Much work.

config/environments/production.rb

@@ -87,4 +87,18 @@ Rails.application.configure do
   #
   # Skip DNS rebinding protection for the default health check endpoint.
   # config.host_authorization = { exclude: ->(request) { request.path == "/up" } }
+
+  # Docker Compose friendly settings
+  config.log_level = :info
+  config.log_tags = [ :request_id ]
+
+  # Log to stdout for Docker container logging
+  if ENV["RAILS_LOG_TO_STDOUT"].present?
+    logger           = ActiveSupport::Logger.new(STDOUT)
+    logger.formatter = config.log_formatter
+    config.logger    = ActiveSupport::TaggedLogging.new(logger)
+  end
+
+  # Serve static files (Docker Compose deployments typically don't have a separate web server)
+  config.public_file_server.enabled = true
 end