# https://gitolite.com/gitolite/index.html
# https://github.com/sitaramc/gitolite
# https://wiki.archlinux.org/title/Gitolite

FROM archlinux

# Set this to the administrator's SSH public key file (username.pub)
ARG pubkey

# The gitolite package implies git, openssh, and creates the host user
RUN pacman-key --init
RUN pacman -Syu --needed --noconfirm gitolite

# Initialize the gitolite datastore
COPY $pubkey /
RUN runuser -u gitolite -- gitolite setup -pk /$pubkey
RUN runuser -u gitolite -- chmod 755 /var/lib/gitolite
RUN runuser -u gitolite -- chmod -R 755 /var/lib/gitolite/repositories
RUN runuser -u gitolite -- ln -sf .gitolite/conf/.gitolite.rc /var/lib/gitolite
RUN runuser -u gitolite -- ln -sf .gitolite/conf/.gitconfig /var/lib/gitolite
VOLUME /var/lib/gitolite

# sshd host keys are stored in a volume so that rebuilding/updating the
# image doesn't break user trust
RUN ssh-keygen -A
VOLUME /etc/ssh

EXPOSE 22
CMD ["/usr/bin/sshd", "-D"]