ARG RUBY_VERSION="3.4.3"
FROM ruby:${RUBY_VERSION}-alpine AS base

WORKDIR /app

RUN <<EOT
  apk update
  gem update --system --no-document
  gem install -N bundler
EOT


FROM base AS build

RUN <<EOT
  apk add musl-dev gcc make
EOT

COPY Gemfile* .

RUN <<EOT
  bundle config set --local without development
  bundle install
EOT


FROM base

ENV PORT=4567

RUN adduser --home /app --disabled-password app

USER app:app

COPY --from=build /usr/local/bundle /usr/local/bundle
COPY --from=build --chown=app:app /app /app

COPY --chown=app:app . .

EXPOSE 4567
CMD [ "puma", "--bind", "0.0.0.0", "--port", "$PORT" ]