Quota support overview
The Public Cloud Gateway provides capabilities for quota management.
The following are the types of quota definitions in Public Cloud Gateway:
- A single global default quota that is used if no project level definitions are set.
- Per region and project quota set managed by the administration view in the project detail section.
The following quotas are supported in Public Cloud Gateway. This is
only a subset of the OpenStack defined
set:
- instances
- Total number of instances that can be provisioned.
- cores
- Total number of cores that can be consumed.
- ram
- Total RAM size in MB that can be consumed. Must be larger than the gigabytes quota value.
- gigabytes
- Largest size of a single volume in gigabytes.
- volumes
- Number of volumes that can be created.
- key_pairs
- Number of key pairs that can be created.
The following actions can be done on quotas:
- Set global quota defaults. Maintained within the Public Cloud Gateway configuration.
- Query and Set per project quota defaults. Maintained within the administration view in the project details.
- Delete a project quota. Supported only through OpenStack API calls. Not supported through the IBM® Cloud Orchestrator UI.
Assumptions:
- The Administrator of the Public Cloud Gateway region must ensure that the sum of the per project quota does not exceed the region capability.
- Quotas are enforced on a per project and region base.
- Quota calculation is based on the flavor values for virtual machine instances, the number of additional disks which are connected and the sshkey usage. For more information, see Configuring flavors.
- Quota calculation is done at certain intervals configurable in config.json. This means that there might be time frames were the actual situation in the remote cloud is different than reported through the quota management. For more information, see Configuring caching.
- Each remote cloud has some specific assumptions in flavor support and management that might impact the accuracy of the quota calculation. For more information, see Configuring flavors.
- The IBM Cloud Orchestrator Dashboard view uses the data from the quota management system within the Public Cloud Gateway.