site.rb

require 'net/http'

def denwa
  puts 'DENWA KAKEMASU'
end

def check
  uri = URI.parse ARGV[0]
  http = Net::HTTP.new(uri.host, uri.port)
  code = nil
  http.start{
    res = http.head(uri.path == '' ? '/' : uri.path)
    code = res.code
  }
  code
end

10.times{
  if check() == '200'
    exit
  end
  sleep 10
}

denwa()