Enable VRDE option for VMs in vbox scripts

VRDE option makes VMs accessible via RDP.
Fix vboxmanage to run via execute decorator.

Closes-Bug: #1498889
Change-Id: I93560126940457518fc4385c0518ab00d4b3d800

actions/master-node-create-and-install.sh

@@ -43,6 +43,11 @@ add_nat_adapter_to_vm $name 3 $vm_master_nat_network
 # Mount ISO with installer
 mount_iso_to_vm $name $iso_path
 
+#add RDP connection
+if [ ${headless} -eq 1 ]; then
+  enable_vrde $name ${RDPport}
+fi
+
 # Start virtual machine with the master node
 echo
 start_vm $name

actions/slave-nodes-create-and-boot.sh

@@ -50,8 +50,14 @@ for idx in $(eval echo {1..$cluster_size}); do
   add_disk_to_vm $name 2 $vm_slave_third_disk_mb
 
   #add NIC1 MAC to description
-  mac=$(vboxmanage showvminfo $name |awk -F ': ' '$1~/NIC 1/ {mac=gensub(/^.+ MAC: ([0-9A-F]{12}).+$/,"\\1","g",$0);print mac}')
-  vboxmanage modifyvm $name --description $mac
+  mac=$(execute vboxmanage showvminfo $name |awk -F ': ' '$1~/NIC 1/ {mac=gensub(/^.+ MAC: ([0-9A-F]{12}).+$/,"\\1","g",$0);print mac}')
+  execute vboxmanage modifyvm $name --description $mac
+
+  #add RDP connection
+  if [ ${headless} -eq 1 ]; then
+    enable_vrde $name $((${RDPport} + idx))
+  fi
+
   enable_network_boot_for_vm $name
 
   # The delay required for downloading tftp boot image

config.sh

@@ -181,4 +181,5 @@ vm_slave_third_disk_mb=65535
 
 # Set to 1 to run VirtualBox in headless mode
 headless=0
+RDPport=5000
 skipfuelmenu="no"

functions/vm.sh

@@ -223,3 +223,12 @@ enable_network_boot_for_vm() {
     # Set the right boot priority
     execute VBoxManage modifyvm $name --boot1 net --boot2 disk --boot3 none --boot4 none --nicbootprio1 1
 }
+
+enable_vrde(){
+    name=$1
+    port=${2:-$RDPport}
+
+    # Enable VRDE, set port and address
+    execute VBoxManage modifyvm $name --vrde on
+    execute VBoxManage modifyvm $name --vrdeport $port
+}