From a98693eca08d8ced346d1ff68a93b2086bc08a69 Mon Sep 17 00:00:00 2001
From: Cory Hawkless <cory@hawkless.id.au>
Date: Sun, 22 Nov 2020 01:05:13 +1030
Subject: [PATCH] added networks_to_announce_ipv4 to outbound prefix filter

---
 tasks/main.yml        | 2 +-
 templates/frr.conf.j2 | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/tasks/main.yml b/tasks/main.yml
index 99792b2..b05e517 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -57,4 +57,4 @@
     enabled: True
     daemon_reload: yes
     name:  frr-docker.service
-  tags: frr-docker    
+  tags: frr-docker
diff --git a/templates/frr.conf.j2 b/templates/frr.conf.j2
index a52eebd..fad520d 100644
--- a/templates/frr.conf.j2
+++ b/templates/frr.conf.j2
@@ -102,5 +102,11 @@ router bgp {{host_ASN}}
  exit-address-family
 !
 {% if host_loopback_IP is defined %}ip prefix-list AS{{host_ASN}}-OUT seq 5 permit {{host_loopback_IP}}/32{% endif  %}
+{% if networks_to_announce_ipv4 is defined and networks_to_announce_ipv4 != [] %}
+{%  for item in networks_to_announce_ipv4 %}
+  ip prefix-list AS{{host_ASN}}-OUT seq {{loop.index+5}} permit {{item}}/32 
+{%  endfor %}
+{% endif %}
+
 
 {% if host_loopback_IP_v6 is defined %}ipv6 prefix-list AS{{host_ASN}}-OUT seq 5 permit {{host_loopback_IP_v6}}/128{% endif  %}