New creates a fresh instance of the Controller component, ready to register to a GRPC server.

ErrCapacityRangeNotProvided is returned if no capacity range was provided.

ErrNameNotProvided is returned if no name was provided.

ErrQueryingIPAddressesFailed is returned whenever we actually receive a storage server interface from the Engine, but that has no IP addresses.

ErrVolumeCapabilitiesNotProvided is returned if volumes capabilities haven't been set.

ErrVolumeCapabilitiesNotSupported is returned if set volume capabilities are not supported.

ErrVolumeCapabilityBlockNotSupported is returned if volume capabilities have been set to unsupported block mode.

ErrVolumeIDNotProvided is returned if no volume id was provided.

ErrVolumeWithSameNameButDifferentSizeAlreadyExists is returned if a volume with the same name but different size already exists.