chore: production docker + compose for LAN deployment

docker-compose.yml

@@ -0,0 +1,58 @@
+services:
+  # Default service: works on Docker Desktop (Windows/macOS) and Linux.
+  # Exposes HTTP and a *range* of UDP ports for triggers.
+  # Keep your Event UDP ports within this published range.
+  syncplayer:
+    build: .
+
+    ports:
+      - "5000:5000/tcp"
+      # UDP trigger ports (edit range if needed)
+      - "7000-7999:7000-7999/udp"
+
+    environment:
+      # Persistent data root inside container (mounted below)
+      DATA_DIR: /data
+      MEDIA_DIR: /data/media
+      LOG_DIR: /data/logs
+
+      # Flask-SocketIO async backend for Linux containers
+      ASYNC_MODE: eventlet
+
+      # App bind settings (when using host networking, PORT must match gunicorn bind)
+      HOST: 0.0.0.0
+      PORT: 5000
+
+      # Change this in production
+      SECRET_KEY: change-me
+
+      # Keep CORS permissive for LAN kiosk browsers
+      CORS_ORIGINS: "*"
+
+    volumes:
+      - ./data:/data
+
+    restart: unless-stopped
+
+  # Optional: host-networked service for Linux hosts.
+  # Use: docker compose --profile hostnet up -d --build
+  # This avoids needing to pre-declare UDP ports (dynamic ports just work).
+  syncplayer-host:
+    profiles: ["hostnet"]
+    build: .
+    network_mode: host
+
+    environment:
+      DATA_DIR: /data
+      MEDIA_DIR: /data/media
+      LOG_DIR: /data/logs
+      ASYNC_MODE: eventlet
+      HOST: 0.0.0.0
+      PORT: 5000
+      SECRET_KEY: change-me
+      CORS_ORIGINS: "*"
+
+    volumes:
+      - ./data:/data
+
+    restart: unless-stopped