Hi, I forked the repo in order to use my own haproxy.cfg and got an issue during the build.
...
...
Processing triggers for systemd (215-17+deb8u6) ...
Processing triggers for libc-bin (2.19-18+deb8u7) ...
Processing triggers for ca-certificates (20141019+deb8u2) ...
Updating certificates in /etc/ssl/certs... 174 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d....done.
+ apt-get install --no-install-recommends -yqq certbot -t jessie-backports
E: Unable to correct problems, you have held broken packages.
The command '/bin/sh -c buildDeps='curl gcc libc6-dev libpcre3-dev libssl-dev make libreadline-dev' && set -x && apt-get update && apt-get install --no-install-recommends -yqq $buildDeps cron wget ca-certificates curl patch python-setuptools dnsmasq libssl1.0.0 libpcre3 && apt-get install --no-install-recommends -yqq certbot -t jessie-backports && wget https://github.com/Supervisor/supervisor/archive/${SUPERVISOR_VERSION}.tar.gz && tar -xvf ${SUPERVISOR_VERSION}.tar.gz && cd supervisor-${SUPERVISOR_VERSION} && python setup.py install && apt-get clean autoclean && apt-get autoremove -y && rm -rf /var/lib/apt/lists/*' returned a non-zero code: 100