Enabling CPU and RAM hot plug per domain

To allow self-service users to add more CPU and RAM resources to virtual machines at run time, you can enable CPU and RAM hot plug for a particular domain. In domains that have this feature disabled, users will need to stop a virtual machine first, to be able to change its flavor. By default, CPU and RAM hot plug is disabled for all domains.

To enable CPU and RAM hot plug for a domain

Admin panel

On the Projects and users screen, click the required domain.
Switch to the Settings > CPU and RAM hot plug screen, and then enable CPU and RAM hot plug.

Command-line interface

Use the following command:

vinfra domain properties create --key <key> --data <data> [--access <access>] <domain>

--key <key>

Key name

--data <data>

Property sheet. Should be a valid JSON object.

--access <access>

Access type:

pub: grant read access to all users (authentication is not required)
auth: grant read access to authenticated users
domain: grant read access to domain users

The superadmin and domain admin have write access.

<domain>

Domain name or ID

For example, to create the property allow_live_resize that enables CPU and RAM hot plug for virtual machines within the domain mydomain, run:

# vinfra domain properties create --key allow_live_resize mydomain --data '{"enabled":true}'

The created property will appear in the vinfra domain properties keys list output:

# vinfra domain properties keys list
+----------+---------------------+
| domain   | keys                |
+----------+---------------------+
| mydomain | - allow_live_resize |
| Default  | - allow_live_resize |
+----------+---------------------+

To disable CPU and RAM hot plug for a domain