add confirmation for wwctl container delete

close #606

Signed-off-by: Christian Goll <cgoll@suse.de>

internal/app/wwctl/container/delete/main.go

@@ -1,15 +1,24 @@
 package delete
 
 import (
+	"fmt"
+
 	"github.com/hpcng/warewulf/internal/pkg/api/container"
 	"github.com/hpcng/warewulf/internal/pkg/api/routes/wwapiv1"
+	"github.com/hpcng/warewulf/internal/pkg/api/util"
 	"github.com/spf13/cobra"
 )
 
 func CobraRunE(cmd *cobra.Command, args []string) (err error) {
-
 	cdp := &wwapiv1.ContainerDeleteParameter{
 		ContainerNames: args,
 	}
+	if !SetYes {
+		yes := util.ConfirmationPrompt(fmt.Sprintf("Are you sure you want to container %s", args))
+		if !yes {
+			return
+		}
+
+	}
 	return container.ContainerDelete(cdp)
 }

internal/app/wwctl/container/delete/root.go

@@ -8,10 +8,10 @@ import (
 var (
 	baseCmd = &cobra.Command{
 		DisableFlagsInUseLine: true,
-		Use:   "delete [OPTIONS] CONTAINER [...]",
-		Short: "Delete an imported container",
-		Long:  "This command will delete CONTAINERs that have been imported into Warewulf.",
-		RunE:  CobraRunE,
+		Use:                   "delete [OPTIONS] CONTAINER [...]",
+		Short:                 "Delete an imported container",
+		Long:                  "This command will delete CONTAINERs that have been imported into Warewulf.",
+		RunE:                  CobraRunE,
 		ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
 			if len(args) != 0 {
 				return nil, cobra.ShellCompDirectiveNoFileComp
@@ -20,10 +20,11 @@ var (
 			return list, cobra.ShellCompDirectiveNoFileComp
 		},
 	}
+	SetYes bool
 )
 
 func init() {
-
+	baseCmd.PersistentFlags().BoolVarP(&SetYes, "yes", "y", false, "Set 'yes' to all questions asked")
 }
 
 // GetRootCommand returns the root cobra.Command for the application.