feat(headscale): add self-hosted Tailscale control server stack

CLI-managed (no web UI), sqlite-backed, fronted by Traefik like the other stacks.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

README.md

@@ -17,6 +17,7 @@ Each stack is independently deployable with its own `compose.yml` and `.env`. Al
 | `coolify` | Deployment platform | coolify, realtime, redis, db |
 | `passbolt` | Password manager (GPG-encrypted, team sharing) | passbolt, db |
 | `code` | Browser-based VS Code IDE with Anthropic API access | code |
+| `headscale` | Self-hosted Tailscale control server (WireGuard mesh VPN) | headscale |
 
 ## Config files
 

headscale/.env.example

@@ -0,0 +1,2 @@
+TRAEFIK_HOST=headscale.example.com
+NETWORK_NAME=falcon_network

headscale/compose.yml

@@ -0,0 +1,37 @@
+services:
+  headscale:
+    image: headscale/headscale:latest
+    container_name: headscale
+    command: ["serve"]
+    environment:
+      TZ: ${TIMEZONE:-Europe/Amsterdam}
+      HEADSCALE_SERVER_URL: https://${TRAEFIK_HOST}
+    volumes:
+      - ./config.yaml:/etc/headscale/config.yaml:ro
+      - ../.data/headscale/data:/var/lib/headscale
+      - ../.data/headscale/run:/var/run/headscale
+    restart: always
+    healthcheck:
+      test: ["CMD", "/ko-app/headscale", "health"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 10s
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.middlewares.headscale-redirect-web-secure.redirectscheme.scheme=https"
+      - "traefik.http.routers.headscale-web.middlewares=headscale-redirect-web-secure"
+      - "traefik.http.routers.headscale-web.rule=Host(`${TRAEFIK_HOST}`)"
+      - "traefik.http.routers.headscale-web.entrypoints=web"
+      - "traefik.http.routers.headscale-web-secure.rule=Host(`${TRAEFIK_HOST}`)"
+      - "traefik.http.routers.headscale-web-secure.tls.certresolver=resolver"
+      - "traefik.http.routers.headscale-web-secure.entrypoints=web-secure"
+      - "traefik.http.routers.headscale-web-secure.middlewares=security-headers@file,no-index@file"
+      - "traefik.http.services.headscale-web-secure.loadbalancer.server.port=8080"
+      - "traefik.docker.network=${NETWORK_NAME}"
+    networks:
+      - compose_network
+networks:
+  compose_network:
+    name: ${NETWORK_NAME}
+    external: true

headscale/config.yaml

@@ -0,0 +1,64 @@
+# Base Headscale config. Host-specific values (server_url, listen addrs) are
+# overridden via HEADSCALE_* environment variables in compose.yml, following
+# headscale's viper env-binding (HEADSCALE_SERVER_URL overrides server_url, etc).
+# Full reference: https://github.com/juanfont/headscale/blob/main/config-example.yaml
+
+server_url: https://headscale.example.com
+listen_addr: 0.0.0.0:8080
+metrics_listen_addr: 127.0.0.1:9090
+grpc_listen_addr: 127.0.0.1:50443
+grpc_allow_insecure: false
+
+noise:
+  private_key_path: /var/lib/headscale/noise_private.key
+
+prefixes:
+  v4: 100.64.0.0/10
+  v6: fd7a:115c:a1e0::/48
+  allocation: sequential
+
+derp:
+  server:
+    enabled: false
+  urls:
+    - https://controlplane.tailscale.com/derpmap/default
+  paths: []
+  auto_update_enabled: true
+  update_frequency: 24h
+
+disable_check_updates: false
+
+node:
+  ephemeral:
+    inactivity_timeout: 30m
+
+database:
+  type: sqlite
+  sqlite:
+    path: /var/lib/headscale/db.sqlite
+    write_ahead_log: true
+
+unix_socket: /var/run/headscale/headscale.sock
+unix_socket_permission: "0770"
+
+log:
+  format: text
+  level: info
+
+policy:
+  mode: file
+  path: ""
+
+dns:
+  magic_dns: true
+  base_domain: hs.internal
+  nameservers:
+    global:
+      - 1.1.1.1
+      - 1.0.0.1
+  search_domains: []
+
+# TLS is terminated by Traefik; headscale itself serves plain HTTP internally.
+tls_letsencrypt_hostname: ""
+tls_cert_path: ""
+tls_key_path: ""