Dockerfile

FROM python:3.11-slim-bookworm as builder

ENV POETRY_NO_INTERACTION=1 \
    POETRY_VIRTUALENVS_CREATE=true \
    POETRY_VIRTUALENVS_IN_PROJECT=true \
    POETRY_CACHE_DIR=/var/cache/pypoetry \
    POETRY_VERSION=2.2.1

RUN pip install poetry==$POETRY_VERSION

WORKDIR /app
COPY pyproject.toml poetry.lock /app/

RUN --mount=type=cache,target=/var/cache/pypoetry \
    poetry install --no-ansi --only=main --compile

# Runtime stage
FROM python:3.11-slim-bookworm

RUN apt-get update && \
    apt-get install -y espeak-ng ffmpeg && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

RUN useradd -u 8877 -m containeruser && \
    mkdir -p /home/containeruser/.config/pulse && \
    chown -R containeruser:containeruser /home/containeruser

ENV PYTHONFAULTHANDLER=1 \
    PYTHONUNBUFFERED=1 \
    PYTHONHASHSEED=random \
    PATH="/app/.venv/bin:$PATH"

COPY --from=builder /app/.venv /app/.venv
COPY app /app

RUN chown -R containeruser:containeruser /app
RUN mkdir -p /model_cache/piper && chown -R containeruser:containeruser /model_cache

USER containeruser

VOLUME ["/model_cache"]

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8004"]