From a8e73794ec421ad2bb0053214504f20a1dc3b21a Mon Sep 17 00:00:00 2001
From: Viacheslav Hletenko <v.gletenko@vyos.io>
Date: Mon, 5 Sep 2022 18:35:39 +0000
Subject: update-check: T3476: Allow update-check for VyOS images

Ability to autocheck available new images
Parse remote URL JSON image-version.json file and compare version
VyOS with a local current version, if find diff sent wall
message that the new image is available
Also, add op-mode command to check images "show system image"
With option "auto-check" check will be once per 12 hours

  set system update-check auto-check
  set system update-check url 'http://example.com/image-version.json'

If new version is available shows it per login (MOTD)
---
 interface-definitions/include/url.xml.i          | 15 +++++++++++++++
 interface-definitions/system-update-check.xml.in | 22 ++++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 interface-definitions/include/url.xml.i
 create mode 100644 interface-definitions/system-update-check.xml.in

(limited to 'interface-definitions')

diff --git a/interface-definitions/include/url.xml.i b/interface-definitions/include/url.xml.i
new file mode 100644
index 000000000..caa6f67bd
--- /dev/null
+++ b/interface-definitions/include/url.xml.i
@@ -0,0 +1,15 @@
+<!-- include start from url.xml.i -->
+<leafNode name="url">
+  <properties>
+    <help>Remote URL</help>
+    <valueHelp>
+      <format>url</format>
+      <description>Remote URL</description>
+    </valueHelp>
+    <constraint>
+      <regex>^https?:\/\/?[a-z0-9]+([\-\.]{1}[a-z0-9]+)*(\:[0-9]+)*(\/.*)?</regex>
+    </constraint>
+    <constraintErrorMessage>Incorrect URL format</constraintErrorMessage>
+  </properties>
+</leafNode>
+<!-- include end -->
diff --git a/interface-definitions/system-update-check.xml.in b/interface-definitions/system-update-check.xml.in
new file mode 100644
index 000000000..e4d7041ec
--- /dev/null
+++ b/interface-definitions/system-update-check.xml.in
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interfaceDefinition>
+  <node name="system">
+    <children>
+      <node name="update-check" owner="${vyos_conf_scripts_dir}/system_update_check.py">
+        <properties>
+          <help>Check available update images</help>
+          <priority>9999</priority>
+        </properties>
+        <children>
+          <leafNode name="auto-check">
+            <properties>
+              <help>Enable auto check for new images</help>
+              <valueless/>
+            </properties>
+          </leafNode>
+          #include <include/url.xml.i>
+        </children>
+      </node>
+    </children>
+  </node>
+</interfaceDefinition>
-- 
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