Added tailscale chart

Change-Id: Ife270e925cdffa92033de584ce20afbe1fe1cf2c

charts/tailscale/Chart.yaml

@@ -0,0 +1,11 @@
+---
+apiVersion: v1
+name: tailscale
+version: 0.0.0
+description: Tailscale for Kubernetes
+home: https://opendev.org/vexxhost/helm-charts
+maintainers:
+- name: Mohammed Naser
+  email: mnaser@vexxhost.com
+  url: https://github.com/mnaser
+appVersion: 1.0.4

charts/tailscale/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+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 -}}
+
+{{/*
+Generate basic labels
+*/}}
+{{- define "tailscale.labels" -}}
+app.kubernetes.io/name: {{ include "tailscale.fullname" . }}
+app.kubernetes.io/instance: {{ include "tailscale.chart" . }}
+{{- 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 -}}

charts/tailscale/templates/daemonset.yaml

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+---
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: {{ include "tailscale.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+{{ include "tailscale.labels" . | indent 4 }}
+spec:
+  selector:
+    matchLabels:
+{{ include "tailscale.labels" . | indent 6 }}
+  template:
+    metadata:
+      labels:
+{{ include "tailscale.labels" . | indent 8 }}
+    spec:
+      automountServiceAccountToken: false
+      hostNetwork: true
+      containers:
+      - name: tailscale
+        image: vexxhost/tailscale:latest
+        lifecycle:
+          postStart:
+            exec:
+              command: ["/bin/sh", "-c", "while [ ! -S /var/run/tailscale/tailscaled.sock ]; do sleep 1; done; tailscale up -authkey {{ .Values.authKey }}"]
+        volumeMounts:
+        - name: tailscale-state
+          mountPath: /var/lib/tailscale
+        - name: dev-tun
+          mountPath: /dev/net/tun
+        securityContext:
+          capabilities:
+            add: ["NET_ADMIN"]
+      volumes:
+      - name: tailscale-state
+        hostPath:
+          path: /var/lib/tailscale
+          type: DirectoryOrCreate
+      - name: dev-tun
+        hostPath:
+          type: CharDevice
+          path: /dev/net/tun
+
+
+

charts/tailscale/values.yaml

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+---