Unfortunately, the operator test is a failure due to the lack of configuration possibility
- non blocker, the init containers are OOMkilled during the start, it can be solved by editing the cassandra statefulset created by the operator to extend the limits
- blocker, it's not possible to configure the commitlog_directory explicitly. it's by default on /var/lib/cassandra/commitlog
- it's not easy to propagate the host mounts to use 2 mountpoints /srv/cassandra and /srv/cassandra/commitlog without tweaking the kernel / rancher configuration
- it's not possible to add a second volume on the pod description created by the operator