Install and configure controller node ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Prerequisites ------------- Before you configure the OpenStack Networking (neutron) service, you must create a database, service credentials, and API endpoints. #. To create the database, complete these steps: * Use the database access client to connect to the database server as the ``root`` user: .. code-block:: console $ mysql -u root -p .. end * Create the ``neutron`` database: .. code-block:: console MariaDB [(none)]> CREATE DATABASE neutron; .. end * Grant proper access to the ``neutron`` database, replacing ``NEUTRON_DBPASS`` with a suitable password: .. code-block:: console MariaDB [(none)]> GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'localhost' \ IDENTIFIED BY 'NEUTRON_DBPASS'; MariaDB [(none)]> GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'%' \ IDENTIFIED BY 'NEUTRON_DBPASS'; .. end * Exit the database access client. #. Source the ``admin`` credentials to gain access to admin-only CLI commands: .. code-block:: console $ . admin-openrc .. end #. To create the service credentials, complete these steps: * Create the ``neutron`` user: .. code-block:: console $ openstack user create --domain default --password-prompt neutron User Password: Repeat User Password: +---------------------+----------------------------------+ | Field | Value | +---------------------+----------------------------------+ | domain_id | default | | enabled | True | | id | fdb0f541e28141719b6a43c8944bf1fb | | name | neutron | | options | {} | | password_expires_at | None | +---------------------+----------------------------------+ .. end * Add the ``admin`` role to the ``neutron`` user: .. code-block:: console $ openstack role add --project service --user neutron admin .. end .. note:: This command provides no output. * Create the ``neutron`` service entity: .. code-block:: console $ openstack service create --name neutron \ --description "OpenStack Networking" network +-------------+----------------------------------+ | Field | Value | +-------------+----------------------------------+ | description | OpenStack Networking | | enabled | True | | id | f71529314dab4a4d8eca427e701d209e | | name | neutron | | type | network | +-------------+----------------------------------+ .. end #. Create the Networking service API endpoints: .. code-block:: console $ openstack endpoint create --region RegionOne \ network public http://controller:9696 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 85d80a6d02fc4b7683f611d7fc1493a3 | | interface | public | | region | RegionOne | | region_id | RegionOne | | service_id | f71529314dab4a4d8eca427e701d209e | | service_name | neutron | | service_type | network | | url | http://controller:9696 | +--------------+----------------------------------+ $ openstack endpoint create --region RegionOne \ network internal http://controller:9696 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 09753b537ac74422a68d2d791cf3714f | | interface | internal | | region | RegionOne | | region_id | RegionOne | | service_id | f71529314dab4a4d8eca427e701d209e | | service_name | neutron | | service_type | network | | url | http://controller:9696 | +--------------+----------------------------------+ $ openstack endpoint create --region RegionOne \ network admin http://controller:9696 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 1ee14289c9374dffb5db92a5c112fc4e | | interface | admin | | region | RegionOne | | region_id | RegionOne | | service_id | f71529314dab4a4d8eca427e701d209e | | service_name | neutron | | service_type | network | | url | http://controller:9696 | +--------------+----------------------------------+ .. end Configure networking options ---------------------------- You can deploy the Networking service using one of two architectures represented by options 1 and 2. Option 1 deploys the simplest possible architecture that only supports attaching instances to provider (external) networks. No self-service (private) networks, routers, or floating IP addresses. Only the ``admin`` or other privileged user can manage provider networks. Option 2 augments option 1 with layer-3 services that support attaching instances to self-service networks. The ``demo`` or other unprivileged user can manage self-service networks including routers that provide connectivity between self-service and provider networks. Additionally, floating IP addresses provide connectivity to instances using self-service networks from external networks such as the Internet. Self-service networks typically use overlay networks. Overlay network protocols such as VXLAN include additional headers that increase overhead and decrease space available for the payload or user data. Without knowledge of the virtual network infrastructure, instances attempt to send packets using the default Ethernet maximum transmission unit (MTU) of 1500 bytes. The Networking service automatically provides the correct MTU value to instances via DHCP. However, some cloud images do not use DHCP or ignore the DHCP MTU option and require configuration using metadata or a script. .. note:: Option 2 also supports attaching instances to provider networks. Choose one of the following networking options to configure services specific to it. Afterwards, return here and proceed to :ref:`neutron-controller-metadata-agent-obs`. .. toctree:: :maxdepth: 1 controller-install-option1-obs.rst controller-install-option2-obs.rst .. _neutron-controller-metadata-agent-obs: Configure the metadata agent ---------------------------- The metadata agent provides configuration information such as credentials to instances. * Edit the ``/etc/neutron/metadata_agent.ini`` file and complete the following actions: * In the ``[DEFAULT]`` section, configure the metadata host and shared secret: .. path /etc/neutron/metadata_agent.ini .. code-block:: ini [DEFAULT] # ... nova_metadata_host = controller metadata_proxy_shared_secret = METADATA_SECRET .. end Replace ``METADATA_SECRET`` with a suitable secret for the metadata proxy. Configure the Compute service to use the Networking service ----------------------------------------------------------- .. note:: The Nova compute service must be installed to complete this step. For more details see the compute install guide found under the `Installation Guides` section of the `docs website `_. * Edit the ``/etc/nova/nova.conf`` file and perform the following actions: * In the ``[neutron]`` section, configure access parameters, enable the metadata proxy, and configure the secret: .. path /etc/nova/nova.conf .. code-block:: ini [neutron] # ... auth_url = http://controller:5000 auth_type = password project_domain_name = Default user_domain_name = Default region_name = RegionOne project_name = service username = neutron password = NEUTRON_PASS service_metadata_proxy = true metadata_proxy_shared_secret = METADATA_SECRET .. end Replace ``NEUTRON_PASS`` with the password you chose for the ``neutron`` user in the Identity service. Replace ``METADATA_SECRET`` with the secret you chose for the metadata proxy. See the :nova-doc:`compute service configuration guide ` for the full set of options including overriding the service catalog endpoint URL if necessary. Finalize installation --------------------- .. note:: SLES enables apparmor by default and restricts dnsmasq. You need to either completely disable apparmor or disable only the dnsmasq profile: .. code-block:: console # ln -s /etc/apparmor.d/usr.sbin.dnsmasq /etc/apparmor.d/disable/ # systemctl restart apparmor .. end #. Restart the Compute API service: .. code-block:: console # systemctl restart openstack-nova-api.service .. end #. Start the Networking services and configure them to start when the system boots. For both networking options: .. code-block:: console # systemctl enable openstack-neutron.service \ openstack-neutron-openvswitch-agent.service \ openstack-neutron-dhcp-agent.service \ openstack-neutron-metadata-agent.service # systemctl start openstack-neutron.service \ openstack-neutron-openvswitch-agent.service \ openstack-neutron-dhcp-agent.service \ openstack-neutron-metadata-agent.service .. end For networking option 2, also enable and start the layer-3 service: .. code-block:: console # systemctl enable openstack-neutron-l3-agent.service # systemctl start openstack-neutron-l3-agent.service .. end