feat: improve ENV variable overrides, introduce Node struct, refactoring

pkg/system/init.go

@@ -0,0 +1,47 @@
+package system
+
+import (
+	"log"
+
+	"github.com/0x1d/rcond/pkg/config"
+	"github.com/0x1d/rcond/pkg/network"
+	"github.com/0x1d/rcond/pkg/util"
+	"github.com/godbus/dbus/v5"
+)
+
+func Configure(appConfig *config.Config) error {
+	log.Print("[INFO] Configure system")
+	// configure hostname
+	if err := network.SetHostname(appConfig.Hostname); err != nil {
+		log.Printf("[ERROR] setting hostname failed: %s", err)
+	}
+	// configure network connections
+	for _, connection := range appConfig.Network.Connections {
+		err := util.WithConnection(func(conn *dbus.Conn) error {
+			_, err := network.AddConnectionWithConfig(conn, &network.ConnectionConfig{
+				Type:        connection.Type,
+				UUID:        connection.UUID,
+				ID:          connection.ID,
+				AutoConnect: connection.AutoConnect,
+				SSID:        connection.SSID,
+				Mode:        connection.Mode,
+				Band:        connection.Band,
+				Channel:     connection.Channel,
+				KeyMgmt:     connection.KeyMgmt,
+				PSK:         connection.PSK,
+				IPv4Method:  connection.IPv4Method,
+				IPv6Method:  connection.IPv6Method,
+			})
+			if err != nil {
+				return err
+			}
+			return nil
+		})
+		if err != nil {
+			log.Printf("[ERROR] configuring connections failed: %s", err)
+		}
+
+	}
+	log.Print("[INFO] System configured")
+	return nil
+}