Initial commit: self-hosted Docker setup for OpenFrontIO

Includes docker-compose, setup script, nginx reverse proxy docs,
and GAME_ENV configuration notes for self-hosted deployments.

.env.example

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+# ============================================================
+# OpenFrontIO — Docker Compose Environment Configuration
+# Copy this file to .env and adjust values as needed.
+# ============================================================
+
+# Port to expose the game on the host machine (default: 80)
+HOST_PORT=8989
+
+# Git commit hash embedded in the build for version tracking.
+# Automatically set by setup.sh. Can also be pinned to a specific commit.
+GIT_COMMIT=unknown
+
+# Game environment: dev | staging | prod
+# Must be set, otherwise /api/env returns HTTP 500 and the frontend breaks.
+# Use "dev" for self-hosted setups — prod/staging use domain-bound Cloudflare
+# Turnstile keys (openfront.io / openfront.dev) that fail on other domains (error 110200).
+GAME_ENV=dev
+
+# ============================================================
+# Cloudflare Tunnel (optional)
+# Leave all CF_* variables empty to run without a tunnel.
+# The server will then be accessible only via HOST_PORT.
+# ============================================================
+
+# Cloudflare API token with Tunnel:Edit and DNS:Edit permissions
+CF_API_TOKEN=
+
+# Cloudflare Account ID (from the Cloudflare dashboard URL)
+CF_ACCOUNT_ID=
+
+# Subdomain prefix for the tunnel (e.g. "myserver" → tunnel-myserver.example.com)
+SUBDOMAIN=
+
+# Root domain managed by Cloudflare (e.g. "example.com")
+DOMAIN=openfront.muc.datenh.eu

.gitignore

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+# Upstream-Repository – wird von setup.sh geklont
+OpenFrontIO/
+
+# Lokale Konfiguration mit Secrets
+.env

README.md

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+# OpenFrontIO — Self-Hosted Docker Setup
+
+Portables, reproduzierbares Docker-Setup für [OpenFrontIO](https://github.com/openfrontio/OpenFrontIO), einen browserbasierten Echtzeit-Strategietitel mit Territorien, Bündnissen und bis zu 41 gleichzeitigen Worker-Prozessen.
+
+---
+
+## Voraussetzungen
+
+- Docker >= 24
+- Docker Compose >= 2.20
+- Git
+- 2 GB freier RAM (empfohlen: 4 GB)
+- ~2 GB freier Speicher für das Image
+
+---
+
+## Schnellstart
+
+```bash
+# 1. Repository klonen & vorbereiten
+./setup.sh
+
+# 2. (optional) Konfiguration anpassen
+nano .env
+
+# 3. Image bauen
+docker compose build
+
+# 4. Container starten
+docker compose up -d
+```
+
+Das Spiel ist danach unter **http://localhost** erreichbar (Standard-Port 80).
+
+---
+
+## Verzeichnisstruktur
+
+```
+openfront/
+├── setup.sh                # Einmaliger Setup-Assistent
+├── docker-compose.yml      # Compose-Konfiguration
+├── startup-local.sh        # Container-Entrypoint (Cloudflare optional)
+├── supervisord-local.conf  # Supervisor-Konfiguration ohne Cloudflared
+├── .env.example            # Vorlage für Umgebungsvariablen
+├── .env                    # Deine Konfiguration (wird von setup.sh erstellt)
+└── OpenFrontIO/            # Geklontes Upstream-Repository (wird von setup.sh erstellt)
+```
+
+---
+
+## Konfiguration
+
+`setup.sh` erstellt automatisch eine `.env`-Datei aus `.env.example`. Alle verfügbaren Optionen:
+
+| Variable | Standard | Beschreibung |
+|---|---|---|
+| `HOST_PORT` | `80` | Externer Port auf dem Host |
+| `GIT_COMMIT` | automatisch | Git-Commit-Hash, der ins Image eingebettet wird |
+| `GAME_ENV` | leer | Spielumgebung: `dev`, `staging` oder `prod` (siehe unten) |
+| `CF_API_TOKEN` | leer | Cloudflare API-Token (optional, siehe unten) |
+| `CF_ACCOUNT_ID` | leer | Cloudflare Account-ID (optional) |
+| `SUBDOMAIN` | leer | Subdomain-Präfix für den Tunnel (optional) |
+| `DOMAIN` | leer | Root-Domain bei Cloudflare (optional) |
+
+### Anderen Port verwenden
+
+```bash
+# .env
+HOST_PORT=8080
+```
+
+---
+
+## Nginx Reverse Proxy mit HTTPS
+
+Um den Server öffentlich unter einer eigenen Domain zu betreiben:
+
+**1. Nginx-Config erstellen** (`/etc/nginx/conf.d/openfront.example.com`):
+
+```nginx
+map $http_upgrade $connection_upgrade {
+    default upgrade;
+    ''      close;
+}
+
+server {
+    listen 80;
+    listen [::]:80;
+    server_name openfront.example.com;
+
+    location ^~ /.well-known/acme-challenge {
+        default_type text/plain;
+        root /var/www/letsencrypt;
+    }
+
+    location / {
+        return 301 https://$host$request_uri;
+    }
+}
+
+server {
+    listen 443 ssl;
+    listen [::]:443 ssl;
+    server_name openfront.example.com;
+
+    ssl_certificate     /etc/letsencrypt/live/openfront.example.com/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/openfront.example.com/privkey.pem;
+    include             /etc/letsencrypt/options-ssl-nginx.conf;
+    ssl_dhparam         /etc/letsencrypt/ssl-dhparams.pem;
+
+    location / {
+        proxy_pass http://127.0.0.1:8989;  # HOST_PORT aus .env
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection $connection_upgrade;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_read_timeout 3600s;
+        proxy_send_timeout 3600s;
+    }
+}
+```
+
+**2. TLS-Zertifikat holen** (DNS-Challenge empfohlen, da HTTP-Challenge durch vorgelagerte Auth-Proxies blockiert werden kann):
+
+```bash
+# Mit Cloudflare DNS:
+sudo certbot certonly --dns-cloudflare \
+  --dns-cloudflare-credentials /etc/letsencrypt/cloudflare.ini \
+  -d openfront.example.com
+
+# Oder manuell:
+sudo certbot certonly --manual --preferred-challenges dns -d openfront.example.com
+```
+
+**3. `GAME_ENV` korrekt setzen** – Pflicht, damit `/api/env` antwortet und das Frontend korrekt initialisiert wird:
+
+```bash
+# .env
+GAME_ENV=dev
+```
+
+> **Wichtig:** `GAME_ENV` muss gesetzt sein, sonst gibt `/api/env` HTTP 500 zurück und Features wie der „Link kopieren"-Button funktionieren nicht.
+>
+> `GAME_ENV=prod` und `GAME_ENV=staging` verwenden hardcodierte Cloudflare-Turnstile-Keys für `openfront.io` bzw. `openfront.dev` – diese Keys sind domain-gebunden und schlagen auf anderen Domains mit Fehler **110200** fehl. `GAME_ENV=dev` verwendet Cloudflares offizielle Test-Keys, die immer durchgehen.
+
+**4. Container mit neuer Konfiguration neu erstellen:**
+
+```bash
+docker compose up -d --force-recreate
+```
+
+> `docker compose restart` reicht nicht – Änderungen an `.env` werden erst nach `up -d` (oder `--force-recreate`) übernommen.
+
+---
+
+## Cloudflare Tunnel (optional)
+
+Ohne Cloudflare-Konfiguration läuft der Server ausschließlich lokal auf `HOST_PORT`. Für einen öffentlich erreichbaren Server über Cloudflare Tunnel:
+
+1. Erstelle einen API-Token im [Cloudflare Dashboard](https://dash.cloudflare.com/profile/api-tokens) mit den Berechtigungen **Tunnel:Edit** und **DNS:Edit**.
+2. Trage die Werte in `.env` ein:
+
+```bash
+CF_API_TOKEN=dein_token
+CF_ACCOUNT_ID=deine_account_id
+SUBDOMAIN=myserver           # → tunnel-myserver.example.com
+DOMAIN=example.com
+```
+
+3. Beim nächsten Start erstellt der Container automatisch den Tunnel und den passenden DNS-CNAME-Eintrag.
+
+---
+
+## Nützliche Befehle
+
+```bash
+# Logs in Echtzeit verfolgen
+docker compose logs -f
+
+# Nur Node-Server-Logs
+docker compose logs -f openfront | grep "\[node\]"
+
+# Container-Status prüfen
+docker compose ps
+
+# Container neustarten
+docker compose restart
+
+# Stoppen
+docker compose down
+
+# Stoppen und Image entfernen
+docker compose down --rmi local
+
+# Neu bauen nach Upstream-Updates
+git -C OpenFrontIO pull
+docker compose build --no-cache
+docker compose up -d
+```
+
+---
+
+## Architektur
+
+Das Image enthält drei Prozesse, verwaltet von [Supervisor](http://supervisord.org/):
+
+```
+Container (Port 80)
+└── Nginx (Reverse Proxy + Cache)
+    ├── /               → Node.js Master (Port 3000)
+    ├── /api/*          → Node.js Master (Port 3000)
+    ├── /lobbies        → Node.js Master (Port 3000, WebSocket)
+    └── /w0 … /w40      → Node.js Worker 0–40 (Ports 3001–3041)
+```
+
+Nginx übernimmt Caching, WebSocket-Upgrades und das Routing zu den Worker-Prozessen. Alle internen Ports (3000–3041) sind **nicht** nach außen exponiert.
+
+---
+
+## Troubleshooting
+
+### Build schlägt wegen `proprietary`-Verzeichnis fehl
+
+Das `proprietary`-Submodul ist ein privates Repository der Entwickler. `setup.sh` erstellt automatisch einen leeren Placeholder, falls es nicht erreichbar ist. Der Build und das Spiel funktionieren auch ohne dieses Verzeichnis.
+
+```bash
+mkdir -p OpenFrontIO/proprietary
+docker compose build
+```
+
+### Port 80 bereits belegt
+
+```bash
+# .env anpassen:
+HOST_PORT=8080
+docker compose up -d
+```
+
+### Container startet, Spiel ist nicht erreichbar
+
+```bash
+# Healthcheck-Status prüfen
+docker inspect openfront-openfront-1 | grep -A5 Health
+
+# Direkt im Container nachsehen
+docker compose exec openfront supervisorctl status
+```
+
+### Upstream-Updates einspielen
+
+```bash
+git -C OpenFrontIO pull
+docker compose build
+docker compose up -d
+```
+
+---
+
+## Lizenz
+
+Der Quellcode von OpenFrontIO steht unter der [AGPL-3.0](https://github.com/openfrontio/OpenFrontIO/blob/main/LICENSE). Assets stehen unter [CC BY-SA 4.0](https://github.com/openfrontio/OpenFrontIO/blob/main/LICENSE-ASSETS). Copyright-Hinweise müssen in der Oberfläche sichtbar bleiben.
+
+Dieses Docker-Setup ist ein inoffizielles Convenience-Wrapper ohne eigene Lizenzansprüche.

docker-compose.yml

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+services:
+  openfront:
+    build:
+      context: ./OpenFrontIO
+      dockerfile: Dockerfile
+      args:
+        GIT_COMMIT: ${GIT_COMMIT:-unknown}
+    entrypoint: ["/usr/local/bin/startup-local.sh"]
+    ports:
+      - "${HOST_PORT:-80}:80"
+    env_file:
+      - .env
+    volumes:
+      # Override startup and supervisor config with our local versions
+      - ./startup-local.sh:/usr/local/bin/startup-local.sh:ro
+      - ./supervisord-local.conf:/etc/supervisor/conf.d/supervisord-local.conf:ro
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "curl", "-sf", "http://localhost/api/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 90s

setup.sh

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+#!/bin/bash
+set -e
+
+REPO_URL="https://github.com/openfrontio/OpenFrontIO.git"
+REPO_DIR="./OpenFrontIO"
+
+echo "=== OpenFrontIO Docker Setup ==="
+
+# Clone repo if not already present
+if [ ! -d "$REPO_DIR/.git" ]; then
+    echo "[1/4] Cloning OpenFrontIO repository..."
+    git clone "$REPO_URL" "$REPO_DIR"
+else
+    echo "[1/4] Repository already cloned. Pulling latest changes..."
+    git -C "$REPO_DIR" pull
+fi
+
+# Initialize git submodules (proprietary assets etc.)
+echo "[2/4] Initializing submodules..."
+git -C "$REPO_DIR" submodule update --init --recursive 2>/dev/null || true
+
+# The 'proprietary' directory may be a private submodule.
+# If it doesn't exist after submodule init, create an empty one so Docker COPY doesn't fail.
+if [ ! -d "$REPO_DIR/proprietary" ]; then
+    echo "      Note: 'proprietary' submodule not available (private). Creating empty placeholder."
+    mkdir -p "$REPO_DIR/proprietary"
+fi
+
+# Set up .env from example if it doesn't exist yet
+echo "[3/4] Setting up .env..."
+if [ ! -f ".env" ]; then
+    cp .env.example .env
+    echo "      .env created from .env.example — edit it before starting!"
+else
+    echo "      .env already exists, skipping."
+fi
+
+# Capture git commit hash for reproducible builds
+GIT_COMMIT=$(git -C "$REPO_DIR" rev-parse --short HEAD 2>/dev/null || echo "unknown")
+# Update GIT_COMMIT in .env if placeholder
+if grep -q "^GIT_COMMIT=unknown" .env 2>/dev/null; then
+    sed -i "s/^GIT_COMMIT=unknown/GIT_COMMIT=${GIT_COMMIT}/" .env
+fi
+
+echo "[4/4] Setup complete!"
+echo ""
+echo "Next steps:"
+echo "  1. Edit .env (at minimum set HOST_PORT if port 80 is taken)"
+echo "  2. docker compose build"
+echo "  3. docker compose up -d"
+echo "  4. Open http://localhost (or your HOST_PORT)"
+echo ""
+echo "  Optional: Set CF_API_TOKEN, CF_ACCOUNT_ID, SUBDOMAIN, DOMAIN in .env"
+echo "  for automatic Cloudflare Tunnel setup."

startup-local.sh

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+#!/bin/bash
+set -e
+
+SUPERVISORD_CMD="/usr/bin/supervisord"
+SUPERVISORD_CONF_FULL="/etc/supervisor/conf.d/supervisord.conf"
+SUPERVISORD_CONF_LOCAL="/etc/supervisor/conf.d/supervisord-local.conf"
+
+# Check if all required Cloudflare variables are set
+if [ -n "$CF_API_TOKEN" ] && [ -n "$CF_ACCOUNT_ID" ] && [ -n "$SUBDOMAIN" ] && [ -n "$DOMAIN" ]; then
+    echo "Cloudflare variables detected — setting up tunnel..."
+
+    TIMESTAMP=$(date +%Y%m%d%H%M%S)
+    TUNNEL_NAME="${SUBDOMAIN}-tunnel-${TIMESTAMP}"
+    echo "Tunnel name: ${TUNNEL_NAME}"
+
+    TUNNEL_RESPONSE=$(curl -s -X POST "https://api.cloudflare.com/client/v4/accounts/${CF_ACCOUNT_ID}/cfd_tunnel" \
+        -H "Authorization: Bearer ${CF_API_TOKEN}" \
+        -H "Content-Type: application/json" \
+        --data "{\"name\":\"${TUNNEL_NAME}\"}")
+
+    TUNNEL_ID=$(echo "$TUNNEL_RESPONSE" | jq -r '.result.id')
+    TUNNEL_TOKEN=$(echo "$TUNNEL_RESPONSE" | jq -r '.result.token')
+
+    if [ -z "$TUNNEL_ID" ] || [ "$TUNNEL_ID" = "null" ]; then
+        echo "Error: Failed to create Cloudflare tunnel"
+        echo "$TUNNEL_RESPONSE"
+        exit 1
+    fi
+
+    echo "Tunnel ID: ${TUNNEL_ID}"
+
+    curl -s -X PUT "https://api.cloudflare.com/client/v4/accounts/${CF_ACCOUNT_ID}/cfd_tunnel/${TUNNEL_ID}/configurations" \
+        -H "Authorization: Bearer ${CF_API_TOKEN}" \
+        -H "Content-Type: application/json" \
+        --data "{\"config\":{\"ingress\":[{\"hostname\":\"tunnel-${SUBDOMAIN}.${DOMAIN}\",\"service\":\"http://localhost:80\"},{\"service\":\"http_status:404\"}]}}"
+
+    DNS_RECORDS=$(curl -s "https://api.cloudflare.com/client/v4/zones?name=${DOMAIN}" \
+        -H "Authorization: Bearer ${CF_API_TOKEN}" \
+        -H "Content-Type: application/json")
+    ZONE_ID=$(echo "$DNS_RECORDS" | jq -r '.result[0].id')
+
+    if [ -z "$ZONE_ID" ] || [ "$ZONE_ID" = "null" ]; then
+        echo "Error: Could not find DNS zone for ${DOMAIN}"
+        exit 1
+    fi
+
+    EXISTING=$(curl -s "https://api.cloudflare.com/client/v4/zones/${ZONE_ID}/dns_records?name=tunnel-${SUBDOMAIN}.${DOMAIN}" \
+        -H "Authorization: Bearer ${CF_API_TOKEN}" \
+        -H "Content-Type: application/json")
+    RECORD_ID=$(echo "$EXISTING" | jq -r '.result[0].id')
+
+    if [ -z "$RECORD_ID" ] || [ "$RECORD_ID" = "null" ]; then
+        curl -s -X POST "https://api.cloudflare.com/client/v4/zones/${ZONE_ID}/dns_records" \
+            -H "Authorization: Bearer ${CF_API_TOKEN}" \
+            -H "Content-Type: application/json" \
+            --data "{\"type\":\"CNAME\",\"name\":\"tunnel-${SUBDOMAIN}.${DOMAIN}\",\"content\":\"${TUNNEL_ID}.cfargotunnel.com\",\"ttl\":1,\"proxied\":true}"
+    else
+        curl -s -X PUT "https://api.cloudflare.com/client/v4/zones/${ZONE_ID}/dns_records/${RECORD_ID}" \
+            -H "Authorization: Bearer ${CF_API_TOKEN}" \
+            -H "Content-Type: application/json" \
+            --data "{\"type\":\"CNAME\",\"name\":\"tunnel-${SUBDOMAIN}.${DOMAIN}\",\"content\":\"${TUNNEL_ID}.cfargotunnel.com\",\"ttl\":1,\"proxied\":true}"
+    fi
+
+    echo "Site will be available at: https://tunnel-${SUBDOMAIN}.${DOMAIN}"
+    export CLOUDFLARE_TUNNEL_TOKEN="${TUNNEL_TOKEN}"
+
+    # Use the full supervisor config (includes cloudflared)
+    exec "$SUPERVISORD_CMD" -c "$SUPERVISORD_CONF_FULL"
+else
+    echo "No Cloudflare variables set — starting without tunnel (port 80 only)."
+    # Use local supervisor config (nginx + node only, no cloudflared)
+    exec "$SUPERVISORD_CMD" -c "$SUPERVISORD_CONF_LOCAL"
+fi

supervisord-local.conf

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+[supervisord]
+nodaemon=true
+user=root
+logfile=/var/log/supervisor/supervisord.log
+pidfile=/var/run/supervisord.pid
+
+[program:nginx]
+command=/usr/sbin/nginx -g "daemon off;"
+autostart=true
+autorestart=true
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+
+[program:node]
+command=npm run start:server
+directory=/usr/src/app
+autostart=true
+autorestart=true
+user=node
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0