As an administrative user, you can use the nova quota-* commands, which are provided by the python-novaclient package, to update the Compute service quotas for a specific tenant or tenant user, as well as update the quota defaults for a new tenant.

Compute quota descriptions

Quota name	Description
cores	Number of instance cores (VCPUs) allowed per tenant.
fixed-ips	Number of fixed IP addresses allowed per tenant. This number must be equal to or greater than the number of allowed instances.
floating-ips	Number of floating IP addresses allowed per tenant.
injected-file-content-bytes	Number of content bytes allowed per injected file.
injected-file-path-bytes	Length of injected file path.
injected-files	Number of injected files allowed per tenant.
instances	Number of instances allowed per tenant.
key-pairs	Number of key pairs allowed per user.
metadata-items	Number of metadata items allowed per instance.
ram	Megabytes of instance ram allowed per tenant.
security-groups	Number of security groups per tenant.
security-group-rules	Number of rules per security group.

List all default quotas for all tenants, as follows: $ nova quota-defaults For example: $ nova quota-defaults +-----------------------------+-------+ | Quota | Limit | +-----------------------------+-------+ | instances | 10 | | 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 | +-----------------------------+-------+ Update a default value for a new tenant, as follows: $ nova quota-class-update --key value default For example: $ nova quota-class-update --instances 15 default Place the tenant ID in a usable variable, as follows: $ tenant=$(keystone tenant-list | awk '/tenantName/ {print $2}') List the currently set quota values for a tenant, as follows: $ nova quota-show --tenant $tenant For example: $ nova quota-show --tenant $tenant +-----------------------------+-------+ | Quota | Limit | +-----------------------------+-------+ | instances | 10 | | 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 | +-----------------------------+-------+ Obtain the tenant ID, as follows: $ tenant=$(keystone tenant-list | awk '/tenantName/ {print $2}') Update a particular quota value, as follows: $ nova quota-update --quotaName quotaValue tenantID For example: $ nova quota-update --floating-ips 20 $tenant $ nova quota-show --tenant $tenant +-----------------------------+-------+ | Quota | Limit | +-----------------------------+-------+ | instances | 10 | | cores | 20 | | ram | 51200 | | floating_ips | 20 | | 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 | +-----------------------------+-------+ To view a list of options for the quota-update command, run: $ nova help quota-update

Place the user ID in a usable variable, as follows: $ tenantUser=$(keystone user-list | awk '/userName/ {print $2}') Place the user's tenant ID in a usable variable, as follows: $ tenant=$(keystone tenant-list | awk '/tenantName/ {print $2}') List the currently set quota values for a tenant user, as follows: $ nova quota-show --user $tenantUser --tenant $tenant For example: $ nova quota-show --user $tenantUser --tenant $tenant +-----------------------------+-------+ | Quota | Limit | +-----------------------------+-------+ | instances | 10 | | cores | 20 | | ram | 51200 | | floating_ips | 20 | | 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 | +-----------------------------+-------+ Place the user ID in a usable variable, as follows: $ tenantUser=$(keystone user-list | awk '/userName/ {print $2}') Place the user's tenant ID in a usable variable, as follows: $ tenant=$(keystone tenant-list | awk '/userName/ {print $2}') Update a particular quota value, as follows: $ nova quota-update --user $tenantUser --quotaName quotaValue $tenant For example: $ nova quota-update --user $tenantUser --floating-ips 12 $tenant $ nova quota-show --user $tenantUser --tenant $tenant +-----------------------------+-------+ | Quota | Limit | +-----------------------------+-------+ | instances | 10 | | cores | 20 | | ram | 51200 | | floating_ips | 12 | | 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 | +-----------------------------+-------+ To view a list of options for the quota-update command, run: $ nova help quota-update Use nova absolute-limits to get a list of the current quota values and the current quota usage. $ nova absolute-limits --tenant tenantName +-------------------------+-------+ | Name | Value | +-------------------------+-------+ | maxServerMeta | 128 | | maxPersonality | 5 | | maxImageMeta | 128 | | maxPersonalitySize | 10240 | | maxTotalRAMSize | 51200 | | maxSecurityGroupRules | 20 | | maxTotalKeypairs | 100 | | totalRAMUsed | 0 | | maxSecurityGroups | 10 | | totalFloatingIpsUsed | 0 | | totalInstancesUsed | 0 | | totalSecurityGroupsUsed | 0 | | maxTotalFloatingIps | 10 | | maxTotalInstances | 10 | | totalCoresUsed | 0 | | maxTotalCores | 20 | +-------------------------+-------+