adding option to skip rebooting during weekends

README.md

@@ -70,6 +70,7 @@ Flags:
       --reboot-sentinel string      path to file whose existence signals need to reboot (default "/var/run/reboot-required")
       --slack-hook-url string       slack hook URL for reboot notfications
       --slack-username string       slack username for reboot notfications (default "kured")
+      --no-weekends-reboot bool     option to not restart during weekends (default "false")
 ```
 
 ### Reboot Sentinel File & Period

cmd/kured/main.go

@@ -26,15 +26,16 @@ var (
 	version = "unreleased"
 
 	// Command line flags
-	period         time.Duration
-	dsNamespace    string
-	dsName         string
-	lockAnnotation string
-	prometheusURL  string
-	alertFilter    *regexp.Regexp
-	rebootSentinel string
-	slackHookURL   string
-	slackUsername  string
+	period          time.Duration
+	dsNamespace     string
+	dsName          string
+	lockAnnotation  string
+	prometheusURL   string
+	alertFilter     *regexp.Regexp
+	rebootSentinel  string
+	slackHookURL    string
+	slackUsername   string
+	noWeekendReboot bool
 
 	// Metrics
 	rebootRequiredGauge = prometheus.NewGaugeVec(prometheus.GaugeOpts{
@@ -73,6 +74,7 @@ func main() {
 		"slack hook URL for reboot notfications")
 	rootCmd.PersistentFlags().StringVar(&slackUsername, "slack-username", "kured",
 		"slack username for reboot notfications")
+	rootCmd.PersistentFlags().BoolVar(&noWeekendReboot, "no-weekends-reboot", false, "if true no reboots will be performed during weekends")
 
 	if err := rootCmd.Execute(); err != nil {
 		log.Fatal(err)
@@ -122,6 +124,11 @@ func rebootRequired() bool {
 func rebootBlocked() bool {
 	if prometheusURL != "" {
 		alertNames, err := alerts.PrometheusActiveAlerts(prometheusURL, alertFilter)
+		weekday := time.Now().Weekday()
+		if noWeekendReboot && (int(weekday) == 0 || int(weekday) == 6) {
+			log.Warnf("Reboot blocked: day of week: %v",weekday)
+			return true
+		}
 		if err != nil {
 			log.Warnf("Reboot blocked: prometheus query error: %v", err)
 			return true