README

Running with Docker Compose
A sample Docker Compose configuration that runs Rails, Postgresql, and Redis.

Simply run:

docker-compose up
Then open http://localhost:3000

Running with Docker
If you'd like to run with Docker directly, you can run:

docker build --tag myapp .
docker run -p 3000:3000 myapp

docker-compose.yml

version: '3.2'
services:
  db:
    image: postgres:latest
    environment:
      - POSTGRES_PASSWORD=password
    ports:
      - "5432:5432"
    volumes:
      - "dbdata:/var/lib/postgresql/data"

  redis:
    image: redis:alpine
    ports:
      - "6379:6379"

  web:
    build: .
    ports:
      - "3000:3000"
    depends_on:
      - db
      - redis
    environment:
      - DATABASE_URL=postgres://postgres:password@db:5432/postgres
      - REDIS_URL=redis://redis:6379
      - PORT=3000
    volumes:
      - .:/app

volumes:
  dbdata:

Dockerfile

FROM ruby:3.2

RUN gem install "bundler:~>2" --no-document && \
    gem update --system && \
    gem cleanup

# NodeJS (https://github.com/nodejs/docker-node/blob/main/14/bullseye/Dockerfile)

ARG NODE_VERSION=18.14.0
RUN ARCH= && dpkgArch="$(dpkg --print-architecture)" \
  && case "${dpkgArch##*-}" in \
    amd64) ARCH='x64';; \
    ppc64el) ARCH='ppc64le';; \
    s390x) ARCH='s390x';; \
    arm64) ARCH='arm64';; \
    armhf) ARCH='armv7l';; \
    i386) ARCH='x86';; \
    *) echo "unsupported architecture"; exit 1 ;; \
  esac \
  # gpg keys listed at https://github.com/nodejs/node#release-keys
  && set -ex \
  && for key in \
    4ED778F539E3634C779C87C6D7062848A1AB005C \
    94AE36675C464D64BAFA68DD7434390BDBE9B9C5 \
    74F12602B6F1C4E913FAA37AD3A89613643B6201 \
    71DCFD284A79C3B38668286BC97EC7A07EDE3FC1 \
    8FCCA13FEF1D0C2E91008E09770F7A9A5AE15600 \
    C4F0DFFF4E8C1A8236409D08E73BC641CC11F4C8 \
    C82FA3AE1CBEDC6BE46B9360C43CEC45C17AB93C \
    DD8F2338BAE7501E3DD5AC78C273792F7D83545D \
    A48C2BEE680E841632CD4E44F07496B3EB3C1762 \
    108F52B48DB57BB0CC439B2997B01419BD92F80A \
    B9E2F5981AA6E0CD28160D9FF13993A75599653C \
  ; do \
      gpg --batch --keyserver hkps://keys.openpgp.org --recv-keys "$key" || \
      gpg --batch --keyserver keyserver.ubuntu.com --recv-keys "$key" ; \
  done \
  && curl -fsSLO --compressed "https://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION-linux-$ARCH.tar.xz" \
  && curl -fsSLO --compressed "https://nodejs.org/dist/v$NODE_VERSION/SHASUMS256.txt.asc" \
  && gpg --batch --decrypt --output SHASUMS256.txt SHASUMS256.txt.asc \
  && grep " node-v$NODE_VERSION-linux-$ARCH.tar.xz\$" SHASUMS256.txt | sha256sum -c - \
  && tar -xJf "node-v$NODE_VERSION-linux-$ARCH.tar.xz" -C /usr/local --strip-components=1 --no-same-owner \
  && rm "node-v$NODE_VERSION-linux-$ARCH.tar.xz" SHASUMS256.txt.asc SHASUMS256.txt \
  && ln -s /usr/local/bin/node /usr/local/bin/nodejs \
  # smoke tests
  && node --version \
  && npm --version

ARG YARN_VERSION=1.22.19
RUN set -ex \
  && for key in \
    6A010C5166006599AA17F08146C2130DFD2497F5 \
  ; do \
    gpg --batch --keyserver hkps://keys.openpgp.org --recv-keys "$key" || \
    gpg --batch --keyserver keyserver.ubuntu.com --recv-keys "$key" ; \
  done \
  && curl -fsSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
  && curl -fsSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
  && gpg --batch --verify yarn-v$YARN_VERSION.tar.gz.asc yarn-v$YARN_VERSION.tar.gz \
  && mkdir -p /opt \
  && tar -xzf yarn-v$YARN_VERSION.tar.gz -C /opt/ \
  && ln -s /opt/yarn-v$YARN_VERSION/bin/yarn /usr/local/bin/yarn \
  && ln -s /opt/yarn-v$YARN_VERSION/bin/yarnpkg /usr/local/bin/yarnpkg \
  && rm yarn-v$YARN_VERSION.tar.gz.asc yarn-v$YARN_VERSION.tar.gz \
  # smoke test
  && yarn --version

# App dependencies

RUN apt-get update -qq && \
    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends imagemagick libvips libvips-dev libvips-tools libpq-dev poppler-utils && \
    rm -rf /var/lib/apt/lists/* /var/cache/apt

# App
WORKDIR /app
COPY ./Gemfile* /app/

RUN bundle config --local without "staging production omit" && bundle install --jobs $(nproc) --retry 5
COPY package.json yarn.lock /app/
RUN yarn install
COPY . /app

CMD ["bin/rails", "s", "-b", "0.0.0.0"]

EXPOSE 3000