# Use Alpine Linux as our base image so that we minimize the overall size our final container, and minimize the surface area of packages that could be out of date.
FROM alpine:3.9@sha256:b3dbf31b77fd99d9c08f780ce6f5282aba076d70a513a8be859d8d3a4d0c92b8

LABEL description="Docker container for building static sites with the Hugo static site generator."
LABEL maintainer="Johannes Mitlmeier <dev.jojomi@yahoo.com>"
LABEL maintainer="Drew Short <warrick@sothr.com>"

# config
ARG HUGO_VERSION=0.61.0
ENV HUGO_TYPE=_extended
ENV HUGO_ID=hugo${HUGO_TYPE}_${HUGO_VERSION}

VOLUME /src
VOLUME /output

WORKDIR /src
CMD ["/run.sh"]

EXPOSE 1313

COPY ./run.sh /run.sh
ADD https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/${HUGO_ID}_Linux-64bit.tar.gz /tmp
RUN tar -xf /tmp/${HUGO_ID}_Linux-64bit.tar.gz -C /tmp \
    && mkdir -p /usr/local/sbin \
    && mv /tmp/hugo /usr/local/sbin/hugo \
    && rm -rf /tmp/${HUGO_ID}_linux_amd64 \
    && rm -rf /tmp/${HUGO_ID}_Linux-64bit.tar.gz \
    && rm -rf /tmp/LICENSE.md \
    && rm -rf /tmp/README.md

RUN apk add --update git asciidoctor libc6-compat libstdc++ tar \
    && apk upgrade \
    && apk add --no-cache ca-certificates \
    && chmod 0777 /run.sh