add supported k8s version check

internal/config/config.go

@@ -3,6 +3,7 @@ package config
 import (
 	"fmt"
 	"kube-forge/internal/files"
+	"kube-forge/internal/logging"
 	"path/filepath"
 
 	"github.com/ilyakaznacheev/cleanenv"
@@ -72,6 +73,11 @@ func createConfig(configFile string, out string, password string, verbose bool)
 	}
 
 	instance.Verbose = verbose
+
+	err := validateConfig(*instance)
+	if err != nil {
+		logging.Log.Fatal(err.Error())
+	}
 	return instance
 }