Rails 7 dockerfile for shippers

Dockerfile

FROM docker.io/library/ruby:3.0.3-slim

RUN apt-get update -qq && apt-get install -y --no-install-recommends curl build-essential git-core libjemalloc2 && rm -rf /var/lib/apt/lists/*

ENV LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.2

# install sqlite
RUN curl -O https://www.sqlite.org/2021/sqlite-autoconf-3370000.tar.gz && tar xvzf sqlite-autoconf-3370000.tar.gz
RUN cd sqlite-autoconf-3370000 && ./configure && make && make install

# install hiveminde for Procfile.dev support
RUN curl -O -L https://github.com/DarthSim/hivemind/releases/download/v1.1.0/hivemind-v1.1.0-linux-amd64.gz
RUN gunzip hivemind-v1.1.0-linux-amd64.gz && mv hivemind-v1.1.0-linux-amd64 bin/hivemind

# install nodejs and npm (for jsbundling_rails)
RUN curl -fsSL https://deb.nodesource.com/setup_16.x | bash -
RUN apt-get install -y --no-install-recommends nodejs && rm -rf /var/lib/apt/lists/*
RUN corepack enable

ARG USER=app
ARG GROUP=app
ARG UID=1101
ARG GID=1101

RUN groupadd --gid $GID $GROUP
RUN useradd --uid $UID --gid $GID --groups $GROUP -ms /bin/bash $USER

RUN mkdir -p /var/app
RUN chown -R $USER:$GROUP /var/app

USER $USER
WORKDIR /var/app

COPY --chown=$USER Gemfile* /var/app/
RUN bundle install

COPY --chown=$USER . /var/app

CMD ["rails", "server", "-b", "0.0.0.0"]