Merge pull request #893 from turetske/filter-cache-origins #1

Job	Run time
build-base-image	9m 45s
make-date-tag	1s
build-server-images (cache)	5m 34s
build-server-images (origin)	5m 36s
build-server-images (director)	5m 40s
build-server-images (registry)	5m 54s
build-server-images (osdf-cache)	5m 42s
build-server-images (osdf-origin)	5m 49s
build-server-images (osdf-director)	5m 36s
build-server-images (osdf-registry)	5m 40s
	55m 17s

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