# Instance Types

> Source: https://parallelworks.com/docs/organization-admin/cloud/cloud-accounts/instance-types

# Instance Types

This page explains how to manage the allowed instance types for cloud clusters at the organization level. Restricting instance types is useful when your users only need certain machine sizes for their work, or when you want to control costs by limiting access to expensive instance types.

## Configuring Allowed Instance Types

1. Navigate to **Organization > Cloud Accounts**.
2. Click the **Instance Types** button in the action bar.
3. The instance types page displays options for each cloud service provider. By default, all instance types are available.
4. To restrict the available instance types, deselect the types you do not want users to access. Only the selected instance types will appear when users configure cloud clusters.
5. Click **Save** to apply your changes. The new settings take effect immediately.

Instance type restrictions apply across the entire organization. Any user creating a cloud cluster will only be able to select from the allowed instance types.

## OpenStack Flavor Pricing

For OpenStack cloud accounts, ACTIVATE syncs the available flavors (instance types) from your OpenStack environment. Administrators can view and edit the cost per hour for each flavor. This pricing information is used for cost tracking and reporting within ACTIVATE.

To manage OpenStack flavor pricing:

1. Navigate to **Organization > Cloud Accounts** and click the name of an OpenStack cloud account.
2. On the cloud account detail page, scroll down to the **OpenStack Flavors** section. This table lists all flavors synced from your OpenStack environment, including their vCPUs, memory, disk size, and current cost per hour.
3. To update pricing, edit the **Cost/hr** value for any flavor.
4. Click **Save Costs** to apply the changes.

:::tip Stale Flavors

OpenStack flavors are periodically synced from your OpenStack environment. If a flavor appears as stale, the flavor may have been removed or modified in OpenStack since the last sync.

:::

## Organization Bootstrap Script

Administrators can configure a bootstrap script that runs on all cloud clusters before any user bootstrap or health check scripts execute. This script is accessible from the **Bootstrap Script** button on the Cloud Accounts page.

For more information, see [Organization Bootstrap Script](/docs/organization-admin/cloud/bootstrap-script).