The neutron dockerfile needs an update for Kilo

policy.json comes from the openstack-neutron package and is required
for the agents to run.  So install it.  fwaas_driver.ini has been deleted
in master and in the kilo branch, but the agents won't run without the
file present.  So copy one from the Juno release.

fwaas_driver.ini is probably not actually required, but there is a
configuration problem somewhere in our Neutron code base.  We are out
of time for the Kilo branch, so this short term workaround should be fine.

Change-Id: I154599925308765349634b1a53e598599fc20ec1
Partially-Implements: blueprint port-kilo

docker/neutron/neutron-agents/Dockerfile

@@ -8,7 +8,7 @@ RUN easy_install supervisor
 RUN pip install supervisor-stdout
 
 # Install required packages
-RUN yum install -y openstack-neutron-linuxbridge \
+RUN yum install -y openstack-neutron openstack-neutron-linuxbridge \
         net-tools \
         && yum clean all
 
@@ -25,6 +25,12 @@ ADD check-scripts/check-dhcp-agent.sh /opt/kolla/neutron/
 ADD check-scripts/check-l3-agent.sh /opt/kolla/neutron/
 ADD check-scripts/check-metadata-agent.sh /opt/kolla/neutron/
 
+# This is needed to workaround a problem with the agents exiting if the
+# file is not present.  This file really shouldn't need to be present and
+# implies a configuration problem somewhere else in the code base, but
+# we are out of time.
+COPY fwaas_driver.ini /etc/neutron/
+
 # Configure supervisord
 RUN mkdir -p /var/log/supervisor/
 ADD supervisord.conf /etc/

docker/neutron/neutron-agents/fwaas_driver.ini

+[fwaas]
+#driver = neutron.services.firewall.drivers.linux.iptables_fwaas.IptablesFwaasDriver
+#enabled = True