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xds: add xDS transport custom Dialer support #7586

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merged 10 commits into from
Sep 27, 2024
Merged

xds: add xDS transport custom Dialer support #7586

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354e088
Dialer method via credentials bundle
danielzhaotongliu Sep 3, 2024
b5d173c
tests for xDS transport custom Dialer via credentials bundle
danielzhaotongliu Sep 7, 2024
d187d39
fix go vet style errors
danielzhaotongliu Sep 9, 2024
6a82444
address review p1: if-compound statement, readability
danielzhaotongliu Sep 11, 2024
ad20fd0
address review p2: add higher level tests
danielzhaotongliu Sep 12, 2024
a8ff4fb
address review p3: remove global test variables & WaitForReady
danielzhaotongliu Sep 17, 2024
3f564dd
address review p4: rephrase comments for ServerConfig.DialerOption me…
danielzhaotongliu Sep 18, 2024
65feb3c
address review p5: embed credentials.Bundle interface in tests
danielzhaotongliu Sep 18, 2024
14cbf57
address review p6: check number of dial options passed to grpc.NewCli…
danielzhaotongliu Sep 18, 2024
5ebc9a7
address review p7: add TODO, use snake_case for JSON annotations
danielzhaotongliu Sep 23, 2024
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address review p5: embed credentials.Bundle interface in tests
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@danielzhaotongliu
danielzhaotongliu committed Sep 18, 2024
commit 65feb3c0088ac9257d2d276d5a9ee2d601d63cd8
15 changes: 2 additions & 13 deletions test/xds/xds_client_custom_dialer_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -57,7 +57,7 @@ func (t *testDialerCredsBuilder) Build(config json.RawMessage) (credentials.Bund
if err := json.Unmarshal(config, &cfg); err != nil {
return nil, func() {}, fmt.Errorf("failed to unmarshal config: %v", err)
}
return &testDialerCredsBundle{t.dialerCalled, cfg.MgmtServerAddress}, func() {}, nil
return &testDialerCredsBundle{insecure.NewBundle(), t.dialerCalled, cfg.MgmtServerAddress}, func() {}, nil
}

func (t *testDialerCredsBuilder) Name() string {
Expand All @@ -68,22 +68,11 @@ func (t *testDialerCredsBuilder) Name() string {
// `credentials` and encapsulates an insecure credential with a custom Dialer
// that specifies how to dial the xDS server.
type testDialerCredsBundle struct {
credentials.Bundle
dialerCalled chan struct{}
mgmtServerAddress string
}

func (t *testDialerCredsBundle) TransportCredentials() credentials.TransportCredentials {
return insecure.NewCredentials()
}

func (t *testDialerCredsBundle) PerRPCCredentials() credentials.PerRPCCredentials {
return nil
}

func (t *testDialerCredsBundle) NewWithMode(string) (credentials.Bundle, error) {
return &testDialerCredsBundle{}, nil
}

// Dialer specifies how to dial the xDS management server.
func (t *testDialerCredsBundle) Dialer(context.Context, string) (net.Conn, error) {
close(t.dialerCalled)
Expand Down
21 changes: 4 additions & 17 deletions xds/internal/xdsclient/transport/transport_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -91,17 +91,13 @@ func (s) TestNewWithGRPCDial(t *testing.T) {

const testDialerCredsBuilderName = "test_dialer_creds"

func init() {
bootstrap.RegisterCredentials(&testDialerCredsBuilder{})
}

// testDialerCredsBuilder implements the `Credentials` interface defined in
// package `xds/bootstrap` and encapsulates an insecure credential with a
// custom Dialer that specifies how to dial the xDS server.
type testDialerCredsBuilder struct{}

func (t *testDialerCredsBuilder) Build(json.RawMessage) (credentials.Bundle, func(), error) {
return &testDialerCredsBundle{}, func() {}, nil
return &testDialerCredsBundle{insecure.NewBundle()}, func() {}, nil
}

func (t *testDialerCredsBuilder) Name() string {
Expand All @@ -111,25 +107,16 @@ func (t *testDialerCredsBuilder) Name() string {
// testDialerCredsBundle implements the `Bundle` interface defined in package
// `credentials` and encapsulates an insecure credential with a custom Dialer
// that specifies how to dial the xDS server.
type testDialerCredsBundle struct{}

func (t *testDialerCredsBundle) TransportCredentials() credentials.TransportCredentials {
return insecure.NewCredentials()
}

func (t *testDialerCredsBundle) PerRPCCredentials() credentials.PerRPCCredentials {
return nil
}

func (t *testDialerCredsBundle) NewWithMode(string) (credentials.Bundle, error) {
return &testDialerCredsBundle{}, nil
type testDialerCredsBundle struct {
credentials.Bundle
}

func (t *testDialerCredsBundle) Dialer(context.Context, string) (net.Conn, error) {
return nil, nil
}

func (s) TestNewWithDialerFromCredentialsBundle(t *testing.T) {
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bootstrap.RegisterCredentials(&testDialerCredsBuilder{})
serverCfg, err := internalbootstrap.ServerConfigForTesting(internalbootstrap.ServerConfigTestingOptions{
URI: "trafficdirector.googleapis.com:443",
ChannelCreds: []internalbootstrap.ChannelCreds{{Type: testDialerCredsBuilderName}},
Expand Down