Dockerfile.web

# eCan.ai Web Server Dockerfile
# 
# This Dockerfile builds a headless web server image without Qt dependencies.
# It's optimized for multi-user web deployment.
#
# Build:
#   docker build -f Dockerfile.web -t ecan-web .
#
# Run:
#   docker run -p 8765:8765 -e ECAN_WS_PORT=8765 ecan-web
#
# With environment file:
#   docker run -p 8765:8765 --env-file .env.web ecan-web

FROM python:3.12-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    ECAN_MODE=web \
    ECAN_WS_HOST=0.0.0.0 \
    ECAN_WS_PORT=8765

# Set working directory
WORKDIR /app

# Install system dependencies (minimal for headless)
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    libffi-dev \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user for security
RUN useradd --create-home --shell /bin/bash ecan
RUN chown -R ecan:ecan /app

# Copy requirements first for better caching
COPY requirements-base.txt ./

# Install Python dependencies (excluding Qt)
# Filter out PySide6 and other desktop-only dependencies
RUN pip install --no-cache-dir --upgrade pip && \
    grep -v -E "^(PySide6|PyQt|qtpy)" requirements-base.txt > requirements-web.txt && \
    pip install --no-cache-dir -r requirements-web.txt && \
    pip install --no-cache-dir fastapi uvicorn websockets

# Copy application code
COPY --chown=ecan:ecan . .

# Switch to non-root user
USER ecan

# Expose WebSocket port
EXPOSE 8765

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8765/health')" || exit 1

# Default command
CMD ["python", "-m", "uvicorn", "web_server:app", "--host", "0.0.0.0", "--port", "8765"]