Use openshift.node.dns_ip as listening address

roles/openshift_node_dnsmasq/templates/origin-dns.conf.j2

@@ -4,4 +4,4 @@ no-negcache
 max-cache-ttl=1
 enable-dbus
 bind-interfaces
-listen-address={{ ansible_default_ipv4.address }}
+listen-address={{ openshift.node.dns_ip }}