Comment 3 for bug 1765722

john, the percona-cluster charm has been storing the password in the "mysql.passwd" key for a long time, I could find mentions of this key in relation-set/leader-set related code in 2015 -> https://github.com/openstack/charm-percona-cluster/commit/5e4fdcb35a1f28e1f25cbbcce2f90d2d5875b3da

I've never seen the juju tools complain about dots in keys