311 lines
7.9 KiB
ReStructuredText
311 lines
7.9 KiB
ReStructuredText
Networking Option 1: Provider networks
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Install and configure the Networking components on the *controller* node.
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Install the components
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----------------------
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.. code-block:: console
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# yum install openstack-neutron openstack-neutron-ml2 \
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openstack-neutron-openvswitch
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.. end
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Configure the server component
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------------------------------
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The Networking server component configuration includes the database,
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authentication mechanism, message queue, topology change notifications,
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and plug-in.
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.. include:: shared/note_configuration_vary_by_distribution.rst
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* Edit the ``/etc/neutron/neutron.conf`` file and complete the following
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actions:
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* In the ``[database]`` section, configure database access:
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.. path /etc/neutron/neutron.conf
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.. code-block:: ini
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[database]
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# ...
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connection = mysql+pymysql://neutron:NEUTRON_DBPASS@controller/neutron
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.. end
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Replace ``NEUTRON_DBPASS`` with the password you chose for the
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database.
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.. note::
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Comment out or remove any other ``connection`` options in the
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``[database]`` section.
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* In the ``[DEFAULT]`` section, enable the Modular Layer 2 (ML2)
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plug-in and disable additional plug-ins:
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.. path /etc/neutron/neutron.conf
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.. code-block:: ini
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[DEFAULT]
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# ...
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core_plugin = ml2
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service_plugins =
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.. end
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* In the ``[DEFAULT]`` section, configure ``RabbitMQ``
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message queue access:
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.. path /etc/neutron/neutron.conf
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.. code-block:: ini
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[DEFAULT]
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# ...
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transport_url = rabbit://openstack:RABBIT_PASS@controller
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.. end
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Replace ``RABBIT_PASS`` with the password you chose for the
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``openstack`` account in RabbitMQ.
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* In the ``[DEFAULT]`` and ``[keystone_authtoken]`` sections, configure
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Identity service access:
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.. path /etc/neutron/neutron.conf
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.. code-block:: ini
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[DEFAULT]
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# ...
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auth_strategy = keystone
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[keystone_authtoken]
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# ...
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www_authenticate_uri = http://controller:5000
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auth_url = http://controller:5000
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memcached_servers = controller:11211
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auth_type = password
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project_domain_name = Default
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user_domain_name = Default
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project_name = service
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username = neutron
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password = NEUTRON_PASS
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.. end
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Replace ``NEUTRON_PASS`` with the password you chose for the ``neutron``
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user in the Identity service.
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.. note::
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Comment out or remove any other options in the
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``[keystone_authtoken]`` section.
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* In the ``[DEFAULT]`` and ``[nova]`` sections, configure Networking to
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notify Compute of network topology changes:
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.. path /etc/neutron/neutron.conf
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.. code-block:: ini
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[DEFAULT]
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# ...
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notify_nova_on_port_status_changes = true
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notify_nova_on_port_data_changes = true
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[nova]
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# ...
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auth_url = http://controller:5000
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auth_type = password
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project_domain_name = Default
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user_domain_name = Default
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region_name = RegionOne
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project_name = service
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username = nova
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password = NOVA_PASS
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.. end
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Replace ``NOVA_PASS`` with the password you chose for the ``nova``
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user in the Identity service.
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* In the ``[oslo_concurrency]`` section, configure the lock path:
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.. path /etc/neutron/neutron.conf
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.. code-block:: ini
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[oslo_concurrency]
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# ...
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lock_path = /var/lib/neutron/tmp
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.. end
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Configure the Modular Layer 2 (ML2) plug-in
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-------------------------------------------
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The ML2 plug-in uses the Linux bridge mechanism to build layer-2 (bridging
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and switching) virtual networking infrastructure for instances.
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* Edit the ``/etc/neutron/plugins/ml2/ml2_conf.ini`` file and complete the
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following actions:
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* In the ``[ml2]`` section, enable flat and VLAN networks:
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.. path /etc/neutron/plugins/ml2/ml2_conf.ini
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.. code-block:: ini
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[ml2]
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# ...
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type_drivers = flat,vlan
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.. end
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* In the ``[ml2]`` section, disable self-service networks:
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.. path /etc/neutron/plugins/ml2/ml2_conf.ini
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.. code-block:: ini
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[ml2]
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# ...
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tenant_network_types =
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.. end
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* In the ``[ml2]`` section, enable the Linux bridge mechanism:
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.. path /etc/neutron/plugins/ml2/ml2_conf.ini
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.. code-block:: ini
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[ml2]
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# ...
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mechanism_drivers = openvswitch
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.. end
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.. warning::
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After you configure the ML2 plug-in, removing values in the
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``type_drivers`` option can lead to database inconsistency.
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* In the ``[ml2]`` section, enable the port security extension driver:
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.. path /etc/neutron/plugins/ml2/ml2_conf.ini
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.. code-block:: ini
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[ml2]
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# ...
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extension_drivers = port_security
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.. end
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* In the ``[ml2_type_flat]`` section, configure the provider virtual
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network as a flat network:
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.. path /etc/neutron/plugins/ml2/ml2_conf.ini
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.. code-block:: ini
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[ml2_type_flat]
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# ...
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flat_networks = provider
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.. end
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Configure the Open vSwitch agent
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--------------------------------
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The Linux bridge agent builds layer-2 (bridging and switching) virtual
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networking infrastructure for instances and handles security groups.
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* Edit the ``/etc/neutron/plugins/ml2/openvswitch_agent.ini`` file and
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complete the following actions:
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* In the ``[ovs]`` section, map the provider virtual network to the
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provider physical bridge:
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.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
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.. code-block:: ini
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[ovs]
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bridge_mappings = provider:PROVIDER_BRIDGE_NAME
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.. end
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Replace ``PROVIDER_BRIDGE_NAME`` with the name of the bridge connected to
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the underlying provider physical network.
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See :doc:`environment-networking-rdo`
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and :doc:`../admin/deploy-ovs-provider` for more information.
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* Ensure ``PROVIDER_BRIDGE_NAME`` external bridge is created and
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``PROVIDER_INTERFACE_NAME`` is added to that bridge
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.. code-block:: bash
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# ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
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# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME
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.. end
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* In the ``[securitygroup]`` section, enable security groups and
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configure the Open vSwitch native or the hybrid iptables firewall driver:
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.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
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.. code-block:: ini
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[securitygroup]
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# ...
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enable_security_group = true
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firewall_driver = openvswitch
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#firewall_driver = iptables_hybrid
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.. end
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* In the case of using the hybrid iptables firewall driver, ensure your
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Linux operating system kernel supports network bridge filters by verifying
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all the following ``sysctl`` values are set to ``1``:
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.. code-block:: ini
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net.bridge.bridge-nf-call-iptables
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net.bridge.bridge-nf-call-ip6tables
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.. end
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To enable networking bridge support, typically the ``br_netfilter`` kernel
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module needs to be loaded. Check your operating system's documentation for
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additional details on enabling this module.
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Configure the DHCP agent
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------------------------
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The DHCP agent provides DHCP services for virtual networks.
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* Edit the ``/etc/neutron/dhcp_agent.ini`` file and complete the following
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actions:
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* In the ``[DEFAULT]`` section, configure the Linux bridge interface driver,
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Dnsmasq DHCP driver, and enable isolated metadata so instances on provider
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networks can access metadata over the network:
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.. path /etc/neutron/dhcp_agent.ini
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.. code-block:: ini
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[DEFAULT]
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# ...
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interface_driver = openvswitch
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dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq
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enable_isolated_metadata = true
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.. end
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Create the provider network
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---------------------------
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Follow `this provider network document <https://docs.openstack.org/install-guide/launch-instance-networks-provider.html>`_ from the General Installation Guide.
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Return to *Networking controller node configuration*.
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