T775: Add service config-sync between 2 routers

Service config-sync allows synchronizing a section of
the configuration.
As PoC allow only nat, nat66 and firewall sections

Rertreive the configuration for a section from self node and
send this configuration to the section of the 'secondary' node.

This feature adds a symlink from helper 'vyos_config_sync.py'
to '/config/scripts/commit/post-hooks.d' and config that is
located in '/run/config_sync_conf.conf'
It will synchronyze the config only if the setcion
was changed.

set service config-sync secondary address 192.0.2.11
set service config-sync secondary key xxx
set service config-sync section nat
set service config-sync section nat66
set service config-sync section firewall
set service config-sync mode load

1 files changed, 104 insertions, 0 deletions

diff --git a/interface-definitions/service-config-sync.xml.in b/interface-definitions/service-config-sync.xml.in
new file mode 100644
index 000000000..e804e17f7
--- /dev/null
+++ b/interface-definitions/service-config-sync.xml.in
@@ -0,0 +1,104 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interfaceDefinition>
+  <node name="service">
+    <children>
+      <node name="config-sync" owner="${vyos_conf_scripts_dir}/service_config_sync.py">
+        <properties>
+          <help>Configuration synchronization</help>
+        </properties>
+        <children>
+          <node name="secondary">
+            <properties>
+              <help>Secondary server parameters</help>
+            </properties>
+            <children>
+              <leafNode name="address">
+                <properties>
+                  <help>IP address</help>
+                  <valueHelp>
+                    <format>ipv4</format>
+                    <description>IPv4 address to match</description>
+                  </valueHelp>
+                  <valueHelp>
+                    <format>ipv6</format>
+                    <description>IPv6 address to match</description>
+                  </valueHelp>
+                  <valueHelp>
+                    <format>hostname</format>
+                    <description>FQDN address to match</description>
+                  </valueHelp>
+                  <constraint>
+                    <validator name="ipv4-address"/>
+                    <validator name="ipv6-address"/>
+                    <validator name="fqdn"/>
+                  </constraint>
+                </properties>
+              </leafNode>
+              <leafNode name="timeout">
+                <properties>
+                  <help>Connection API timeout</help>
+                  <valueHelp>
+                    <format>u32:1-300</format>
+                    <description>Connection API timeout</description>
+                  </valueHelp>
+                  <constraint>
+                    <validator name="numeric" argument="--range 1-300"/>
+                  </constraint>
+                </properties>
+                <defaultValue>60</defaultValue>
+              </leafNode>
+              <leafNode name="key">
+                <properties>
+                  <help>HTTP API key</help>
+                </properties>
+              </leafNode>
+            </children>
+          </node>
+          <leafNode name="mode">
+            <properties>
+              <help>Synchronization mode</help>
+              <completionHelp>
+                <list>load set</list>
+              </completionHelp>
+              <valueHelp>
+                <format>load</format>
+                <description>Load and replace configuration section</description>
+              </valueHelp>
+              <valueHelp>
+                <format>set</format>
+                <description>Set configuration section</description>
+              </valueHelp>
+              <constraint>
+                <regex>(load|set)</regex>
+              </constraint>
+            </properties>
+          </leafNode>
+          <leafNode name="section">
+            <properties>
+              <help>Section for synchronization</help>
+              <completionHelp>
+                <list>nat nat66 firewall</list>
+              </completionHelp>
+              <valueHelp>
+                <format>nat</format>
+                <description>NAT</description>
+              </valueHelp>
+              <valueHelp>
+                <format>nat66</format>
+                <description>NAT66</description>
+              </valueHelp>
+              <valueHelp>
+                <format>firewall</format>
+                <description>firewall</description>
+              </valueHelp>
+              <constraint>
+                <regex>(nat|nat66|firewall)</regex>
+              </constraint>
+              <multi/>
+            </properties>
+          </leafNode>
+        </children>
+      </node>
+    </children>
+  </node>
+</interfaceDefinition>