Containerized docfx

docfx.Dockerfile

FROM mono:6.8
ARG DOCFX_VERSION=2.59.2
ARG APT_PROXY
RUN /bin/bash -c " \
	if [ -n \"${APT_PROXY}\" ]; then \
		echo 'Acquire::http { Proxy \"${APT_PROXY}\"; };' \
			>> /etc/apt/apt.conf.d/01proxy; \
	fi" && \
	apt-get update && \
	apt-get install -y \
		--no-install-recommends \
		--no-install-suggests \
		aria2 git unzip && \
	aria2c -x 16 -k 1M -j 4 -o /tmp/docfx.zip https://github.com/dotnet/docfx/releases/download/v${DOCFX_VERSION}/docfx.zip && \
	unzip /tmp/docfx.zip -d /opt/docfx && \
	rm /tmp/docfx.zip && \
	apt-get purge -y aria2 unzip && \
	apt-get autoremove -y && \
	apt-get clean && \
	rm -rf /var/lib/apt/lists/* && \
	adduser \
		--home /nonexistent \
		--shell /bin/false \
		--no-create-home \
		--gecos "" \
		--disabled-password \
		--disabled-login \
		docfx && \
	chown -R docfx:docfx /opt/docfx
USER docfx

ENTRYPOINT ["mono", "/opt/docfx/docfx.exe"]