Install Compute controller services

Install the Compute packages necessary for the controller node.

# apt-get install nova-api nova-cert nova-conductor nova-consoleauth \
  nova-novncproxy nova-scheduler python-novaclient

Compute stores information in a database. In this guide, we use a MySQL database on the controller node. Configure Compute with the database location and credentials. Replace NOVA_DBPASS with the password for the database that you will create in a later step.

Edit the [database] section in the /etc/nova/nova.conf file, adding it if necessary, to modify this key:

[database]
connection = mysql://nova:NOVA_DBPASS@controller/nova

Configure the Compute service to use the RabbitMQ message broker by setting these configuration keys in the [DEFAULT] configuration group of the /etc/nova/nova.conf file:

[DEFAULT]
...
rpc_backend = rabbit
rabbit_host = controller
rabbit_password = RABBIT_PASS

Set the my_ip, vncserver_listen, and vncserver_proxyclient_address configuration options to the management interface IP address of the controller node:

Edit the /etc/nova/nova.conf file and add these lines to the [DEFAULT] section:

[DEFAULT]
...
my_ip = 10.0.0.11
vncserver_listen = 10.0.0.11
vncserver_proxyclient_address = 10.0.0.11

By default, the Ubuntu packages create an SQLite database. Delete the nova.sqlite file created in the /var/lib/nova/ directory so that it does not get used by mistake:

# rm /var/lib/nova/nova.sqlite

Use the password you created previously to log in as root. Create a nova database user:

$ mysql -u root -p
mysql> CREATE DATABASE nova;
mysql> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
IDENTIFIED BY 'NOVA_DBPASS';
mysql> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
IDENTIFIED BY 'NOVA_DBPASS';

Create the Compute service tables:

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

Create a nova user that Compute uses to authenticate with the Identity Service. Use the service tenant and give the user the admin role:

$ keystone user-create --name=nova --pass=NOVA_PASS --email=[email protected]
$ keystone user-role-add --user=nova --tenant=service --role=admin

Configure Compute to use these credentials with the Identity Service running on the controller. Replace NOVA_PASS with your Compute password.

Edit the [DEFAULT] section in the /etc/nova/nova.conf file to add this key:

[DEFAULT]
...
auth_strategy = keystone

Add these keys to the [keystone_authtoken] section:

[keystone_authtoken]
...
auth_uri = http://controller:5000
auth_host = controller
auth_port = 35357
auth_protocol = http
admin_tenant_name = service
admin_user = nova
admin_password = NOVA_PASS

You must register Compute with the Identity Service so that other OpenStack services can locate it. Register the service and specify the endpoint:

$ keystone service-create --name=nova --type=compute \
  --description="OpenStack Compute"
$ keystone endpoint-create \
  --service-id=$(keystone service-list | awk '/ compute / {print $2}') \
  --publicurl=http://controller:8774/v2/%\(tenant_id\)s \
  --internalurl=http://controller:8774/v2/%\(tenant_id\)s \
  --adminurl=http://controller:8774/v2/%\(tenant_id\)s

Restart Compute services:

# service nova-api restart
# service nova-cert restart
# service nova-consoleauth restart
# service nova-scheduler restart
# service nova-conductor restart
# service nova-novncproxy restart

To verify your configuration, list available images:

$ nova image-list
+--------------------------------------+---------------------+--------+--------+
| ID                                   | Name                | Status | Server |
+--------------------------------------+---------------------+--------+--------+
| acafc7c0-40aa-4026-9673-b879898e1fc2 | cirros-0.3.2-x86_64 | ACTIVE |        |
+--------------------------------------+---------------------+--------+--------+