Merge pull request #12 from cloudkite-io/add-tailscale-vpn

publish tailscale vpn helm chart

.github/workflows/tailscale-publish.yaml

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+name: Publish Tailscale VPN Chart
+
+env:
+  CHART_NAME: tailscale
+  GAR_LOCATION: us-central1
+  PROJECT_NAME: cloudkite-public
+  PROJECT_ID: 297731695546
+  REPOSITORY: public-helm-charts
+
+on:
+  workflow_dispatch:
+  push:
+    branches: [main]
+    paths: [tailscale/**]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Authenticate to Google Cloud
+        id: auth
+        uses: google-github-actions/auth@v0
+        with:
+          workload_identity_provider: projects/${{ env.PROJECT_ID }}/locations/global/workloadIdentityPools/github-actions/providers/github-oidc
+          service_account: github-actions@${{ env.PROJECT_NAME }}.iam.gserviceaccount.com
+      - name: Set up Cloud SDK
+        uses: google-github-actions/setup-gcloud@v0
+      - name: Docker configuration
+        run: gcloud auth configure-docker $GAR_LOCATION-docker.pkg.dev --quiet
+      - name: Update dependencies
+        working-directory: ${{ env.CHART_NAME }}
+        run: helm dependency update
+      - name: Package chart
+        run: helm package $CHART_NAME
+      - name: Push chart
+        run: helm push $CHART_NAME-*.tgz oci://$GAR_LOCATION-docker.pkg.dev/$PROJECT_NAME/$REPOSITORY

tailscale/.helmignore

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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
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

tailscale/Chart.yaml

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+apiVersion: v2
+name: tailscale
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "1.16.0"

tailscale/templates/_helpers.tpl

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

tailscale/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "tailscale.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "tailscale.labels" . | nindent 4 }}
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      {{- include "tailscale.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        {{- include "tailscale.selectorLabels" . | nindent 8 }}
+    spec:
+    {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+      serviceAccountName: {{  include "tailscale.fullname" .  }}
+      securityContext:
+        runAsUser: 1000
+        runAsGroup: 1000
+      containers:
+        - name: tailscale
+          imagePullPolicy: Always
+          image: "ghcr.io/tailscale/tailscale:latest"
+          env:
+          # Store the state in a k8s secret
+          - name: TS_KUBE_SECRET
+            value: {{ include "tailscale.fullname" . }}
+          - name: TS_USERSPACE
+            value: "true"
+          - name: TS_ACCEPT_DNS
+            value: "true"
+          - name: TS_EXTRA_ARGS
+            value: "--advertise-tags={{ .Values.tags }} --hostname={{ include "tailscale.fullname" . }}-{{ .Values.env }}-cluster"
+          - name: TS_AUTH_KEY
+            valueFrom:
+              secretKeyRef:
+                name: {{ include "tailscale.fullname" . }}
+                key: TS_AUTH_KEY
+                optional: true
+          - name: TS_ROUTES
+            value: {{ .Values.TS_ROUTES }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+    {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}

tailscale/templates/role.yaml

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+# Copyright (c) Tailscale Inc & AUTHORS
+# SPDX-License-Identifier: BSD-3-Clause
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: {{ include "tailscale.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+rules:
+- apiGroups: [""] # "" indicates the core API group
+  resources: ["secrets"]
+  # Create can not be restricted to a resource name.
+  verbs: ["create"]
+- apiGroups: [""] # "" indicates the core API group
+  resourceNames: [{{ include "tailscale.fullname" . }}]
+  resources: ["secrets"]
+  verbs: ["get", "update", "patch"]

tailscale/templates/rolebinding.yaml

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+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: {{ include "tailscale.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+subjects:
+- kind: ServiceAccount
+  name: {{ include "tailscale.fullname" .  }}
+roleRef:
+  kind: Role
+  name: tailscale
+  apiGroup: rbac.authorization.k8s.io

tailscale/templates/secret.yaml

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+{{- if .Values.authKey }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "tailscale.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+stringData:
+  TS_AUTH_KEY: {{ .Values.authKey }}
+{{- end }}

tailscale/templates/serviceaccount.yaml

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+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "tailscale.fullname" . }}
+  namespace: {{ .Release.Namespace }}

tailscale/values.yaml

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+env: dev
+# comma seperated routes to advertise example 0.0.0.1/24, 0.0.0.1/32
+TS_ROUTES: ''
+# auth key generated from tailscale admin console
+authKey: tskey-auth-xxxxx
+# comma separated ACL tags, example, tag:server,tag:development
+tags: tag:server