Now that openvswitch installed on the host is required by ovn-kubernetes, bare-metal and ansible-provisioned hosts must also install it like RHCOS does.
openvswitch2.13 can be install on the rhel worker.
but scale up rhel work failed due to ovnkube-node crash. using another bug trace this issue https://bugzilla.redhat.com/show_bug.cgi?id=1882667
Move this bug to 'verified'
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (OpenShift Container Platform 4.6 GA Images), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.