fix(tests): invalidates discovery to process our CRDs

tests/integration/servicemesh/main_test.go

@@ -25,16 +25,13 @@ import (
 	"istio.io/istio/tests/integration/servicemesh/maistra"
 )
 
-var i istio.Instance
-
 func TestMain(m *testing.M) {
 	// do not change order of setup functions
 	// nolint: staticcheck
 	framework.
 		NewSuite(m).
-		RequireMaxClusters(1).
 		Setup(maistra.ApplyServiceMeshCRDs).
-		Setup(istio.Setup(&i, nil)).
+		Setup(istio.Setup(nil, nil)).
 		Setup(maistra.Install).
 		Run()
 }

tests/integration/servicemesh/maistra/maistra.go

@@ -47,6 +47,7 @@ func ApplyServiceMeshCRDs(ctx resource.Context) (err error) {
 	if err != nil {
 		return fmt.Errorf("cannot read maistra CRD YAMLs: %s", err)
 	}
+
 	for _, c := range ctx.Clusters().Kube().Primaries() {
 		for _, crd := range crds {
 			// we need to manually Create() the CRD because Apply() wants to write its content into an annotation which fails because of size limitations
@@ -65,6 +66,8 @@ func ApplyServiceMeshCRDs(ctx resource.Context) (err error) {
 				}
 			}
 		}
+
+		c.InvalidateDiscovery()
 	}
 	return err
 }