FROM debian:bullseye-slim
RUN apt update && \
    env DEBIAN_FRONTEND=noninteractive apt -y install bird2 && \
    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* && \
    mkdir /run/bird

ENTRYPOINT [ "/usr/sbin/bird" ]
CMD [ "-d", "-u", "root", "-g", "root", "-c", "/etc/bird/bird.conf" ]
