Dockerfile

# Multi-stage Dockerfile for LLMployable

# Stage 1: Frontend Builder
FROM node:20-slim as frontend-builder
WORKDIR /frontend
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ ./
# Set API URL to empty string so it uses relative paths in production
ENV VITE_API_URL=""
RUN npm run build

# Stage 2: Python Builder
FROM python:3.11-slim as python-builder
WORKDIR /build
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    python3-dev \
    && rm -rf /var/lib/apt/lists/*
COPY requirements.txt .
RUN pip install --user --no-cache-dir -r requirements.txt

# Stage 3: Runtime
FROM python:3.11-slim
WORKDIR /app

# Install runtime dependencies (LaTeX, etc.)
RUN apt-get update && apt-get install -y --no-install-recommends \
    texlive-latex-base \
    texlive-latex-extra \
    texlive-fonts-recommended \
    ca-certificates \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy Python packages from builder
COPY --from=python-builder /root/.local /root/.local
ENV PATH=/root/.local/bin:$PATH \
    PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1

# Copy frontend build to a directory Flask can serve
RUN mkdir -p static
COPY --from=frontend-builder /frontend/dist ./static

# Copy application code
COPY . .

# Create required directories
RUN mkdir -p logs uploads temp && \
    chmod -R 755 logs uploads temp

# Expose port (Render will use this)
EXPOSE 5000

# Default environment
ENV ENVIRONMENT=production \
    HOST=0.0.0.0 \
    PORT=5000 \
    STATIC_FOLDER=static

# Run with gunicorn
CMD ["sh", "-c", "gunicorn --bind 0.0.0.0:${PORT:-5000} --workers 2 --threads 4 --worker-class gthread --timeout 300 --access-logfile - --error-logfile - --log-level info 'app_production:create_app()'"]