From e38c09bc09bc60412a3568ca35cae645e2319f56 Mon Sep 17 00:00:00 2001
From: Daniel Ankers <dankers@domicilium.com>
Date: Fri, 19 Jan 2024 16:50:24 +0000
Subject: [PATCH] Only configure relevant VLANs on any switch

---
 juniper-macros.j2 | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/juniper-macros.j2 b/juniper-macros.j2
index 320e76d..62d3cc5 100644
--- a/juniper-macros.j2
+++ b/juniper-macros.j2
@@ -302,7 +302,8 @@ routing-options {
 
 {% macro vlanssection(vlans,device) %}
 vlans {
-{% for vlan in vlans %}
+{# This next line selects all of the VLANs which are configured on this device #}
+{% for vlan in vlans if (device['interfaces']|selectattr('untagged_vlan.vid','equalto',vlan)|list|count or interfaces|map(attribute='tagged_vlans')|sum(start=[])|selectattr('vid','equalto',vlan)|list|count) or device['interfaces']|selectattr('name', 'equalto', 'irb.'+vlan['vid']|string)|list|count %}
     vl{{ vlan['vid'] }} {
 {% if vlan['name'] != '' %}
         description "{{ vlan['name'] }}";