istio.io/istio@v0.0.0-20240520182934-d79c90f27776/pilot/pkg/networking/apigen/apigen_test.go (about)

     1  // Copyright Istio Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package apigen_test
    16  
    17  import (
    18  	"testing"
    19  	"time"
    20  
    21  	"istio.io/istio/pilot/pkg/config/memory"
    22  	"istio.io/istio/pilot/pkg/model"
    23  	"istio.io/istio/pilot/test/xds"
    24  	"istio.io/istio/pkg/config/schema/collections"
    25  	"istio.io/istio/pkg/config/schema/gvk"
    26  )
    27  
    28  // Creates an in-process discovery server, using the same code as Istiod, but
    29  // backed by an in-memory config and endpoint Store.
    30  func initDS(t *testing.T) *xds.FakeDiscoveryServer {
    31  	ds := xds.NewFakeDiscoveryServer(t, xds.FakeOptions{})
    32  	sd := ds.MemRegistry
    33  	sd.AddHTTPService("fortio1.fortio.svc.cluster.local", "10.10.10.1", 8081)
    34  	sd.SetEndpoints("fortio1.fortio.svc.cluster.local", "", []*model.IstioEndpoint{
    35  		{
    36  			Address:         "127.0.0.1",
    37  			EndpointPort:    uint32(14056),
    38  			ServicePortName: "http-main",
    39  		},
    40  	})
    41  	return ds
    42  }
    43  
    44  // Test using resolving DNS over GRPC. This uses XDS protocol, and Listener resources
    45  // to represent the names. The protocol is based on GRPC resolution of XDS resources.
    46  func TestAPIGen(t *testing.T) {
    47  	ds := initDS(t)
    48  
    49  	// Verify we can receive the DNS cluster IPs using XDS
    50  	t.Run("adsc", func(t *testing.T) {
    51  		proxy := &model.Proxy{Metadata: &model.NodeMetadata{
    52  			Generator: "api",
    53  		}}
    54  		adscConn := ds.ConnectUnstarted(ds.SetupProxy(proxy), xds.APIWatches())
    55  		store := memory.Make(collections.Pilot)
    56  		configController := memory.NewController(store)
    57  		adscConn.Store = configController
    58  		err := adscConn.Run()
    59  		if err != nil {
    60  			t.Fatal("ADSC: failed running ", err)
    61  		}
    62  
    63  		_, err = adscConn.WaitVersion(10*time.Second, gvk.ServiceEntry.String(), "")
    64  		if err != nil {
    65  			t.Fatal("Failed to receive lds", err)
    66  		}
    67  
    68  		ses := adscConn.Store.List(gvk.ServiceEntry, "")
    69  		for _, se := range ses {
    70  			t.Log(se)
    71  		}
    72  		sec := adscConn.Store.List(gvk.EnvoyFilter, "")
    73  		for _, se := range sec {
    74  			t.Log(se)
    75  		}
    76  	})
    77  }