Fix mongo deprecations

controller/nucleus/database/mongo-connection.go

@@ -20,16 +20,11 @@ const (
 // GetMongoConnection Retrieves a client to the MongoDB.
 func GetMongoConnection() (*mongo.Client, context.Context, context.CancelFunc) {
 	mongoConnection := config.DatabaseConnection
-	client, err := mongo.NewClient(options.Client().ApplyURI(mongoConnection))
-	if err != nil {
-		log.Printf("Failed to create client: %v", err)
-	}
-
 	ctx, cancel := context.WithTimeout(context.Background(), connectTimeout*time.Second)
 
-	err = client.Connect(ctx)
+	client, err := mongo.Connect(ctx, options.Client().ApplyURI(mongoConnection))
 	if err != nil {
-		log.Printf("Failed to connect to cluster: %v", err)
+		log.Printf("Failed to create client: %v", err)
 	}
 
 	// Force a connection to verify our connection string

controller/nucleus/databaseNetworkElementStore.go

@@ -171,7 +171,8 @@ func (s *DatabaseNetworkElementStore) Update(networkElementToUpdate networkeleme
 	}()
 
 	// 1. Start Transaction
-	wcMajority := writeconcern.New(writeconcern.WMajority())
+	wcMajority := writeconcern.Majority()
+
 	wcMajorityCollectionOpts := options.Collection().SetWriteConcern(wcMajority)
 	userCollection := client.Database(database.DatabaseName).Collection(s.storeName, wcMajorityCollectionOpts)
 

controller/rbac/databaseUserStore.go

@@ -189,7 +189,7 @@ func (s *DatabaseUserStore) Update(userToUpdate rbac.User) (err error) {
 	}()
 
 	// 1. Start Transaction
-	wcMajority := writeconcern.New(writeconcern.WMajority())
+	wcMajority := writeconcern.Majority()
 	wcMajorityCollectionOpts := options.Collection().SetWriteConcern(wcMajority)
 	userCollection := client.Database(database.DatabaseName).Collection(s.userStoreName, wcMajorityCollectionOpts)
 

controller/topology/nodes/nodeStore.go

@@ -181,7 +181,7 @@ func (s *DatabaseNodeStore) Update(node Node) (err error) {
 	}()
 
 	// 1. Start Transaction
-	wcMajority := writeconcern.New(writeconcern.WMajority())
+	wcMajority := writeconcern.Majority()
 	wcMajorityCollectionOpts := options.Collection().SetWriteConcern(wcMajority)
 	nodeCollection := client.Database(database.DatabaseName).Collection(s.storeName, wcMajorityCollectionOpts)