What is the correct/ideal way to add smb & nfs shares into portainer?

I currently have one smb share marked as a volume in portainer but given that the password is in plain text inside of portainer this seems like a bad idea.

So what is the best way to add them into portainer and to make use of them? So far the SMB share I did add works for some containers and others get permission errors with the same puid and pgid as the ones that are working. I set umask to 002 also.