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.

setup.sh

@@ -0,0 +1,54 @@
+#!/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."