@ -0,0 +1,66 @@
+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "headscale.fullname" . -}}
+{{- $svcPort := .Values.service.port.http -}}
+{{- if and .Values.ingress.className (not (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion)) }}
+  {{- if not (hasKey .Values.ingress.annotations "kubernetes.io/ingress.class") }}
+  {{- $_ := set .Values.ingress.annotations "kubernetes.io/ingress.class" .Values.ingress.className}}
+  {{- end }}
+{{- end }}
+{{- if semverCompare ">=1.19-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1
+{{- else if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    {{- include "headscale.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if and .Values.ingress.className (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion) }}
+  ingressClassName: {{ .Values.ingress.className }}
+  {{- end }}
+  {{- if .Values.ingress.tls }}
+  tls:
+    {{- range .Values.ingress.tls }}
+    - hosts:
+        {{- range .hosts }}
+        - {{ . | quote }}
+        {{- end }}
+      secretName: {{ .secretName }}
+    {{- end }}
+  {{- else if .Values.headscale.certmanager.enabled }}
+  tls:
+    - secretName: {{ include "headscale.fullname" . }}-cert
+      hosts:
+        {{- toYaml .Values.headscale.certmanager.dnsNames | nindent 8 }}
+  {{- end }}
+  rules:
+    {{- range .Values.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+          {{- range .paths }}
+          - path: {{ .path }}
+            {{- if and .pathType (semverCompare ">=1.18-0" $.Capabilities.KubeVersion.GitVersion) }}
+            pathType: {{ .pathType }}
+            {{- end }}
+            backend:
+              {{- if semverCompare ">=1.19-0" $.Capabilities.KubeVersion.GitVersion }}
+              service:
+                name: {{ $fullName }}
+                port:
+                  name: http
+              {{- else }}
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+              {{- end }}
+          {{- end }}
+    {{- end }}
+{{- end }}

headscale/templates/jobs.yaml

@@ -0,0 +1,122 @@
+{{ if and .Values.headscale.keys.create (not .Values.headscale.keys.existingSecret ) }}
+{{ $name := (print ( include "headscale.fullname" . ) "-keys") }}
+{{ $secretName := (print ( include "headscale.fullname" . ) "-keys") }}
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  annotations:
+    helm.sh/resource-policy: keep
+  name: {{ $name }}
+type: Opaque
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ $name }}
+  labels:
+    app.kubernetes.io/component: keys-job
+    {{- include "headscale.labels" . | nindent 4 }}
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: {{ $name }}
+  labels:
+    app.kubernetes.io/component: keys-job
+    {{- include "headscale.labels" . | nindent 4 }}
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - secrets
+    resourceNames:
+      - {{ $secretName }}
+    verbs:
+      - get
+      - update
+      - patch
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: {{ $name }}
+  labels:
+    app.kubernetes.io/component: keys-job
+    {{- include "headscale.labels" . | nindent 4 }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: {{ $name }}
+subjects:
+  - kind: ServiceAccount
+    name: {{ $name }}
+    namespace: {{ .Release.Namespace }}
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: {{ $name }}
+  labels:
+    {{- include "headscale.labels" . | nindent 4 }}
+spec:
+  template:
+    spec:
+      restartPolicy: "Never"
+      serviceAccount: {{ $name }}
+      containers:
+       - name: upload-key
+         image: bitnami/kubectl
+         command:
+          - sh
+          - -c
+          - | 
+            # check if key already exists
+            key=$(kubectl get secret {{ $secretName }} -o jsonpath="{.data['wireguard.key']}" 2> /dev/null)
+            [ $? -ne 0 ] && echo "Failed to get existing secret" && exit 1
+            [ -n "$key" ] && echo "Key already created, exiting." && exit 0
+            # wait for wireguard key
+            while [ ! -f /etc/headscale/secrets/wireguard.key ]; do
+              echo "Waiting for wireguard key.."
+              sleep 5;
+            done
+            # update secret
+            kubectl patch secret {{ $secretName }} -p "{\"data\":{\"wireguard.key\":\"$(base64 /etc/headscale/secrets/wireguard.key | tr -d '\n')\"}}"
+            kubectl patch secret {{ $secretName }} -p "{\"data\":{\"noise.key\":\"$(base64 /etc/headscale/secrets/noise.key | tr -d '\n')\"}}"
+            [ $? -ne 0 ] && echo "Failed to update secret." && exit 1
+            echo "Signing key successfully created."
+         volumeMounts:
+          - mountPath: /etc/headscale/secrets
+            name: secrets
+            readOnly: true
+       - name: generate-key
+         image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+         imagePullPolicy: {{ .Values.image.pullPolicy }}
+         command:
+          - sh 
+          - -c
+          - |
+            set -e
+            /bin/headscale generate private-key | tail -1 | sed 's/privkey://' > /etc/headscale/secrets/wireguard.key
+            chown 1001:1001 /etc/headscale/secrets/wireguard.key
+            /bin/headscale generate private-key | tail -1 | sed 's/privkey://' > /etc/headscale/secrets/noise.key
+            chown 1001:1001 /etc/headscale/secrets/noise.key
+         volumeMounts:
+          - name: config
+            mountPath: "/etc/headscale"
+            readOnly: true
+          - mountPath: "/etc/headscale/secrets"
+            name: secrets
+      volumes:
+       - name: config
+         secret:
+           secretName: {{ include "headscale.fullname" . }}
+           items:
+            - key: "config.yaml"
+              path: "config.yaml"
+       - name: secrets
+         emptyDir: {}
+  parallelism: 1
+  completions: 1
+  backoffLimit: 1
+{{ end }}

headscale/templates/pvc.yaml

@@ -0,0 +1,50 @@
+{{- if and .Values.persistence.enabled ( not .Values.persistence.existingClaim) -}}
+---
+{{- if .Values.persistence.hostPath }}
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: {{ template "headscale.fullname" . }}
+  labels:
+    {{- include "headscale.labels" . | nindent 4 }}
+  {{- if .Values.persistence.annotations }}
+  annotations:
+    {{ toYaml .Values.persistence.annotations | indent 4 }}
+  {{- end }}
+spec:
+  storageClassName: manual
+  capacity:
+    storage: {{ .Values.persistence.size | quote }}
+  accessModes:
+    - {{ .Values.persistence.accessMode | quote }}
+  hostPath:
+    path: "{{ .Values.persistence.hostPath }}"
+---
+{{- end }}
+kind: PersistentVolumeClaim
+apiVersion: v1
+metadata:
+  name: {{ template "headscale.fullname" . }}
+  labels:
+    {{- include "headscale.labels" . | nindent 4 }}
+  {{- if .Values.persistence.annotations }}
+  annotations:
+    {{ toYaml .Values.persistence.annotations | indent 4 }}
+  {{- end }}
+spec:
+  accessModes:
+    - {{ .Values.persistence.accessMode | quote }}
+  resources:
+    requests:
+      storage: {{ .Values.persistence.size | quote }}
+  {{- if .Values.persistence.storageClass }}
+  {{- if (eq "-" .Values.persistence.storageClass) }}
+  storageClassName: ""
+  {{- else }}
+  storageClassName: "{{ .Values.persistence.storageClass }}"
+  {{- end }}
+  {{- end }}
+  {{- if .Values.persistence.hostPath }}
+  volumeName: {{ template "headscale.fullname" . }}
+  {{- end }}
+{{- end -}}

headscale/templates/secret.yaml

@@ -0,0 +1,11 @@
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "headscale.fullname" . }}
+  annotations:
+    config-hash: {{ toYaml .Values.headscale.config | sha256sum | trunc 32 }}
+type: Opaque
+stringData:
+  config.yaml: |
+    {{- toYaml .Values.headscale.config | nindent 4 }}

headscale/templates/service.yaml

@@ -0,0 +1,27 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "headscale.fullname" . }}
+  labels:
+    {{- include "headscale.labels" . | nindent 4 }}
+  {{- with .Values.service.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4}}
+  {{- end }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port.http }}
+      targetPort: http
+      protocol: TCP
+      name: http
+    - port: {{ .Values.service.port.metrics }}
+      targetPort: metrics
+      protocol: TCP
+      name: metrics
+    - port: {{ .Values.service.port.grpc }}
+      targetPort: grpc
+      protocol: TCP
+      name: grpc
+  selector:
+    {{- include "headscale.selectorLabels" . | nindent 4 }}

headscale/templates/serviceaccount.yaml

@@ -0,0 +1,12 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "headscale.serviceAccountName" . }}
+  labels:
+    {{- include "headscale.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}

headscale/templates/servicemonitor.yaml

@@ -0,0 +1,21 @@
+{{- if and .Values.prometheus.servicemonitor.enabled (.Capabilities.APIVersions.Has "monitoring.coreos.com/v1") }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ include "headscale.fullname" . }}
+  labels:
+    {{- include "headscale.labels" . | nindent 4 }}
+    {{- with .Values.prometheus.servicemonitor.labels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+spec:
+  endpoints:
+    - port: metrics
+      path: /metrics
+      {{- if .Values.headscale.certmanager.enabled }}
+      scheme: https
+      {{- end }}
+  selector:
+    matchLabels:
+      {{- include "headscale.selectorLabels" . | nindent 6 }}
+{{- end }}

headscale/templates/tests/test-connection.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{ include "headscale.fullname" . }}-test-connection"
+  labels:
+    {{- include "headscale.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test
+spec:
+  containers:
+    - name: wget
+      image: busybox
+      command: ['wget']
+      args: ['{{ include "headscale.fullname" . }}:{{ .Values.service.port }}']
+  restartPolicy: Never

headscale/values.yaml

@@ -0,0 +1,181 @@
+# Default values for headscale.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+  repository: headscale/headscale
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: ""
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+headscale:
+  keys:
+    # -- Create a new private key, if not exists
+    create: true
+    # -- Use an existing secret
+    existingSecret: ""
+  
+  certmanager:
+    enabled: true
+    dnsNames:
+      - example.com
+    issuerRef:
+      group: cert-manager.io
+      kind: ClusterIssuer
+      name: letsencrypt-prod
+  config:
+    listen_addr: ":8080"
+    metrics_listen_addr: ":9090"
+    grpc_listen_addr: ":50443"
+
+    server_url: http://127.0.0.1:8080    
+
+    # SQLite config
+    db_type: sqlite3
+
+    # For production:
+    db_path: /var/lib/headscale/db.sqlite
+
+    # # Postgres config
+    # If using a Unix socket to connect to Postgres, set the socket path in the 'host' field and leave 'port' blank.
+    # db_type: postgres
+    # db_host: localhost
+    # db_port: 5432
+    # db_name: headscale
+    # db_user: foo
+    # db_pass: bar
+    private_key_path: "/etc/headscale/secrets/wireguard.key"
+    noise:    
+      private_key_path: "/etc/headscale/secrets/noise.key"
+    # # certs
+    # use certmanager instatt of internal acme:
+    ## Use already defined certificates:
+    tls_cert_path: "/etc/headscale/certs/tls.crt"
+    tls_key_path: "/etc/headscale/certs/tls.key"
+
+prometheus:
+  servicemonitor:
+    enabled: false
+    labels: {}
+  rules:
+    enabled: false
+    labels: {}
+    # current no default alertrules are provided
+    additionalRules: []
+
+## Enable persistence using Persistent Volume Claims
+## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/
+##
+persistence:
+  # Upload (/var/lib/headscale)
+  enabled: false
+  annotations: {}
+  ## mobilizon data Persistent Volume Storage Class
+  ## If defined, storageClassName: <storageClass>
+  ## If set to "-", storageClassName: "", which disables dynamic provisioning
+  ## If undefined (the default) or set to null, no storageClassName spec is
+  ##   set, choosing the default provisioner.  (gp2 on AWS, standard on
+  ##   GKE, AWS & OpenStack)
+  ##
+  # storageClass: "-"
+
+  ## A manually managed Persistent Volume and Claim
+  ## Requires persistence.enabled: true
+  ## If defined, PVC must be created manually before volume will be bound
+  # existingClaim:
+
+  ## Create a PV on Node with given hostPath
+  ## storageClass has to be manual
+  # hostPath: 
+  accessMode: ReadWriteOnce
+  size: 1Gi
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
+
+securityContext: {}
+  # capabilities:
+  #   drop:
+  #   - ALL
+  # readOnlyRootFilesystem: true
+  # runAsNonRoot: true
+  # runAsUser: 1000
+
+service:
+  type: ClusterIP
+  annotations:
+    # for usage with certmanager (pod certs) and traefik
+    # traefik.ingress.kubernetes.io/service.serversscheme: https
+    # traefik.ingress.kubernetes.io/service.serverstransport: <namespace>-insecure@kubernetescrd
+    # CRD:
+    #  apiVersion: traefik.io/v1alpha1
+    #  kind: ServersTransport
+    #  metadata:
+    #    name: insecure
+    #  spec:
+    #    insecureSkipVerify: true
+  port:
+    http: 8080
+    metrics: 9090
+    grpc: 50443
+
+ingress:
+  enabled: false
+  className: ""
+  annotations: {}
+    # for usage with certmanager (pod certs) and nginx
+    # nginx.ingress.kubernetes.io/backend-protocol: "HTTPS"
+    # 
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: chart-example.local
+      paths:
+        - path: /
+          pathType: ImplementationSpecific
+  tls: []
+  #  - secretName: chart-example-tls
+  #    hosts:
+  #      - chart-example.local
+
+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
+
+autoscaling:
+  enabled: false
+  minReplicas: 1
+  maxReplicas: 100
+  targetCPUUtilizationPercentage: 80
+  # targetMemoryUtilizationPercentage: 80
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}