Configurable token duration

Returns the default sync interval to 10 minutes as well.

Author: sethp-nr

main.go

@@ -73,8 +73,15 @@ func main() {
 	flag.DurationVar(
 		&syncPeriod,
 		"sync-period",
-		9*time.Minute,
-		"The minimum interval at which watched resources are reconciled (e.g. 9m)",
+		10*time.Minute,
+		"The minimum interval at which watched resources are reconciled (e.g. 10m)",
+	)
+
+	flag.DurationVar(
+		&controllers.DefaultTokenTTL,
+		"bootstrap-token-ttl",
+		15*time.Minute,
+		"The amount of time the bootstrap token will be valid",
 	)
 
 	flag.StringVar(