+def get_compute_quotas(nova, project_id):
+ """
+ Returns a list of all available keypairs
+ :param nova: the Nova client
+ :param project_id: the project's ID of the quotas to lookup
+ :return: an object of type ComputeQuotas or None if not found
+ """
+ quotas = nova.quotas.get(tenant_id=project_id)
+ if quotas:
+ return ComputeQuotas(quotas)
+
+
+def update_quotas(nova, project_id, compute_quotas):
+ """
+ Updates the compute quotas for a given project
+ :param nova: the Nova client
+ :param project_id: the project's ID that requires quota updates
+ :param compute_quotas: an object of type ComputeQuotas containing the
+ values to update
+ :return:
+ """
+ update_values = dict()
+ update_values['metadata_items'] = compute_quotas.metadata_items
+ update_values['cores'] = compute_quotas.cores
+ update_values['instances'] = compute_quotas.instances
+ update_values['injected_files'] = compute_quotas.injected_files
+ update_values['injected_file_content_bytes'] = compute_quotas.injected_file_content_bytes
+ update_values['ram'] = compute_quotas.ram
+ update_values['fixed_ips'] = compute_quotas.fixed_ips
+ update_values['key_pairs'] = compute_quotas.key_pairs
+
+ return nova.quotas.update(project_id, **update_values)
+
+