e8653f28de
The nova [neutron]/url config option was deprecated in Queens [1] and is being removed in Train [2]. The neutron install guide sections about configuring compute to work with neutron were still using the url option so this change removes them. There are a few things to note here: 1. The url option functionality is replaced with the endpoint_override option from keystoneauth1 but we don't really want users using that unless there is a real need. One of the main reasons for moving the nova configuration to use keystoneauth1 was so that the network service endpoint can be looked up via KSA dynamically based on the configurable interfaces (public, internal, private) and service types authority so the endpoint URL will just be pulled from the service catalog. That means not having to hard-code the endpoint URL in nova config which makes deployment and config management simpler. As such, the url option removed in the install guide here is not replaced with the endpoint_override option. 2. Following on #1, the install guide portion about the nova/neutron config is updated with a link back to the nova config guide for the full set of options in case an operator needs to tweak the config, e.g. to set valid_interfaces or endpoint_override because the KSA defaults don't work for their deployment. 3. With the old url option, if region_name was not specified, nova would default to 'RegionOne'. That is not the case if not using the url option so we leave the region_one config in the install guide example, otherwise region_name would default to None. [1] I41724a612a5f3eabd504f3eaa9d2f9d141ca3f69 [2] I6c068a84c4c0bd88f088f9328d7897bfc1f843f1 Change-Id: I30445edeb8509330571db28c7d61dd63886e9e61 Closes-Bug: #1840930
337 lines
11 KiB
ReStructuredText
337 lines
11 KiB
ReStructuredText
Install and configure controller node
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Prerequisites
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-------------
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Before you configure the OpenStack Networking (neutron) service, you
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must create a database, service credentials, and API endpoints.
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#. To create the database, complete these steps:
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* Use the database access client to connect to the database
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server as the ``root`` user:
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.. code-block:: console
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$ mysql -u root -p
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.. end
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* Create the ``neutron`` database:
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.. code-block:: console
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MariaDB [(none)] CREATE DATABASE neutron;
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.. end
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* Grant proper access to the ``neutron`` database, replacing
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``NEUTRON_DBPASS`` with a suitable password:
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.. code-block:: console
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MariaDB [(none)]> GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'localhost' \
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IDENTIFIED BY 'NEUTRON_DBPASS';
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MariaDB [(none)]> GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'%' \
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IDENTIFIED BY 'NEUTRON_DBPASS';
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.. end
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* Exit the database access client.
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#. Source the ``admin`` credentials to gain access to admin-only CLI
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commands:
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.. code-block:: console
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$ . admin-openrc
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.. end
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#. To create the service credentials, complete these steps:
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* Create the ``neutron`` user:
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.. code-block:: console
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$ openstack user create --domain default --password-prompt neutron
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User Password:
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Repeat User Password:
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+---------------------+----------------------------------+
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| Field | Value |
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+---------------------+----------------------------------+
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| domain_id | default |
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| enabled | True |
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| id | fdb0f541e28141719b6a43c8944bf1fb |
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| name | neutron |
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| options | {} |
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| password_expires_at | None |
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+---------------------+----------------------------------+
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.. end
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* Add the ``admin`` role to the ``neutron`` user:
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.. code-block:: console
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$ openstack role add --project service --user neutron admin
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.. end
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.. note::
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This command provides no output.
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* Create the ``neutron`` service entity:
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.. code-block:: console
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$ openstack service create --name neutron \
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--description "OpenStack Networking" network
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+-------------+----------------------------------+
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| Field | Value |
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+-------------+----------------------------------+
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| description | OpenStack Networking |
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| enabled | True |
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| id | f71529314dab4a4d8eca427e701d209e |
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| name | neutron |
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| type | network |
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+-------------+----------------------------------+
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.. end
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#. Create the Networking service API endpoints:
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.. code-block:: console
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$ openstack endpoint create --region RegionOne \
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network public http://controller:9696
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+--------------+----------------------------------+
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| Field | Value |
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+--------------+----------------------------------+
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| enabled | True |
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| id | 85d80a6d02fc4b7683f611d7fc1493a3 |
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| interface | public |
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| region | RegionOne |
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| region_id | RegionOne |
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| service_id | f71529314dab4a4d8eca427e701d209e |
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| service_name | neutron |
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| service_type | network |
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| url | http://controller:9696 |
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+--------------+----------------------------------+
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$ openstack endpoint create --region RegionOne \
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network internal http://controller:9696
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+--------------+----------------------------------+
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| Field | Value |
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+--------------+----------------------------------+
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| enabled | True |
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| id | 09753b537ac74422a68d2d791cf3714f |
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| interface | internal |
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| region | RegionOne |
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| region_id | RegionOne |
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| service_id | f71529314dab4a4d8eca427e701d209e |
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| service_name | neutron |
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| service_type | network |
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| url | http://controller:9696 |
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+--------------+----------------------------------+
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$ openstack endpoint create --region RegionOne \
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network admin http://controller:9696
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+--------------+----------------------------------+
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| Field | Value |
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+--------------+----------------------------------+
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| enabled | True |
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| id | 1ee14289c9374dffb5db92a5c112fc4e |
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| interface | admin |
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| region | RegionOne |
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| region_id | RegionOne |
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| service_id | f71529314dab4a4d8eca427e701d209e |
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| service_name | neutron |
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| service_type | network |
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| url | http://controller:9696 |
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+--------------+----------------------------------+
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.. end
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Configure networking options
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----------------------------
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You can deploy the Networking service using one of two architectures
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represented by options 1 and 2.
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Option 1 deploys the simplest possible architecture that only supports
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attaching instances to provider (external) networks. No self-service (private)
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networks, routers, or floating IP addresses. Only the ``admin`` or other
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privileged user can manage provider networks.
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Option 2 augments option 1 with layer-3 services that support attaching
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instances to self-service networks. The ``demo`` or other unprivileged
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user can manage self-service networks including routers that provide
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connectivity between self-service and provider networks. Additionally,
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floating IP addresses provide connectivity to instances using self-service
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networks from external networks such as the Internet.
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Self-service networks typically use overlay networks. Overlay network
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protocols such as VXLAN include additional headers that increase overhead
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and decrease space available for the payload or user data. Without knowledge
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of the virtual network infrastructure, instances attempt to send packets
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using the default Ethernet maximum transmission unit (MTU) of 1500
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bytes. The Networking service automatically provides the correct MTU value
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to instances via DHCP. However, some cloud images do not use DHCP or ignore
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the DHCP MTU option and require configuration using metadata or a script.
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.. note::
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Option 2 also supports attaching instances to provider networks.
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Choose one of the following networking options to configure services
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specific to it. Afterwards, return here and proceed to
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:ref:`neutron-controller-metadata-agent-rdo`.
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.. toctree::
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:maxdepth: 1
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controller-install-option1-rdo.rst
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controller-install-option2-rdo.rst
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.. _neutron-controller-metadata-agent-rdo:
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Configure the metadata agent
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----------------------------
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The metadata agent provides configuration information
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such as credentials to instances.
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* Edit the ``/etc/neutron/metadata_agent.ini`` file and complete the following
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actions:
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* In the ``[DEFAULT]`` section, configure the metadata host and shared
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secret:
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.. path /etc/neutron/metadata_agent.ini
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.. code-block:: ini
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[DEFAULT]
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# ...
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nova_metadata_host = controller
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metadata_proxy_shared_secret = METADATA_SECRET
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.. end
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Replace ``METADATA_SECRET`` with a suitable secret for the metadata proxy.
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Configure the Compute service to use the Networking service
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-----------------------------------------------------------
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.. note::
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The Nova compute service must be installed to complete this step.
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For more details see the compute install guide found under the
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`Installation Guides` section of the
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`docs website <https://docs.openstack.org>`_.
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* Edit the ``/etc/nova/nova.conf`` file and perform the following actions:
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* In the ``[neutron]`` section, configure access parameters, enable the
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metadata proxy, and configure the secret:
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.. path /etc/nova/nova.conf
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.. code-block:: ini
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[neutron]
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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 = neutron
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password = NEUTRON_PASS
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service_metadata_proxy = true
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metadata_proxy_shared_secret = METADATA_SECRET
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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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Replace ``METADATA_SECRET`` with the secret you chose for the metadata
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proxy.
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See the :nova-doc:`compute service configuration guide <configuration/config.html#neutron>`
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for the full set of options including overriding the service catalog
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endpoint URL if necessary.
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Finalize installation
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---------------------
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#. The Networking service initialization scripts expect a symbolic link
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``/etc/neutron/plugin.ini`` pointing to the ML2 plug-in configuration
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file, ``/etc/neutron/plugins/ml2/ml2_conf.ini``. If this symbolic
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link does not exist, create it using the following command:
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.. code-block:: console
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# ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini
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.. end
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#. Populate the database:
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.. code-block:: console
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# su -s /bin/sh -c "neutron-db-manage --config-file /etc/neutron/neutron.conf \
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--config-file /etc/neutron/plugins/ml2/ml2_conf.ini upgrade head" neutron
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.. end
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.. note::
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Database population occurs later for Networking because the script
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requires complete server and plug-in configuration files.
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#. Restart the Compute API service:
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.. code-block:: console
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# systemctl restart openstack-nova-api.service
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.. end
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#. Start the Networking services and configure them to start when the system
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boots.
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For both networking options:
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.. code-block:: console
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# systemctl enable neutron-server.service \
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neutron-linuxbridge-agent.service neutron-dhcp-agent.service \
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neutron-metadata-agent.service
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# systemctl start neutron-server.service \
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neutron-linuxbridge-agent.service neutron-dhcp-agent.service \
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neutron-metadata-agent.service
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.. end
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For networking option 2, also enable and start the layer-3 service:
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.. code-block:: console
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# systemctl enable neutron-l3-agent.service
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# systemctl start neutron-l3-agent.service
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.. end
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