Support RAM setting for VirtualBox VMs.

gns3server/modules/virtualbox/__init__.py

@@ -124,7 +124,17 @@ class VirtualBox(BaseManager):
                 continue  # ignore inaccessible VMs
             extra_data = yield from self.execute("getextradata", [vmname, "GNS3/Clone"])
             if not extra_data[0].strip() == "Value: yes":
-                vms.append(vmname)
+                # get the amount of RAM
+                info_results = yield from self.execute("showvminfo", [vmname, "--machinereadable"])
+                for info in info_results:
+                    try:
+                        name, value = info.split('=', 1)
+                        if name.strip() == "memory":
+                            ram = int(value.strip())
+                            break
+                    except ValueError:
+                        continue
+                vms.append({"vmname": vmname, "ram": ram})
         return vms
 
     @staticmethod

gns3server/modules/virtualbox/virtualbox_vm.py

@@ -67,6 +67,7 @@ class VirtualBoxVM(BaseVM):
         self._enable_remote_console = False
         self._vmname = vmname
         self._use_any_adapter = False
+        self._ram = 0
         self._adapter_type = "Intel PRO/1000 MT Desktop (82540EM)"
 
     def __json__(self):
@@ -80,6 +81,7 @@ class VirtualBoxVM(BaseVM):
                 "enable_remote_console": self.enable_remote_console,
                 "adapters": self._adapters,
                 "adapter_type": self.adapter_type,
+                "ram": self.ram,
                 "use_any_adapter": self.use_any_adapter}
 
     @asyncio.coroutine
@@ -152,6 +154,9 @@ class VirtualBoxVM(BaseVM):
         if self._adapters:
             yield from self.set_adapters(self._adapters)
 
+        vm_info = yield from self._get_vm_info()
+        self._ram = int(vm_info["memory"])
+
     @asyncio.coroutine
     def start(self):
         """
@@ -407,6 +412,32 @@ class VirtualBoxVM(BaseVM):
             self._stop_remote_console()
         self._enable_remote_console = enable_remote_console
 
+    @property
+    def ram(self):
+        """
+        Returns the amount of RAM allocated to this VirtualBox VM.
+
+        :returns: amount RAM in MB (integer)
+        """
+
+        return self._ram
+
+    @asyncio.coroutine
+    def set_ram(self, ram):
+        """
+        Set the amount of RAM allocated to this VirtualBox VM.
+
+        :param ram: amount RAM in MB (integer)
+        """
+
+        if ram == 0:
+            return
+
+        yield from self._modify_vm('--memory {}'.format(ram))
+
+        log.info("VirtualBox VM '{name}' [{id}] has set amount of RAM to {ram}".format(name=self.name, id=self.id, ram=ram))
+        self._ram = ram
+
     @property
     def vmname(self):
         """