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Glance barclamp
See all, Barclamp List
This is a Creole document
The Glance barclamp deploys Openstack's Image Service. The barclamp can be configured to deploy the sub-services of scrubber, reaper, and cache as well.
Glance is required for Nova and can be used as a stand-alone entity. It can be configured to use a MySQL instance for storage or a local sqlite database.
The Glance Barclamp provides a single role: glance-server. This role in conjunction with the proposal attributes drive the configuration and installation of the glance server.
The barclamp provides a single glance cookbook. The cookbook is used for glance installation.
The barclamp has the following parameters:
| Name | Default | Description |
| Working Directory | /var/lib/glance | Glance's operation home directory |
| PID Directory | /var/run/glance | Location of Glance's PID files |
| Notification Strategy | Noop | Unsupported in Crowbar notification system. Other strategies will one day be available. |
| Backing Type | file | Tells Glance where to put the images. file places images in the Image Store Directory. swift uses Swift. Swift is untested. |
| Image Store Directory | /var/lib/glance/images | Location of images when backing type is file |
Swift Parameters (Not tested)
| Name | Default | Description |
| Glance Swift Container | glance | String name of the container glance should use to store image |
| Swift Authentication URL | 127.0.0.1:8080/v1.0 | Connection String to access swift auth/proxy |
| Create Container | false | Automatically create the container for glance |
| Glance Swift User | glance | The default user for glance to use to access Swift |
| Glance Swift Key | glance | The password of the default user to access Swift |
| Use Keystone | true or false | The value is set based upon the prescence of an existing Keystone entry |
| Keystone Instance | String name of proposal | The Keystone instance to use |
| Use Syslog | false | Should glance log to syslog? |
Scrubber, Reaper, Pruner, Prefetcher, API, and Registry all have the common parameters.
| Name | Default | Description |
| Log File | /var/log/glance/XXX.log | The log file for that service. XXX is the name of the sub-service |
| Config File | /etc/glance/glance-XXX.conf | The configuration file for glance. XXX is the name of the sub-service. |
| Debug | false | Should the service run in debug mode |
| Verbose | true | should the service run in loud mode |
API and Registry have extra parameters
| Name | Default | Description |
| Bind to All Addresses | true | Bind address to 0.0.0.0 instead of the public address |
| Access Port | API: 9292 Registry: 9191 | The port the service should run on |
Caching - Glance can cache images
| Name | Default | Description |
| Enable Caching | false | Should caching be turned on |
| Directory | /var/lib/glance/image-cache | Where are the images cached |
| Grace Period | 3600 | Timeout for accessing the image |
| Stall Timeout | 86400 | Timeout to wait for a stalled get request |
Database - Parameters
| Name | Default | Description |
| Database Type | MySQL or sqlite | Which type of database to use. MySQL is selected if one is present. |
| SQL Idle Timeout | 3600 | MySQL Idle time check |
| MySQL Instance | String name of proposal | String name of proposal of a MySQL instance |
| SQLite Connection String | sqlite:var/lib/glance/glance.sqlite | String for sqlite database access |
Glance provides a glance-manage command that can be used to look at glance information.
An example that lists all images in glance.
glance-manage -A <admin token> -H <admin ip of glance-server> index