old_contents: from lab.providers import Provider
  
  
  class ProviderExistingOSP7(Provider):
      """Creates servers from base hardware lab config
      """
  
      def sample_config(self):
          return {'hardware-lab-config': 'g10.yaml'}
  
      def __init__(self, config):
          from netaddr import IPNetwork
          from lab.server import Server
  
          super(ProviderExistingOSP7, self).__init__(config=config)
  
          lab_cfg = self.read_config_from_file(config_path=config['hardware-lab-config'])
          user_net = IPNetwork(lab_cfg['nets']['user']['cidr'])
          self.servers = [Server(ip=str(user_net[lab_cfg['nodes']['director']['ip-shift'][0]]), username='root', password='cisco123')]
  
      def create_servers(self):
          return self.servers
  
      def wait_for_servers(self):
          servers = self.create_servers()
          for server in servers:
              server.hostname = server.run(command='hostname')
              server.ip_mac = server.run(command='iface=$(ip -o address | grep {0} | cut -f2 -d " "); ip -o link | grep $iface | cut -f18 -d " "'.format(server.ip))
          return servers
  
new_contents: from lab.providers import Provider
  
  
  class ProviderExistingOSP7(Provider):
      """Creates servers from base hardware lab config
      """
  
      def sample_config(self):
          return {'hardware-lab-config': 'g10.yaml'}
  
      def __init__(self, config):
          from lab.laboratory import Laboratory
  
          super(ProviderExistingOSP7, self).__init__(config=config)
  
          director = Laboratory(config_path=config['hardware-lab-config']).director()
          self.servers = [director]
  
      def create_servers(self):
          return self.servers
  
      def wait_for_servers(self):
          servers = self.create_servers()
          for server in servers:
              server.hostname = server.run(command='hostname')
              server.ip_mac = server.run(command='iface=$(ip -o address | grep {0} | cut -f2 -d " "); ip -o link | grep $iface | cut -f18 -d " "'.format(server.ip))
          return servers
  
subject: switch ProviderExistingOSP7 to use Laboratory class