Dockerfile

FROM ruby:3.3.5-slim-bookworm AS builder

RUN apt update && apt install -y \
      g++ \
      gcc \
      make \
      libstdc++-12-dev \
      libffi-dev \
      libc-dev \
      libxml2-dev \
      libxslt-dev \
      libgcrypt-dev \
      libsqlite3-dev \
      sqlite3 \
      # not needed for gems, but for runtime
      git \
      tzdata \
      && rm -rf /var/lib/apt/lists/*

ENV APP_HOME=/hdm
WORKDIR $APP_HOME

COPY . $APP_HOME
COPY config/hdm.yml.template $APP_HOME/config/hdm.yml

RUN bundle check || (bundle config set --local without 'development test release' && bundle install)

###############################################################################

FROM ruby:3.3.5-slim-bookworm

ENV APP_HOME=/hdm
ENV RAILS_ENV=production
ENV HDM_PORT=3000
ENV HDM_HOST=0.0.0.0
ENV RUBYOPT="--yjit"

EXPOSE $HDM_PORT

WORKDIR $APP_HOME

# copy only the needed files from the builder image
COPY --from=builder /usr/local/bundle /usr/local/bundle
COPY --from=builder $APP_HOME $APP_HOME

CMD ["sh", "-c", "/hdm/bin/entry.sh ${HDM_PORT} ${HDM_HOST}"]