Dovecot FTS with Solrcloud

Greetings

We are looking into a solution to set up full text search for our multiple Dovecot instances. According to the Dovecot Wiki, fts_solr is one of the recommended plugins to use.

Since we have more than just a few hundred mailboxes, I guess one Solr instance will not suffice. So I took a look at SolrCloud and set up a small cluster with three nodes and shards. I have no preceding experience with Solr or SolrCloud and now it's not clear to me, how dovecot can interact with this cluster.

Has anyone ever tried to setup dovecot FTS with a SolrCloud cluster and is willing to share his findings?

Regards Patrik