You can look at how to change the default quota on Default compute quota post. In this post we are going to look how to change the compute quota for a specific tenant. First of all letś go to check the current quota for a tenant called tenant1 that if you have not changed it, it should be the same that the default one.
[root@os-controller-01 ~(keystone_admin)]# nova quota-show --tenant tenant1 +-----------------------------+-------+ | Quota | Limit | +-----------------------------+-------+ | instances | 15 | | cores | 20 | | ram | 51200 | | floating_ips | 10 | | 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 | +-----------------------------+-------+
To change for example the number of instances allowed for our tenant you have to execute the following command:
[root@os-controller-01 ~(keystone_admin)]# nova quota-update --instances 5 tenant1 [root@os-controller-01 ~(keystone_admin)]# nova quota-show --tenant tenant1 +-----------------------------+-------+ | Quota | Limit | +-----------------------------+-------+ | instances | 5 | | cores | 20 | | ram | 51200 | | floating_ips | 10 | | 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 | +-----------------------------+-------+
As you can see the quota has been updated only to allow 5 instances.
OpenStack Administration 