When a server is created at runtime, the SSL configuration could be defined with the alter server command in previous versions. In 2.5 this will modify the configuration but it will not create the required OpenSSL objects.
After applying property require_secure_transport="ON" inside mariadb.cnf server not able to connect to Maxscale. Used Maxscale image: mariadb/maxscale:2.5.3-1, Mariadb Server image: mariadb/enterprise-server:10.5.5-3-1
Tested on Topologies:
When property is removed from configuration, it's working fine.