demarches-normaliennes/app/controllers/ping_controller.rb

class PingController < ApplicationController
  def index
    Rails.logger.silence do
      if (ActiveRecord::Base.connected?)
        render nothing: true, status: 200, content_type: "application/json"
      else
        render nothing: true, status: 500, content_type: "application/json"
      end
    end
  end
end