Example 1: Envoy as edge proxy, without a trusted proxy in front of it| www.envoyproxy.io
config.route.v3.RouteConfiguration| www.envoyproxy.io
config.listener.v3.Listener| www.envoyproxy.io
config.core.v3.QuicProtocolOptions| www.envoyproxy.io
config.route.v3.VirtualHost| www.envoyproxy.io