FABN-864 Discovery support in fabric-network api

Enhance the fabric-network API to use service discovery by
default when initializing the channel.
Add option to disable it and option to translate discovered
endpoints to localhost

Change-Id: I9a81b87751b40dd125a9989f831760950d00c826
Signed-off-by: andrew-coleman <[email protected]>

fabric-client/lib/Client.js

@@ -1048,7 +1048,6 @@ const Client = class extends BaseClient {
 				throw new Error('Missing "chaincodePath" parameter in the proposal request');
 			}
 
-			console.log('request.targets', request.targets);
 			let peers = this.getTargetPeers(request.targets);
 			if (!peers && request.channelNames) {
 				peers = this.getPeersForOrgOnChannel(request.channelNames);

fabric-network/lib/gateway.js

@@ -57,6 +57,10 @@ class Gateway {
 			eventHandlerOptions: {
 				commitTimeout: 300, // 5 minutes
 				strategy: EventStrategies.MSPID_SCOPE_ALLFORTX
+			},
+			discovery: {
+				enabled: true,
+				asLocalhost: false
 			}
 		};
 	}
@@ -130,7 +134,7 @@ class Gateway {
 		}
 
 		Gateway._mergeOptions(this.options, options);
-		logger.debug('connection options: %O', options);
+		logger.debug('connection options: %j', options);
 
 		if (!(config instanceof Client)) {
 			// still use a ccp for the discovery peer and ca information
@@ -142,6 +146,12 @@ class Gateway {
 			this.client = config;
 		}
 
+		if(this.options.discovery && this.options.discovery.enabled) {
+			this.client.setConfigSetting('initialize-with-discovery', true);
+		} else {
+			this.client.setConfigSetting('initialize-with-discovery', false);
+		}
+
 		// setup an initial identity for the Gateway
 		if (options.identity) {
 			logger.debug('%s - setting identity', method);
@@ -163,7 +173,7 @@ class Gateway {
 			try {
 				this.queryHandlerClass = require(this.options.queryHandler);
 			} catch(error) {
-				logger.error('%s - unable to load provided query handler: %s. Error %O', method, this.options.queryHandler, error);
+				logger.error('%s - unable to load provided query handler: %s. Error %j', method, this.options.queryHandler, error);
 				throw new Error(`unable to load provided query handler: ${this.options.queryHandler}. Error ${error}`);
 			}
 		}
@@ -231,7 +241,7 @@ class Gateway {
 		logger.debug('getNetwork: create network object and initialize');
 		const channel = this.client.getChannel(networkName);
 		const newNetwork = new Network(this, channel);
-		await newNetwork._initialize();
+		await newNetwork._initialize(this.options.discovery);
 		this.networks.set(networkName, newNetwork);
 		return newNetwork;
 	}

fabric-network/lib/impl/event/transactioneventhandler.js

@@ -40,7 +40,7 @@ class TransactionEventHandler {
 		};
 		this.options = Object.assign(defaultOptions, options);
 
-		logger.debug('constructor:', util.format('transactionId = %s, options = %O', this.transactionId, this.options));
+		logger.debug('constructor:', util.format('transactionId = %s, options = %j', this.transactionId, this.options));
 
 		this.eventHubs = [];
 		this.respondedEventHubs = new Set();

fabric-network/lib/impl/wallet/basewallet.js

@@ -21,7 +21,7 @@ class BaseWallet extends Wallet {
 
 	constructor(walletMixin = new X509WalletMixin()) {
 		super();
-		logger.debug('in BaseWallet constructor, mixin = %O', walletMixin);
+		logger.debug('in BaseWallet constructor, mixin = %j', walletMixin);
 		this.storesInitialized = false;
 		this.walletMixin = walletMixin;
 	}

fabric-network/lib/network.js

@@ -77,7 +77,7 @@ class Network {
      * initialize the channel if it hasn't been done
      * @private
      */
-	async _initializeInternalChannel() {
+	async _initializeInternalChannel(discovery) {
 		logger.debug('in _initializeInternalChannel');
 
 		//TODO: Should this work across all peers or just orgs peers ?
@@ -100,10 +100,13 @@ class Network {
 		while (!success) {
 			try {
 				const initOptions = {
-					target: ledgerPeers[ledgerPeerIndex]
+					target: ledgerPeers[ledgerPeerIndex],
+					discover: discovery.enabled,
+					asLocalhost: discovery.asLocalhost
 				};
 
 				await this.channel.initialize(initOptions);
+
 				success = true;
 			} catch(error) {
 				if (ledgerPeerIndex >= ledgerPeers.length - 1) {
@@ -121,14 +124,14 @@ class Network {
 	 * @private
 	 * @memberof Network
 	 */
-	async _initialize() {
+	async _initialize(discover) {
 		logger.debug('in initialize');
 
 		if (this.initialized) {
 			return;
 		}
 
-		await this._initializeInternalChannel();
+		await this._initializeInternalChannel(discover);
 		const peerMap = this._mapPeersToMSPid();
 		this.queryHandler = await this.gateway._createQueryHandler(this.channel, peerMap);
 		this.initialized = true;

fabric-network/test/network.js

@@ -95,7 +95,7 @@ describe('Network', () => {
 
 		it('should initialize the network using the first peer', async () => {
 			mockChannel.initialize.resolves();
-			await network._initializeInternalChannel();
+			await network._initializeInternalChannel({enabled:false, asLocalhost: false});
 			sinon.assert.calledOnce(mockChannel.initialize);
 		});
 
@@ -104,10 +104,10 @@ describe('Network', () => {
 			// create a real mock
 			mockChannel.initialize.onCall(0).rejects(new Error('connect failed'));
 			mockChannel.initialize.onCall(1).resolves();
-			await network._initializeInternalChannel();
+			await network._initializeInternalChannel({enabled:false, asLocalhost: false});
 			sinon.assert.calledTwice(mockChannel.initialize);
-			sinon.assert.calledWith(mockChannel.initialize.firstCall, {target: mockPeer1});
-			sinon.assert.calledWith(mockChannel.initialize.secondCall, {target: mockPeer3});
+			sinon.assert.calledWith(mockChannel.initialize.firstCall, {target: mockPeer1, discover:false, asLocalhost: false});
+			sinon.assert.calledWith(mockChannel.initialize.secondCall, {target: mockPeer3, discover: false, asLocalhost: false});
 		});
 
 		it('should fail if all peers fail', async () => {
@@ -117,15 +117,15 @@ describe('Network', () => {
 			mockChannel.initialize.onCall(2).rejects(new Error('connect failed again'));
 			let error;
 			try {
-				await network._initializeInternalChannel();
+				await network._initializeInternalChannel({enabled:true, asLocalhost: true});
 			} catch(_error) {
 				error = _error;
 			}
 			error.should.match(/connect failed again/);
 			sinon.assert.calledThrice(mockChannel.initialize);
-			sinon.assert.calledWith(mockChannel.initialize.firstCall, {target: mockPeer1});
-			sinon.assert.calledWith(mockChannel.initialize.secondCall, {target: mockPeer3});
-			sinon.assert.calledWith(mockChannel.initialize.thirdCall, {target: mockPeer4});
+			sinon.assert.calledWith(mockChannel.initialize.firstCall, {target: mockPeer1, discover: true, asLocalhost: true});
+			sinon.assert.calledWith(mockChannel.initialize.secondCall, {target: mockPeer3, discover: true, asLocalhost: true});
+			sinon.assert.calledWith(mockChannel.initialize.thirdCall, {target: mockPeer4, discover: true, asLocalhost: true});
 		});
 
 		it('should fail if there are no LEDGER_QUERY_ROLE peers', async () => {

test/fixtures/network-discovery.json

@@ -0,0 +1,35 @@
+{
+  "name":"global-trade-network",
+  "description":"The network to be in if you want to stay in the global trade business",
+  "version":"1.0",
+  "client":{
+    "organization":"Org1"
+  },
+  "channels":{
+    "mychannel":{
+      "peers":{
+        "peer0.org1.example.com":{
+        }
+      }
+    }
+  },
+  "organizations":{
+    "Org1":{
+      "mspid":"Org1MSP",
+      "peers":[
+        "peer0.org1.example.com"
+      ]
+    }
+  },
+  "peers":{
+    "peer0.org1.example.com":{
+      "url":"grpcs://localhost:7051",
+      "grpcOptions":{
+        "ssl-target-name-override":"peer0.org1.example.com"
+      },
+      "tlsCACerts":{
+        "path":"test/fixtures/channel/crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tlscacerts/org1.example.com-cert.pem"
+      }
+    }
+  }
+}

test/integration/network-e2e/config.json

@@ -0,0 +1,35 @@
+{
+	"test-network": {
+		"orderer": {
+			"url": "grpcs://localhost:7050",
+			"server-hostname": "orderer.example.com",
+			"tls_cacerts": "../../fixtures/channel/crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tlscacerts/example.com-cert.pem"
+		},
+		"org1": {
+			"name": "peerOrg1",
+			"mspid": "Org1MSP",
+			"ca": {
+				"url": "https://localhost:7054",
+				"name": "ca-org1"
+			},
+			"peer1": {
+				"requests": "grpcs://localhost:7051",
+				"server-hostname": "peer0.org1.example.com",
+				"tls_cacerts": "../../fixtures/channel/crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tlscacerts/org1.example.com-cert.pem"
+			}
+		},
+		"org2": {
+			"name": "peerOrg2",
+			"mspid": "Org2MSP",
+			"ca": {
+				"url": "https://localhost:8054",
+				"name": "ca-org2"
+			},
+			"peer1": {
+				"requests": "grpcs://localhost:8051",
+				"server-hostname": "peer0.org2.example.com",
+				"tls_cacerts": "../../fixtures/channel/crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tlscacerts/org2.example.com-cert.pem"
+			}
+		}
+	}
+}

test/integration/network-e2e/e2e.js

@@ -7,5 +7,6 @@ require('../e2e/create-channel.js');
 require('../e2e/join-channel.js');
 require('./install-chaincode.js');
 require('./instantiate-chaincode.js');
+require('./updateAnchorPeers');
 require('./invoke.js');
 require('./query.js');

test/integration/network-e2e/invoke-hsm.js

@@ -110,6 +110,7 @@ test('\n\n***** Network End-to-end flow: invoke transaction to move money using
 			wallet: hsmWallet,
 			identity: hsmUser,
 			tlsInfo,
+			discovery: { enabled: false }
 		});
 
 		// Obtain an event hub that that will be used by the underlying implementation