Dockerfile

FROM python:3.11-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    gcc \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements
COPY pyproject.toml ./

# Install Python dependencies
RUN pip install --no-cache-dir \
    flask>=3.1.1 \
    flask-sqlalchemy>=3.1.1 \
    gunicorn>=23.0.0 \
    midiutil>=1.2.1 \
    nltk>=3.9.1 \
    spacy>=3.8.7 \
    sqlalchemy>=2.0.41 \
    textblob>=0.19.0 \
    werkzeug>=3.1.3 \
    email-validator>=2.2.0 \
    psycopg2-binary>=2.9.10

# Download spacy model and NLTK data
RUN python -m spacy download en_core_web_sm && \
    python -m textblob.download_corpora && \
    python -c "import nltk; nltk.download('punkt'); nltk.download('cmudict')"

# Copy application code
COPY . .

# Create directories for MIDI files and database
RUN mkdir -p static/midi instance

# Expose port
EXPOSE 5000

# Run gunicorn
CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "4", "--timeout", "120", "app:app"]