update Dockerfile

Dockerfile

@@ -1,28 +1,80 @@
-FROM ruby:2.7.8-bullseye as builder
-LABEL maintainer="nabeta@fastmail.fm"
+# syntax = docker/dockerfile:1
 
-ARG http_proxy
-ARG https_proxy
+# Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
+ARG RUBY_VERSION=2.7.8
+FROM registry.docker.com/library/ruby:$RUBY_VERSION-slim as base
 
-COPY Gemfile /
-COPY Gemfile.lock /
-RUN apt-get update -qq && apt-get install -y libpq-dev && bundle install
+# Rails app lives here
+WORKDIR /enju
 
-FROM ruby:2.7.8-bullseye
-LABEL maintainer="nabeta@fastmail.fm"
+# Set production environment
+ENV RAILS_ENV="production" \
+    BUNDLE_DEPLOYMENT="1" \
+    BUNDLE_PATH="/usr/local/bundle" \
+    BUNDLE_WITHOUT="development"
 
-ARG http_proxy
-ARG https_proxy
+
+# Throw-away build stage to reduce size of final image
+FROM base as build
+
+# Install packages needed to build gems
+RUN apt-get update -qq && apt-get install --no-install-recommends -y curl gnupg && \
+  mkdir -p /etc/apt/keyrings && \
+  curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg && \
+  curl -sL https://dl.yarnpkg.com/debian/pubkey.gpg | gpg --dearmor -o /etc/apt/keyrings/yarnkey.gpg && \
+  echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_16.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list && \
+  echo "deb [signed-by=/etc/apt/keyrings/yarnkey.gpg] https://dl.yarnpkg.com/debian stable main" | tee /etc/apt/sources.list.d/yarn.list && \
+    apt-get update -qq && \
+    apt-get install --no-install-recommends -y build-essential git libpq-dev pkg-config nodejs yarn shared-mime-info
+
+# Install application gems
+COPY Gemfile Gemfile.lock ./
+RUN bundle install && \
+    rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git && \
+    bundle exec bootsnap precompile --gemfile && \
+    yarn install
+
+# Copy application code
+COPY . .
+
+# Precompile bootsnap code for faster boot times
+RUN bundle exec bootsnap precompile app/ lib/
+
+# Precompiling assets for production without requiring secret RAILS_MASTER_KEY
+# RUN SECRET_KEY_BASE_DUMMY=1 ./bin/rails assets:precompile
+
+
+# Final stage for app image
+FROM base
 ARG UID=1000
 ARG GID=1000
+ARG http_proxy
+ARG https_proxy
 
-RUN groupadd --gid ${GID} enju && useradd -m --uid ${UID} --gid ${GID} enju
-RUN apt-get update -qq && curl -sL https://deb.nodesource.com/setup_16.x | bash - && \
-  apt-get install -y nodejs postgresql-client imagemagick poppler-utils ffmpeg && npm install -g yarn
-RUN mkdir /enju && chown -R enju:enju /enju
-USER enju
-WORKDIR /enju
-ADD package.json yarn.lock ./
-RUN yarn install --frozen-lockfile
-COPY --from=builder /usr/local/bundle /usr/local/bundle
-COPY . /enju/
+# Install packages needed for deployment
+RUN apt-get update -qq && apt-get install --no-install-recommends -y curl gnupg && \
+  mkdir -p /etc/apt/keyrings && \
+  curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg && \
+  curl -sL https://dl.yarnpkg.com/debian/pubkey.gpg | gpg --dearmor -o /etc/apt/keyrings/yarnkey.gpg && \
+  echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_16.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list && \
+  echo "deb [signed-by=/etc/apt/keyrings/yarnkey.gpg] https://dl.yarnpkg.com/debian stable main" | tee /etc/apt/sources.list.d/yarn.list && \
+    apt-get update -qq && \
+    apt-get install --no-install-recommends -y libvips postgresql-client nodejs yarn file imagemagick poppler-utils ffmpeg && \
+    rm -rf /var/lib/apt/lists /var/cache/apt/archives
+
+# Copy built artifacts: gems, application
+COPY --from=build /usr/local/bundle /usr/local/bundle
+COPY --from=build /enju /enju
+
+# Run and own only the runtime files as a non-root user for security
+RUN groupadd --gid ${GID} enju && \
+    useradd enju --uid ${UID} --gid ${GID} --create-home --shell /bin/bash && \
+    chown -R enju:enju db log storage tmp
+USER enju:enju
+
+# Entrypoint prepares the database.
+ENTRYPOINT ["/enju/bin/docker-entrypoint"]
+
+# Start the server by default, this can be overwritten at runtime
+EXPOSE 3000
+CMD ["./bin/rails", "server"]

Gemfile.lock

@@ -100,7 +100,7 @@ GEM
       caxlsx (>= 3.0)
     climate_control (0.2.0)
     cocoon (1.2.15)
-    concurrent-ruby (1.3.3)
+    concurrent-ruby (1.3.4)
     crack (1.0.0)
       bigdecimal
       rexml
@@ -237,7 +237,7 @@ GEM
     mini_magick (4.13.2)
     mini_mime (1.1.5)
     mini_portile2 (2.8.7)
-    minitest (5.24.1)
+    minitest (5.25.0)
     mono_logger (1.1.2)
     msgpack (1.7.2)
     multi_json (1.15.0)
@@ -272,7 +272,7 @@ GEM
       terrapin (~> 0.6.0)
     paperclip-meta (3.1.0)
       paperclip (>= 5.0)
-    parallel (1.26.1)
+    parallel (1.26.3)
     parallel_tests (4.7.1)
       parallel
     pg (1.4.6)
@@ -367,7 +367,7 @@ GEM
       typesafe_enum (~> 0.1, >= 0.1.5)
       xml-mapping (~> 0.10)
       xml-mapping_extensions (~> 0.4, >= 0.4.8)
-    rexml (3.3.4)
+    rexml (3.3.5)
       strscan
     rsolr (2.6.0)
       builder (>= 2.1.2)
@@ -380,7 +380,7 @@ GEM
     rspec-mocks (3.13.1)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
-    rspec-rails (6.1.3)
+    rspec-rails (6.1.4)
       actionpack (>= 6.1)
       activesupport (>= 6.1)
       railties (>= 6.1)

bin/docker-entrypoint

@@ -0,0 +1,8 @@
+#!/bin/bash -e
+
+# If running the rails server then create or migrate existing database
+if [ "${1}" == "./bin/rails" ] && [ "${2}" == "server" ]; then
+  ./bin/rails db:prepare
+fi
+
+exec "${@}"

config/initializers/paperclip.rb

@@ -4,7 +4,7 @@ class MediaTypeSpoofDetector
     def type_from_file_command
       begin
         Paperclip.run("LANG=C file", "-b --mime-type :file", :file => @file.path)
-      rescue Cocaine::CommandLineError
+      rescue Terrapin::CommandLineError
         ""
       end
     end

docker-compose.yml

@@ -32,7 +32,7 @@ x-app: &app
 services:
   web:
     <<: *app
-    command: bash -c "rm -f tmp/pids/server.pid && rails s -b 0.0.0.0"
+    command: bash -c "rm -f tmp/pids/server.pid && bin/rails s -b 0.0.0.0"
     environment:
       - WEBPACKER_DEV_SERVER_HOST=webpacker
     expose: