Use randomized wallet names

src/dlt/gateway/.gitignore

@@ -87,4 +87,4 @@ gradle-app.setting
 .gradletasknamecache
 
 local.properties
-wallet/
+wallet*/
\ No newline at end of file

src/dlt/gateway/src/main/kotlin/grpc/FabricServer.kt

@@ -48,8 +48,9 @@ class FabricServer(val port: Int) {
     private val server: Server
 
     init {
-        val cfg = Config.DltConfig.newBuilder().setWallet("wallet").setConnectionFile("config/connection-org1.json")
-            .setUser("appUser" + Random.nextUInt())
+        val id = Random.nextUInt()
+        val cfg = Config.DltConfig.newBuilder().setWallet("wallet$id").setConnectionFile("config/connection-org1.json")
+            .setUser("appUser$id")
             .setChannel("dlt")
             .setContract("basic").setCaCertFile("config/ca.org1.example.com-cert.pem").setCaUrl("https://teraflow.nlehd.de:7054")
             .setCaAdmin("admin").setCaAdminSecret("adminpw").setMsp("Org1MSP").setAffiliation("org1.department1")