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-rwxr-xr-xroles/openshift_node_dnsmasq/files/networkmanager/99-origin-dns.sh17
1 files changed, 10 insertions, 7 deletions
diff --git a/roles/openshift_node_dnsmasq/files/networkmanager/99-origin-dns.sh b/roles/openshift_node_dnsmasq/files/networkmanager/99-origin-dns.sh
index 691fa32f3..09bae1777 100755
--- a/roles/openshift_node_dnsmasq/files/networkmanager/99-origin-dns.sh
+++ b/roles/openshift_node_dnsmasq/files/networkmanager/99-origin-dns.sh
@@ -8,10 +8,12 @@
# a pod would fail.
#
# To use this,
-# Drop this script in /etc/NetworkManager/dispatcher.d/
-# systemctl restart NetworkManager
-# Configure node-config.yaml to set dnsIP: to the ip address of this
-# node
+# - If this host is also a master, reconfigure master dnsConfig to listen on
+# 8053 to avoid conflicts on port 53 and open port 8053 in the firewall
+# - Drop this script in /etc/NetworkManager/dispatcher.d/
+# - systemctl restart NetworkManager
+# - Configure node-config.yaml to set dnsIP: to the ip address of this
+# node
#
# Test it:
# host kubernetes.default.svc.cluster.local
@@ -31,7 +33,8 @@ if [[ $2 =~ ^(up|dhcp4-change)$ ]]; then
def_route=$(/sbin/ip route list match 0.0.0.0/0 | awk '{print $3 }')
def_route_int=$(/sbin/ip route get to ${def_route} | awk '{print $3}')
def_route_ip=$(/sbin/ip route get to ${def_route} | awk '{print $5}')
- if [[ ${DEVICE_IFACE} == ${def_route_int} ]]; then
+ if [[ ${DEVICE_IFACE} == ${def_route_int} && \
+ -n "${IP4_NAMESERVERS}" ]]; then
if [ ! -f /etc/dnsmasq.d/origin-dns.conf ]; then
cat << EOF > /etc/dnsmasq.d/origin-dns.conf
strict-order
@@ -42,8 +45,8 @@ server=/30.172.in-addr.arpa/172.30.0.1
EOF
fi
# zero out our upstream servers list and feed it into dnsmasq
- echo '' > /etc/dnsmasq.d/origin-upstream-dns.conf
- for ns in ${DHCP4_DOMAIN_NAME_SERVERS}; do
+ echo -n > /etc/dnsmasq.d/origin-upstream-dns.conf
+ for ns in ${IP4_NAMESERVERS}; do
echo "server=${ns}" >> /etc/dnsmasq.d/origin-upstream-dns.conf
done
systemctl restart dnsmasq