base.Dockerfile

FROM ubuntu:bionic AS main
RUN /bin/bash -c '\
    export DEBIAN_FRONTEND=noninteractive && \
    export DEBIAN_PRIORITY=critical && \
    mkdir -p /var/run/sshd /var/log/sshd /root/.ssh /etc/ssh/sshd_config.d && \
    rm -f /etc/update-motd.d/60-unminimize && \
    apt update && \
    apt install -y -o "Dpkg::Options::=--force-confold" --no-install-recommends curl wget ca-certificates nano openssh-server openssh-client git libpam-systemd- && \
    apt autoremove -y --purge && \
    apt clean && \
    rm -rf /var/lib/apt /root/.launchpadlib && \
    wget https://raw.githubusercontent.com/tj/n/master/bin/n -O /tmp/n && \
    bash /tmp/n 16 && \
    rm /tmp/n && \
    echo "export N_PRESERVE_NPM=1" | tee -a /root/.bashrc && \
    /usr/local/bin/npm install npm@9 n --location=global && \
    rm -rf /root/.npm && \
    mkdir -p /root/.npm && \
    echo "done."'
CMD eval `ssh-agent -s` && /usr/bin/ssh-add && /usr/sbin/sshd -D -e -E /var/log/sshd/sshd.log