libvirt provisioner appears to have a network table size limitation, preventing vcgate and vx nodes from complete provisioning

[ssenator]

"Call to virDomainCreateWithFlags failed: Unable to get index for interface eth0: No such device"

[ssenator]

The bridge-related parameters required the following:

        # # eth2, if it exists, will be the bridged public NIC
        # at this point, use link-local IP address which should be replaced by a bridged dhcp-supplied address
        if manifest[:bridge] then
          override.vm.network "public_network",
                              dev:    manifest[:bridge],
                              bridge: manifest[:bridge],
                              mode:   "bridge",
                              ip:     "169.254.254.169"
        end # manifest[:bridge]