Don't know whether this is specific to openvpn or not
vyos@vyos# sh interfaces openvpn vtun0 openvpn-option openvpn-option "tls-auth /config/auth/tls-auth.key 0" [edit] vyos@vyos# delete interfaces openvpn vtun0 openvpn-option [edit] vyos@vyos# set interfaces openvpn vtun0 openvpn-option "tls-auth /config/auth/tls-auth.key 0" [edit] vyos@vyos# compare No changes between working and active configurations [edit] vyos@vyos# exit Cannot exit: configuration modified. Use 'exit discard' to discard the changes and exit. [edit] vyos@vyos# save Warning: you have uncommitted changes that will not be saved. Saving configuration to '/config/config.boot'... Done [edit] vyos@vyos# compare No changes between working and active configurations [edit] vyos@vyos# commit [edit] vyos@vyos# save Saving configuration to '/config/config.boot'... Done [edit] vyos@vyos# sh interfaces openvpn vtun0 openvpn-option openvpn-option "tls-auth /config/auth/tls-auth.key 0" [edit]