Ubuntu 14.04
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OpenStack Liberty : Configure Neutron (Compute Node)
2015/12/27
 
Configure OpenStack Network Service (Neutron).
For this example, Install Neutron Server on Control Node which Keystone/Glance/Nova API are already installed, and Install DHCP Agent, L3 Agent, L2 Agent, Metadata Agent on Network Node, and also Install L2 Agent on Compute Node on here. ( it's possible to install on a server as All-in-One, though, if you want )
Neutron needs a plugin software, it's possible to choose it from some softwares. This example chooses ML2 plugin. ( this example selects LinuxBridge as a backend for the plugin )
                                |
+------------------+            |            +------------------------+
| [ Control Node ] |            |            |    [ Network Node ]    |
|     Keystone     |10.0.0.30   |   10.0.0.50|        DHCP Agent      |
|      Glance      |------------+------------|        L3 Agent        |
|     Nova API     |eth0        |        eth0|        L2 Agent        |
|  Neutron Server  |            |            |     Metadata Agent     |
+------------------+            |            +------------------------+
                            eth0|10.0.0.51
                      +--------------------+
                      |  [ Compute Node ]  |
                      |    Nova Compute    |
                      |      L2 Agent      |
                      +--------------------+

 
Configure Compute Node on here.
[1] Change the kernel parameters for rp_filter.
root@node01:~#
echo 'net.ipv4.conf.default.rp_filter=0' >> /etc/sysctl.conf

root@node01:~#
echo 'net.ipv4.conf.all.rp_filter=0' >> /etc/sysctl.conf

root@node01:~#
sysctl -p

[2] Install some packages for Compute Node.
root@node01:~#
apt-get -y install neutron-common neutron-plugin-ml2 neutron-plugin-linuxbridge-agent
[3] Configure as a Compute Node.
root@node01:~#
mv /etc/neutron/neutron.conf /etc/neutron/neutron.conf.org

root@node01:~#
vi /etc/neutron/neutron.conf
# create new

[DEFAULT]
core_plugin = ml2
service_plugins = router
auth_strategy = keystone
state_path = /var/lib/neutron
allow_overlapping_ips = True
rpc_backend = rabbit

[agent]
root_helper = sudo /usr/bin/neutron-rootwrap /etc/neutron/rootwrap.conf

# Keystone auth info
[keystone_authtoken]
auth_uri = http://10.0.0.30:5000
auth_url = http://10.0.0.30:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = neutron
password = servicepassword

[oslo_concurrency]
lock_path = $state_path/lock

# RabbitMQ connection info
[oslo_messaging_rabbit]
rabbit_host = 10.0.0.30
rabbit_port = 5672
rabbit_userid = openstack
rabbit_password = password

root@node01:~#
chmod 640 /etc/neutron/neutron.conf

root@node01:~#
chgrp neutron /etc/neutron/neutron.conf

root@node01:~#
vi /etc/neutron/plugins/ml2/ml2_conf.ini
# line 7: add ( it's OK with no value for "tenant_network_types" (set later if need) )

type_drivers = flat,vlan,vxlan
tenant_network_types =
mechanism_drivers = linuxbridge,l2population
extension_drivers = port_security
# line 119: uncomment and add

enable_security_group = True
firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
# bottom line: uncomment

enable_ipset = True
root@node01:~#
ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini

root@node01:~#
vi /etc/nova/nova.conf
# add follows into [DEFAULT] section

network_api_class = nova.network.neutronv2.api.API
security_group_api = neutron
linuxnet_interface_driver = nova.network.linux_net.LinuxBridgeInterfaceDriver
firewall_driver = nova.virt.firewall.NoopFirewallDriver
metadata_listen = 0.0.0.0
# specify Control node

metadata_host = 10.0.0.30
# add follows to the ned : Neutron auth info

[neutron]
url = http://10.0.0.30:9696
auth_url = http://10.0.0.30:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
region_name = RegionOne
project_name = service
username = neutron
password = servicepassword
service_metadata_proxy = True
metadata_proxy_shared_secret = metadata_secret
root@node01:~#
for service in nova-compute nova-api-metadata neutron-plugin-linuxbridge-agent; do
initctl restart $service
done
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