fail to create RHV 4.13.0-rc.7 IPI cluster as apiVIP and ingressVIP are not in machine networks

# ./openshift-install create install-config --dir test
? SSH Public Key /root/.ssh/id_rsa.pub
? Platform ovirt
? Cluster TestEnvironmentCluster
? Storage domain 0pnq2-test-vm-storage8
? Network ovirtmgmt
? VNIC Profile ovirtmgmt
X Sorry, your reply was invalid: IP expected to be in one of the machine networks: 10.0.0.0/16
? Internal API virtual IP [? for help] 192.168.1.10


As the user could not define cidr for machineNetwork when creating the cluster or install-config file interactively, it will use default value 10.0.0.0/16, so fail to create the cluster ot install-config when inputting apiVIP and ingressVIP outside of default machinenNetwork.

This was already reported for vSphere and Nutanix here: https://issues.redhat.com/browse/OCPBUGS-7015 

However it seems that the RHV platform is also affected by this issue. 

# ./openshift-install version
./openshift-install 4.13.0-rc.7
built from commit 3e0b2a2ec26d9ffcca34b361896418499ad9d603
release image quay.io/openshift-release-dev/ocp-release@sha256:aae5131ec824c301c11d0bf11d81b3996a222be8b49ce4716e9d464229a2f92b
release architecture amd64

Always

1. create install-config.yaml file by running command "./openshift-install create install-config --dir ipi"
2. failed with above error

fail to create install-config.yaml file

succeed to create install-config.yaml file

 The current workaround is to use dummy VIPs from 10.0.0.0/16 machinenetwork to create the install-config first and then modify the machinenetwork and VIPs as per your requirement which is overhead and creates a negative experience.