Atom feed of this document
  
 

 Create and manage host aggregates

Host aggregates enable administrative users to assign key-value pairs to groups of machines.

Each node can have multiple aggregates and each aggregate can have multiple key-value pairs. You can assign the same key-value pair to multiple aggregates.

The scheduler uses this information to make scheduling decisions. For information, see Scheduling.

 

To create a host aggregate

  1. Log in to the dashboard.

    Choose the admin project from the CURRENT PROJECT drop-down list.

  2. On the Admin tab, click the Host Aggregates category.

  3. Click Create Host Aggregate.

  4. In the Create Host Aggregate window, enter or select the following values:

    Host Aggregate Info tab

    Name

    The host aggregate name.

    Availability Zone

    The cloud provider defines the default availability zone, such as us-west, apac-south, or nova.

    [Note]Note

    You can target the host aggregate, as follows:

    • When the host aggregate is exposed as an availability zone, select the availability zone when you launch an instance.

    • When the host aggregate is not exposed as an availability zone, select a flavor and its extra specs to target the host aggregate.

    Host within Aggregate tab

    Selected hosts

    To assign a host to the aggregate, click + for the host. The host moves from the All available hosts list to the Selected hosts list.

    [Note]Note

    You can add one host to one or more aggregates. To add a host later, edit the aggregate.

 

To manage host and aggregates

  1. Log in to the dashboard.

    Choose the admin project from the CURRENT PROJECT drop-down list.

  2. On the Admin tab, click the Host Aggregates category.

  3. To edit host aggregates:

    1. Select the host aggregate that you want to edit. Click Edit Host Aggregate.

    2. In the Edit Host Aggregate window, you can change the name and availability zone for the aggregate.

  4. To manage hosts:

    1. Select the host aggregate that you want to edit. Click More.

    2. In the Add/Remove Hosts to Aggregate window, click + to assign a host to the aggregate.

      Click - to remove a host that is assigned to an aggregate.

  5. To delete host aggregates:

    1. Select the host aggregate that you want to edit. Click More.

    2. Click the Delete Host Aggregate option.

Questions? Discuss on ask.openstack.org
Found an error? Report a bug against this page

loading table of contents...