Secure CouchDB Replication Using SSH on a VPS

I was reading this post in digitalocean titled How To Secure MySQL Replication Using SSH on a VPS about “Using SSH tunneling MySQL replication data can be transferred through the SSH connection”.

And was wondering if is a bad idea to do the same with CouchDB. Would that even work? Does it have to be a bidirectional ssh tunnel because CouchDB has multi-master sync ? Are there any security issues ? I’m not considering a private network because droplets would be in different regions. Maybe the right approach is to build a VPN, but I would still like know your opinions about the ssh tunnel.

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Maybe this is unnecessary thanks to DO cloud firewall which would allow to limit incoming connections to the ip of the other droplets. Plus using https.