db455548a1
The 'force' parameter of os-brick's disconnect_volume() method allows callers to ignore flushing errors and ensure that devices are being removed from the host. We should use force=True when we are going to delete an instance to avoid leaving leftover devices connected to the compute host which could then potentially be reused to map to volumes to an instance that should not have access to those volumes. We can use force=True even when disconnecting a volume that will not be deleted on termination because os-brick will always attempt to flush and disconnect gracefully before forcefully removing devices. Closes-Bug: #2004555 Change-Id: I3629b84d3255a8fe9d8a7cea8c6131d7c40899e8
382 lines
13 KiB
ReStructuredText
382 lines
13 KiB
ReStructuredText
Install and configure controller node for Ubuntu
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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This section describes how to install and configure the Compute service,
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code-named nova, on the controller node.
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Prerequisites
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-------------
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Before you install and configure the Compute service, you must create
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databases, service credentials, and API endpoints.
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#. To create the databases, complete these steps:
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* Use the database access client to connect to the database server
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as the ``root`` user:
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.. code-block:: console
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# mysql
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* Create the ``nova_api``, ``nova``, and ``nova_cell0`` databases:
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.. code-block:: console
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MariaDB [(none)]> CREATE DATABASE nova_api;
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MariaDB [(none)]> CREATE DATABASE nova;
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MariaDB [(none)]> CREATE DATABASE nova_cell0;
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* Grant proper access to the databases:
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.. code-block:: console
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MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' \
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IDENTIFIED BY 'NOVA_DBPASS';
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MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' \
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IDENTIFIED BY 'NOVA_DBPASS';
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MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
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IDENTIFIED BY 'NOVA_DBPASS';
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MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
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IDENTIFIED BY 'NOVA_DBPASS';
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MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' \
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IDENTIFIED BY 'NOVA_DBPASS';
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MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' \
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IDENTIFIED BY 'NOVA_DBPASS';
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Replace ``NOVA_DBPASS`` with a suitable password.
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* Exit the database access client.
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#. Source the ``admin`` credentials to gain access to admin-only CLI commands:
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.. code-block:: console
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$ . admin-openrc
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#. Create the Compute service credentials:
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* Create the ``nova`` user:
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.. code-block:: console
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$ openstack user create --domain default --password-prompt nova
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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 | 8a7dbf5279404537b1c7b86c033620fe |
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| name | nova |
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| options | {} |
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| password_expires_at | None |
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+---------------------+----------------------------------+
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* Add the ``admin`` role to the ``nova`` user:
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.. code-block:: console
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$ openstack role add --project service --user nova admin
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.. note::
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This command provides no output.
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* Create the ``nova`` service entity:
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.. code-block:: console
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$ openstack service create --name nova \
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--description "OpenStack Compute" compute
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+-------------+----------------------------------+
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| Field | Value |
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+-------------+----------------------------------+
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| description | OpenStack Compute |
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| enabled | True |
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| id | 060d59eac51b4594815603d75a00aba2 |
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| name | nova |
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| type | compute |
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+-------------+----------------------------------+
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#. Create the Compute API service endpoints:
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.. code-block:: console
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$ openstack endpoint create --region RegionOne \
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compute public http://controller:8774/v2.1
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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 | 3c1caa473bfe4390a11e7177894bcc7b |
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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 | 060d59eac51b4594815603d75a00aba2 |
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| service_name | nova |
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| service_type | compute |
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| url | http://controller:8774/v2.1 |
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+--------------+-------------------------------------------+
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$ openstack endpoint create --region RegionOne \
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compute internal http://controller:8774/v2.1
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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 | e3c918de680746a586eac1f2d9bc10ab |
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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 | 060d59eac51b4594815603d75a00aba2 |
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| service_name | nova |
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| service_type | compute |
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| url | http://controller:8774/v2.1 |
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+--------------+-------------------------------------------+
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$ openstack endpoint create --region RegionOne \
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compute admin http://controller:8774/v2.1
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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 | 38f7af91666a47cfb97b4dc790b94424 |
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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 | 060d59eac51b4594815603d75a00aba2 |
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| service_name | nova |
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| service_type | compute |
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| url | http://controller:8774/v2.1 |
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+--------------+-------------------------------------------+
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#. Install Placement service and configure user and endpoints:
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* Refer to the :placement-doc:`Placement service install guide
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<install/install-ubuntu.html#configure-user-and-endpoints>`
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for more information.
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Install and configure components
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--------------------------------
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.. include:: shared/note_configuration_vary_by_distribution.rst
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#. Install the packages:
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.. code-block:: console
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# apt install nova-api nova-conductor nova-novncproxy nova-scheduler
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#. Edit the ``/etc/nova/nova.conf`` file and complete the following actions:
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* In the ``[api_database]`` and ``[database]`` sections, configure database
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access:
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.. path /etc/nova/nova.conf
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.. code-block:: ini
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[api_database]
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# ...
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connection = mysql+pymysql://nova:NOVA_DBPASS@controller/nova_api
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[database]
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# ...
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connection = mysql+pymysql://nova:NOVA_DBPASS@controller/nova
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Replace ``NOVA_DBPASS`` with the password you chose for the Compute
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databases.
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* In the ``[DEFAULT]`` section, configure ``RabbitMQ`` message queue access:
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.. path /etc/nova/nova.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:5672/
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Replace ``RABBIT_PASS`` with the password you chose for the ``openstack``
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account in ``RabbitMQ``.
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* In the ``[api]`` and ``[keystone_authtoken]`` sections, configure Identity
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service access:
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.. path /etc/nova/nova.conf
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.. code-block:: ini
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[api]
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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 = nova
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password = NOVA_PASS
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Replace ``NOVA_PASS`` with the password you chose for the ``nova`` user in
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the Identity service.
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.. note::
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Comment out or remove any other options in the ``[keystone_authtoken]``
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section.
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* In the ``[service_user]`` section, configure :ref:`service user
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tokens <service_user_token>`:
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.. path /etc/nova/nova.conf
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.. code-block:: ini
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[service_user]
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send_service_user_token = true
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auth_url = https://controller/identity
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auth_strategy = keystone
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auth_type = password
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project_domain_name = Default
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project_name = service
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user_domain_name = Default
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username = nova
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password = NOVA_PASS
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Replace ``NOVA_PASS`` with the password you chose for the ``nova`` user in
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the Identity service.
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* In the ``[DEFAULT]`` section, configure the ``my_ip`` option to use the
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management interface IP address of the controller node:
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.. path /etc/nova/nova.conf
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.. code-block:: ini
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[DEFAULT]
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# ...
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my_ip = 10.0.0.11
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* Configure the ``[neutron]`` section of **/etc/nova/nova.conf**. Refer to
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the :neutron-doc:`Networking service install guide
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<install/controller-install-ubuntu.html#configure-the-compute-service-to-use-the-networking-service>`
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for more information.
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* In the ``[vnc]`` section, configure the VNC proxy to use the management
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interface IP address of the controller node:
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.. path /etc/nova/nova.conf
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.. code-block:: ini
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[vnc]
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enabled = true
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# ...
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server_listen = $my_ip
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server_proxyclient_address = $my_ip
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* In the ``[glance]`` section, configure the location of the Image service
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API:
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.. path /etc/nova/nova.conf
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.. code-block:: ini
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[glance]
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# ...
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api_servers = http://controller:9292
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* In the ``[oslo_concurrency]`` section, configure the lock path:
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.. path /etc/nova/nova.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/nova/tmp
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* Due to a packaging bug, remove the ``log_dir`` option from the
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``[DEFAULT]`` section.
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* In the ``[placement]`` section, configure access to the Placement
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service:
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.. path /etc/nova/nova.conf
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.. code-block:: ini
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[placement]
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# ...
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region_name = RegionOne
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project_domain_name = Default
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project_name = service
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auth_type = password
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user_domain_name = Default
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auth_url = http://controller:5000/v3
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username = placement
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password = PLACEMENT_PASS
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Replace ``PLACEMENT_PASS`` with the password you choose for the
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``placement`` service user created when installing
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:placement-doc:`Placement <install/>`. Comment out or remove any other
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options in the ``[placement]`` section.
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#. Populate the ``nova-api`` database:
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.. code-block:: console
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# su -s /bin/sh -c "nova-manage api_db sync" nova
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.. note::
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Ignore any deprecation messages in this output.
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#. Register the ``cell0`` database:
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.. code-block:: console
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# su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
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#. Create the ``cell1`` cell:
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.. code-block:: console
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# su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
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#. Populate the nova database:
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.. code-block:: console
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# su -s /bin/sh -c "nova-manage db sync" nova
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#. Verify nova cell0 and cell1 are registered correctly:
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.. code-block:: console
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# su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
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+-------+--------------------------------------+----------------------------------------------------+--------------------------------------------------------------+----------+
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| Name | UUID | Transport URL | Database Connection | Disabled |
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+-------+--------------------------------------+----------------------------------------------------+--------------------------------------------------------------+----------+
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| cell0 | 00000000-0000-0000-0000-000000000000 | none:/ | mysql+pymysql://nova:****@controller/nova_cell0?charset=utf8 | False |
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| cell1 | f690f4fd-2bc5-4f15-8145-db561a7b9d3d | rabbit://openstack:****@controller:5672/nova_cell1 | mysql+pymysql://nova:****@controller/nova_cell1?charset=utf8 | False |
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+-------+--------------------------------------+----------------------------------------------------+--------------------------------------------------------------+----------+
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Finalize installation
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---------------------
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* Restart the Compute services:
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.. code-block:: console
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# service nova-api restart
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# service nova-scheduler restart
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# service nova-conductor restart
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# service nova-novncproxy restart
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