added vm define/undefine/export handlers

ccnode/handlers.py

@@ -526,6 +526,51 @@ class NodeHandler(RpcHandler):
             raise NotImplementedError('host handler has no method `%s`' %method)
     
     @pure
+    ##################################
+    #   VM management
+    ##################################
+    
+    @pure
+    def vm_define(self, data, format='xml'):
+        '''
+        '''
+        warning('vm_define: server requested creation of a new VM')
+        debug('vm_define: with description data `%s`' % data)
+        if hasattr(self._host_handle, 'vm_define'):
+            name = self._host_handle.vm_define(data)
+            debug('vm_define: new VM has name `%s`' % name)
+            return name
+        else:
+            raise NotImplementedError('host do not support VM creation')
+    
+    @pure
+    def vm_undefine(self, name):
+        '''
+        '''
+        warning('vm_undefine: server requested deletion of `%s`' % name)
+        if hasattr(self._host_handle, 'vm_get'):
+            vm = self._host_handle.vm_get(name)
+            if hasattr(vm, 'undefine'):
+                vm.undefine()
+            else:
+                raise NotImplementedError('VM object has not method `undefine`')
+        else:
+            raise NotImplementedError('host do not support ')
+    
+    @pure
+    def vm_export(self, name, format='xml'):
+        '''
+        '''
+        warning('vm_export: server requested configuration of `%s`' % name)
+        if hasattr(self._host_handle, 'vm_get'):
+            vm = self._host_handle.vm_get(name)
+            if hasattr(vm, 'get_config'):
+                return vm.get_config()
+            else:
+                raise NotImplementedError('VM object has not method `get_config`')
+        else:
+            raise NotImplementedError('host handler has not method `vm_get`')
+    
     def vm_stop(self, vm_names=None, force=False):
         '''
         '''

ccnode/libvirtwrapper.py

@@ -27,6 +27,7 @@ class LibvirtHypervisor(Hypervisor):
     def __init__(self, hv_type):
         '''
         '''
+        super(LibvirtHypervisor, self).__init__()
         try:
             if hv_type == 'kvm':
                 warning("LibvirtHypervisor: initialized as KVM")
@@ -127,6 +128,16 @@ class LibvirtHypervisor(Hypervisor):
         '''
         return self._sto_handle
     
+    def vm_define(self, data):
+        '''
+        '''
+        vm = self._lvcon_handle.defineXML(data)
+        self._cache_vm_rebuild()
+        if hasattr(vm, 'name'):
+            return vm.name()
+        else:
+            raise HypervisorError('VM not defined properly')
+    
     def vm_list(self):
         '''
         '''
@@ -445,6 +456,13 @@ class LibvirtVm(VM):
         '''
         return self._hv_handle
     
+    def undefine(self):
+        '''
+        '''
+        if self._domain.undefine():
+            raise VMError('deletion of VM `%s` failed' % self.get_name())
+        self._hv_handle._cache_vm_rebuild()
+    
     def power_on(self):
         '''
         '''
@@ -505,6 +523,11 @@ class LibvirtVm(VM):
             pass
         return paused
     
+    def get_config(self):
+        '''
+        '''
+        return self._domain.XMLDesc(0)
+    
     def get_uuid(self):
         '''
         '''