Create a placement group

Last update: February 22 2024

Create a placement group

A placement group can be created:

• when create cloud server — 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 Location Groups tab.

3. Click Create Group.

4. Enter the name of the group.

5. Select an accommodation policy:

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

6. Click Create Group.

OpenStack CLI

1. Open OpenStack CLI.

2. Create a placement group:

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

   Specify:

   • <policy> — placement policy: anti-affinity, soft-anti-affinity;
   • <placement_group_name> is the name of the group.