Openstack Juno Part 6 - Neutron Configuration on Compute Service

Installing the packages

yum install openstack-neutron-ml2 openstack-neutron-openvswitch ipset -y


Configure the Service 
#Replace NEUTRON_PASS with the password you chose for the neutron user in the Identity service.
openstack-config --set /etc/neutron/neutron.conf DEFAULT auth_strategy keystone
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_uri http://controller:5000/v2.0
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken identity_uri http://controller:35357
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_tenant_name service
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_user neutron
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_password mar4neutron

openstack-config --set /etc/neutron/neutron.conf DEFAULT rpc_backend rabbit
openstack-config --set /etc/neutron/neutron.conf DEFAULT rabbit_host controller
openstack-config --set /etc/neutron/neutron.conf DEFAULT rabbit_password guest

openstack-config --set /etc/neutron/neutron.conf DEFAULT core_plugin ml2
openstack-config --set /etc/neutron/neutron.conf DEFAULT service_plugins router
openstack-config --set /etc/neutron/neutron.conf DEFAULT allow_overlapping_ips True

#Replace INSTANCE_TUNNELS_INTERFACE_IP_ADDRESS with the IP address of the instance tunnels network interface on your compute node. This guide uses 10.0.1.31 for the IP address of the instance tunnels network interface on the first compute node.
#Dedicated Ip for Tunneling in Compute Node

openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 type_drivers flat,gre
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 tenant_network_types gre
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 mechanism_drivers openvswitch
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2_type_gre tunnel_id_ranges 1:1000

openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ovs local_ip 10.0.0.214
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ovs tunnel_type gre
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ovs enable_tunneling True

openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini securitygroup firewall_driver neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini securitygroup enable_security_group True
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini securitygroup enable_ipset True


systemctl enable openvswitch.service
systemctl start openvswitch.service


Replace NEUTRON_PASS with the password you chose for the neutron user in the Identity service.

openstack-config --set /etc/nova/nova.conf neutron url http://controller:9696
openstack-config --set /etc/nova/nova.conf neutron auth_strategy keystone
openstack-config --set /etc/nova/nova.conf neutron admin_tenant_name service
openstack-config --set /etc/nova/nova.conf neutron admin_username neutron
openstack-config --set /etc/nova/nova.conf neutron admin_password mar4neutron
openstack-config --set /etc/nova/nova.conf neutron admin_auth_url http://controller:35357/v2.0

openstack-config --set /etc/nova/nova.conf DEFAULT linuxnet_interface_driver nova.network.linux_net.LinuxOVSInterfaceDriver
openstack-config --set /etc/nova/nova.conf DEFAULT firewall_driver nova.virt.firewall.NoopFirewallDriver
openstack-config --set /etc/nova/nova.conf DEFAULT security_group_api neutron
openstack-config --set /etc/nova/nova.conf DEFAULT network_api_class nova.network.neutronv2.api.API

ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini

#Due to a packaging bug, the Open vSwitch agent initialization script explicitly looks for the Open vSwitch plug-in #configuration file rather than a symbolic link /etc/neutron/plugin.ini pointing to the ML2 plug-in configuration file. Run the #following commands to resolve this issue:

cp /usr/lib/systemd/system/neutron-openvswitch-agent.service /usr/lib/systemd/system/neutron-openvswitch-agent.service.orig
sed -i 's,plugins/openvswitch/ovs_neutron_plugin.ini,plugin.ini,g' /usr/lib/systemd/system/neutron-openvswitch-agent.service


Starting the Services
systemctl enable neutron-openvswitch-agent.service
systemctl restart neutron-openvswitch-agent.service
systemctl restart openstack-nova-compute.service