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FROM alpine:3.23.3
# Install OpenSSH server and Gitolite
# Unlock the automatically-created git user
RUN set -x \
&& apk add --no-cache openrc fail2ban gitolite openssh
RUN apk update && apk update
RUN rc-update add fail2ban
RUN git config --system advice.defaultBranchName false
# Volume used to store SSH host keys, generated on first run
VOLUME /etc/ssh/keys
# Volume used to store all Gitolite data (keys, config and repositories), initialized on first run
VOLUME /var/lib/git
# Permissions are fixed in docker-entrypoint.sh
RUN mkdir -p /var/lib/git/local/hooks/common
COPY post-receive /var/lib/git/local/hooks/common/
RUN chmod +x /var/lib/git/local/hooks/common/post-receive
# Entrypoint responsible for SSH host keys generation, and Gitolite data initialization
COPY docker-entrypoint.sh /
RUN chmod +x /docker-entrypoint.sh
ENTRYPOINT ["/docker-entrypoint.sh"]
# Expose port 22 to access SSH
EXPOSE 22
# Default command is to run the SSH server
CMD ["sshd"]
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