Disclaimer: I work for Pure Storage, which provides and sells flash storage for enterprise customers. We have a PDS (Portworx Data Services) service that offers stateful services (PostgreSQL, Kafka, Cassandra, MongoDB, Consul, Mysql, Redis, Elasticsearch, Couchbase, RabbitMQ, ZooKeeper) with a single operator for the deployment of all these services. We have a few other operators for backup and operations. All are based on the Portworx Kubernetes storage solution, and PDS will work in a cloud or on-premise Kubernetes cluster.