15.10. Attaching a watchdog device to a virtual machine by using the web console

To force the virtual machine (VM) to perform a specified action when it stops responding, you can attach virtual watchdog devices to a VM.

Prerequisites

You have installed the RHEL 10 web console.
For instructions, see Installing and enabling the web console.
You have installed the web console VM plugin on your system. For more information, see Setting up the web console to manage virtual machines.

Procedure

On the command line, install the watchdog service.
# dnf install watchdog
Shut down the VM.
Add the watchdog service to the VM.
# virt-xml vmname --add-device --watchdog action=reset --update
Run the VM.
Log in to the RHEL 10 web console.
In the Virtual Machines interface of the web console, click on the VM to which you want to add the watchdog device.
Click add next to the Watchdog field in the Overview pane.
The Add watchdog device type dialog is displayed.
Select the action that you want the watchdog device to perform if the VM stops responding.
Click Add.

Verification

The action you selected is visible next to the Watchdog field in the Overview pane.