Install and configure the Networking components on the controller node.
# zypper install --no-recommends openstack-neutron \
openstack-neutron-server openstack-neutron-linuxbridge-agent \
openstack-neutron-dhcp-agent openstack-neutron-metadata-agent
The Networking server component configuration includes the database, authentication mechanism, message queue, topology change notifications, and plug-in.
Note
Default configuration files vary by distribution. You might need to add these sections and options rather than modifying existing sections and options. Also, an ellipsis (...) in the configuration snippets indicates potential default configuration options that you should retain.
Edit the /etc/neutron/neutron.conf file and complete the following actions:
In the [database] section, configure database access:
[database]
...
connection = mysql+pymysql://neutron:NEUTRON_DBPASS@controller/neutron
Replace NEUTRON_DBPASS with the password you chose for the database.
In the [DEFAULT] section, enable the Modular Layer 2 (ML2) plug-in and disable additional plug-ins:
[DEFAULT]
...
core_plugin = ml2
service_plugins =
In the [DEFAULT] and [oslo_messaging_rabbit] sections, configure RabbitMQ message queue access:
[DEFAULT]
...
rpc_backend = rabbit
[oslo_messaging_rabbit]
...
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = RABBIT_PASS
Replace RABBIT_PASS with the password you chose for the openstack account in RabbitMQ.
In the [DEFAULT] and [keystone_authtoken] sections, configure Identity service access:
[DEFAULT]
...
auth_strategy = keystone
[keystone_authtoken]
...
auth_uri = http://controller:5000
auth_url = http://controller:35357
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = neutron
password = NEUTRON_PASS
Replace NEUTRON_PASS with the password you chose for the neutron user in the Identity service.
Note
Comment out or remove any other options in the [keystone_authtoken] section.
In the [DEFAULT] and [nova] sections, configure Networking to notify Compute of network topology changes:
[DEFAULT]
...
notify_nova_on_port_status_changes = True
notify_nova_on_port_data_changes = True
[nova]
...
auth_url = http://controller:35357
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = nova
password = NOVA_PASS
Replace NOVA_PASS with the password you chose for the nova user in the Identity service.
The ML2 plug-in uses the Linux bridge mechanism to build layer-2 (bridging and switching) virtual networking infrastructure for instances.
Edit the /etc/neutron/plugins/ml2/ml2_conf.ini file and complete the following actions:
In the [ml2] section, enable flat and VLAN networks:
[ml2]
...
type_drivers = flat,vlan
In the [ml2] section, disable self-service networks:
[ml2]
...
tenant_network_types =
In the [ml2] section, enable the Linux bridge mechanism:
[ml2]
...
mechanism_drivers = linuxbridge
Warning
After you configure the ML2 plug-in, removing values in the type_drivers option can lead to database inconsistency.
In the [ml2] section, enable the port security extension driver:
[ml2]
...
extension_drivers = port_security
In the [ml2_type_flat] section, configure the provider virtual network as a flat network:
[ml2_type_flat]
...
flat_networks = provider
In the [securitygroup] section, enable ipset to increase efficiency of security group rules:
[securitygroup]
...
enable_ipset = True
The Linux bridge agent builds layer-2 (bridging and switching) virtual networking infrastructure for instances and handles security groups.
Edit the /etc/neutron/plugins/ml2/linuxbridge_agent.ini file and complete the following actions:
In the [linux_bridge] section, map the provider virtual network to the provider physical network interface:
[linux_bridge]
physical_interface_mappings = provider:PROVIDER_INTERFACE_NAME
Replace PROVIDER_INTERFACE_NAME with the name of the underlying provider physical network interface. See Host networking for more information.
In the [vxlan] section, disable VXLAN overlay networks:
[vxlan]
enable_vxlan = False
In the [securitygroup] section, enable security groups and configure the Linux bridge iptables firewall driver:
[securitygroup]
...
enable_security_group = True
firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
The DHCP agent provides DHCP services for virtual networks.
Edit the /etc/neutron/dhcp_agent.ini file and complete the following actions:
In the [DEFAULT] section, configure the Linux bridge interface driver, Dnsmasq DHCP driver, and enable isolated metadata so instances on provider networks can access metadata over the network:
[DEFAULT]
...
interface_driver = neutron.agent.linux.interface.BridgeInterfaceDriver
dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq
enable_isolated_metadata = True
Return to Networking controller node configuration.
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