class Gitlab::QA::Component::Gitlab::Availability

def service_available?
  response = Net::HTTP.start(@uri.host, @uri.port, opts) do |http|
    http.head2(@uri.request_uri)
  end
  response.code.to_i == 200
rescue Errno::ECONNREFUSED, Errno::ECONNRESET, EOFError
  false
end