Resolve "Requesting information from the Controller via NBI takes very long"

Description

Related Issue

#230 (closed)

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

controller/config/config.go

@@ -21,6 +21,7 @@ const (
 	jwtDurationKey                  = "defaultJWTDuration"
 	defaultJWTDuration              = time.Hour * 24
 	jwtSecretKey                    = "jwtSecret"
+	gNMISubscriptionsFilePathKey    = "gNMISubscriptionsPath"
 
 	// RabbitMQ Broker
 	amqpPrefixKey   = "amqpPrefix"
@@ -72,6 +73,9 @@ var AMQPHost string
 // AMQPPort is the amqp port
 var AMQPPort string
 
+// GNMISubscriptionsFilePath is the path to the file used for automated subscriptions
+var GNMISubscriptionsFilePath string
+
 // Init gets called on module import
 func Init() {
 	err := InitializeConfig()
@@ -125,6 +129,8 @@ func InitializeConfig() error {
 
 	JWTSecret = viper.GetString(jwtSecretKey)
 
+	GNMISubscriptionsFilePath = getStringFromViper(gNMISubscriptionsFilePathKey)
+
 	loadAMQPConfig()
 
 	if err := viper.WriteConfig(); err != nil {