|
1 | | -FROM ruby:2.7.2 |
| 1 | +# syntax = docker/dockerfile:1 |
2 | 2 |
|
3 | | -# throw errors if Gemfile has been modified since Gemfile.lock |
4 | | -RUN bundle config --global frozen 1 |
| 3 | +# Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile |
| 4 | +ARG RUBY_VERSION=3.1.4 |
| 5 | +FROM ruby:$RUBY_VERSION-slim as base |
5 | 6 |
|
6 | | -RUN mkdir -p /usr/src/app |
7 | | -WORKDIR /usr/src/app |
| 7 | +# Rails app lives here |
| 8 | +WORKDIR /rails |
8 | 9 |
|
9 | | -COPY Gemfile /usr/src/app/ |
10 | | -COPY Gemfile.lock /usr/src/app/ |
11 | | -RUN bundle install |
| 10 | +# Set production environment |
| 11 | +ENV RAILS_ENV="production" \ |
| 12 | + BUNDLE_WITHOUT="development:test" \ |
| 13 | + BUNDLE_DEPLOYMENT="1" |
12 | 14 |
|
13 | | -COPY . /usr/src/app |
| 15 | +# Update gems and bundler |
| 16 | +RUN gem update --system --no-document && \ |
| 17 | + gem install -N bundler |
14 | 18 |
|
15 | | -EXPOSE 3000 |
| 19 | +# Install packages needed to install nodejs |
| 20 | +RUN apt-get update -qq && \ |
| 21 | + apt-get install --no-install-recommends -y curl && \ |
| 22 | + rm -rf /var/lib/apt/lists /var/cache/apt/archives |
| 23 | + |
| 24 | +# Install Node.js |
| 25 | +ARG NODE_VERSION=18.16.0 |
| 26 | +ENV PATH=/usr/local/node/bin:$PATH |
| 27 | +RUN curl -sL https://github.com/nodenv/node-build/archive/master.tar.gz | tar xz -C /tmp/ && \ |
| 28 | + /tmp/node-build-master/bin/node-build "${NODE_VERSION}" /usr/local/node && \ |
| 29 | + rm -rf /tmp/node-build-master |
| 30 | + |
| 31 | + |
| 32 | +# Throw-away build stage to reduce size of final image |
| 33 | +FROM base as build |
| 34 | + |
| 35 | +# Install packages needed to build gems |
| 36 | +RUN apt-get update -qq && \ |
| 37 | + apt-get install --no-install-recommends -y build-essential libpq-dev |
| 38 | + |
| 39 | +# Build options |
| 40 | +ENV PATH="/usr/local/node/bin:$PATH" |
| 41 | + |
| 42 | +# Install application gems |
| 43 | +COPY --link Gemfile Gemfile.lock ./ |
| 44 | +RUN bundle install && \ |
| 45 | + bundle exec bootsnap precompile --gemfile && \ |
| 46 | + rm -rf ~/.bundle/ $BUNDLE_PATH/ruby/*/cache $BUNDLE_PATH/ruby/*/bundler/gems/*/.git |
| 47 | + |
| 48 | +# Copy application code |
| 49 | +COPY --link . . |
16 | 50 |
|
17 | | -# install s6overlay so that we can run cron inside this container as well. |
18 | | -ADD https://github.com/just-containers/s6-overlay/releases/download/v1.21.8.0/s6-overlay-amd64.tar.gz /tmp/ |
19 | | -RUN tar xzf /tmp/s6-overlay-amd64.tar.gz -C / \ |
20 | | - && mkdir /config \ |
21 | | - && apt-get update \ |
22 | | - && apt-get install -y cron \ |
23 | | - && rm -rf /var/lib/apt/lists/* |
| 51 | +# Precompile bootsnap code for faster boot times |
| 52 | +RUN bundle exec bootsnap precompile app/ lib/ |
24 | 53 |
|
25 | | -COPY rootfs/ / |
26 | | -VOLUME ["/config"] |
| 54 | +# Precompiling assets for production without requiring secret RAILS_MASTER_KEY |
| 55 | +RUN SECRET_KEY_BASE=DUMMY ./bin/rails assets:precompile |
27 | 56 |
|
28 | | -ENTRYPOINT ["/init"] |
| 57 | + |
| 58 | +# Final stage for app image |
| 59 | +FROM base |
| 60 | + |
| 61 | +# Install packages needed for deployment |
| 62 | +RUN apt-get update -qq && \ |
| 63 | + apt-get install --no-install-recommends -y curl postgresql-client && \ |
| 64 | + rm -rf /var/lib/apt/lists /var/cache/apt/archives |
| 65 | + |
| 66 | +# Copy built artifacts: gems, application |
| 67 | +COPY --from=build /usr/local/bundle /usr/local/bundle |
| 68 | +COPY --from=build /rails /rails |
| 69 | + |
| 70 | +# Run and own only the runtime files as a non-root user for security |
| 71 | +RUN useradd rails --create-home --shell /bin/bash && \ |
| 72 | + chown -R rails:rails db log tmp |
| 73 | +USER rails:rails |
| 74 | + |
| 75 | +# Deployment options |
| 76 | +ENV RAILS_LOG_TO_STDOUT="1" \ |
| 77 | + RAILS_SERVE_STATIC_FILES="true" |
| 78 | + |
| 79 | +# Entrypoint prepares the database. |
| 80 | +ENTRYPOINT ["/rails/bin/docker-entrypoint"] |
| 81 | + |
| 82 | +# Start the server by default, this can be overwritten at runtime |
| 83 | +EXPOSE 3000 |
| 84 | +CMD ["./bin/rails", "server"] |
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