FROM docker.io/library/debian:trixie-slim

RUN apt-get update \
    && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
        systemd \
        systemd-sysv \
        openssh-client \
        openssh-server \
        iproute2 \
        iptables \
        socat \
        curl \
        ca-certificates \
    && systemctl enable ssh \
    && printf '#!/bin/sh\nmkdir -p /run/sshd\nexec "$@"\n' > /usr/local/sbin/floci-init \
    && chmod +x /usr/local/sbin/floci-init \
    && rm -rf /var/lib/apt/lists/*

ENV container=docker
STOPSIGNAL SIGRTMIN+3
ENTRYPOINT ["/usr/local/sbin/floci-init"]
CMD ["/sbin/init"]