Dockerfile.backend

FROM python:3.11-slim AS builder

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    UV_LINK_MODE=copy \
    UV_PROJECT_ENVIRONMENT=/opt/venv

RUN apt-get update && apt-get install -y --no-install-recommends \
        build-essential \
        curl \
    && rm -rf /var/lib/apt/lists/*

COPY --from=ghcr.io/astral-sh/uv:0.5.11 /uv /usr/local/bin/uv

WORKDIR /app

COPY pyproject.toml uv.lock ./
COPY src ./src

RUN uv sync --frozen --no-dev


FROM python:3.11-slim AS runtime

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PATH="/opt/venv/bin:$PATH" \
    SADAR_PROCESSED_DIR=/app/data/processed \
    SADAR_MODELS_DIR=/app/models \
    SADAR_REPORTS_DIR=/app/reports \
    SADAR_SERVE_CONFIG=/app/configs/serve.yaml

RUN apt-get update && apt-get install -y --no-install-recommends \
        libgomp1 \
        curl \
    && rm -rf /var/lib/apt/lists/* \
    && groupadd --system --gid 1000 sadar \
    && useradd  --system --uid 1000 --gid sadar --create-home sadar

WORKDIR /app

COPY --from=builder /opt/venv /opt/venv
COPY --from=builder /app/src /app/src

COPY configs ./configs
COPY pyproject.toml ./

RUN mkdir -p /app/data/processed /app/models /app/reports \
    && chown -R sadar:sadar /app

USER sadar

EXPOSE 8000

HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 \
    CMD curl -fsS http://localhost:8000/api/health || exit 1

CMD ["uvicorn", "sadar.serve.app:app", "--host", "0.0.0.0", "--port", "8000"]