think this might work, time to begin testing

Dockerfile

@@ -0,0 +1,39 @@
+# focal 2020.01 dev
+FROM ubuntu@sha256:d050ed7278c16ff627e4a70d7d353f1a2ec74d8a0b66e5a865356d92f5f6d87b
+
+ENV DEBIAN_FRONTEND noninteractive
+
+ARG UBUNTU_MIRROR=http://archive.ubuntu.com/ubuntu
+RUN echo "deb $UBUNTU_MIRROR focal main universe restricted multiverse" > /etc/apt/sources.list.new && \
+echo "deb $UBUNTU_MIRROR focal-updates main universe restricted multiverse" >> /etc/apt/sources.list.new && \
+echo "deb $UBUNTU_MIRROR focal-security main universe restricted multiverse" >> /etc/apt/sources.list.new && \
+echo "deb $UBUNTU_MIRROR focal-backports main universe restricted multiverse" >> /etc/apt/sources.list.new && \
+mv /etc/apt/sources.list.new /etc/apt/sources.list
+
+COPY ./root /tmp/rootoverlay
+COPY ./run.sh /tmp/run.sh
+
+# we only install essential system packages here
+ARG SYSTEM_PACKAGES="build-essential ca-certificates openssh-server git golang rsync runit"
+
+RUN \
+    apt update && \
+    apt -y upgrade && \
+    apt -y install $SYSTEM_PACKAGES && \
+    rsync -avP /tmp/rootoverlay/ / && \
+    rm -rf /tmp/rootoverlay && \
+    go get -v -u git.eeqj.de/sneak/runsvinit && \
+    cp /root/go/bin/runsvinit /usr/local/sbin/runsvinit && \
+    rm -r /root/go && \
+    /bin/bash /tmp/run.sh && \
+    rm -f /tmp/run.sh
+
+# /var/log is distro-default stuff, /var/logs is ours.
+VOLUME /var/logs
+
+EXPOSE 514
+EXPOSE 514/udp
+# RELP:
+EXPOSE 20514
+
+CMD ["/usr/local/sbin/runsvinit"]