[th/cloud-setup-azure-fix-gateway]
Probably fixes https://bugzilla.redhat.com/show_bug.cgi?id=1912236
See the logfile from https://bugzilla.redhat.com/show_bug.cgi?id=1912236#c3, that we add a route
platform: (eth0) route: append IPv4 route: type unicast table 30400 0.0.0.0/0 via 0.0.0.1 dev 2 metric 10 mss 0 rt-src user