Dockerfile

## An example of using standalone Python builds with multistage images.

# First, build the application in the `/app` directory
FROM ghcr.io/astral-sh/uv:trixie-slim AS builder
ENV UV_COMPILE_BYTECODE=1 UV_LINK_MODE=copy

# Configure the Python directory so it is consistent
ENV UV_PYTHON_INSTALL_DIR=/python

# Only use the managed Python version
ENV UV_PYTHON_PREFERENCE=only-managed

# Install Python before the project for caching
RUN uv python install 3.13

WORKDIR /app

RUN --mount=type=cache,target=/root/.cache/uv \
  --mount=type=bind,source=uv.lock,target=uv.lock \
  --mount=type=bind,source=pyproject.toml,target=pyproject.toml \
  uv sync --locked --no-install-project --no-dev

COPY . /app

RUN --mount=type=cache,target=/root/.cache/uv \
  uv sync --locked --no-dev

# Then, use a final image without uv
FROM debian:trixie-slim

# Copy the Python version
COPY --from=builder /python /python

# Copy the application from the builder
COPY --from=builder /app /app

# Place executables in the environment at the front of the path
ENV PATH="/app/.venv/bin:$PATH"

EXPOSE 8000

# Run the FastAPI application by default
# Uses `fastapi dev` to enable hot-reloading when the `watch` sync occurs
# Uses `--host 0.0.0.0` to allow access from outside the container
CMD ["python", "app/src/ascifight/main.py"]