Dockerfile for

Dockerfile

# .dockerdev/Dockerfile
ARG RUBY_VERSION
ARG DISTRO_NAME

FROM ruby:$RUBY_VERSION-slim-$DISTRO_NAME

# Common dependencies
RUN apt-get update -qq \
  && DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends \
    build-essential \
    gnupg2 \
    curl \
    less \
    git \
  && apt-get clean \
  && rm -rf /var/cache/apt/archives/* \
  && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
  && truncate -s 0 /var/log/*log

ARG PG_MAJOR
ARG DISTRO_NAME
RUN curl -sSL https://www.postgresql.org/media/keys/ACCC4CF8.asc |\
    gpg --dearmor -o /usr/share/keyrings/postgres-archive-keyring.gpg\
    && echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/postgres-archive-keyring.gpg] https://apt.postgresql.org/pub/repos/apt/"\
    $DISTRO_NAME-pgdg main $PG_MAJOR | tee /etc/apt/sources.list.d/postgres.list > /dev/null
RUN apt-get update -qq && DEBIAN_FRONTEND=noninteractive apt-get -yq dist-upgrade && \
  DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends \
    libpq-dev \
    postgresql-client-$PG_MAJOR \
    && apt-get clean \
    && rm -rf /var/cache/apt/archives/* \
    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
    && truncate -s 0 /var/log/*log

# Application dependencies
# We use an external Aptfile for this, stay tuned
COPY Aptfile /tmp/Aptfile
RUN apt-get update -qq && DEBIAN_FRONTEND=noninteractive apt-get -yq dist-upgrade && \
  DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends \
    $(grep -Ev '^\s*#' /tmp/Aptfile | xargs) \
    && apt-get clean \
    && rm -rf /var/cache/apt/archives/* \
    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
    && truncate -s 0 /var/log/*log

# Configure bundler
ENV LANG=C.UTF-8 \
  BUNDLE_JOBS=4 \
  BUNDLE_RETRY=3 

# Uncomment this line if you store Bundler settings in the project's root
# ENV BUNDLE_APP_CONFIG=.bundle

# Uncomment this line if you want to run binstubs without prefixing with `bin/` or `bundle exec`
# ENV PATH /app/bin:$PATH

# Upgrade RubyGems and install required Bundler version
# See https://github.com/evilmartians/terraforming-rails/pull/24 for discussion

ARG BUNDLER_VERSION
RUN gem update --system && \
    rm /usr/local/lib/ruby/gems/*/specifications/default/bundler-*.gemspec && \
    gem uninstall bundler && \
    gem install bundler -v $BUNDLER_VERSION

# Create a directory for the app code
RUN mkdir -p /app

WORKDIR /app

# Document that we're going to expose port 3000
EXPOSE 3000
# Use Bash as the default command
CMD ["/usr/bin/bash"]