T5329 : priority: tunnel config is committed before wireguard

[srividya0208]

Change Summary

Having a wireguard interface as the source interface on a GRE tunnel causes a configuration error on boot. Wireguard is not yet exists in the system when tun is already exists due to priority, that's why error is received

vyos@vyos:~$ /opt/vyatta/sbin/priority.pl | match "tun|wireguard"
380 interfaces/tunnel
381 interfaces/wireguard

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
• Other (please describe):

Related Task(s)

• https://vyos.dev/T5329

Component(s) name

wireguard

Proposed changes

  <tagNode name="wireguard" owner="${vyos_conf_scripts_dir}/interfaces-wireguard.py">
    <properties>
      <help>WireGuard Interface</help>
      <priority>379</priority>
      <constraint>

How to test

Configuration:

set interfaces tunnel tun0 address '10.68.1.17/30'
set interfaces tunnel tun0 encapsulation 'gre'
set interfaces tunnel tun0 remote '10.68.0.2'
set interfaces tunnel tun0 source-address '10.68.0.9'
set interfaces tunnel tun0 source-interface 'wg0'
set interfaces wireguard wg0 address '20.68.0.9/30'
set interfaces wireguard wg0 peer FR address '192.168.11.1'
set interfaces wireguard wg0 peer FR allowed-ips '0.0.0.0/0'
set interfaces wireguard wg0 peer FR port '51820'
set interfaces wireguard wg0 peer FR public-key 'gbse3gHYt90wDXoGCUClbwKf3DWFVPpSNEebI8RkIhg='
set interfaces wireguard wg0 private-key 'enfaVowlSURdQqvRDNjFrztz1+cUTlQXHQSDTl9OGDs='

Checklist:

• I have read the CONTRIBUTING document
• I have linked this PR to one or more Phabricator Task(s)
• I have run the components SMOKETESTS if applicable
• My commit headlines contain a valid Task id
• My change requires a change to the documentation
• I have updated the documentation accordingly