# Provider-neutral production image for the backend (API and Celery worker
# share one image; the worker is started with a command override).
#
# Build contract (owned with the backend team, see infra/README.md):
#   - build context is backend/
#   - backend/ contains pyproject.toml, uv.lock and the application package app/
#   - API entrypoint: uvicorn app.main:app; health endpoint: GET /healthz
#   - Celery app import path: app.worker.celery
#
# Build:
#   docker build -f infra/docker/Dockerfile.backend -t finance-api:local backend

FROM python:3.14-slim-bookworm AS runtime

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

# Pin the uv digest before first production build; keep in sync with CI.
COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv

WORKDIR /app

# Dependencies first for layer caching. Requires uv.lock to be up to date.
COPY pyproject.toml uv.lock ./
RUN uv sync --frozen --no-dev --no-install-project

# Application code.
COPY app ./app
COPY alembic ./alembic
COPY alembic.ini ./alembic.ini
RUN uv sync --frozen --no-dev

RUN useradd --uid 10001 --create-home --shell /usr/sbin/nologin appuser \
    && chown -R appuser:appuser /app

USER appuser

ENV PATH="/opt/venv/bin:${PATH}"

EXPOSE 8000

# API role default. Database migrations run as a one-shot release step
# (see docs/operations/beta-release-runbook.md), not on container start.
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--proxy-headers", "--forwarded-allow-ips", "*"]