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OpenStack Juno : Configure Neutron#1 ( Control Node )
2015/01/09
 
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. ( it uses Open vSwitch under the backend ) 
                                |
+------------------+            |            +------------------------+
| [ 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 Control Node on here.
[1] Add user or service for Neutron to Keystone.
# add Neutron user or service

[root@dlp ~(keystone)]#
keystone user-create --tenant service --name neutron --pass servicepassword --enabled true 

+----------+----------------------------------+
| Property |              Value               |
+----------+----------------------------------+
|  email   |                                  |
| enabled  |               True               |
|    id    | 45a241a04f81415b9ee2a0f873d65f29 |
|   name   |             neutron              |
| tenantId | 9e657ab1d2344de5aa9d86006732c7f0 |
| username |             neutron              |
+----------+----------------------------------+
[root@dlp ~(keystone)]#
keystone user-role-add --user neutron --tenant service --role admin
[root@dlp ~(keystone)]#
keystone service-create --name=neutron --type=network --description="Neutron Network Service" 

+-------------+----------------------------------+
|   Property  |              Value               |
+-------------+----------------------------------+
| description |     Neutron Network Service      |
|   enabled   |               True               |
|      id     | 27bba582d83a42b4818177bf6da16dff |
|     name    |             neutron              |
|     type    |             network              |
+-------------+----------------------------------+
# define Neutron Server's IP

[root@dlp ~(keystone)]#
export neutron_server=10.0.0.30
[root@dlp ~(keystone)]#
keystone endpoint-create --region RegionOne \
--service neutron \
--publicurl "http://$neutron_server:9696/" \
--internalurl "http://$neutron_server:9696/" \
--adminurl "http://$neutron_server:9696/" 

+-------------+----------------------------------+
|   Property  |              Value               |
+-------------+----------------------------------+
|   adminurl  |      http://10.0.0.30:9696/      |
|      id     | d6c5d66874524f938da9e5490980cb89 |
| internalurl |      http://10.0.0.30:9696/      |
|  publicurl  |      http://10.0.0.30:9696/      |
|    region   |            RegionOne             |
|  service_id | 27bba582d83a42b4818177bf6da16dff |
+-------------+----------------------------------+
[2] Add a User and DB for Neutron to MariaDB.
[root@dlp ~(keystone)]#
mysql -u root -p 

Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 14
Server version: 5.5.40-MariaDB-wsrep MariaDB Server, wsrep_25.11.r4026

Copyright (c) 2000, 2014, Oracle, Monty Program Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]>
create database neutron_ml2;

Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]>
grant all privileges on neutron_ml2.* to neutron@'localhost' identified by 'password';

Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]>
grant all privileges on neutron_ml2.* to neutron@'%' identified by 'password';

Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]>
flush privileges;

Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]>
exit

Bye
[3] Install Neutron Server.
# install from RDO, EPEL

[root@dlp ~(keystone)]#
yum --enablerepo=openstack-juno,epel -y install openstack-neutron openstack-neutron-ml2
[4] Configure Neutron Server.
[root@dlp ~(keystone)]#
vi /etc/neutron/neutron.conf
# line 65: add

core_plugin=ml2
# line 74: add

service_plugins=router
# line 81: add

auth_strategy=keystone
# line 106: uncomment

dhcp_agent_notification=True
# line 243: uncomment and change (specify Nova endpoint)

nova_url=
http://10.0.0.30:8774/v2
# line 249: uncomment and change (specify Nova user)

nova_admin_username=
nova
# line 252: uncomment and change (specify Nova user's tenant ID)

nova_admin_tenant_id=
9e657ab1d2344de5aa9d86006732c7f0
# line 255: uncomment and change (specify Nova user's password)

nova_admin_password=
servicepassword
# line 258: uncomment and change (specify Keystone server)

nova_admin_auth_url=
http://10.0.0.30:35357/v2.0
# line 343: uncomment and change (specify RabbitMQ server)

rabbit_host=
10.0.0.30
# line 347: uncomment

rabbit_port=5672
# line 356: uncomment and change (specify RabbitMQ user)

rabbit_userid=
guest
# line 359: uncomment and change (specify RabbitMQ user's password)

rabbit_password=
password
# line 444: uncomment

rpc_backend=rabbit
# line 450: add

control_exchange=neutron
# line 555: uncomment and change like follows (auth info for Keystone)

[keystone_authtoken]
auth_host =
10.0.0.30

auth_port = 35357
auth_protocol = http
admin_tenant_name =
service

admin_user =
neutron

admin_password =
servicepassword
# line 574: change (specify database)

connection = mysql://neutron:password@10.0.0.30/neutron_ml2
# line 622: comment out

#
service_provider=LOADBALANCER:Haproxy:neutron.services.loadbalancer. drivers.haproxy.plugin_driver.HaproxyOnHostPluginDriver:default
[root@dlp ~(keystone)]#
vi /etc/neutron/plugins/ml2/ml2_conf.ini
# line 7: add

type_drivers = flat,vlan,gre
tenant_network_types = vlan,gre
mechanism_drivers = openvswitch
# line 69: uncomment and add

enable_security_group = True
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
[root@dlp ~(keystone)]#
vi /etc/nova/nova.conf
# add in the [DEFAULT] section

network_api_class=nova.network.neutronv2.api.API
security_group_api=neutron
[root@dlp ~(keystone)]#
ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini

[root@dlp ~(keystone)]#
neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini upgrade head

[root@dlp ~(keystone)]#
systemctl start neutron-server

[root@dlp ~(keystone)]#
systemctl enable neutron-server

[root@dlp ~(keystone)]#
systemctl restart openstack-nova-api

 
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