Does anyone have this working? The latest OMV5 version (5.2.5-1 Usul) no longer has a GUI to launch Docker images - the new way is via Portainer. So the howto's out there no longer seem to 'work'.
I created a macvlan in portainer and then added port declarations, volumes, environment variables and set policy and also tried enabling NET_ADMIN capability but am stuck; this is the error message: failed to create the macvlan port: operation not supported.