Resolve "Expand Cli with role service calls"

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.

Related to #374

cli/cmd/roleCreate.go

@@ -32,6 +32,8 @@ POSSIBILITY OF SUCH DAMAGE.
 package cmd
 
 import (
+	"strings"
+
 	"github.com/pterm/pterm"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
@@ -40,22 +42,25 @@ import (
 	"code.fbi.h-da.de/danet/gosdn/controller/api"
 )
 
-// networkElementCreateCmd represents the create command.
+// roleCreateCmd represents the create command.
 var roleCreateCmd = &cobra.Command{
 	Use:   "create",
-	Short: "creates a role in the controller",
-	Long: `Creates an orchestrated network network element on the controller.
-Network element address must be provided with IP and port,e.g., 192.168.1.1:6030. User credentials need to be provided as parameters
-if they diverge from the default credentials (user:'admin' and pw:'arista').`,
+	Short: "Creates a role in the controller",
+	Long:  `Creates a role in the controller with the provided permissions as comma separated strings.`,
 
 	Run: func(cmd *cobra.Command, args []string) {
 		spinner, _ := pterm.DefaultSpinner.Start("Creating new role")
 
+		var permissions []string
+		if createRolePermissions != "" {
+			permissions = strings.Split(createRolePermissions, ",")
+		}
+
 		roles := []*rbac.Role{
 			{
 				Name:        createRoleName,
 				Description: createRoleDescription,
-				Permissions: createRolePermissions,
+				Permissions: permissions,
 			},
 		}
 
@@ -66,25 +71,23 @@ if they diverge from the default credentials (user:'admin' and pw:'arista').`,
 		}
 
 		spinner.Success("Roles have been created.")
-
 	},
 	PostRun: func(cmd *cobra.Command, args []string) {
 		// Necessary for prompt mode. The flag variables have to be resetted,
 		// since in prompt mode the program keeps running.
 
-		createRoleName, createRoleDescription = "", ""
-		createRolePermissions = nil
+		createRoleName, createRoleDescription, createRolePermissions = "", "", ""
 	},
 }
 
 var createRoleName string
 var createRoleDescription string
-var createRolePermissions []string
+var createRolePermissions string
 
 func init() {
 	roleCmd.AddCommand(roleCreateCmd)
 
 	roleCreateCmd.Flags().StringVar(&createRoleName, "name", "", "add a name for the role")
 	roleCreateCmd.Flags().StringVar(&createRoleDescription, "description", "", "add a description to the role")
-	createRolePermissions = *roleCreateCmd.Flags().StringSlice("permissions", nil, "add permissions to the role like this: \"/gosdn.networkelement.NetworkElementService/GetFlattened,/gosdn.pnd.PndService/GetPnd\"")
+	roleCreateCmd.Flags().StringVar(&createRolePermissions, "permissions", "", "add multiple permissions separated by comma: --permissions \"p1,p2\"")
 }