From e935c3fd9d6abcffbbdbdc234632598da7678687 Mon Sep 17 00:00:00 2001
From: sofakng <jklimek@gmail.com>
Date: Sun, 11 Jun 2023 03:42:22 -0400
Subject: [PATCH] Update 10-setup-network.sh to allow DNSmasq to listen to
 container network (#550)

---
 nspawn-container/scripts/10-setup-network.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/nspawn-container/scripts/10-setup-network.sh b/nspawn-container/scripts/10-setup-network.sh
index c3e375d..4d4b82b 100644
--- a/nspawn-container/scripts/10-setup-network.sh
+++ b/nspawn-container/scripts/10-setup-network.sh
@@ -50,3 +50,9 @@ ip route add "${IPV4_IP}/32" dev "br${VLAN}.mac"
 if [ -n "${IPV6_IP}" ]; then
   ip -6 route add "${IPV6_IP}/128" dev "br${VLAN}.mac"
 fi
+
+# Make DNSMasq listen to the container network for split horizon or conditional forwarding
+if ! grep -qxF "interface=br${VLAN}.mac" /run/dnsmasq.conf.d/custom.conf; then
+  echo "interface=br${VLAN}.mac" >>/run/dnsmasq.conf.d/custom.conf
+  kill -9 "$(cat /run/dnsmasq.pid)"
+fi