The Oracle VM Utilities include a messaging tool, which allows sending of key-value pairs to a virtual machine, or guest, and to retrieve messages from the guest. The ovm_vmmessage utility requires the Oracle VM Guest Additions to be installed on the guest virtual machine. The current edition of Oracle VM Guest Additions includes message channel and guest IP information.
The Oracle VM Guest Additions allows direct integration between guest software and the virtualization layer, to assist in orchestration and automation of complex, multi-virtual machine deployments. Features of the Oracle VM Guest Additions include:
Improved information about virtual machines within Oracle VM Manager, such as reporting on IP addressing.
Ability to use the template configuration facility to automatically configure virtual machines as they are first started.
Ability to send messages directly to a virtual machine from Oracle VM Manager to trigger programmed events.
Ability to query a virtual machine to obtain information pertaining to previous messages.
Ability to interact with the Oracle VM Utilities ovm_vmmessage command.