# Install and configure controller node for openSUSE and SUSE Linux Enterprise

This section describes how to install and configure the Compute service, code-named nova, on the controller node.

## Prerequisites

Before you install and configure the Compute service, you must create databases, service credentials, and API endpoints.

1. To create the databases, complete these steps:

   - Use the database access client to connect to the database server as the `root` user:

         $ mysql -u root -p

   - Create the `nova_api`, `nova`, and `nova_cell0` databases:

         MariaDB [(none)]> CREATE DATABASE nova_api;
         MariaDB [(none)]> CREATE DATABASE nova;
         MariaDB [(none)]> CREATE DATABASE nova_cell0;

   - Grant proper access to the databases:

         MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' \
           IDENTIFIED BY 'NOVA_DBPASS';
         MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' \
           IDENTIFIED BY 'NOVA_DBPASS';

         MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
           IDENTIFIED BY 'NOVA_DBPASS';
         MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
           IDENTIFIED BY 'NOVA_DBPASS';

         MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' \
           IDENTIFIED BY 'NOVA_DBPASS';
         MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' \
           IDENTIFIED BY 'NOVA_DBPASS';

     Replace `NOVA_DBPASS` with a suitable password.

   - Exit the database access client.

2. Source the `admin` credentials to gain access to admin-only CLI commands:

       $ . admin-openrc

3. Create the Compute service credentials:

   - Create the `nova` user:

         $ openstack user create --domain default --password-prompt nova

         User Password:
         Repeat User Password:
         +---------------------+----------------------------------+
         | Field               | Value                            |
         +---------------------+----------------------------------+
         | domain_id           | default                          |
         | enabled             | True                             |
         | id                  | 8a7dbf5279404537b1c7b86c033620fe |
         | name                | nova                             |
         | options             | {}                               |
         | password_expires_at | None                             |
         +---------------------+----------------------------------+

   - Add the `admin` role to the `nova` user:

         $ openstack role add --project service --user nova admin

     Note

     This command provides no output.

   - Create the `nova` service entity:

         $ openstack service create --name nova \
           --description "OpenStack Compute" compute

         +-------------+----------------------------------+
         | Field       | Value                            |
         +-------------+----------------------------------+
         | description | OpenStack Compute                |
         | enabled     | True                             |
         | id          | 060d59eac51b4594815603d75a00aba2 |
         | name        | nova                             |
         | type        | compute                          |
         +-------------+----------------------------------+

4. Create the Compute API service endpoints:

       $ openstack endpoint create --region RegionOne \
         compute public http://controller:8774/v2.1

       +--------------+-------------------------------------------+
       | Field        | Value                                     |
       +--------------+-------------------------------------------+
       | enabled      | True                                      |
       | id           | 3c1caa473bfe4390a11e7177894bcc7b          |
       | interface    | public                                    |
       | region       | RegionOne                                 |
       | region_id    | RegionOne                                 |
       | service_id   | 060d59eac51b4594815603d75a00aba2          |
       | service_name | nova                                      |
       | service_type | compute                                   |
       | url          | http://controller:8774/v2.1               |
       +--------------+-------------------------------------------+

       $ openstack endpoint create --region RegionOne \
         compute internal http://controller:8774/v2.1

       +--------------+-------------------------------------------+
       | Field        | Value                                     |
       +--------------+-------------------------------------------+
       | enabled      | True                                      |
       | id           | e3c918de680746a586eac1f2d9bc10ab          |
       | interface    | internal                                  |
       | region       | RegionOne                                 |
       | region_id    | RegionOne                                 |
       | service_id   | 060d59eac51b4594815603d75a00aba2          |
       | service_name | nova                                      |
       | service_type | compute                                   |
       | url          | http://controller:8774/v2.1               |
       +--------------+-------------------------------------------+

       $ openstack endpoint create --region RegionOne \
         compute admin http://controller:8774/v2.1

       +--------------+-------------------------------------------+
       | Field        | Value                                     |
       +--------------+-------------------------------------------+
       | enabled      | True                                      |
       | id           | 38f7af91666a47cfb97b4dc790b94424          |
       | interface    | admin                                     |
       | region       | RegionOne                                 |
       | region_id    | RegionOne                                 |
       | service_id   | 060d59eac51b4594815603d75a00aba2          |
       | service_name | nova                                      |
       | service_type | compute                                   |
       | url          | http://controller:8774/v2.1               |
       +--------------+-------------------------------------------+

5. Install Placement service and configure user and endpoints:

   - Refer to the Placement service install guide for more information.

## Install and configure components

Note

Default configuration files vary by distribution. You might need to add these sections and options rather than modifying existing sections and options. Also, an ellipsis (`...`) in the configuration snippets indicates potential default configuration options that you should retain.

Note

As of the Newton release, SUSE OpenStack packages are shipped with the upstream default configuration files. For example, `/etc/nova/nova.conf` has customizations in `/etc/nova/nova.conf.d/010-nova.conf`. While the following instructions modify the default configuration file, adding a new file in `/etc/nova/nova.conf.d` achieves the same result.

1. Install the packages:

       # zypper install \
           openstack-nova-api \
           openstack-nova-scheduler \
           openstack-nova-conductor \
           openstack-nova-novncproxy \
           iptables

2. Edit the `/etc/nova/nova.conf` file and complete the following actions:

   - In the `[DEFAULT]` section, enable only the compute and metadata APIs:

         [DEFAULT]
         # ...
         enabled_apis = osapi_compute,metadata

   - In the `[api_database]` and `[database]` sections, configure database access:

         [api_database]
         # ...
         connection = mysql+pymysql://nova:NOVA_DBPASS@controller/nova_api

         [database]
         # ...
         connection = mysql+pymysql://nova:NOVA_DBPASS@controller/nova

     Replace `NOVA_DBPASS` with the password you chose for the Compute databases.

   - In the `[DEFAULT]` section, configure `RabbitMQ` message queue access:

         [DEFAULT]
         # ...
         transport_url = rabbit://openstack:RABBIT_PASS@controller:5672/

     Replace `RABBIT_PASS` with the password you chose for the `openstack` account in `RabbitMQ`.

   - In the `[api]` and `[keystone_authtoken]` sections, configure Identity service access:

         [api]
         # ...
         auth_strategy = keystone

         [keystone_authtoken]
         # ...
         www_authenticate_uri = http://controller:5000/
         auth_url = http://controller:5000/
         memcached_servers = controller:11211
         auth_type = password
         project_domain_name = Default
         user_domain_name = Default
         project_name = service
         username = nova
         password = NOVA_PASS

     Replace `NOVA_PASS` with the password you chose for the `nova` user in the Identity service.

     Note

     Comment out or remove any other options in the `[keystone_authtoken]` section.

   - In the `[service_user]` section, configure service user tokens:

         [service_user]
         send_service_user_token = true
         auth_url = https://controller/identity
         auth_strategy = keystone
         auth_type = password
         project_domain_name = Default
         project_name = service
         user_domain_name = Default
         username = nova
         password = NOVA_PASS

     Replace `NOVA_PASS` with the password you chose for the `nova` user in the Identity service.

   - In the `[DEFAULT]` section, configure the `my_ip` option to use the management interface IP address of the controller node:

         [DEFAULT]
         # ...
         my_ip = 10.0.0.11

   - Configure the `[neutron]` section of /etc/nova/nova.conf. Refer to the Networking service install guide for more details.

   - In the `[vnc]` section, configure the VNC proxy to use the management interface IP address of the controller node:

         [vnc]
         enabled = true
         # ...
         server_listen = $my_ip
         server_proxyclient_address = $my_ip

   - In the `[glance]` section, configure the location of the Image service API:

         [glance]
         # ...
         api_servers = http://controller:9292

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

         [oslo_concurrency]
         # ...
         lock_path = /var/run/nova

   - In the `[placement]` section, configure access to the Placement service:

         [placement]
         # ...
         region_name = RegionOne
         project_domain_name = Default
         project_name = service
         auth_type = password
         user_domain_name = Default
         auth_url = http://controller:5000/v3
         username = placement
         password = PLACEMENT_PASS

     Replace `PLACEMENT_PASS` with the password you choose for the `placement` service user created when installing Placement. Comment out or remove any other options in the `[placement]` section.

3. Populate the `nova-api` database:

       # su -s /bin/sh -c "nova-manage api_db sync" nova

   Note

   Ignore any deprecation messages in this output.

4. Register the `cell0` database:

       # su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova

5. Create the `cell1` cell:

       # su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova

6. Populate the nova database:

       # su -s /bin/sh -c "nova-manage db sync" nova

7. Verify nova cell0 and cell1 are registered correctly:

       # su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
       +-------+--------------------------------------+----------------------------------------------------+--------------------------------------------------------------+----------+
       |  Name |                 UUID                 |                   Transport URL                    |                     Database Connection                      | Disabled |
       +-------+--------------------------------------+----------------------------------------------------+--------------------------------------------------------------+----------+
       | cell0 | 00000000-0000-0000-0000-000000000000 |                       none:/                       | mysql+pymysql://nova:****@controller/nova_cell0?charset=utf8 |  False   |
       | cell1 | f690f4fd-2bc5-4f15-8145-db561a7b9d3d | rabbit://openstack:****@controller:5672/nova_cell1 | mysql+pymysql://nova:****@controller/nova_cell1?charset=utf8 |  False   |
       +-------+--------------------------------------+----------------------------------------------------+--------------------------------------------------------------+----------+

## Finalize installation

- Start the Compute services and configure them to start when the system boots:

      # systemctl enable \
          openstack-nova-api.service \
          openstack-nova-scheduler.service \
          openstack-nova-conductor.service \
          openstack-nova-novncproxy.service
      # systemctl start \
          openstack-nova-api.service \
          openstack-nova-scheduler.service \
          openstack-nova-conductor.service \
          openstack-nova-novncproxy.service

this page last updated: 2026-04-14 07:16:25

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