Create a placement group

Last update: November 19 2024

Create a placement group

A placement group can be created:

• at cloud server creation — the created server will be automatically added to the group;
• or separately — the cloud server can be added to this group only when the server is created.

Control panel

1. In control panel go to Cloud platform → Servers.

2. Open the tab Accommodation groups.

3. Click Create a group.

4. Enter the name of the group.

5. Select an accommodation policy:

   • preferably on different hosts (soft-anti-affinity) — the system will try to place servers on different hosts. If there is no suitable host when creating a server, it will be created on the same host;
   • must be on different hosts (anti-affinity) — servers in the group must be on different hosts. If we cannot find a suitable host, the server will not be created.

6. Click Create a group.

OpenStack CLI

1. Open the OpenStack CLI.

2. Create a placement group:

   openstack server group create \
       --policy <policy> \
       --os-compute-api-version 2.15 \
       <placement_group_name>

   Specify:

   • <policy> — accommodation policy: anti-affinity, soft-anti-affinity;
   • <placement_group_name> — group name.