tunnel: T3925: dhcp-interface was of no use - use source-interface instead

(cherry picked from commit c1015d8ce0013719eb898b60b14ffec192b8141c)

1 files changed, 46 insertions, 0 deletions

diff --git a/src/migration-scripts/interfaces/21-to-22 b/src/migration-scripts/interfaces/21-to-22
new file mode 100755
index 000000000..098102102
--- /dev/null
+++ b/src/migration-scripts/interfaces/21-to-22
@@ -0,0 +1,46 @@
+#!/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/>.
+
+from sys import 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()
+
+config = ConfigTree(config_file)
+base = ['interfaces', 'tunnel']
+
+if not config.exists(base):
+    exit(0)
+
+for interface in config.list_nodes(base):
+    path = base + [interface, 'dhcp-interface']
+    if config.exists(path):
+        tmp = config.return_value(path)
+        config.delete(path)
+        config.set(base + [interface, 'source-interface'], value=tmp)
+
+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)