Dockerfile

FROM ruby:2.7.5-alpine3.15 AS middleman
RUN apk add --no-cache libxml2
RUN apk add --update --no-cache npm git build-base

COPY docs/Gemfile docs/Gemfile.lock /

RUN bundle install --jobs=4

COPY docs /docs
COPY public /public
COPY swagger /swagger

WORKDIR /docs
RUN bundle exec middleman build --build-dir=../public

###

FROM ruby:3.3.5-alpine3.20

RUN apk add --no-cache libxml2

RUN apk add --update --no-cache tzdata && \
  cp /usr/share/zoneinfo/Europe/London /etc/localtime && \
  echo "Europe/London" > /etc/timezone

RUN apk add --update --no-cache \
  postgresql-dev git ncurses shared-mime-info jemalloc

ENV APP_HOME=/app

RUN mkdir $APP_HOME
WORKDIR $APP_HOME

ADD Gemfile $APP_HOME/Gemfile
ADD Gemfile.lock $APP_HOME/Gemfile.lock
ADD .ruby-version $APP_HOME/.ruby-version

RUN apk add --update --no-cache --virtual build-dependencies \
  build-base && \
  apk add --update --no-cache libpq yarn && \
  bundle install --jobs=4 && \
  rm -rf /usr/local/bundle/cache && \
  apk del build-dependencies

ENV LD_PRELOAD="/usr/lib/libjemalloc.so.2"

COPY package.json yarn.lock ./
RUN yarn install --frozen-lockfile && \
  yarn cache clean

ADD . $APP_HOME/

COPY --from=middleman /public/ $APP_HOME/public/docs/

RUN ls /app/public/ && \
  yarn build && \
  bundle exec rake assets:precompile && \
  rm -rf node_modules tmp

ARG COMMIT_SHA
ENV COMMIT_SHA=${COMMIT_SHA}

CMD bundle exec rails db:migrate:with_data_migrations && bundle exec rails server -b 0.0.0.0