FIX: Staging/preview PRs are broken on render.com

.github/workflows/pull_request.yml

@@ -32,7 +32,7 @@ jobs:
     secrets: inherit
     with:
       name: Preview
-      target: production
+      target: staging
       image: "gmmcal/gmmcal:preview-${{ github.event.number }}-${{ github.run_number }}"
       publish: true
 

Dockerfile

@@ -61,6 +61,20 @@ ENTRYPOINT ["/rails/bin/docker-entrypoint"]
 EXPOSE 3000
 CMD ["bundle", "exec", "puma", "-C", "config/puma.rb"]
 
+FROM production AS staging
+
+ENV RAILS_ENV="staging" \
+  BUNDLE_DEPLOYMENT="1" \
+  BUNDLE_PATH="/usr/local/bundle" \
+  BUNDLE_WITHOUT="development"
+
+# Entrypoint prepares the database.
+ENTRYPOINT ["/rails/bin/docker-entrypoint"]
+
+# Start the server by default, this can be overwritten at runtime
+EXPOSE 3000
+CMD ["bundle", "exec", "puma", "-C", "config/puma.rb"]
+
 # Development image
 FROM base AS development
 

Gemfile

@@ -65,7 +65,7 @@ group :test, :development do
   gem "cypress-on-rails"
 end
 
-group :production do
+group :production, :staging do
   # Use puma as the app server
   gem "puma"
   gem "rack-cors"

bin/docker-entrypoint

@@ -1,7 +1,8 @@
 #!/bin/bash -e
 
 # ./bin/rails server (executed on production image)
-if [ "${1}" == "./bin/rails" ] && [ "${2}" == "server" ]; then
+if [ "${3}" == "puma" ]; then
+  echo "booting application on staging"
   ./bin/rails db:migrate
   ./bin/rails db:seed:all
 fi

config/cable.yml

@@ -8,6 +8,9 @@ development:
 test:
   adapter: test
 
+staging:
+  adapter: async
+
 production:
   adapter: solid_cable
   connects_to:

config/cache.yml

@@ -12,6 +12,9 @@ development:
 test:
   <<: *default
 
+staging:
+  <<: *default
+
 production:
   database: cache
   <<: *default

config/database.yml

@@ -77,6 +77,11 @@ test:
 # Read https://guides.rubyonrails.org/configuring.html#configuring-a-database
 # for a full overview on how database connection configuration can be specified.
 #
+
+staging:
+  <<: *default
+  url: <%= ENV['DATABASE_URL'] %>
+
 production:
   primary: &primary_production
     <<: *default

config/environments/staging.rb

@@ -0,0 +1,117 @@
+# frozen_string_literal: true
+
+require "active_support/core_ext/integer/time"
+
+Rails.application.configure do
+  # Settings specified here will take precedence over those in config/application.rb.
+
+  # Code is not reloaded between requests.
+  config.enable_reloading = false
+
+  # Eager load code on boot for better performance and memory savings (ignored by Rake tasks).
+  config.eager_load = true
+
+  # Full error reports are disabled.
+  config.consider_all_requests_local = false
+
+  # Turn on fragment caching in view templates.
+  config.action_controller.perform_caching = true
+
+  # Cache assets for far-future expiry since they are all digest stamped.
+  config.public_file_server.headers = { "cache-control" => "public, max-age=#{1.year.to_i}" }
+
+  # Enable serving of images, stylesheets, and JavaScripts from an asset server.
+  # config.asset_host = "http://assets.example.com"
+
+  # Store uploaded files on the local file system (see config/storage.yml for options).
+  config.active_storage.service = :local
+
+  # Assume all access to the app is happening through a SSL-terminating reverse proxy.
+  config.assume_ssl = true
+
+  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
+  config.force_ssl = true
+
+  # Skip http-to-https redirect for the default health check endpoint.
+  # config.ssl_options = { redirect: { exclude: ->(request) { request.path == "/up" } } }
+
+  # Log to STDOUT with the current request id as a default log tag.
+  config.log_tags = [ :request_id ]
+  config.logger   = ActiveSupport::TaggedLogging.logger($stdout)
+
+  # Change to "debug" to log everything (including potentially personally-identifiable information!)
+  config.log_level = ENV.fetch("RAILS_LOG_LEVEL", "info")
+
+  # Prevent health checks from clogging up the logs.
+  config.silence_healthcheck_path = "/up"
+
+  # Don't log any deprecations.
+  config.active_support.report_deprecations = false
+
+  # Replace the default in-process memory cache store with a durable alternative.
+  config.cache_store = :memory_store
+
+  # Replace the default in-process and non-durable queuing backend for Active Job.
+  # config.active_job.queue_adapter = :solid_queue
+  # config.solid_queue.connects_to = { database: { writing: :queue } }
+
+  # Ignore bad email addresses and do not raise email delivery errors.
+  # Set this to true and configure the email server for immediate delivery to raise delivery errors.
+  # config.action_mailer.raise_delivery_errors = false
+
+  # Set host to be used by links generated in mailer templates.
+  config.action_mailer.default_url_options = { host: "example.com" }
+
+  # Specify outgoing SMTP server. Remember to add smtp/* credentials via rails credentials:edit.
+  # config.action_mailer.smtp_settings = {
+  #   user_name: Rails.application.credentials.dig(:smtp, :user_name),
+  #   password: Rails.application.credentials.dig(:smtp, :password),
+  #   address: "smtp.example.com",
+  #   port: 587,
+  #   authentication: :plain
+  # }
+
+  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
+  # the I18n.default_locale when a translation cannot be found).
+  config.i18n.fallbacks = true
+
+  # Do not dump schema after migrations.
+  config.active_record.dump_schema_after_migration = false
+
+  # Only use :id for inspections in production.
+  config.active_record.attributes_for_inspect = [ :id ]
+
+  # Enable DNS rebinding protection and other `Host` header attacks.
+  # config.hosts = [
+  #   "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" } }
+end
+
+Rails.application.configure do
+  # Ensures that a master key has been made available in either
+  # ENV["RAILS_MASTER_KEY"] or in config/master.key. This key is used to decrypt
+  # credentials (and other encrypted files).
+  config.require_master_key = true
+
+  # Prepend all log lines with the following tags.
+  config.log_tags = %i[request_id]
+
+  # Enable serving of images, stylesheets, and JavaScripts from an asset server.
+  config.action_controller.asset_host = ENV.fetch("ASSET_HOST", nil)
+
+  # Enforce secure protocol for URL generated by helpers
+  config.action_controller.default_url_options = { protocol: :https }
+
+  if ENV["CORS_HOSTS"].present?
+    config.middleware.insert_before 0, Rack::Cors do
+      allow do
+        origins ENV["CORS_HOSTS"].split(",")
+        resource "*", headers: :any, methods: %i[get]
+      end
+    end
+  end
+end

config/queue.yml

@@ -14,5 +14,8 @@ development:
 test:
   <<: *default
 
+staging:
+  <<: *default
+
 production:
   <<: *default