Improve simple-testing-network to check if monitoring should be enabled or not.

Signed-off-by: munapower <mmunaro@hotmail.com>

Author: munapower

samples/deployment/fabric-smart-client/the-simple-testing-network/README.md

@@ -38,7 +38,7 @@ make run
 go run . network start --path ./testdata
 ```
 Once the network is up and running, use a second terminal to interact with the network.
-Uou can shut down the network using `CTRL+C`.
+You can shut down the network using `CTRL+C`.
 
 To clean up the network you can run `make clean` or `go run . network clean --path ./testdata`.
 
@@ -75,7 +75,10 @@ You can switch the user by running `./env.sh` either with `Org1` or `Org2`.
 
 The test network includes a Hyperledger Blockchain explorer that you can use to see what is happening on the network.
 By default, you can reach the Blockchain Explorer Dashboard via your browser on `http://localhost:8080` with username `admin` and password `admin`.
-
+You can disable adding it by setting the `BE_INSTALL` environment variable to `NO`.
+```bash
+export BE_INSTALL=NO
+```
 
 ### Troubleshooting
 

samples/deployment/fabric-smart-client/the-simple-testing-network/topology.go

@@ -24,6 +24,7 @@ const (
 	defaultChaincodeImageTag  = "latest"
 	defaultChaincodeMRENCLAVE = "fakeMRENCLAVE"
 	defaultLoggingSpec        = "info"
+	defaultBlockchainExplorer = "YES"
 )
 
 func Fabric() []api.Topology {
@@ -41,16 +42,18 @@ func Fabric() []api.Topology {
 	// bring hyperledger explorer into the game
 	// you can reach it http://localhost:8080 with admin:admin
 	monitoringTopology := monitoring.NewTopology()
-	monitoringTopology.EnableHyperledgerExplorer()
-
+	if config.blockchainExplorer == "YES" {
+		monitoringTopology.EnableHyperledgerExplorer()
+	}
 	return []api.Topology{fabricTopology, fsc.NewTopology(), monitoringTopology}
 }
 
 type config struct {
-	loggingSpec    string
-	chaincodeName  string
-	chaincodeImage string
-	fpcOptions     []func(chaincode *topology.ChannelChaincode)
+	loggingSpec        string
+	chaincodeName      string
+	chaincodeImage     string
+	blockchainExplorer string
+	fpcOptions         []func(chaincode *topology.ChannelChaincode)
 }
 
 // setup prepares a config helper struct, containing some additional configuration that can be injected via environment variables
@@ -75,6 +78,12 @@ func setup() *config {
 		config.chaincodeImage = fmt.Sprintf("%s:%s", defaultChaincodeImageName, defaultChaincodeImageTag)
 	}
 
+	// export BE_INSTALL=YES or NO
+	config.blockchainExplorer = os.Getenv("BE_INSTALL")
+	if len(config.blockchainExplorer) == 0 {
+		config.blockchainExplorer = defaultBlockchainExplorer
+	}
+
 	// get mrenclave
 	mrenclave := os.Getenv("FPC_MRENCLAVE")
 	if len(mrenclave) == 0 {