mariadb ssl_rsa_setup maintenance tool with galera option would accelerate tls deployment on galera cluster
mariadb is supporting tls encryption in client - server channels
as well in mariadb galera cluster.
Deployment of ssl however requires more steps and it would be useful to have
mariadb_ssl_rsa_setup tool to accelerate it and avoid miss configuration errors.
tool may generate client and server certification files and keys
export them optionally to the server or cluster nodes /etc/mysql/certification dir(s)
with appropriate ownership and permissions
and prepare optionally server or cluster nodes configuration files .
galera node server.cnf