FRR supports configuring either network prefixes per area, or assign an interface to an area to participate in the routing process.
This is already well known from other venders and supported by FRR.
A valid VyOS OSPF configuration would then look like:
vyos@vyos# show protocols ospf { interface dum0 { area 0 } interface eth0.201 { area 0 authentication { md5 { key-id 10 { md5-key vyos } } } dead-interval 40 hello-interval 10 priority 1 retransmit-interval 5 transmit-delay 1 } log-adjacency-changes { detail } parameters { abr-type cisco router-id 172.18.254.201 } passive-interface default passive-interface-exclude eth0.201 }
Updated documentation: https://github.com/vyos/vyos-documentation/commit/0a3b780c296c13d485a43a5ba2e1c2005d19d678