feat: introduce idiot-light

And put node deletion challenge behind the idiot-light

README.md

@@ -436,6 +436,8 @@ K9s uses aliases to navigate most K8s resources.
         memory: 100Mi
       # Enable TTY
       tty: true
+    # When enabled adds extra input field in which you have to confirm the deletion of a node
+    idiotLight: false
   ```
 
 ---

cmd/root.go

@@ -244,6 +244,13 @@ func initK9sFlags() {
 		"",
 		"Sets a path to a dir for a screen dumps",
 	)
+	rootCmd.Flags().BoolVar(
+		k9sFlags.IdiotLight,
+		"idiot-light",
+		false,
+		"Enable idiot light to warn the user for potentially destructive operations, e.g., delete a node",
+	)
+
 	rootCmd.Flags()
 }
 

internal/config/flags.go

@@ -27,6 +27,7 @@ type Flags struct {
 	Write         *bool
 	Crumbsless    *bool
 	ScreenDumpDir *string
+	IdiotLight    *bool
 }
 
 // NewFlags returns new configuration flags.
@@ -43,6 +44,7 @@ func NewFlags() *Flags {
 		Write:         boolPtr(false),
 		Crumbsless:    boolPtr(false),
 		ScreenDumpDir: strPtr(AppDumpsDir),
+		IdiotLight:    boolPtr(false),
 	}
 }
 

internal/config/k9s.go

@@ -28,11 +28,13 @@ type K9s struct {
 	ImageScans          ImageScans `json:"imageScans" yaml:"imageScans"`
 	Logger              Logger     `json:"logger" yaml:"logger"`
 	Thresholds          Threshold  `json:"thresholds" yaml:"thresholds"`
+	IdiotLight          bool       `json:"idiotLight" yaml:"idiotLight"`
 	manualRefreshRate   int
 	manualHeadless      *bool
 	manualLogoless      *bool
 	manualCrumbsless    *bool
 	manualReadOnly      *bool
+	manualIdiotLight    *bool
 	manualCommand       *string
 	manualScreenDumpDir *string
 	dir                 *data.Dir
@@ -99,6 +101,7 @@ func (k *K9s) Merge(k1 *K9s) {
 	k.ShellPod = k1.ShellPod
 	k.Logger = k1.Logger
 	k.ImageScans = k1.ImageScans
+	k.IdiotLight = k1.IdiotLight
 	if k1.Thresholds != nil {
 		k.Thresholds = k1.Thresholds
 	}
@@ -249,9 +252,11 @@ func (k *K9s) Override(k9sFlags *Flags) {
 
 	k.manualHeadless = k9sFlags.Headless
 	k.manualLogoless = k9sFlags.Logoless
+	k.manualIdiotLight = k9sFlags.IdiotLight
 	k.manualCrumbsless = k9sFlags.Crumbsless
 	if k9sFlags.ReadOnly != nil && *k9sFlags.ReadOnly {
 		k.manualReadOnly = k9sFlags.ReadOnly
+
 	}
 	if k9sFlags.Write != nil && *k9sFlags.Write {
 		var false bool
@@ -310,6 +315,15 @@ func (k *K9s) IsReadOnly() bool {
 	return ro
 }
 
+func (k *K9s) HasIdiotLight() bool {
+	idiotLight := k.IdiotLight
+	if k.manualIdiotLight != nil {
+		idiotLight = *k.manualIdiotLight
+	}
+
+	return idiotLight
+}
+
 // Validate the current configuration.
 func (k *K9s) Validate(c client.Connection, ks data.KubeSettings) {
 	if k.RefreshRate <= 0 {

internal/view/browser.go

@@ -358,7 +358,7 @@ func (b *Browser) deleteCmd(evt *tcell.EventKey) *tcell.EventKey {
 		}
 
 		challenge := ""
-		if b.GVR().R() == "nodes" {
+		if b.App().Config.K9s.HasIdiotLight() && b.GVR().R() == "nodes" {
 			challenge = "delete!"
 		}