Dockerfile

FROM rails

WORKDIR /usr/src/app

ENV DISCOURSE_VERSION 1.9.0

RUN curl -L https://github.com/discourse/discourse/archive/v${DISCOURSE_VERSION}.tar.gz \
  | tar -xz -C /usr/src/app --strip-components 1 \
  && bundle install --deployment --without test --without development \
  && mkdir -p /home/discourse/discourse/tmp/sockets

RUN apt-get update && apt-get install -y --no-install-recommends \
    imagemagick libxml2 advancecomp \
    gifsicle jpegoptim libjpeg-progs \
    optipng pngcrush pngquant jhead \
  && rm -rf /var/lib/apt/lists/* \
  && curl -sL https://deb.nodesource.com/setup_8.x | bash - \
  && apt-get install -y --no-install-recommends nodejs \
  && ln -s /usr/local/bin/node /usr/local/bin/nodejs \
  && npm install -g svgo

ADD puma.rb /usr/src/app/config/puma.rb

ENV RAILS_ENV production
ENV DISCOURSE_DB_HOST postgres
ENV DISCOURSE_REDIS_HOST redis
ENV DISCOURSE_SERVE_STATIC_ASSETS true

EXPOSE 3000

CMD ["rails", "server"]