Install and configure¶

This section describes how to install and configure the Image service, code-named glance, on the controller node. For simplicity, this configuration stores images on the local file system.

Prerequisites¶

Before you install and configure the Image service, you must create a database, service credentials, and API endpoints.

To create the database, complete these steps:
- Use the database access client to connect to the database server as the root user:
```
$ mysql -u root -p
```
- Create the glance database:
```
CREATE DATABASE glance;
```
- Grant proper access to the glance database:
```
GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'localhost' \
  IDENTIFIED BY 'GLANCE_DBPASS';
GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%' \
  IDENTIFIED BY 'GLANCE_DBPASS';
```
  Replace GLANCE_DBPASS with a suitable password.
- Exit the database access client.
Source the admin credentials to gain access to admin-only CLI commands:
```
$ source admin-openrc.sh
```

To create the service credentials, complete these steps:

Create the glance user:

$ openstack user create --domain default --password-prompt glance
User Password:
Repeat User Password:
+-----------+----------------------------------+
| Field     | Value                            |
+-----------+----------------------------------+
| domain_id | default                          |
| enabled   | True                             |
| id        | e38230eeff474607805b596c91fa15d9 |
| name      | glance                           |
+-----------+----------------------------------+

Add the admin role to the glance user and service project:
```
$ openstack role add --project service --user glance admin
```
Note

This command provides no output.

Create the glance service entity:

$ openstack service create --name glance \
  --description "OpenStack Image service" image
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Image service          |
| enabled     | True                             |
| id          | 8c2c7f1b9b5049ea9e63757b5533e6d2 |
| name        | glance                           |
| type        | image                            |
+-------------+----------------------------------+

Create the Image service API endpoints:

$ openstack endpoint create --region RegionOne \
  image public http://controller:9292
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 340be3625e9b4239a6415d034e98aace |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 8c2c7f1b9b5049ea9e63757b5533e6d2 |
| service_name | glance                           |
| service_type | image                            |
| url          | http://controller:9292           |
+--------------+----------------------------------+

$ openstack endpoint create --region RegionOne \
  image internal http://controller:9292
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | a6e4b153c2ae4c919eccfdbb7dceb5d2 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 8c2c7f1b9b5049ea9e63757b5533e6d2 |
| service_name | glance                           |
| service_type | image                            |
| url          | http://controller:9292           |
+--------------+----------------------------------+

$ openstack endpoint create --region RegionOne \
  image admin http://controller:9292
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 0c37ed58103f4300a84ff125a539032d |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 8c2c7f1b9b5049ea9e63757b5533e6d2 |
| service_name | glance                           |
| service_type | image                            |
| url          | http://controller:9292           |
+--------------+----------------------------------+

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.

Install the packages:

# yum install openstack-glance python-glance python-glanceclient

Edit the /etc/glance/glance-api.conf file and complete the following actions:
- In the [database] section, configure database access:
```
[database]
...
connection = mysql://glance:GLANCE_DBPASS@controller/glance
```
  Replace GLANCE_DBPASS with the password you chose for the Image service database.
- In the [keystone_authtoken] and [paste_deploy] sections, configure Identity service access:
```
[keystone_authtoken]
...
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = glance
password = GLANCE_PASS

[paste_deploy]
...
flavor = keystone
```
  Replace GLANCE_PASS with the password you chose for the glance user in the Identity service.
  
  Note
  
  Comment out or remove any other options in the [keystone_authtoken] section.
- In the [glance_store] section, configure the local file system store and location of image files:
```
[glance_store]
...
default_store = file
filesystem_store_datadir = /var/lib/glance/images/
```
- In the [DEFAULT] section, configure the noop notification driver to disable notifications because they only pertain to the optional Telemetry service:
```
[DEFAULT]
...
notification_driver = noop
```
  The Telemetry chapter provides an Image service configuration that enables notifications.
- (Optional) To assist with troubleshooting, enable verbose logging in the [DEFAULT] section:
```
[DEFAULT]
...
verbose = True
```
Edit the /etc/glance/glance-registry.conf file and complete the following actions:
- In the [database] section, configure database access:
```
[database]
...
connection = mysql://glance:GLANCE_DBPASS@controller/glance
```
  Replace GLANCE_DBPASS with the password you chose for the Image service database.
- In the [keystone_authtoken] and [paste_deploy] sections, configure Identity service access:
```
[keystone_authtoken]
...
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = glance
password = GLANCE_PASS

[paste_deploy]
...
flavor = keystone
```
  Replace GLANCE_PASS with the password you chose for the glance user in the Identity service.
  
  Note
  
  Comment out or remove any other options in the [keystone_authtoken] section.
- In the [DEFAULT] section, configure the noop notification driver to disable notifications because they only pertain to the optional Telemetry service:
```
[DEFAULT]
...
notification_driver = noop
```
  The Telemetry chapter provides an Image service configuration that enables notifications.
- (Optional) To assist with troubleshooting, enable verbose logging in the [DEFAULT] section:
```
[DEFAULT]
...
verbose = True
```

Populate the Image service database:

# su -s /bin/sh -c "glance-manage db_sync" glance

Finalize installation¶

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

# systemctl enable openstack-glance-api.service \
  openstack-glance-registry.service
# systemctl start openstack-glance-api.service \
  openstack-glance-registry.service

Install and configure

Contents