class PingController < ApplicationController def index Rails.logger.silence do status_code = if Rails.root.join("maintenance").file? # See https://cbonte.github.io/haproxy-dconv/2.0/configuration.html#4.2-http-check%20disable-on-404 :not_found elsif (ActiveRecord::Base.connection.execute('select 1 as test;').first['test'] == 1) :ok else :internal_server_error end head status_code, content_type: "application/json" end end end