It seems long history figure.
https://review.openstack.org/gitweb?p=openstack/operations-guide.git;a=blob;f=doc/openstack-ops/figures/osog_0001.png;h=fb2089a4ffe5eb66a1402b3958043d7d7a069486;hb=83e8c0d766ec157dfd0edb02d264f126c9a3016a
It seems long history figure.
https:/ /review. openstack. org/gitweb? p=openstack/ operations- guide.git; a=blob; f=doc/openstack -ops/figures/ osog_0001. png;h=fb2089a4f fe5eb66a1402b39 58043d7d7a06948 6;hb=83e8c0d766 ec157dfd0edb02d 264f126c9a3016a