strimzi-registry-operator/Dockerfile at main · draygoX/strimzi-registry-operator · GitHub

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# This Dockerfile has three stages:
#
# base-image
#   Updates the base Python image with security patches and common system
#   packages. This image becomes the base of all other images.
# install-image
#   Installs third-party dependencies and the
#   application into a virtual environment. This virtual environment is ideal
#   for copying across build stages.
# runtime-image
#   - Copies the virtual environment into place.
#   - Runs a non-root user.
#   - Sets up the entrypoint and port.

FROM python:3.13.7-slim-bookworm AS base-image

# Update system packages.
COPY scripts/install-base-packages.sh .
RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
    --mount=type=cache,target=/var/lib/apt,sharing=locked \
    ./install-base-packages.sh && rm ./install-base-packages.sh

FROM base-image AS install-image

# Install uv.
COPY --from=ghcr.io/astral-sh/uv:0.7.13 /uv /bin/uv

# Install system packages only needed for building dependencies.
COPY scripts/install-dependency-packages.sh .
RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
    --mount=type=cache,target=/var/lib/apt,sharing=locked \
    ./install-dependency-packages.sh

# Disable hard links during uv package installation since we're using a
# cache on a separate file system.
ENV UV_LINK_MODE=copy

# Install the dependencies.
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 --frozen --no-default-groups --compile-bytecode --no-install-project

# Install the application itself.
ADD . /app
RUN --mount=type=cache,target=/root/.cache/uv \
    uv pip install --no-deps --compile-bytecode .

FROM base-image AS runtime-image

# Create a non-root user.
RUN useradd --create-home appuser

# Copy the virtualenv.
COPY --from=install-image /app /app

# Switch to the non-root user.
USER appuser

# Make sure we use the virtualenv
WORKDIR /app
ENV PATH="/app/.venv/bin:$PATH"

# Run the Kopf-based operator.
# Accept the SSR_NAMESPACE env var for a namespace to watch,
# defaulting to 'events' for compatibility with Roundtable.
CMD ["sh", "-c", "kopf run --standalone -m strimziregistryoperator.handlers --namespace ${SSR_NAMESPACE:-events} --verbose"]