repmgrd not working on Geo secondary
repmgr needs write access to a database instance in order to manage the node.
Currently, this doesn't work on the Geo secondary as it is read only.
Investigate ways of making this work.
In theory, running the secondary as a separate cluster could work if postgresql allows a read only db alongside a read write db.
As an alternative, we could investigate utilizing repmgr's cascading replication support to work