add HANA add_hosts feature

salt/modules/hanamod.py

@@ -239,6 +239,36 @@ def install(
     except hana.HanaError as err:
         raise exceptions.CommandExecutionError(err)
 
+def add_hosts(
+        add_hosts,
+        hdblcm_folder,
+        root_user,
+        root_password,
+        hdb_pwd_file):
+    '''
+    Add additional hosts to SAP HANA system
+
+    add_hosts
+        hosts to add (same format as in hdblcm config)
+    hdblcm_folder
+        Path where hdblcm is installed
+    root_user
+        Root user name
+    root_password
+        Root user password
+    hdb_pwd_file
+        Path where XML password file exists
+    CLI Example:
+
+    .. code-block:: bash
+
+        salt '*' hana.add_hosts hana03:role=standby,hana05:role=worker /hana/shared/SID/hdblcm root root /root/hdb_passwords.xml
+    '''
+    try:
+        hana.HanaInstance.add_hosts(
+            add_hosts, hdblcm_folder, root_user, root_password, hdb_pwd_file)
+    except hana.HanaError as err:
+        raise exceptions.CommandExecutionError(err)
 
 def uninstall(
         root_user,

tests/unit/modules/test_hanamod.py

@@ -202,6 +202,32 @@ def test_install_raise(self, mock_hana):
             'software_path', 'hana.conf', 'root', 'root', 'hana.conf.xml')
         assert 'hana error' in str(err.value)
 
+    @patch('salt.modules.hanamod.hana.HanaInstance')
+    def test_add_hosts_return(self, mock_hana):
+        '''
+        Test add_hosts method - return
+        '''
+        mock_hana.add_hosts.return_value = 'hana.conf'
+        hanamod.add_hosts(
+            'add_hosts', 'hdblcm_folder', 'root', 'root', 'hdb_pwd_file')
+        mock_hana.add_hosts.assert_called_once_with(
+            'add_hosts', 'hdblcm_folder', 'root', 'root', 'hdb_pwd_file')
+
+    @patch('salt.modules.hanamod.hana.HanaInstance')
+    def test_add_hosts_raise(self, mock_hana):
+        '''
+        Test add_hosts method - raise
+        '''
+        mock_hana.add_hosts.side_effect = hanamod.hana.HanaError(
+            'hana error'
+        )
+        with pytest.raises(exceptions.CommandExecutionError) as err:
+            hanamod.add_hosts(
+                'add_hosts', 'hdblcm_folder', 'root', 'root', 'hdb_pwd_file')
+        mock_hana.add_hosts.assert_called_once_with(
+            'add_hosts', 'hdblcm_folder', 'root', 'root', 'hdb_pwd_file')
+        assert 'hana error' in str(err.value)
+
     def test_uninstall_return(self):
         '''
         Test uninstall method - return