2 files changed, 65 insertions, 17 deletions
diff --git a/src/migration-scripts/system/20-to-21 b/src/migration-scripts/system/20-to-21
index ad41be646..1728995de 100755
--- a/src/migration-scripts/system/20-to-21
+++ b/src/migration-scripts/system/20-to-21
@@ -14,9 +14,11 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+# T3795: merge "system name-servers-dhcp" into "system name-server"
+
 import os
 
-from sys import exit, argv
+from sys import argv
 from vyos.configtree import ConfigTree
 
 if (len(argv) < 1):
@@ -27,27 +29,16 @@ file_name = argv[1]
 with open(file_name, 'r') as f:
     config_file = f.read()
 
-base = ['system', 'sysctl']
+base = ['system', 'name-servers-dhcp']
 config = ConfigTree(config_file)
-
 if not config.exists(base):
     # Nothing to do
     exit(0)
 
-for all_custom in ['all', 'custom']:
-    if config.exists(base + [all_custom]):
-        for key in config.list_nodes(base + [all_custom]):
-            tmp = config.return_value(base + [all_custom, key, 'value'])
-            config.set(base + ['parameter', key, 'value'], value=tmp)
-            config.set_tag(base + ['parameter'])
-        config.delete(base + [all_custom])
-
-for ipv4_param in ['net.ipv4.igmp_max_memberships', 'net.ipv4.ipfrag_time']:
-    if config.exists(base + [ipv4_param]):
-        tmp = config.return_value(base + [ipv4_param])
-        config.set(base + ['parameter', ipv4_param, 'value'], value=tmp)
-        config.set_tag(base + ['parameter'])
-        config.delete(base + [ipv4_param])
+for interface in config.return_values(base):
+    config.set(['system', 'name-server'], value=interface, replace=False)
+
+config.delete(base)
 
 try:
     with open(file_name, 'w') as f:
diff --git a/src/migration-scripts/system/21-to-22 b/src/migration-scripts/system/21-to-22
new file mode 100755
index 000000000..ad41be646
--- /dev/null
+++ b/src/migration-scripts/system/21-to-22
@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+
+from sys import exit, argv
+from vyos.configtree import ConfigTree
+
+if (len(argv) < 1):
+    print("Must specify file name!")
+    exit(1)
+
+file_name = argv[1]
+with open(file_name, 'r') as f:
+    config_file = f.read()
+
+base = ['system', 'sysctl']
+config = ConfigTree(config_file)
+
+if not config.exists(base):
+    # Nothing to do
+    exit(0)
+
+for all_custom in ['all', 'custom']:
+    if config.exists(base + [all_custom]):
+        for key in config.list_nodes(base + [all_custom]):
+            tmp = config.return_value(base + [all_custom, key, 'value'])
+            config.set(base + ['parameter', key, 'value'], value=tmp)
+            config.set_tag(base + ['parameter'])
+        config.delete(base + [all_custom])
+
+for ipv4_param in ['net.ipv4.igmp_max_memberships', 'net.ipv4.ipfrag_time']:
+    if config.exists(base + [ipv4_param]):
+        tmp = config.return_value(base + [ipv4_param])
+        config.set(base + ['parameter', ipv4_param, 'value'], value=tmp)
+        config.set_tag(base + ['parameter'])
+        config.delete(base + [ipv4_param])
+
+try:
+    with open(file_name, 'w') as f:
+        f.write(config.to_string())
+except OSError as e:
+    print("Failed to save the modified config: {}".format(e))
+    exit(1)