So far, Percona Kubernetes Operator for Percona Server for MongoDB (PSMDB) has supported only managing replica sets, but from version 1.6.0 it is possible to start a sharding cluster, although at the moment only with one shard. This is a step toward supporting full sharding, with multiple shards being added in a future release. Components [&]

https://www.percona.com/blog/2021/01/06/one-shard-support-in-kubernetes-operator-for-percona-server-for-mongodb/