metadata

type ContainerMetadata interface {
	// GetID returns ID of the container managed by this object
	GetID() string

	// Retrieve loads from DB and returns container data bound to the object
	Retrieve() (*types.ContainerInfo, error)

	// Save allows to create/modify/delete container data bound to the object.
	// Supplied handler gets current ContainerInfo value (nil if doesn't exist) and returns new structure
	// value to be saved or nil to delete. If error value is returned from the handler, the transaction is
	// rolled back and returned error becomes the result of the function
	Save(func(*types.ContainerInfo) (*types.ContainerInfo, error)) error
}

type ContainerStore interface {
	// Container returns interface instance which manages container with given ID
	Container(containerID string) ContainerMetadata

	// ListPodContainers returns a list of containers that belong to the pod with given ID value
	ListPodContainers(podID string) ([]ContainerMetadata, error)

	// ImagesInUse returns a set of images in use by containers in the store.
	// The keys of the returned map are image names and the values are always true.
	ImagesInUse() (map[string]bool, error)
	// Check if a resource setting being updated or not
	ResourceUpdateInProgress(containerID string) (bool, error)
	// Update the vmconfig.ResourceUpdateInProgress flag
	SetResourceUpdateInProgress(containerID string, state bool) error
}

type PodSandboxMetadata interface {
	// GetID returns ID of the pod sandbox managed by this object
	GetID() string

	// Retrieve loads from DB and returns pod sandbox data bound to the object
	Retrieve() (*types.PodSandboxInfo, error)

	// Save allows to create/modify/delete pod sandbox instance bound to the object.
	// Supplied handler gets current PodSandboxInfo value (nil if doesn't exist) and returns new structure
	// value to be saved or nil to delete. If error value is returned from the handler, the transaction is
	// rolled back and returned error becomes the result of the function
	Save(func(*types.PodSandboxInfo) (*types.PodSandboxInfo, error)) error
}

type SandboxStore interface {
	// PodSandbox returns interface instance which manages pod sandbox with given ID
	PodSandbox(podID string) PodSandboxMetadata

	// ListPodSandboxes returns list of pod sandboxes that match given filter
	ListPodSandboxes(filter *types.PodSandboxFilter) ([]PodSandboxMetadata, error)
}

type Store interface {
	SandboxStore
	ContainerStore
	io.Closer
	// Reset the ResourceUpdateInProgress flag when runtime process restarts
	ResetResourceUpdateInProgress() error
}