type ContainerManager interface {
	// Runs the container manager's housekeeping.
	// - Ensures that the Docker daemon is in a container.
	// - Creates the system container where all non-containerized processes run.
	Start(NodeConfig) error

	// Returns resources allocated to system containers in the machine.
	// These containers include the system and Kubernetes services.
	SystemContainersLimit() api.ResourceList
}

type NodeConfig struct {
	DockerDaemonContainerName string
	SystemContainerName       string
	KubeletContainerName      string
}