Matthew Kassawara 117606139c Install: Neutron updates for Mitaka

Update neutron content for Mitaka.

1) Change 'public' to 'provider' and 'private' to
   'self-service' to improve distinction between these
   networks using neutronish terms.
2) Remove explicit installation of some packages due to
   dependency fixes.
3) Remove explicit configuration of verbosity.
4) Remove explicit configuration of ARP spoofing protection.
5) Remove extraneous configuration for the metadata agent.
6) Remove extraneous configuration for nova-neutron
   interaction.
7) Reduce discussion of MTU because Mitaka fixes most
   of the issues, but we still need to explain the
   most limitation of overlay networks.
8) Generally improve wording.

Implements: blueprint installguide-mitaka
Change-Id: I3beff125b2eb8d264048530dc3bad7d346d2828b

2016-03-02 13:39:30 -07:00

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Networking Option 2: Self-service networks

Install and configure the Networking components on the controller node.

Install the components

ubuntu

# apt-get install neutron-server neutron-plugin-ml2 \
  neutron-plugin-linuxbridge-agent neutron-l3-agent neutron-dhcp-agent \
  neutron-metadata-agent conntrack

rdo

# yum install openstack-neutron openstack-neutron-ml2 \
  openstack-neutron-linuxbridge ebtables

obs

# zypper install --no-recommends openstack-neutron \
  openstack-neutron-server openstack-neutron-linuxbridge-agent \
  openstack-neutron-l3-agent openstack-neutron-dhcp-agent \
  openstack-neutron-metadata-agent

debian

Install and configure the Networking components

# apt-get install neutron-server neutron-plugin-linuxbridge-agent \
  neutron-dhcp-agent neutron-metadata-agent

For networking option 2, also install the neutron-l3-agent package.

Respond to prompts for database management, Identity service credentials, service endpoint registration, and message queue credentials.
Select the ML2 plug-in:

Note

Selecting the ML2 plug-in also populates the service_plugins and allow_overlapping_ips options in the /etc/neutron/neutron.conf file with the appropriate values.

ubuntu or rdo or obs

Configure the server component

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, router service, and overlapping IP addresses:
```
[DEFAULT]
...
core_plugin = ml2
service_plugins = router
allow_overlapping_ips = True
```
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_id = default
user_domain_id = 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_id = default
user_domain_id = 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.

rdo

In the [oslo_concurrency] section, configure the lock path:

[oslo_concurrency]
...
lock_path = /var/lib/neutron/tmp

Configure the Modular Layer 2 (ML2) plug-in

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, VLAN, and VXLAN networks:
```
[ml2]
...
type_drivers = flat,vlan,vxlan
```
- In the [ml2] section, enable VXLAN self-service networks:
```
[ml2]
...
tenant_network_types = vxlan
```
- In the [ml2] section, enable the Linux bridge and layer-2 population mechanisms:
```
[ml2]
...
mechanism_drivers = linuxbridge,l2population
```
  Warning
  
  After you configure the ML2 plug-in, removing values in the type_drivers option can lead to database inconsistency.
  
  Note
  
  The Linux bridge agent only supports VXLAN overlay networks.
- 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 [ml2_type_vxlan] section, configure the VXLAN network identifier range for self-service networks:
```
[ml2_type_vxlan]
...
vni_ranges = 1:1000
```
- In the [securitygroup] section, enable ipset to increase efficiency of security group rules:
```
[securitygroup]
...
enable_ipset = True
```

Configure the Linux bridge agent

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 environment-networking for more information.
- In the [vxlan] section, enable VXLAN overlay networks, configure the IP address of the physical network interface that handles overlay networks, and enable layer-2 population:
```
[vxlan]
enable_vxlan = True
local_ip = OVERLAY_INTERFACE_IP_ADDRESS
l2_population = True
```
  Replace OVERLAY_INTERFACE_IP_ADDRESS with the IP address of the underlying physical network interface that handles overlay networks. The example architecture uses the management interface to tunnel traffic to the other nodes. Therefore, replace OVERLAY_INTERFACE_IP_ADDRESS with the management IP address of the controller node. See environment-networking for more information.
- 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
```

Configure the layer-3 agent

The Layer-3 (L3) agent provides routing and NAT services for self-service virtual networks.

Edit the /etc/neutron/l3_agent.ini file and complete the following actions:
- In the [DEFAULT] section, configure the Linux bridge interface driver and external network bridge:
```
[DEFAULT]
...
interface_driver = neutron.agent.linux.interface.BridgeInterfaceDriver
external_network_bridge =
```
  Note
  
  The external_network_bridge option intentionally lacks a value to enable multiple external networks on a single agent.

Configure the DHCP agent

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 <neutron-controller-metadata-agent>.

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