Consume new Docker changes
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3 changed files with 35 additions and 18 deletions
40
Dockerfile
40
Dockerfile
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@ -1,25 +1,36 @@
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# syntax = docker/dockerfile:1
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# Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
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ARG RUBY_VERSION=3.2.2
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FROM registry.docker.com/library/ruby:$RUBY_VERSION-slim as base
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# This Dockerfile is designed for production, not development. Use with Kamal or build'n'run by hand:
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# docker build -t my-app .
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# docker run -d -p 80:80 -p 443:443 --name my-app -e RAILS_MASTER_KEY=<value from config/master.key> my-app
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# For a containerized dev environment, see Dev Containers: https://guides.rubyonrails.org/getting_started_with_devcontainer.html
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# Make sure RUBY_VERSION matches the Ruby version in .ruby-version
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ARG RUBY_VERSION=3.3.1
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FROM docker.io/library/ruby:$RUBY_VERSION-slim AS base
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# Rails app lives here
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WORKDIR /rails
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# Install base packages
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RUN apt-get update -qq && \
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apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 libvips && \
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rm -rf /var/lib/apt/lists /var/cache/apt/archives
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# Set production environment
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ENV RAILS_ENV="production" \
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BUNDLE_DEPLOYMENT="1" \
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BUNDLE_PATH="/usr/local/bundle" \
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BUNDLE_WITHOUT="development"
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# Throw-away build stage to reduce size of final image
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FROM base as build
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FROM base AS build
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# Install packages needed to build gems
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RUN apt-get update -qq && \
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apt-get install --no-install-recommends -y build-essential git libvips pkg-config
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apt-get install --no-install-recommends -y build-essential git pkg-config && \
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rm -rf /var/lib/apt/lists /var/cache/apt/archives
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# Install application gems
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COPY Gemfile Gemfile.lock ./
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@ -27,7 +38,6 @@ RUN bundle install && \
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rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git && \
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bundle exec bootsnap precompile --gemfile
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# Copy application code
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COPY . .
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@ -38,24 +48,20 @@ RUN bundle exec bootsnap precompile app/ lib/
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RUN SECRET_KEY_BASE_DUMMY=1 ./bin/rails assets:precompile
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# Final stage for app image
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FROM base
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# Install packages needed for deployment
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RUN apt-get update -qq && \
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apt-get install --no-install-recommends -y curl libsqlite3-0 libvips libjemalloc2 && \
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rm -rf /var/lib/apt/lists /var/cache/apt/archives
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# Copy built artifacts: gems, application
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COPY --from=build /usr/local/bundle /usr/local/bundle
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COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
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COPY --from=build /rails /rails
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# Run and own only the runtime files as a non-root user for security
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RUN useradd rails --create-home --shell /bin/bash && \
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RUN groupadd --system --gid 1000 rails && \
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useradd rails --uid 1000 --gid 1000 --create-home --shell /bin/bash && \
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chown -R rails:rails db log storage tmp
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USER rails:rails
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ENV LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.2
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USER 1000:1000
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# Entrypoint prepares the database.
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ENTRYPOINT ["/rails/bin/docker-entrypoint"]
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@ -166,6 +166,8 @@ GEM
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net-smtp (0.5.0)
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net-protocol
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nio4r (2.7.3)
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nokogiri (1.16.6-aarch64-linux)
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racc (~> 1.4)
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nokogiri (1.16.6-arm64-darwin)
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racc (~> 1.4)
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nokogiri (1.16.6-x86_64-linux)
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@ -246,12 +248,15 @@ GEM
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actionpack (>= 6.1)
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activesupport (>= 6.1)
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sprockets (>= 3.0.0)
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sqlite3 (2.0.2-aarch64-linux-gnu)
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sqlite3 (2.0.2-arm64-darwin)
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sqlite3 (2.0.2-x86_64-linux-gnu)
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stimulus-rails (1.3.3)
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railties (>= 6.0.0)
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stringio (3.1.1)
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strscan (3.1.0)
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tailwindcss-rails (2.6.1-aarch64-linux)
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railties (>= 7.0.0)
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tailwindcss-rails (2.6.1-arm64-darwin)
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railties (>= 7.0.0)
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tailwindcss-rails (2.6.1-x86_64-linux)
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@ -285,6 +290,7 @@ GEM
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zeitwerk (2.6.16)
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PLATFORMS
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aarch64-linux
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arm64-darwin-23
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x86_64-linux
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@ -1,7 +1,12 @@
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#!/bin/bash -e
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# Enable jemalloc for reduced memory usage and latency.
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if [ -z "${LD_PRELOAD+x}" ] && [ -f /usr/lib/*/libjemalloc.so.2 ]; then
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export LD_PRELOAD="$(echo /usr/lib/*/libjemalloc.so.2)"
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fi
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# If running the rails server then create or migrate existing database
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if [ "${*}" == "./bin/rails server" ]; then
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if [ "${1}" == "./bin/rails" ] && [ "${2}" == "server" ]; then
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./bin/rails db:prepare
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fi
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