Dockerfile

# From example at: https://github.com/astral-sh/uv-docker-example/blob/main/multistage.Dockerfile

# Build app dependencies
FROM python:3.12.8-slim-bookworm@sha256:2199a62885a12290dc9c5be3ca0681d367576ab7bf037da120e564723292a2f0 AS builder
WORKDIR /app

RUN apt-get update \
    && apt-get install -y --no-install-recommends \
    # Needed by hatch-vcs
    git \
    # Needed by psycopg2
    build-essential libpq-dev \
    && rm -rf /var/lib/apt/lists/*

ENV UV_COMPILE_BYTECODE=1 UV_LINK_MODE=copy
COPY --from=ghcr.io/astral-sh/uv:0.11.8@sha256:3b7b60a81d3c57ef471703e5c83fd4aaa33abcd403596fb22ab07db85ae91347 /uv /bin/

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 \
    --mount=type=bind,source=.python-version,target=.python-version \
    SETUPTOOLS_SCM_PRETEND_VERSION_FOR_CARPOOLERBOT=0 \
    uv sync --locked --no-dev --no-install-project --no-editable

# Build app
COPY . .
RUN --mount=type=cache,target=/root/.cache/uv \
    --mount=type=bind,source=.git,target=.git \
    # NOTE: reinstall-package is needed to calculate the correct version
    uv sync --locked --no-dev --no-editable --reinstall-package=carpoolerbot


# Copy app to runtime stage
FROM python:3.12.8-slim-bookworm@sha256:2199a62885a12290dc9c5be3ca0681d367576ab7bf037da120e564723292a2f0
WORKDIR /app

RUN apt-get update \
    && apt-get install -y --no-install-recommends \
    dumb-init=1.2.5-2 \
    # Needed by psycopg2
    libpq-dev \
    && rm -rf /var/lib/apt/lists/*

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

# Needed by Alembic
COPY --from=builder /app/pyproject.toml /app/alembic.ini /app/
COPY --from=builder /app/migrations /app/migrations

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

ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/bin/sh", "-c", "alembic upgrade head && carpoolerbot"]