--- /dev/null
+#!/usr/bin/env bash
+
+if [ -f "/home/vagrant/sfc04.lock" ]; then
+ echo "You have already run sfc04"
+ exit
+fi
+echo "writing lock file /home/vagrant/sfc04.lock"
+touch /home/vagrant/sfc04.lock
+
+python /vagrant/devstack-scripts/sfc/chain.py $ODL client_sg web_sg mychain
+
+echo "Chain action added to policy.
+
+kernelmods.sh
+"