DOKK / manpages / debian 11 / umoci / umoci-gc.1.en
umoci-gc(1)(#) - umoci-gc(1)(#)
Aleksa Sarai DECEMBER 2016

umoci gc - Garbage collects all unreferenced OCI image blobs

umoci gc --layout=image

Conduct a mark-and-sweep garbage collection of the provided OCI image, only retaining blobs which can be reached by a descriptor path from the root set of tags. All other blobs will be removed.

The global options are defined in umoci(1).

--layout=image
The OCI image layout to be garbage collected. image must be a path to a
valid OCI image.

The following deletes a tag from an OCI image and clean conducts a garbage collection in order to clean up the remaining unused blobs.

% umoci rm --image image:sometag
% umoci gc --layout image

umoci(1), umoci-remove(1)

umoci gc