check-routeros-update: split off check-perpetual-license...

... and also add documentation, screenshot, etc.

doc/check-perpetual-license.md

@@ -0,0 +1,70 @@
+Check perpetual license on CHR
+==============================
+
+[![GitHub stars](https://img.shields.io/github/stars/eworm-de/routeros-scripts?logo=GitHub&style=flat&color=red)](https://github.com/eworm-de/routeros-scripts/stargazers)
+[![GitHub forks](https://img.shields.io/github/forks/eworm-de/routeros-scripts?logo=GitHub&style=flat&color=green)](https://github.com/eworm-de/routeros-scripts/network)
+[![GitHub watchers](https://img.shields.io/github/watchers/eworm-de/routeros-scripts?logo=GitHub&style=flat&color=blue)](https://github.com/eworm-de/routeros-scripts/watchers)
+[![required RouterOS version](https://img.shields.io/badge/RouterOS-7.15-yellow?style=flat)](https://mikrotik.com/download/changelogs/)
+[![Telegram group @routeros_scripts](https://img.shields.io/badge/Telegram-%40routeros__scripts-%2326A5E4?logo=telegram&style=flat)](https://t.me/routeros_scripts)
+[![donate with PayPal](https://img.shields.io/badge/Like_it%3F-Donate!-orange?logo=githubsponsors&logoColor=orange&style=flat)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=A4ZXBD6YS2W8J)
+
+[⬅️ Go back to main README](../README.md)
+
+> ℹ️ **Info**: This script can not be used on its own but requires the base
+> installation. See [main README](../README.md) for details.
+
+Description
+-----------
+
+On *Cloud Hosted Router* (*CHR*) the licensing is perpetual: Buy once, use
+forever - but it needs regular renewal. This script checks licensing state
+and sends a notification to warn before expiration.
+
+### Sample notification
+
+![check-perpetual-license notification](check-perpetual-license.d/notification.avif)
+
+Requirements and installation
+-----------------------------
+
+Just install the script:
+
+    $ScriptInstallUpdate check-perpetual-license;
+
+And add a scheduler for automatic update notification:
+
+    /system/scheduler/add interval=1d name=check-perpetual-license on-event="/system/script/run check-perpetual-license;" start-time=startup;
+
+Configuration
+-------------
+
+No extra configuration is required for this script, but notification
+settings are required for
+[e-mail](mod/notification-email.md),
+[matrix](mod/notification-matrix.md),
+[ntfy](mod/notification-ntfy.md) and/or
+[telegram](mod/notification-telegram.md).
+
+Usage and invocation
+--------------------
+
+Be notified when run from scheduler or run it manually:
+
+    /system/script/run check-perpetual-license;
+
+Tips & Tricks
+-------------
+
+The script checks for full connectivity before acting, so scheduling at
+startup is perfectly valid:
+
+    /system/scheduler/add name=check-perpetual-license@startup on-event="/system/script/run check-perpetual-license;" start-time=startup;
+
+See also
+--------
+
+* [Notify on RouterOS update](check-routeros-update.md)
+
+---
+[⬅️ Go back to main README](../README.md)  
+[⬆️ Go back to top](#top)

doc/check-routeros-update.md

@@ -99,6 +99,7 @@ startup is perfectly valid:
 See also
 --------
 
+* [Check perpetual license on CHR](check-perpetual-license.md)
 * [Automatically upgrade firmware and reboot](firmware-upgrade-reboot.md)
 * [Manage system update](packages-update.md)