T6732: added same as vyos 1x

1 files changed, 36 insertions, 0 deletions

diff --git a/src/migration-scripts/isis/0-to-1 b/src/migration-scripts/isis/0-to-1
new file mode 100644
index 0000000..e242885
--- /dev/null
+++ b/src/migration-scripts/isis/0-to-1
@@ -0,0 +1,36 @@
+# Copyright 2021-2024 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+# T3417: migrate IS-IS tagNode to node as we can only have one IS-IS process
+
+from vyos.configtree import ConfigTree
+
+base = ['protocols', 'isis']
+
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(base):
+        # Nothing to do
+        return
+
+    # We need a temporary copy of the config
+    tmp_base = ['protocols', 'isis2']
+    config.copy(base, tmp_base)
+
+    # Now it's save to delete the old configuration
+    config.delete(base)
+
+    # Rename temporary copy to new final config (IS-IS domain key is static and no
+    # longer required to be set via CLI)
+    config.rename(tmp_base, 'isis')