CentOS 7
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OpenStack Rocky : Configure Nova#12018/08/31
 
Install and Configure OpenStack Compute Service (Nova).
This example is based on the emvironment like follows. 
        eth0|10.0.0.30 
+-----------+-----------+
|    [ Control Node ]   |
|                       |
|  MariaDB    RabbitMQ  |
|  Memcached  httpd     |
|  Keystone   Glance    |
+-----------------------+
[1] Add users and others for Nova in Keystone.
# add nova user (set in service project)

[root@dlp ~(keystone)]#
openstack user create --domain default --project service --password servicepassword nova 

+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| default_project_id  | ece4ac6c7e764a979e36ba0b2faf848e |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 65cce0a2877d448b8731f3810f482a58 |
| name                | nova                             |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+
# add nova user in admin role

[root@dlp ~(keystone)]#
openstack role add --project service --user nova admin
# add placement user (set in service project)

[root@dlp ~(keystone)]#
openstack user create --domain default --project service --password servicepassword placement 

+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| default_project_id  | ece4ac6c7e764a979e36ba0b2faf848e |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 39aab11db8c8498099cedbf21357737c |
| name                | placement                        |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+
# add placement user in admin role

[root@dlp ~(keystone)]#
openstack role add --project service --user placement admin
# add service entry for nova

[root@dlp ~(keystone)]#
openstack service create --name nova --description "OpenStack Compute service" compute 

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Compute service        |
| enabled     | True                             |
| id          | 67e4e0cd6cbf4e98b45a5c2f5f038d74 |
| name        | nova                             |
| type        | compute                          |
+-------------+----------------------------------+
# add service entry for placement

[root@dlp ~(keystone)]#
openstack service create --name placement --description "OpenStack Compute Placement service" placement 

+-------------+-------------------------------------+
| Field       | Value                               |
+-------------+-------------------------------------+
| description | OpenStack Compute Placement service |
| enabled     | True                                |
| id          | 24b85f665fac4f4994a43a1c443291d9    |
| name        | placement                           |
| type        | placement                           |
+-------------+-------------------------------------+
# define keystone host

[root@dlp ~(keystone)]#
export controller=10.0.0.30
# add endpoint for nova (public)

[root@dlp ~(keystone)]#
openstack endpoint create --region RegionOne compute public http://$controller:8774/v2.1/%\(tenant_id\)s 

+--------------+------------------------------------------+
| Field        | Value                                    |
+--------------+------------------------------------------+
| enabled      | True                                     |
| id           | 8859e8a6be2747118d3efc6b2d039ecb         |
| interface    | public                                   |
| region       | RegionOne                                |
| region_id    | RegionOne                                |
| service_id   | 67e4e0cd6cbf4e98b45a5c2f5f038d74         |
| service_name | nova                                     |
| service_type | compute                                  |
| url          | http://10.0.0.30:8774/v2.1/%(tenant_id)s |
+--------------+------------------------------------------+
# add endpoint for nova (internal)

[root@dlp ~(keystone)]#
openstack endpoint create --region RegionOne compute internal http://$controller:8774/v2.1/%\(tenant_id\)s 

+--------------+------------------------------------------+
| Field        | Value                                    |
+--------------+------------------------------------------+
| enabled      | True                                     |
| id           | 47043348b3cc4db2aca25e26e7023481         |
| interface    | internal                                 |
| region       | RegionOne                                |
| region_id    | RegionOne                                |
| service_id   | 67e4e0cd6cbf4e98b45a5c2f5f038d74         |
| service_name | nova                                     |
| service_type | compute                                  |
| url          | http://10.0.0.30:8774/v2.1/%(tenant_id)s |
+--------------+------------------------------------------+
# add endpoint for nova (admin)

[root@dlp ~(keystone)]#
openstack endpoint create --region RegionOne compute admin http://$controller:8774/v2.1/%\(tenant_id\)s 

+--------------+------------------------------------------+
| Field        | Value                                    |
+--------------+------------------------------------------+
| enabled      | True                                     |
| id           | 2a68e8aabcba45319c490376392a5686         |
| interface    | admin                                    |
| region       | RegionOne                                |
| region_id    | RegionOne                                |
| service_id   | 67e4e0cd6cbf4e98b45a5c2f5f038d74         |
| service_name | nova                                     |
| service_type | compute                                  |
| url          | http://10.0.0.30:8774/v2.1/%(tenant_id)s |
+--------------+------------------------------------------+
# add endpoint for placement (public)

[root@dlp ~(keystone)]#
openstack endpoint create --region RegionOne placement public http://$controller:8778 

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 9ed03e0326ea4d8b998a93187dc20415 |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 24b85f665fac4f4994a43a1c443291d9 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://10.0.0.30:8778            |
+--------------+----------------------------------+
# add endpoint for placement (internal)

[root@dlp ~(keystone)]#
openstack endpoint create --region RegionOne placement internal http://$controller:8778 

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 8105847e4e304295a751ad90248220e5 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 24b85f665fac4f4994a43a1c443291d9 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://10.0.0.30:8778            |
+--------------+----------------------------------+
# add endpoint for placement (admin)

[root@dlp ~(keystone)]#
openstack endpoint create --region RegionOne placement admin http://$controller:8778 

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 7177a33ddf11463683b473dcd55453ca |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 24b85f665fac4f4994a43a1c443291d9 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://10.0.0.30:8778            |
+--------------+----------------------------------+
[2] Add a User and Database on MariaDB for Nova.
[root@dlp ~(keystone)]#
mysql -u root -p 

Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 24
Server version: 10.1.20-MariaDB MariaDB Server

Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]>
create database nova;

Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]>
grant all privileges on nova.* to nova@'localhost' identified by 'password';

Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]>
grant all privileges on nova.* to nova@'%' identified by 'password';

Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]>
create database nova_api;

Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]>
grant all privileges on nova_api.* to nova@'localhost' identified by 'password';

Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]>
grant all privileges on nova_api.* to nova@'%' identified by 'password';

Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]>
create database nova_placement;

Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]>
grant all privileges on nova_placement.* to nova@'localhost' identified by 'password';

Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]>
grant all privileges on nova_placement.* to nova@'%' identified by 'password';

Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]>
create database nova_cell0;

Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]>
grant all privileges on nova_cell0.* to nova@'localhost' identified by 'password';

Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]>
grant all privileges on nova_cell0.* to nova@'%' identified by 'password';

Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]>
flush privileges;

Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]>
exit

Bye
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