Import BGP routes to UDN when EgressIP is advertised

BGP routes will be imported to the UDN VRF and GR, when EgressIP
for the UDN is advertised to the default VRF. This ensures that the
egress traffic can find the right egress route.

Signed-off-by: Peng Liu <[email protected]>

Author: pliurh

go-controller/pkg/clustermanager/routeadvertisements/controller.go

@@ -714,11 +714,6 @@ func (c *Controller) generateFRRConfiguration(
 			continue
 		}
 
-		// we won't do imports if the pod network is not advertised
-		if !advertisements.Has(ratypes.PodNetwork) {
-			continue
-		}
-
 		// before handling imports, lets normalize the VRF for the default
 		// network: when doing imports, the default VRF is is referred to as
 		// "default" instead of ""

go-controller/pkg/clustermanager/routeadvertisements/controller_test.go

@@ -551,7 +551,8 @@ func TestController_reconcile(t *testing.T) {
 					Routers: []*testRouter{
 						{ASN: 1, VRF: "red", Prefixes: []string{"1.0.1.3/32", "172.100.0.16/32"}, Neighbors: []*testNeighbor{
 							{ASN: 1, Address: "1.0.0.100", Advertise: []string{"1.0.1.3/32", "172.100.0.16/32"}},
-						}},
+						}, Imports: []string{"blue"}},
+						{ASN: 1, VRF: "blue", Imports: []string{"red"}},
 					}},
 			},
 			expectNADAnnotations: map[string]map[string]string{"blue": {types.OvnRouteAdvertisementsKey: "[\"ra\"]"}},