pagy-on-docker/pagy-jekyll.dockerfile

FROM ruby:2-alpine

WORKDIR /opt

# one step to exclude .build_deps from docker cache
RUN apk update \
 && apk add --no-cache --virtual .build_deps make build-base \
 && echo "source 'https://rubygems.org'" > Gemfile \
 && echo "gem 'github-pages', '212', group: :jekyll_plugins" >> Gemfile \
 && bundle install \
 && apk del .build_deps

ENV LANG=en_US.UTF-8 \
    LANGUAGE=en_US.UTF-8 \
    LC_ALL=en_US.UTF-8

CMD ["jekyll", "serve", "-H", "0.0.0.0", "-P", "4000"]

EXPOSE 4000 35729
VOLUME /opt/site