3.13. Attaching an ISO Image to a Virtual Machine

Get the reference to the "vms" service:
Find the virtual machine:
Locate the service that manages the virtual machine:
Locate the service that manages the CDROM devices of the VM:
List the first CDROM device:
Locate the service that manages the CDROM device you just found:
Change the CD of the VM to 'my_iso_file.iso'. By default this
operation permanently changes the disk that is visible to the
virtual machine after the next boot, but it does not have any effect
on the currently running virtual machine. If you want to change the
disk that is visible to the current running virtual machine, change
the current parameter's value to true.

# Get the reference to the "vms" service:
vms_service = connection.system_service.vms_service

# Find the virtual machine:
vm = vms_service.list(search: 'name=myvm')[0]

# Locate the service that manages the virtual machine:
vm_service = vms_service.vm_service(vm.id)

# Locate the service that manages the CDROM devices of the VM:
cdroms_service = vm_service.cdroms_service

# List the first CDROM device:
cdrom = cdroms_service.list[0]

# Locate the service that manages the CDROM device you just found:
cdrom_service = cdroms_service.cdrom_service(cdrom.id)

# Change the CD of the VM to 'my_iso_file.iso'. By default this
# operation permanently changes the disk that is visible to the
# virtual machine after the next boot, but it does not have any effect
# on the currently running virtual machine. If you want to change the
# disk that is visible to the current running virtual machine, change
# the current parameter's value to true.
cdrom_service.update(
  OvirtSDK4::Cdrom.new(
    file: {
      id: 'CentOS-7-x86_64-DVD-1511.iso'
    }
  ),
  current: false
)