Generatore di configurazione Headscale

---
# Headscale 0.29.5: /etc/headscale/config.yaml
server_url: https://headscale.example.com
listen_addr: 0.0.0.0:8080
metrics_listen_addr: 0.0.0.0:9090
grpc_listen_addr: 127.0.0.1:50443
grpc_allow_insecure: false
trusted_proxies: []
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
    region_id: 999
    region_code: "headscale"
    region_name: "Headscale Embedded DERP"
    verify_clients: true
    stun_listen_addr: "0.0.0.0:3478"
    private_key_path: /var/lib/headscale/derp_server_private.key
    automatically_add_embedded_derp_region: true
  urls:
    - https://controlplane.tailscale.com/derpmap/default
  paths: []
  auto_update_enabled: true
  update_frequency: 3h
disable_check_updates: false
node:
  expiry: 0
  ephemeral:
    inactivity_timeout: 30m
database:
  type: sqlite
  sqlite:
    path: /var/lib/headscale/db.sqlite
    write_ahead_log: true
    wal_autocheckpoint: 1000
acme_url: https://acme-v02.api.letsencrypt.org/directory
acme_email: ""
tls_letsencrypt_hostname: ""
tls_letsencrypt_cache_dir: /var/lib/headscale/cache
tls_letsencrypt_challenge_type: HTTP-01
tls_letsencrypt_listen: ":http"
tls_cert_path: ""
tls_key_path: ""
log:
  level: info
  format: text
policy:
  mode: file
  path: "/etc/headscale/policy.json"
dns:
  magic_dns: true
  base_domain: ts.example.com
  override_local_dns: true
  nameservers:
    global:
      - 1.1.1.1
      - 1.0.0.1
      - 2606:4700:4700::1111
      - 2606:4700:4700::1001
    split: {}
  search_domains: []
  extra_records: []
unix_socket: /var/run/headscale/headscale.sock
unix_socket_permission: "0770"
logtail:
  enabled: false
taildrop:
  enabled: true

services:
  headscale:
    image: docker.io/headscale/headscale:0.29.5
    container_name: headscale
    restart: unless-stopped
    read_only: true
    tmpfs:
      - /var/run/headscale
    ports:
      - "127.0.0.1:8080:8080"
      - "127.0.0.1:9090:9090"
    volumes:
      - /opt/headscale/config:/etc/headscale:ro
      - /opt/headscale/lib:/var/lib/headscale
    command: serve
    healthcheck:
      test: ["CMD", "headscale", "health"]

  caddy:
    image: docker.io/library/caddy:2
    container_name: caddy
    restart: unless-stopped
    ports:
      - "80:80"
      - "443:443"
      - "443:443/udp"
    volumes:
      - /opt/headscale/Caddyfile:/etc/caddy/Caddyfile:ro
      - caddy_data:/data
      - caddy_config:/config
    depends_on:
      - headscale

volumes:
  caddy_data:
  caddy_config:

http://headscale.example.com {
	# Tailscale captive portal detection
	handle /generate_204 {
		respond 204
	}

	handle * {
		redir https://{host}{uri}
	}
}

headscale.example.com {
	reverse_proxy headscale:8080 {
		header_up True-Client-IP {remote_host}
		header_up X-Real-IP {remote_host}
	}
}

{
  "tagOwners": {
    "tag:exit": [
      "admin@"
    ]
  },
  "autoApprovers": {
    "exitNode": [
      "tag:exit"
    ]
  }
}

#!/usr/bin/env bash
set -euo pipefail

# 1. Installare Docker se manca (script ufficiale)
command -v docker >/dev/null || curl -fsSL https://get.docker.com | sudo sh

# 2. Cartelle per configurazione e dati
sudo mkdir -p /opt/headscale/config /opt/headscale/lib
cd /opt/headscale

# 3. Salva prima i file generati in questi percorsi
for f in config/config.yaml docker-compose.yaml Caddyfile config/policy.json; do
  [ -f "$f" ] || { echo "Missing /opt/headscale/$f"; exit 1; }
done

# 4. Avviare Headscale
sudo docker compose up -d
sleep 5

# 5. Verifica: deve stampare uno stato di salute in JSON
curl -fsS http://127.0.0.1:8080/health

# Creare il primo utente
sudo docker exec headscale headscale users create admin

# Annotare l'ID numerico dell'utente
sudo docker exec headscale headscale users list

# Creare una chiave preautenticata (vale 1 ora, monouso per impostazione predefinita)
sudo docker exec headscale headscale preauthkeys create --user <USER_ID>

# Su ogni dispositivo: accedere al tuo server Headscale
sudo tailscale up --login-server https://headscale.example.com --authkey <YOUR_AUTH_KEY>

# Sul VPS exit node: accedere con il tag per l'approvazione automatica
sudo tailscale up --login-server https://headscale.example.com --authkey <YOUR_AUTH_KEY> \
  --advertise-exit-node --advertise-tags=tag:exit

# Dopo aver modificato policy.json: ricaricare Headscale
sudo docker kill --signal=HUP headscale

# Accesso dal browser: approvare il dispositivo con l'Auth ID che mostra
sudo docker exec headscale headscale auth register --user admin --auth-id <AUTH_ID>

# Elencare i dispositivi collegati
sudo docker exec headscale headscale nodes list