docs: def launch_cmd(self, n, force):
          """
          Launch the specified docker containers using the main image
          """
          check_permissions()
  
          prefix = self.conf.prefix
          maintag = self.conf.maintag
  
          commandStr = "supervisord -c /etc/supervisor/conf.d/supervisord.conf"
  
          for i in range(1, n+1):
              cName = "{0}-{1}".format(prefix, i)
  
              if self.container_exists(name=cName):
                  if not force:
                      exit("Container with name {0} already "
                           "exists.".format(cName))
                  else:
                      if self.container_running(name=cName):
                          self.stop(cName)
                      self.remove_container(cName, v=True)
  
              c = self.create_container(image=maintag, name=cName,
                                        command=commandStr, volumes=["/bricks"])
              self.start(c['Id'], privileged=True)
              time.sleep(2)  # Wait for container to startup
  
              echo("Launched {0} (Id: {1})".format(cName, c['Id']))
              c = None
              cName = None