preserve appropriate header matching when creating the virtualservice (…

…#1350)

Co-authored-by: dprotaso <[email protected]>

pkg/reconciler/ingress/resources/virtual_service.go

@@ -260,16 +260,14 @@ func makeMatch(host, path string, headers map[string]v1alpha1.HeaderMatch, gatew
 		}
 	}
 
+	match.Headers = make(map[string]*istiov1beta1.StringMatch, len(headers))
 	for k, v := range headers {
-		match.Headers = map[string]*istiov1beta1.StringMatch{
-			k: {
-				MatchType: &istiov1beta1.StringMatch_Exact{
-					Exact: v.Exact,
-				},
+		match.Headers[k] = &istiov1beta1.StringMatch{
+			MatchType: &istiov1beta1.StringMatch_Exact{
+				Exact: v.Exact,
 			},
 		}
 	}
-
 	return match
 }
 

pkg/reconciler/ingress/resources/virtual_service_test.go

@@ -212,7 +212,6 @@ func TestMakeVirtualServices_CorrectMetadata(t *testing.T) {
 }
 
 func TestMakeVirtualServicesSpec_CorrectGateways(t *testing.T) {
-
 	tests := []struct {
 		name             string
 		ingress          *v1alpha1.Ingress
@@ -640,6 +639,9 @@ func TestMakeVirtualServiceRoute_Vanilla(t *testing.T) {
 			"my-header": {
 				Exact: "my-header-value",
 			},
+			"my-second-header": {
+				Exact: "my-second-header-value",
+			},
 		},
 		Splits: []v1alpha1.IngressBackendSplit{{
 			IngressBackend: v1alpha1.IngressBackend{
@@ -664,6 +666,11 @@ func TestMakeVirtualServiceRoute_Vanilla(t *testing.T) {
 						Exact: "my-header-value",
 					},
 				},
+				"my-second-header": {
+					MatchType: &istiov1beta1.StringMatch_Exact{
+						Exact: "my-second-header-value",
+					},
+				},
 			},
 		}, {
 			Gateways: []string{"gateway-1"},
@@ -676,6 +683,11 @@ func TestMakeVirtualServiceRoute_Vanilla(t *testing.T) {
 						Exact: "my-header-value",
 					},
 				},
+				"my-second-header": {
+					MatchType: &istiov1beta1.StringMatch_Exact{
+						Exact: "my-second-header-value",
+					},
+				},
 			},
 		}},
 		Route: []*istiov1beta1.HTTPRouteDestination{{