umoci-gc - Man Page

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(1), umoci-remove(1), umoci-repack(1).