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Chapter 8. Managing project resource quotas

As a cloud administrator, you can set and manage resource quotas for projects in Red Hat OpenStack Services on OpenShift (RHOSO) to prevent resource exhaustion. Defining limits for compute, networking, and storage resources ensures fair usage among tenants and protects overall system stability.

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 pre-configured when a new project is created. The quotas include the amount of VCPUs, instances, RAM, and floating IPs that can be assigned to projects. You can use the OpenStack Dashboard to set or modify the Compute (nova) and Block Storage (cinder) quotas for new and existing projects.

8.1. Viewing user quotas for a project
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View compute, networking, and storage resource quotas in Red Hat OpenStack Services on OpenShift (RHOSO) to monitor resource consumption. Verifying usage against defined limits helps you troubleshoot why users cannot create new resources and determine when to adjust specific allowances.

Procedure

  • List the currently set quota values: 

    $ openstack quota show [PROJECT-ID]

    For example: 

    $ openstack quota show f0ba064c24ca4176ac55a45635ca561f
+-----------------------+-------+
| Resource              | Limit |
+-----------------------+-------+
| cores                 |    20 |
| instances             |    10 |
| ram                   | 51200 |
| volumes               |    10 |
| snapshots             |    10 |
| gigabytes             |  1000 |
| backups               |    10 |
| volumes___DEFAULT__   |    -1 |
| gigabytes___DEFAULT__ |    -1 |
| snapshots___DEFAULT__ |    -1 |
| groups                |    10 |
| trunk                 |    -1 |
| networks              |   100 |
| ports                 |   500 |
| rbac_policies         |    10 |
| routers               |    10 |
| subnets               |   100 |
| subnet_pools          |    -1 |
| fixed-ips             |    -1 |
| injected-file-size    | 10240 |
| injected-path-size    |   255 |
| injected-files        |     5 |
| key-pairs             |   100 |
| properties            |   128 |
| server-groups         |    10 |
| server-group-members  |    10 |
| floating-ips          |    50 |
| secgroup-rules        |   100 |
| secgroups             |    10 |
| backup-gigabytes      |  1000 |
| per-volume-gigabytes  |    -1 |
+-----------------------+-------+
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