Saltize Docker images to fetch
Summary:
The Dwellers list has been established from get-containers-list
for not custom built containers (Discourse, Mastodon).
The Equatower list starts with the Jenkins instance to provision there.
Test Plan:
Tested both on Dwellers (all already present)
and Equatower (images have been successfully fetched).
Reviewers: dereckson
Reviewed By: dereckson
Differential Revision: https://devcentral.nasqueron.org/D1409