[ovirt-devel] how to UI/API certificates with a valid one (ex: let's encrypt) ? ( as open shift required one )

Hello community, Would like to use ovirt & openshift, a this might be trivial but I am juste blocked at 'step two'. (As openshift refuse to use the ovirt without valid certificates and the insecure workaround does'not work) I can't find any usefull information to setup the UI/API certificates. ( ex: there is no apache...) Could someone please point me to the correct tuto's or instruction ? With kind regards, Eric