I used the instructions here to setup the an OpenVPN server and everything works nicely. The addition of instructions for PKI on PC instead of the device is a great bonus:)
The things is these do not seem to build any entries in LUCI firewall (except for the WAN:Device allow UDP/PORT) or to LUCI OpenVPN.
I had tried for hours to initially set this up via LUCI but failed.
The weird thing is on my other OpenWRT device running 18.x everything was in LUCI but I don't recall how I had set it up.
Probably too much to ask but would anyone care to explain what matching settings to use within LUCI to match the https://openwrt.org/docs/guide-user/services/vpn/openvpn/basic configuration? Or is it a case that these settings aren't (yet) avail in LUCI?
Not many people mention setup of OpenVPN via the web GUI. Most threads here refer to CLI setup. Now that the thread is in a better location, hopefully others will chime in.
I'm also curious about this. I had thought that perhaps the LUCI interface would reflect the openVPN server I setup via ssh. But that doesn't seem to be the case.
The UCI-based OpenVPN setup is not impossible, however it's typically harder to configure and troubleshoot due to syntax differences and more possibilities to make a mistake.