Containerfile

FROM docker.io/library/debian:12

# Avoid stdout text buffering for Python applications
ENV PYTHONUNBUFFERED=true

RUN apt update && apt install -y --no-install-recommends \
    bzip2 \
    curl \
    procps \
    python3 \
    python3-pip

# Install restic
# https://github.com/restic/restic/releases
ARG RESTIC_VERSION=0.16.1
RUN curl -sSLO https://github.com/restic/restic/releases/download/v${RESTIC_VERSION}/restic_${RESTIC_VERSION}_linux_amd64.bz2 && \
    curl -sSLO https://github.com/restic/restic/releases/download/v${RESTIC_VERSION}/SHA256SUMS && \
    sha256sum --check --ignore-missing SHA256SUMS && \
    bunzip2 restic_*.bz2 && \
    mv restic_* /usr/local/bin/restic && \
    chmod +x /usr/local/bin/restic

WORKDIR /app
# Install dependencies
COPY pyproject.toml .
RUN pip3 install --break-system-packages .

# Add source code
COPY restic_k8s.py .

# Make CLI command available
RUN ln -s /app/restic_k8s.py /usr/local/bin/restic-k8s

CMD ["restic-k8s", "backup"]