OpenNebula

This behavior should be configurable as it can leave VMs running in nodes that are not reachable or in race condition cases.

        # Delete all the nodes in this role
        # @return [Array<true, nil>] All the VMs are deleted, and the return
        #   ignored
        def delete
            get_nodes.each { |node|
                vm_id = node['deploy_id']

                Log.debug LOG_COMP, "Role #{name} : Deleting VM #{vm_id}", @service.id()

                vm = OpenNebula::VirtualMachine.new_with_id(vm_id, @service.client)
                rc = vm.terminate(true)

                if OpenNebula.is_error?(rc)
                    rc = vm.delete
                end

                if OpenNebula.is_error?(rc)
                    msg = "Role #{name} : Delete failed for VM #{vm_id}; #{rc.message}" 
                    Log.error LOG_COMP, msg, @service.id()
                    @service.log_error(msg)
                else
                    Log.debug LOG_COMP, "Role #{name} : Delete success for VM #{vm_id}", @service.id()
                end
            }

            return [true, nil]
        end