Network node

To install and configure the network node

1. Install the packages:

   # apt-get install neutron-plugin-openvswitch-agent \
   neutron-dhcp-agent neutron-l3-agent

2. Start Open vSwitch:

   # service openvswitch-switch start

3. Add the integration bridge to the Open vSwitch:

   # ovs-vsctl add-br br-int

4. Update the OpenStack Networking /etc/neutron/neutron.conf configuration file:

   rabbit_password = guest
   rabbit_host = controller
   rabbit_password = RABBIT_PASS
   
   [database]
   connection = mysql://neutron:NEUTRON_DBPASS@controller:3306/neutron

5. Update the plug-in /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini configuration file:

   [ovs]
   tenant_network_type=vlan
   network_vlan_ranges = physnet1:1:4094
   bridge_mappings = physnet1:br-eth1

6. Create the br-eth1 network bridge. All VM communication between the nodes occurs through br-eth1:

   # ovs-vsctl add-br br-eth1
   # ovs-vsctl add-port br-eth1 eth1

7. Create the external network bridge to the Open vSwitch:

   # ovs-vsctl add-br br-ex
   # ovs-vsctl add-port br-ex eth2

8. Edit the /etc/neutron/l3_agent.ini file and add these lines:

   [DEFAULT]
   auth_url = http://controller:35357/v2.0
   admin_tenant_name = service
   admin_user = neutron
   admin_password = NEUTRON_PASS
   metadata_ip = controller
   use_namespaces = True

9. Edit the /etc/neutron/api-paste.ini file and add these lines:

   [DEFAULT]
   auth_host = controller
   admin_tenant_name = service
   admin_user = neutron
   admin_password = NEUTRON_PASS

10. Edit the /etc/neutron/dhcp_agent.ini file and add this line:

    use_namespaces = True

11. Restart networking services:

    # service neutron-plugin-openvswitch-agent start
    # service neutron-dhcp-agent restart
    # service neutron-l3-agent restart