I'm using a "Found Elasticsearch" instance on Heroku. While I was setting up, I created and loaded my indexes under one application (foo), which was my "staging" environment. Now that everything is set up, I would like to migrate that Elasticsearch index to another application (bar) which is my "production" environment. (I really don't want to go through several days of re-loading data.)
I can set up cross-app conversation by setting the FOUNDELASTICSEARCH_URL setting in "bar", but I would like to move the "ownership" of the index for accounting and safety purposes.