Comment 8 for bug 1657305

In the scope of the percona-charm, we see two problems:

a) the network space binding for the cluster relation is not being used for the local wsrep address for mysql (although the cluster relation space binding is used to build the list of hosts participating in the cluster). This might not actually impact function

b) for the db and db-admin relations, network space binding is not supported - however this is relatively easy to switch based on the fact that the shared-db relation already dtrt.