code: func createManager(containerName string) *fs.Manager {
  	allowAllDevices := true
  	return &fs.Manager{
  		Cgroups: &configs.Cgroup{
  			Parent: "/",
  			Name:   containerName,
  			Resources: &configs.Resources{
  				AllowAllDevices: &allowAllDevices,
  			},
  		},
  	}
  }
docs: // Create a cgroup container manager.