FROM ruby:alpine RUN apk add --no-cache \ bash \ ca-certificates \ libxml2 \ libxslt \ postgresql-libs \ sqlite-libs RUN set -x \ && apk add --no-cache --virtual .build-deps \ build-base \ git \ libxml2-dev \ libxslt-dev \ pkgconfig \ postgresql-dev \ sqlite-dev \ && git clone --depth 1 https://github.com/heroku/windmill.git /usr/src/windmill \ && ( \ cd /usr/src/windmill \ && sed -i 's/ruby "2.2.3"/ruby "2.5.1"/' Gemfile \ && bundle config build.nokogiri --use-system-libraries \ && bundle install \ ) \ && apk del .build-deps WORKDIR /usr/src/windmill COPY entrypoint.sh /usr/local/bin/entrypoint.sh ENTRYPOINT [ "entrypoint.sh" ] CMD [ "ruby", "server.rb" ]