include spf13/viper for config

configs/gosdn.toml

 CliSocket = "localhost:55055"
-DatabaseSocket = "bolt://172.17.0.4:7687"
-DatabaseUser = ""
-DatabasePassword = ""
-DatabaseCrypto = false
-ConfigPath = "./configs/gosdn.toml"
+db.socket = "bolt://172.17.0.4:7687"
+db.user = ""
+db.password = ""
+db.crypto = false

database/client.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"github.com/neo4j/neo4j-go-driver/neo4j"
 	log "github.com/sirupsen/logrus"
+	"github.com/spf13/viper"
 )
 
 //Database is a database
@@ -19,7 +20,11 @@ type PND struct {
 }
 
 //NewDatabaseClient creates a database ciena
-func NewDatabaseClient(uri, username, password string, encrypted bool) Database {
+func NewDatabaseClient() Database {
+	uri := viper.GetString("db.socket")
+	username := viper.GetString("db.user")
+	password := viper.GetString("db.password")
+	encrypted := viper.GetBool("db.crypto")
 	driver := createDriver(uri, username, password, encrypted)
 
 	return Database{

goarista @ 09b37ed2

-Subproject commit 09b37ed24462f5dfc3c5e47abecd790c5540f327

go.mod

@@ -5,23 +5,23 @@ go 1.14
 require (
 	code.fbi.h-da.de/cocsn/swagger/apis v0.0.0-20200924152423-61030cab7b88
 	code.fbi.h-da.de/cocsn/yang-models v0.0.3
-	github.com/BurntSushi/toml v0.3.1
-	github.com/aristanetworks/goarista v0.0.0-20201120222254-94a892eb0c6a
+	github.com/aristanetworks/goarista v0.0.0-20201120222254-94a892eb0c6a // indirect
 	github.com/gdamore/tcell/v2 v2.0.1-0.20201017141208-acf90d56d591
 	github.com/go-openapi/runtime v0.19.22
 	github.com/go-openapi/strfmt v0.19.5
-	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
+	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b // indirect
 	github.com/golang/protobuf v1.4.2
 	github.com/google/uuid v1.1.2
 	github.com/neo4j/neo4j-go-driver v1.8.3
 	github.com/onsi/ginkgo v1.13.0 // indirect
 	github.com/openconfig/gnmi v0.0.0-20200617225440-d2b4e6a45802
-	github.com/openconfig/reference v0.0.0-20190727015836-8dfd928c9696
+	github.com/openconfig/reference v0.0.0-20190727015836-8dfd928c9696 // indirect
 	github.com/openconfig/ygot v0.8.11
 	github.com/rivo/tview v0.0.0-20201018122409-d551c850a743
 	github.com/sirupsen/logrus v1.4.2
+	github.com/spf13/viper v1.7.1
 	github.com/tidwall/gjson v1.6.3
-	golang.org/x/net v0.0.0-20200904194848-62affa334b73
+	golang.org/x/net v0.0.0-20200904194848-62affa334b73 // indirect
 	google.golang.org/grpc v1.29.1
 	google.golang.org/protobuf v1.25.0
 )

nucleus/controller.go

@@ -2,9 +2,10 @@ package nucleus
 
 import (
 	"code.fbi.h-da.de/cocsn/gosdn/database"
-	"github.com/BurntSushi/toml"
+	"fmt"
 	"github.com/google/uuid"
 	log "github.com/sirupsen/logrus"
+	"github.com/spf13/viper"
 	"os"
 )
 
@@ -27,15 +28,19 @@ type Core struct {
 }
 
 //Initialize does start-up housekeeping like reading controller config files
-func (c *Core) Initialize(socket, configFileController, configFileClient string, IsRunningChannel chan bool) {
-	if err := c.readControllerConfig(configFileController); err != nil {
-		log.Fatal(err)
-	}
+func (c *Core) Initialize(IsRunningChannel chan bool) {
+	// Set config defaults
+	viper.SetDefault("socket", "localhost:55055")
 
-	if socket != "localhost:55055" {
-		c.config.CliSocket = socket
+	// Set config path and read config
+	viper.SetConfigName("gosdn")
+	viper.SetConfigType("toml")
+	viper.AddConfigPath("/usr/local/etc/gosdn/")
+	viper.AddConfigPath("./configs/")
+	err := viper.ReadInConfig()
+	if err != nil {
+		log.Fatal(fmt.Errorf("Fatal error config file: %s \n", err))
 	}
-
 	c.AttachDatabase()
 
 	c.IsRunning = IsRunningChannel
@@ -43,7 +48,7 @@ func (c *Core) Initialize(socket, configFileController, configFileClient string,
 
 // AttachDatabase connects to the database and passes the connectio to the controller core
 func (c *Core) AttachDatabase() {
-	c.database = database.NewDatabaseClient(c.config.DatabaseSocket, c.config.DatabaseUser, c.config.DatabasePassword, c.config.DatabaseCrypto)
+	c.database = database.NewDatabaseClient()
 }
 
 // Shutdown waits for the shutdown signal and gracefully shuts down once it arrived
@@ -51,33 +56,10 @@ func (c *Core) Shutdown() {
 	<-c.IsRunning
 	log.Info("Received shutdown signal. Shutting down")
 
-	f, err := os.Create(c.config.ConfigPath)
+	err := viper.WriteConfig()
 	if err != nil {
 		log.Fatal(err)
 	}
-	enc := toml.NewEncoder(f)
-	if err := enc.Encode(c.config); err != nil {
-		log.Fatal(err)
-	}
 	log.Info("Shutdown complete")
 	os.Exit(0)
-}
-
-func (c *Core) readControllerConfig(configFileController string) error {
-	if configFileController == "" {
-		configFileController = "configs/gosdn.toml"
-	}
-	if _, err := os.Stat(configFileController); err != nil {
-		return err
-	}
-
-	c.config = controllerConfig{}
-	if _, err := toml.DecodeFile(configFileController, &c.config); err != nil {
-		return err
-	}
-
-	if c.config.ConfigPath == "" {
-		c.config.ConfigPath = configFileController
-	}
-	return nil
-}
+}
\ No newline at end of file

nucleus/nucleus-core.go

@@ -7,7 +7,7 @@ import (
 )
 
 //StartAndRun is used to start the core of the controller and any auxiliary services.
-func StartAndRun(socket, filename string, IsRunningChannel chan bool) {
+func StartAndRun(IsRunningChannel chan bool) {
 	log.Info("This is the network superintendent...")
 	log.Info("Starting my ducks")
 
@@ -15,7 +15,7 @@ func StartAndRun(socket, filename string, IsRunningChannel chan bool) {
 	core := Core{
 		database: database.Database{},
 	}
-	core.Initialize(socket, filename, "", IsRunningChannel)
+	core.Initialize(IsRunningChannel)
 	// Start the GRCP CLI
 	go getCLIGoing(&core)
 	go core.Shutdown()