Load controller defaults from config

Description

Related Issue

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.

nucleus/config.go

@@ -5,6 +5,7 @@ import (
 	"github.com/spf13/viper"
 )
 
+// Config represents the nucleus configuration
 type Config struct {
 	BasePndUUID        uuid.UUID
 	BaseSouthBoundType int32
@@ -19,16 +20,17 @@ func getUUIDFromViper(viperKey string) (uuid.UUID, error) {
 		viper.WriteConfig()
 
 		return newUUID, nil
-	} else {
-		parsedUUID, err := uuid.Parse(UUIDAsString)
-		if err != nil {
-			return uuid.Nil, err
-		}
+	}
 
-		return parsedUUID, nil
+	parsedUUID, err := uuid.Parse(UUIDAsString)
+	if err != nil {
+		return uuid.Nil, err
 	}
+
+	return parsedUUID, nil
 }
 
+// InitializeConfig loads the configuration
 func (c *Config) InitializeConfig() error {
 	var err error
 	basePNDUUIDConfigLookupKey := "basePNDUUID"