Dockerfile

# If we change the Ruby version, we need to keep in sync:
#
#   * The constraint in the Gemfile.
#   * .ruby-version (used by CircleCI).
#   * Install the version by hand in the server (uses RVM).
#
FROM ruby:3.3.4-alpine3.20

# LANG as recommended in the Encoding section of https://hub.docker.com/_/ruby/.
ENV LANG C.UTF-8
ENV PS1 '\w\$ '
ENV BUNDLE_JOBS 4

# openssh-client is handy to check SSH access from within the container.
# curl is used in deployments.
# cmake is needed to compile rugged.
# gcompat is needed by nokogiri.
# git is used by the application itself.
# tzdata is needed by the TZinfo gem.
RUN apk --no-cache add --update \
  build-base \
  bash \
  openssh-client \
  cmake \
  curl \
  gcompat \
  git \
  vim \
  postgresql-client \
  postgresql-dev \
  tzdata \
  nodejs \
  yarn

RUN gem update --system
RUN gem install bundler -v '2.3.17'

WORKDIR /rails-contributors