For production use, it is recommended to select a specific release tag as shown in the examples. Run up a container named mysql.1 from the docker image jdeathe/centos-ssh-mysql on port 3306 of your ...
Galera Cluster does not work with MyISAM or similar nontransactional storage engines, only InnoDB is supported. This means that MariaDB system tables are not replicated (e.g. mysql.users is not).