Cappl 391 wire in workflow registry

core/capabilities/don_notifier.go

@@ -0,0 +1,43 @@
+package capabilities
+
+import (
+	"context"
+	"sync"
+
+	"github.com/smartcontractkit/chainlink-common/pkg/capabilities"
+)
+
+type DonNotifier struct {
+	mu       sync.Mutex
+	don      capabilities.DON
+	notified bool
+	ch       chan struct{}
+}
+
+func NewDonNotifier() *DonNotifier {
+	return &DonNotifier{
+		ch: make(chan struct{}),
+	}
+}
+
+func (n *DonNotifier) NotifyDonSet(don capabilities.DON) {
+	n.mu.Lock()
+	defer n.mu.Unlock()
+	if !n.notified {
+		n.don = don
+		n.notified = true
+		close(n.ch)
+	}
+}
+
+func (n *DonNotifier) WaitForDon(ctx context.Context) (capabilities.DON, error) {
+	select {
+	case <-ctx.Done():
+		return capabilities.DON{}, ctx.Err()
+	case <-n.ch:
+	}
+	<-n.ch
+	n.mu.Lock()
+	defer n.mu.Unlock()
+	return n.don, nil
+}

core/capabilities/don_notifier_test.go

@@ -0,0 +1,49 @@
+package capabilities_test
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+
+	commoncap "github.com/smartcontractkit/chainlink-common/pkg/capabilities"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/smartcontractkit/chainlink/v2/core/capabilities"
+)
+
+func TestDonNotifier_WaitForDon(t *testing.T) {
+	notifier := capabilities.NewDonNotifier()
+	don := commoncap.DON{
+		ID: 1,
+	}
+
+	go func() {
+		time.Sleep(100 * time.Millisecond)
+		notifier.NotifyDonSet(don)
+	}()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
+	defer cancel()
+
+	result, err := notifier.WaitForDon(ctx)
+	require.NoError(t, err)
+	assert.Equal(t, don, result)
+
+	result, err = notifier.WaitForDon(ctx)
+	require.NoError(t, err)
+	assert.Equal(t, don, result)
+}
+
+func TestDonNotifier_WaitForDon_ContextTimeout(t *testing.T) {
+	notifier := capabilities.NewDonNotifier()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 20*time.Millisecond)
+	defer cancel()
+
+	_, err := notifier.WaitForDon(ctx)
+	require.Error(t, err)
+	assert.Equal(t, context.DeadlineExceeded, err)
+}

core/capabilities/launcher.go

@@ -43,11 +43,12 @@ var defaultStreamConfig = p2ptypes.StreamConfig{
 
 type launcher struct {
 	services.StateMachine
-	lggr        logger.Logger
-	peerWrapper p2ptypes.PeerWrapper
-	dispatcher  remotetypes.Dispatcher
-	registry    *Registry
-	subServices []services.Service
+	lggr                logger.Logger
+	peerWrapper         p2ptypes.PeerWrapper
+	dispatcher          remotetypes.Dispatcher
+	registry            *Registry
+	subServices         []services.Service
+	workflowDonNotifier donNotifier
 }
 
 func unmarshalCapabilityConfig(data []byte) (capabilities.CapabilityConfiguration, error) {
@@ -86,18 +87,24 @@ func unmarshalCapabilityConfig(data []byte) (capabilities.CapabilityConfiguratio
 	}, nil
 }
 
+type donNotifier interface {
+	NotifyDonSet(don capabilities.DON)
+}
+
 func NewLauncher(
 	lggr logger.Logger,
 	peerWrapper p2ptypes.PeerWrapper,
 	dispatcher remotetypes.Dispatcher,
 	registry *Registry,
+	workflowDonNotifier donNotifier,
 ) *launcher {
 	return &launcher{
-		lggr:        lggr.Named("CapabilitiesLauncher"),
-		peerWrapper: peerWrapper,
-		dispatcher:  dispatcher,
-		registry:    registry,
-		subServices: []services.Service{},
+		lggr:                lggr.Named("CapabilitiesLauncher"),
+		peerWrapper:         peerWrapper,
+		dispatcher:          dispatcher,
+		registry:            registry,
+		subServices:         []services.Service{},
+		workflowDonNotifier: workflowDonNotifier,
 	}
 }
 
@@ -215,6 +222,8 @@ func (w *launcher) Launch(ctx context.Context, state *registrysyncer.LocalRegist
 			return errors.New("invariant violation: node is part of more than one workflowDON")
 		}
 
+		w.workflowDonNotifier.NotifyDonSet(myDON.DON)
+
 		for _, rcd := range remoteCapabilityDONs {
 			err := w.addRemoteCapabilities(ctx, myDON, rcd, state)
 			if err != nil {

core/capabilities/launcher_test.go

@@ -33,6 +33,12 @@ import (
 
 var _ capabilities.TriggerCapability = (*mockTrigger)(nil)
 
+type mockDonNotifier struct {
+}
+
+func (m *mockDonNotifier) NotifyDonSet(don capabilities.DON) {
+}
+
 type mockTrigger struct {
 	capabilities.CapabilityInfo
 }
@@ -196,6 +202,7 @@ func TestLauncher(t *testing.T) {
 			wrapper,
 			dispatcher,
 			registry,
+			&mockDonNotifier{},
 		)
 
 		dispatcher.On("SetReceiver", fullTriggerCapID, dID, mock.AnythingOfType("*remote.triggerPublisher")).Return(nil)
@@ -305,6 +312,7 @@ func TestLauncher(t *testing.T) {
 			wrapper,
 			dispatcher,
 			registry,
+			&mockDonNotifier{},
 		)
 
 		err = launcher.Launch(ctx, state)
@@ -409,6 +417,7 @@ func TestLauncher(t *testing.T) {
 			wrapper,
 			dispatcher,
 			registry,
+			&mockDonNotifier{},
 		)
 
 		err = launcher.Launch(ctx, state)
@@ -600,6 +609,7 @@ func TestLauncher_RemoteTriggerModeAggregatorShim(t *testing.T) {
 		wrapper,
 		dispatcher,
 		registry,
+		&mockDonNotifier{},
 	)
 
 	dispatcher.On("SetReceiver", fullTriggerCapID, capDonID, mock.AnythingOfType("*remote.triggerSubscriber")).Return(nil)
@@ -752,6 +762,7 @@ func TestSyncer_IgnoresCapabilitiesForPrivateDON(t *testing.T) {
 		wrapper,
 		dispatcher,
 		registry,
+		&mockDonNotifier{},
 	)
 
 	// If the DON were public, this would fail with two errors:
@@ -917,6 +928,7 @@ func TestLauncher_WiresUpClientsForPublicWorkflowDON(t *testing.T) {
 		wrapper,
 		dispatcher,
 		registry,
+		&mockDonNotifier{},
 	)
 
 	dispatcher.On("SetReceiver", fullTriggerCapID, capDonID, mock.AnythingOfType("*remote.triggerSubscriber")).Return(nil)
@@ -1082,6 +1094,7 @@ func TestLauncher_WiresUpClientsForPublicWorkflowDONButIgnoresPrivateCapabilitie
 		wrapper,
 		dispatcher,
 		registry,
+		&mockDonNotifier{},
 	)
 
 	dispatcher.On("SetReceiver", fullTriggerCapID, triggerCapDonID, mock.AnythingOfType("*remote.triggerSubscriber")).Return(nil)
@@ -1232,6 +1245,7 @@ func TestLauncher_SucceedsEvenIfDispatcherAlreadyHasReceiver(t *testing.T) {
 		wrapper,
 		dispatcher,
 		registry,
+		&mockDonNotifier{},
 	)
 
 	err = launcher.Launch(ctx, state)

core/services/chainlink/application.go

@@ -20,6 +20,7 @@ import (
 	"go.uber.org/multierr"
 	"go.uber.org/zap/zapcore"
 
+	"github.com/smartcontractkit/chainlink-common/pkg/custmsg"
 	"github.com/smartcontractkit/chainlink-common/pkg/loop"
 	commonservices "github.com/smartcontractkit/chainlink-common/pkg/services"
 	"github.com/smartcontractkit/chainlink-common/pkg/sqlutil"
@@ -33,6 +34,7 @@ import (
 	gatewayconnector "github.com/smartcontractkit/chainlink/v2/core/capabilities/gateway_connector"
 	"github.com/smartcontractkit/chainlink/v2/core/capabilities/remote"
 	remotetypes "github.com/smartcontractkit/chainlink/v2/core/capabilities/remote/types"
+	"github.com/smartcontractkit/chainlink/v2/core/capabilities/webapi"
 	"github.com/smartcontractkit/chainlink/v2/core/chains/evm/logpoller"
 	"github.com/smartcontractkit/chainlink/v2/core/chains/evm/txmgr"
 	evmtypes "github.com/smartcontractkit/chainlink/v2/core/chains/evm/types"
@@ -48,6 +50,8 @@ import (
 	"github.com/smartcontractkit/chainlink/v2/core/services/feeds"
 	"github.com/smartcontractkit/chainlink/v2/core/services/fluxmonitorv2"
 	"github.com/smartcontractkit/chainlink/v2/core/services/gateway"
+	capabilities2 "github.com/smartcontractkit/chainlink/v2/core/services/gateway/handlers/capabilities"
+	common2 "github.com/smartcontractkit/chainlink/v2/core/services/gateway/handlers/common"
 	"github.com/smartcontractkit/chainlink/v2/core/services/headreporter"
 	"github.com/smartcontractkit/chainlink/v2/core/services/job"
 	"github.com/smartcontractkit/chainlink/v2/core/services/keeper"
@@ -71,6 +75,7 @@ import (
 	"github.com/smartcontractkit/chainlink/v2/core/services/webhook"
 	"github.com/smartcontractkit/chainlink/v2/core/services/workflows"
 	workflowstore "github.com/smartcontractkit/chainlink/v2/core/services/workflows/store"
+	"github.com/smartcontractkit/chainlink/v2/core/services/workflows/syncer"
 	"github.com/smartcontractkit/chainlink/v2/core/sessions"
 	"github.com/smartcontractkit/chainlink/v2/core/sessions/ldapauth"
 	"github.com/smartcontractkit/chainlink/v2/core/sessions/localauth"
@@ -212,6 +217,17 @@ func NewApplication(opts ApplicationOpts) (Application, error) {
 		opts.CapabilitiesRegistry = capabilities.NewRegistry(globalLogger)
 	}
 
+	var gatewayConnectorWrapper *gatewayconnector.ServiceWrapper
+	if cfg.Capabilities().GatewayConnector().DonID() != "" {
+		globalLogger.Debugw("Creating GatewayConnector wrapper", "donID", cfg.Capabilities().GatewayConnector().DonID())
+		gatewayConnectorWrapper = gatewayconnector.NewGatewayConnectorServiceWrapper(
+			cfg.Capabilities().GatewayConnector(),
+			keyStore.Eth(),
+			clockwork.NewRealClock(),
+			globalLogger)
+		srvcs = append(srvcs, gatewayConnectorWrapper)
+	}
+
 	var externalPeerWrapper p2ptypes.PeerWrapper
 	if cfg.Capabilities().Peering().Enabled() {
 		var dispatcher remotetypes.Dispatcher
@@ -256,32 +272,78 @@ func NewApplication(opts ApplicationOpts) (Application, error) {
 				return nil, fmt.Errorf("could not configure syncer: %w", err)
 			}
 
+			workflowDonNotifier := capabilities.NewDonNotifier()
+
 			wfLauncher := capabilities.NewLauncher(
 				globalLogger,
 				externalPeerWrapper,
 				dispatcher,
 				opts.CapabilitiesRegistry,
+				workflowDonNotifier,
 			)
 			registrySyncer.AddLauncher(wfLauncher)
 
 			srvcs = append(srvcs, wfLauncher, registrySyncer)
+
+			if cfg.Capabilities().WorkflowRegistry().Address() != "" {
+				if gatewayConnectorWrapper == nil {
+					return nil, errors.New("unable to create workflow registry syncer without gateway connector")
+				}
+
+				err = keyStore.Workflow().EnsureKey(context.Background())
+				if err != nil {
+					return nil, fmt.Errorf("failed to ensure workflow key: %w", err)
+				}
+
+				keys, err := keyStore.Workflow().GetAll()
+				if err != nil {
+					return nil, fmt.Errorf("failed to get all workflow keys: %w", err)
+				}
+				if len(keys) != 1 {
+					return nil, fmt.Errorf("expected 1 key, got %d", len(keys))
+				}
+
+				connector := gatewayConnectorWrapper.GetGatewayConnector()
+				webAPILggr := globalLogger.Named("WebAPITarget")
+
+				webAPIConfig := webapi.ServiceConfig{
+					RateLimiter: common2.RateLimiterConfig{
+						GlobalRPS:      100.0,
+						GlobalBurst:    100,
+						PerSenderRPS:   100.0,
+						PerSenderBurst: 100,
+					},
+				}
+
+				outgoingConnectorHandler, err := webapi.NewOutgoingConnectorHandler(connector,
+					webAPIConfig,
+					capabilities2.MethodWebAPITarget, webAPILggr)
+				if err != nil {
+					return nil, fmt.Errorf("could not create outgoing connector handler: %w", err)
+				}
+
+				eventHandler := syncer.NewEventHandler(globalLogger, syncer.NewWorkflowRegistryDS(opts.DS, globalLogger), syncer.NewFetcherFunc(globalLogger, outgoingConnectorHandler), workflowstore.NewDBStore(opts.DS, globalLogger, clockwork.NewFakeClock()), opts.CapabilitiesRegistry,
+					custmsg.NewLabeler(), clockwork.NewRealClock(), keys[0])
+
+				loader := syncer.NewWorkflowRegistryContractLoader(cfg.Capabilities().WorkflowRegistry().Address(), func(ctx context.Context, bytes []byte) (syncer.ContractReader, error) {
+					return relayer.NewContractReader(ctx, bytes)
+				}, eventHandler)
+
+				wfSyncer := syncer.NewWorkflowRegistry(globalLogger, func(ctx context.Context, bytes []byte) (syncer.ContractReader, error) {
+					return relayer.NewContractReader(ctx, bytes)
+				}, cfg.Capabilities().WorkflowRegistry().Address(),
+					syncer.WorkflowEventPollerConfig{
+						QueryCount: 100,
+					}, eventHandler, loader, workflowDonNotifier)
+
+				srvcs = append(srvcs, wfSyncer)
+			}
 		}
 	} else {
 		globalLogger.Debug("External registry not configured, skipping registry syncer and starting with an empty registry")
 		opts.CapabilitiesRegistry.SetLocalRegistry(&capabilities.TestMetadataRegistry{})
 	}
 
-	var gatewayConnectorWrapper *gatewayconnector.ServiceWrapper
-	if cfg.Capabilities().GatewayConnector().DonID() != "" {
-		globalLogger.Debugw("Creating GatewayConnector wrapper", "donID", cfg.Capabilities().GatewayConnector().DonID())
-		gatewayConnectorWrapper = gatewayconnector.NewGatewayConnectorServiceWrapper(
-			cfg.Capabilities().GatewayConnector(),
-			keyStore.Eth(),
-			clockwork.NewRealClock(),
-			globalLogger)
-		srvcs = append(srvcs, gatewayConnectorWrapper)
-	}
-
 	// LOOPs can be created as options, in the  case of LOOP relayers, or
 	// as OCR2 job implementations, in the case of Median today.
 	// We will have a non-nil registry here in LOOP relayers are being used, otherwise

core/services/registrysyncer/syncer.go

@@ -68,6 +68,10 @@
 	defaultTickInterval = 12 * time.Second
 )
 
+type donIDSetNotifier interface {
+	NotifyDonIDSet()
+}
+
 // New instantiates a new RegistrySyncer
 func New(
 	lggr logger.Logger,