Support for live migration

src/vmm_mad/remotes/lib/vcenter_driver/virtual_machine.rb

@@ -2460,11 +2460,13 @@ class VirtualMachine < VCenterDriver::Template
         begin
             # retrieve host from DRS
             resourcepool = config[:cluster].resourcePool
+            host         = config[:cluster].host.first
             datastore    = config[:datastore]
 
             if datastore
                 relocate_spec_params = {
                     pool:      resourcepool,
+                    host:      host,
                     datastore: datastore,
                 }
 

src/vmm_mad/remotes/vcenter/migrate

@@ -32,12 +32,21 @@ require 'vcenter_driver'
 vm_id    = ARGV[-2]
 src_host = ARGV[-3]
 dst_host = ARGV[-4]
+dsid     = "111"
 
 begin
-    # TODO: grab destination ds
-    VCenterDriver::VirtualMachine.migrate_routine(vm_id,
-                                                  src_host,
-                                                  dst_host)
+
+    one_client = OpenNebula::Client.new
+    vm = OpenNebula::VirtualMachine.new_with_id(vm_id, one_client)
+    vm.info
+    src_ds = vm.retrieve_elements("HISTORY_RECORDS/HISTORY/DS_ID")[-2]
+
+    if src_ds == dsid
+        VCenterDriver::VirtualMachine.migrate_routine(vm_id, src_host,  dst_host)
+    else
+        VCenterDriver::VirtualMachine.migrate_routine(vm_id, src_host,  dst_host, dsid)
+    end
+
 rescue StandardError => e
     message = "Cannot migrate for VM #{vm_id}"\
               'failed due to '\