Comment 1 for bug 1744642

Hello! There are OpenStack requirements that define filtering by tags: https://specs.openstack.org/openstack/api-wg/guidelines/tags.html#filtering-and-searching-by-tags

Therefore we use slightly different syntax from other similar fields, i.e. tags=a,b,c or tags-any=a,b,c

You can find more example in the provided document.

Unfortunately only "tags" and "tags-any" filters are supported now by glare API, "not-tags" and "not-tags-any" are not implemented at the moment.