See these:
→ https://docs.onap.org/en/dublin/submodules/integration.git/docs/docs_scaleout.html?highlight=Scale-out#part-2-scale-out-use-case-instantiation
→ https://docs.onap.org/en/dublin/submodules/integration.git/docs/docs_scaleout.html?highlight=Scale-out#part-3-post-instantiation
→ https://docs.onap.org/en/dublin/submodules/integration.git/docs/docs_scaleout.html?highlight=Scale-out#part-4-running-a-manual-scale-out