Dockerfile

FROM ubuntu:22.04

# Avoid tzdata interactive prompts
ENV DEBIAN_FRONTEND=noninteractive

# Install system dependencies and Python 3.12
RUN apt-get update && apt-get install -y software-properties-common \
    && add-apt-repository ppa:deadsnakes/ppa \
    && apt-get update && apt-get install -y \
    python3.12 \
    python3.12-venv \
    python3.12-dev \
    python3-pip \
    curl \
    wget \
    git \
    redis-server \
    openjdk-17-jdk \
    libmagic1 \
    && rm -rf /var/lib/apt/lists/*

# Install Node.js for frontend build
RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \
    && apt-get install -y nodejs

# Create app directory
WORKDIR /app

# Download and extract Neo4j and GDS plugin
RUN wget -q https://neo4j.com/artifact.php?name=neo4j-community-5.18.0-unix.tar.gz -O neo4j.tar.gz \
    && tar -xf neo4j.tar.gz \
    && mv neo4j-community-5.18.0 neo4j \
    && rm neo4j.tar.gz \
    && wget -q https://github.com/neo4j/graph-data-science/releases/download/2.6.4/neo4j-graph-data-science-2.6.4.jar -O neo4j/plugins/neo4j-graph-data-science.jar

# Configure Neo4j for demo mode (disable auth, limit memory, enable GDS)
RUN echo "dbms.security.auth_enabled=false" >> neo4j/conf/neo4j.conf \
    && echo "server.memory.heap.initial_size=512m" >> neo4j/conf/neo4j.conf \
    && echo "server.memory.heap.max_size=1G" >> neo4j/conf/neo4j.conf \
    && echo "server.memory.pagecache.size=1G" >> neo4j/conf/neo4j.conf \
    && echo "dbms.security.procedures.unrestricted=gds.*" >> neo4j/conf/neo4j.conf

# Copy project files
COPY . .

# Build frontend
WORKDIR /app/frontend-react
RUN npm install
RUN npm run build

# Setup Python backend
WORKDIR /app
RUN python3.12 -m venv .venv
ENV PATH="/app/.venv/bin:$PATH"
RUN pip install --upgrade pip
RUN pip install -e .

# Create start script
RUN echo '#!/bin/bash\n\
\n\
# Start Redis\n\
redis-server --daemonize yes\n\
\n\
# Start Neo4j in background\n\
/app/neo4j/bin/neo4j start\n\
\n\
# Wait for Neo4j to be ready\n\
echo "Waiting for Neo4j to start..."\n\
while ! curl -s http://localhost:7474 > /dev/null; do\n\
    sleep 2\n\
done\n\
echo "Neo4j HTTP is up! Waiting for Bolt (7687)..."\n\
while ! (echo > /dev/tcp/localhost/7687) >/dev/null 2>&1; do\n\
    sleep 2\n\
done\n\
echo "Neo4j is up!"\n\
\n\
# Set environment variables for Demo Mode\n\
export NEO4J_URI=bolt://localhost:7687\n\
export NEO4J_USER=neo4j\n\
export NEO4J_PASSWORD=dummy\n\
export REDIS_HOST=localhost\n\
export REDIS_PORT=6379\n\
export REDIS_DB=0\n\
export DEMO_MODE=true\n\
export ENVIRONMENT=production\n\
export SECRET_KEY=demo-secret-key-1234567890\n\
\n\
if [ -z "$GOOGLE_API_KEY" ]; then\n\
    export DEFAULT_LLM_PROVIDER=mock\n\
    export EMBEDDING_PROVIDER=mock\n\
    export DEMO_MODE=true\n\
    echo "[WARNING] GOOGLE_API_KEY is not set. Running in DEMO_MODE with mock LLM provider."\n\
else\n\
    export DEFAULT_LLM_PROVIDER=gemini\n\
    export EMBEDDING_PROVIDER=gemini\n\
fi\n\
\n\
# Create default admin user in Neo4j\n\
python -c "\n\
import asyncio\n\
from src.graph_rag_service.core.neo4j_store import Neo4jStore\n\
from src.graph_rag_service.api.auth import get_password_hash\n\
\n\
async def main():\n\
    store = Neo4jStore()\n\
    await store.connect()\n\
    try:\n\
        await store.create_user({\n\
            '\''username'\'': '\''admin'\'',\n\
            '\''hashed_password'\'': get_password_hash('\''admin'\''),\n\
            '\''email'\'': '\''admin@example.com'\'',\n\
            '\''full_name'\'': '\''Demo Admin'\'',\n\
            '\''disabled'\'': False,\n\
            '\''scopes'\'': ['\''read'\'', '\''write'\'', '\''admin'\''],\n\
            '\''tenant_id'\'': '\''demo_tenant'\'',\n\
        })\n\
        print('\''Admin user created in Neo4j'\'')\n\
        \n\
        # Check GDS\n\
        gds_res = await store.execute_query('\''RETURN gds.version() as version'\'')\n\
        print('\''GDS Plugin Version:'\'', gds_res[0]["version"] if gds_res else '\''NOT FOUND'\'')\n\
    except Exception as e:\n\
        print(f'\''Admin user creation note: {e}'\'')\n\
        raise e\n\
    await store.disconnect()\n\
\n\
asyncio.run(main())\n\
"\n\
if [ $? -ne 0 ]; then\n\
    echo "Admin seed failed, retrying in 5 seconds..."\n\
    sleep 5\n\
    python -c "\n\
import asyncio\n\
from src.graph_rag_service.core.neo4j_store import Neo4jStore\n\
from src.graph_rag_service.api.auth import get_password_hash\n\
\n\
async def main():\n\
    store = Neo4jStore()\n\
    await store.connect()\n\
    try:\n\
        await store.create_user({'username': 'admin', 'hashed_password': get_password_hash('admin'), 'scopes': ['read', 'write', 'admin'], 'tenant_id': 'demo_tenant'})\n\
    except Exception as e: pass\n\
    await store.disconnect()\n\
asyncio.run(main())\n\
    "\n\
fi\n\
\n\
# Start Celery worker in the background\n\
celery -A src.graph_rag_service.workers.celery_worker worker --loglevel=info --concurrency=1 --pool=threads &\n\
\n\
# Start FastAPI and serve static files (frontend)\n\
uvicorn src.graph_rag_service.api.server:app --host 0.0.0.0 --port 7860\n\
' > start.sh && chmod +x start.sh

# HF Spaces requires serving on 7860
EXPOSE 7860

CMD ["./start.sh"]