the_service.rb

#/spec/support/the_service.rb

class TheServiceControl
#....
    def start
      return unless @pid.nil?
      puts "TheService starting. "
      env = config['rails']['env']
      cmd = "go run #{config['rails']['main_go']} --config.file=#{config_path}"
      puts cmd #useful for debug when need run project manually
      #compile and run
      Dir.chdir(File.dirname(config['rails']['main_go'])) {
        @pid = Process.spawn(env, cmd, pgroup: true)
      }
      #wait until it ready to accept connections
      VCR.configure { |c| c.allow_http_connections_when_no_cassette = true }
      1.upto(10) do
        response = HTTParty.get("http://#{host}/monitor") rescue nil
        break if response.try(:code) == 200
        sleep(1)
      end
      VCR.configure { |c| c.allow_http_connections_when_no_cassette = false }
      puts "TheService started. PID: #{@pid}"
    end
#....
end