Standardize setup

Dockerfile

@@ -2,8 +2,8 @@
 # check=error=true
 
 # This Dockerfile is designed for production, not development. Use with Kamal or build'n'run by hand:
-# docker build -t dinnertime .
-# docker run -d -p 80:80 -e RAILS_MASTER_KEY=<value from config/master.key> --name dinnertime dinnertime
+# docker build -t whatchy_rails .
+# docker run -d -p 80:80 -e RAILS_MASTER_KEY=<value from config/master.key> --name whatchy_rails whatchy_rails
 
 # For a containerized dev environment, see Dev Containers: https://guides.rubyonrails.org/getting_started_with_devcontainer.html
 
@@ -16,33 +16,33 @@ WORKDIR /rails
 
 # Install base packages
 RUN apt-get update -qq && \
-  apt-get install --no-install-recommends -y curl libjemalloc2 libvips postgresql-client && \
-  ln -s /usr/lib/$(uname -m)-linux-gnu/libjemalloc.so.2 /usr/local/lib/libjemalloc.so && \
-  rm -rf /var/lib/apt/lists /var/cache/apt/archives
+    apt-get install --no-install-recommends -y curl libjemalloc2 libvips postgresql-client && \
+    ln -s /usr/lib/$(uname -m)-linux-gnu/libjemalloc.so.2 /usr/local/lib/libjemalloc.so && \
+    rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Set production environment variables and enable jemalloc for reduced memory usage and latency.
 ENV RAILS_ENV="production" \
-  BUNDLE_DEPLOYMENT="1" \
-  BUNDLE_PATH="/usr/local/bundle" \
-  BUNDLE_WITHOUT="development" \
-  LD_PRELOAD="/usr/local/lib/libjemalloc.so"
+    BUNDLE_DEPLOYMENT="1" \
+    BUNDLE_PATH="/usr/local/bundle" \
+    BUNDLE_WITHOUT="development" \
+    LD_PRELOAD="/usr/local/lib/libjemalloc.so"
 
 # 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 build-essential git libpq-dev libyaml-dev pkg-config python-is-python3 && \
-  rm -rf /var/lib/apt/lists /var/cache/apt/archives
+    apt-get install --no-install-recommends -y build-essential git libpq-dev libvips libyaml-dev pkg-config && \
+    rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Install application gems
 COPY vendor/* ./vendor/
 COPY Gemfile Gemfile.lock ./
 
 RUN bundle install && \
-  rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git && \
-  # -j 1 disable parallel compilation to avoid a QEMU bug: https://github.com/rails/bootsnap/issues/495
-  bundle exec bootsnap precompile -j 1 --gemfile
+    rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git && \
+    # -j 1 disable parallel compilation to avoid a QEMU bug: https://github.com/rails/bootsnap/issues/495
+    bundle exec bootsnap precompile -j 1 --gemfile
 
 # Copy application code
 COPY . .
@@ -54,12 +54,15 @@ RUN bundle exec bootsnap precompile -j 1 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
 
 # Run and own only the runtime files as a non-root user for security
 RUN groupadd --system --gid 1000 rails && \
-  useradd rails --uid 1000 --gid 1000 --create-home --shell /bin/bash
+    useradd rails --uid 1000 --gid 1000 --create-home --shell /bin/bash
 USER 1000:1000
 
 # Copy built artifacts: gems, application

Gemfile

@@ -69,7 +69,6 @@ gem "devise", "~> 5.0"
 gem "devise-bootstrap-views", "~> 1.1"
 gem "kaminari", "~> 1.1"
 gem "tvdb2", github: "pioz/tvdb2", ref: "e720ffb"
-gem "health_check", "~> 3.1"
 gem "aws-sdk-s3", require: false
 gem "ruby-vips", "~> 2.3"
 

Gemfile.lock

@@ -147,8 +147,6 @@ GEM
     ffi (1.17.4)
     globalid (1.3.0)
       activesupport (>= 6.1)
-    health_check (3.1.0)
-      railties (>= 5.0)
     httparty (0.24.0)
       csv
       mini_mime (>= 1.0.0)
@@ -381,7 +379,6 @@ DEPENDENCIES
   devise-bootstrap-views (~> 1.1)
   dotenv-rails (~> 3.0)
   factory_bot_rails (~> 6.0)
-  health_check (~> 3.1)
   image_processing (~> 2.0)
   importmap-rails
   json_spec (~> 1.1)

config/environments/production.rb

@@ -83,7 +83,7 @@
   #   "example.com",     # Allow requests from example.com
   #   /.*\.example\.com/ # Allow requests from subdomains like `www.example.com`
   # ]
-  #
+
   # Skip DNS rebinding protection for the default health check endpoint.
-  # config.host_authorization = { exclude: ->(request) { request.path == "/up" } }
+  config.host_authorization = { exclude: ->(request) { request.path == "/up" } }
 end

config/routes.rb

@@ -1,7 +1,9 @@
 Rails.application.routes.draw do
   root to: "home#index"
 
-  get :ping, to: ->(env) { [ "200", { "Content-Type" => "text/plain" }, [ "pong" ] ] }
+  # Reveal health status on /up that returns 200 if the app boots with no exceptions, otherwise 500.
+  # Can be used by load balancers and uptime monitors to verify that the app is live.
+  get "up" => "rails/health#show", as: :rails_health_check
 
   resources :activities, only: [ :index ]