FROM ubuntu:18.04

ARG SALT_USER
ARG SALT_PASS

RUN adduser --no-create-home --disabled-password --gecos "" ${SALT_USER} && \
    echo "${SALT_USER}:${SALT_PASS}" | chpasswd && \
    apt-get update && \
    apt-get install -y ca-certificates wget gnupg2 gettext-base tzdata supervisor && \
    wget -O - https://repo.saltstack.com/py3/ubuntu/18.04/amd64/latest/SALTSTACK-GPG-KEY.pub | apt-key add - && \
    echo 'deb http://repo.saltstack.com/py3/ubuntu/18.04/amd64/latest bionic main' | tee /etc/apt/sources.list.d/saltstack.list && \
    apt-get update && \
    apt-get install -y salt-master salt-api && \
    mkdir -p /var/log/supervisor

COPY ./docker/salt/api.conf /etc/salt/master.tmp
RUN envsubst '\$SALT_USER' < /etc/salt/master.tmp | tee --append /etc/salt/master && \
    rm /etc/salt/master.tmp

COPY ./docker/salt/supervisor.conf /etc/supervisor/conf.d/supervisor.conf

EXPOSE 8123 4505 4506
CMD ["/usr/bin/supervisord"]