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Chapter 5. Quota management

As a cloud administrator, you can set and manage quotas for a project. Each project is allocated resources, and project users are granted access to consume these resources. This enables multiple projects to use a single cloud without interfering with each other’s permissions and resources. A set of resource quotas are preconfigured when a new project is created. The quotas include the amount of VCPUs, instances, RAM, and floating IPs that can be assigned to projects. Quotas can be enforced at both the project and the project-user level. You can set or modify Compute and Block Storage quotas for new and existing projects using the dashboard. For more information, see Managing projects.

5.1. Viewing Compute quotas for a user
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Run the following command to list the currently set quota values for a user.

Procedure

$ nova quota-show --user [USER-ID] --tenant [TENANT-ID]
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Example

$ nova quota-show --user 3b9763e4753843529db15085874b1e84 --tenant a4ee0cbb97e749dca6de584c0b1568a6
+-----------------------------+-------+
| Quota                       | Limit |
+-----------------------------+-------+
| instances                   | 10    |
| cores                       | 20    |
| ram                         | 51200 |
| floating_ips                | 5     |
| fixed_ips                   | -1    |
| metadata_items              | 128   |
| injected_files              | 5     |
| injected_file_content_bytes | 10240 |
| injected_file_path_bytes    | 255   |
| key_pairs                   | 100   |
| security_groups             | 10    |
| security_group_rules        | 20    |
| server_groups               | 10    |
| server_group_members        | 10    |
+-----------------------------+-------+
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5.2. Updating compute quotas for a user
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Run the following commands to update a particular quota value: 

$ nova quota-update --user [USER-ID] --[QUOTA_NAME] [QUOTA_VALUE] [TENANT-ID]
$ nova quota-show --user [USER-ID] --tenant [TENANT-ID]
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Example

$ nova quota-update --user 3b9763e4753843529db15085874b1e84 --floating-ips 10 a4ee0cbb97e749dca6de584c0b1568a6
$ nova quota-show --user 3b9763e4753843529db15085874b1e84 --tenant a4ee0cbb97e749dca6de584c0b1568a6
+-----------------------------+-------+
| Quota                       | Limit |
+-----------------------------+-------+
| instances                   | 10    |
| cores                       | 20    |
| ram                         | 51200 |
| floating_ips                | 10    |
| ...                         |       |
+-----------------------------+-------+
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Note

To view a list of options for the quota-update command, run: 

$ nova help quota-update
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5.3. Setting Object Storage quotas for a user
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Object Storage quotas can be classified under the following categories:

  • Container quotas - Limits the total size (in bytes) or number of objects that can be stored in a single container.
  • Account quotas - Limits the total size (in bytes) that a user has available in the Object Storage service.

To set either container quotas or the account quotas, the Object Storage proxy server must have the parameters container_quotas or account_quotas (or both) added to the [pipeline:main] section of the proxy-server.conf file: 

[pipeline:main]
pipeline = catch_errors [...] tempauth container-quotas \
account-quotas slo dlo proxy-logging proxy-server

[filter:account_quotas]
use = egg:swift#account_quotas

[filter:container_quotas]
use = egg:swift#container_quotas
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Use the following command to view and update the Object Storage quotas. All users included in a project can view the quotas placed on the project. To update the Object Storage quotas on a project, you must have the role of a ResellerAdmin in the project.

To view account quotas: 

# swift stat

Account: AUTH_b36ed2d326034beba0a9dd1fb19b70f9
Containers: 0
Objects: 0
Bytes: 0
Meta Quota-Bytes: 214748364800
X-Timestamp: 1351050521.29419
Content-Type: text/plain; charset=utf-8
Accept-Ranges: bytes
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To update quotas: 

# swift post -m quota-bytes:<BYTES>
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For example, to place a 5 GB quota on an account: 

# swift post -m quota-bytes:5368709120
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