Add virt.pool_get_xml function

Users may want to see the full XML definition of a virtual storage pool.

salt/modules/virt.py

@@ -5352,6 +5352,30 @@ def _pool_extract_infos(pool):
     return result
 
 
+def pool_get_xml(name, **kwargs):
+    '''
+    Return the XML definition of a virtual storage pool
+
+    :param name: libvirt storage pool name
+    :param connection: libvirt connection URI, overriding defaults
+    :param username: username to connect with, overriding defaults
+    :param password: password to connect with, overriding defaults
+
+    .. versionadded:: Neon
+
+    CLI Example:
+
+    .. code-block:: bash
+
+        salt '*' virt.pool_get_xml default
+    '''
+    conn = __get_conn(**kwargs)
+    try:
+        return conn.storagePoolLookupByName(name).XMLDesc()
+    finally:
+        conn.close()
+
+
 def pool_start(name, **kwargs):
     '''
     Start a defined libvirt storage pool.

tests/unit/modules/test_virt.py

@@ -2760,6 +2760,16 @@ def test_pool_info_all(self):
             }
         }, pool)
 
+    def test_pool_get_xml(self):
+        '''
+        Test virt.pool_get_xml
+        '''
+        pool_mock = MagicMock()
+        pool_mock.XMLDesc.return_value = '<pool>Raw XML</pool>'
+        self.mock_conn.storagePoolLookupByName.return_value = pool_mock
+
+        self.assertEqual('<pool>Raw XML</pool>', virt.pool_get_xml('default'))
+
     def test_pool_list_volumes(self):
         '''
         Test virt.pool_list_volumes