3 files changed, 106 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')
diff --git a/src/migration-scripts/isis/1-to-2 b/src/migration-scripts/isis/1-to-2
new file mode 100644
index 0000000..0fc92a6
--- /dev/null
+++ b/src/migration-scripts/isis/1-to-2
@@ -0,0 +1,27 @@
+# Copyright 2022-2024 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/>.
+
+# T4739 refactor, and remove "on" from segment routing from the configuration
+
+from vyos.configtree import ConfigTree
+
+def migrate(config: ConfigTree) -> None:
+    # Check if ISIS segment routing is configured. Then check if segment
+    # routing "on" exists, then delete the "on" as it is no longer needed.
+    # This is for global configuration.
+    if config.exists(['protocols', 'isis']):
+        if config.exists(['protocols', 'isis', 'segment-routing']):
+            if config.exists(['protocols', 'isis', 'segment-routing', 'enable']):
+                config.delete(['protocols', 'isis', 'segment-routing', 'enable'])
diff --git a/src/migration-scripts/isis/2-to-3 b/src/migration-scripts/isis/2-to-3
new file mode 100644
index 0000000..afb9f23
--- /dev/null
+++ b/src/migration-scripts/isis/2-to-3
@@ -0,0 +1,43 @@
+# Copyright 2023-2024 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/>.
+
+# T5150: Rework CLI definitions to apply route-maps between routing daemons
+#        and zebra/kernel
+
+from vyos.configtree import ConfigTree
+
+isis_base = ['protocols', 'isis']
+
+def migrate(config: ConfigTree) -> None:
+    # Check if IS-IS is configured - if so, migrate the CLI node
+    if config.exists(isis_base):
+        if config.exists(isis_base + ['route-map']):
+            tmp = config.return_value(isis_base + ['route-map'])
+
+            config.set(['system', 'ip', 'protocol', 'isis', 'route-map'], value=tmp)
+            config.set_tag(['system', 'ip', 'protocol'])
+            config.delete(isis_base + ['route-map'])
+
+    # Check if vrf names are configured. Check if IS-IS is configured - if so,
+    # migrate  the CLI node(s)
+    if config.exists(['vrf', 'name']):
+        for vrf in config.list_nodes(['vrf', 'name']):
+            vrf_base = ['vrf', 'name', vrf]
+            if config.exists(vrf_base + ['protocols', 'isis', 'route-map']):
+                tmp = config.return_value(vrf_base + ['protocols', 'isis', 'route-map'])
+
+                config.set(vrf_base + ['ip', 'protocol', 'isis', 'route-map'], value=tmp)
+                config.set_tag(vrf_base + ['ip', 'protocol', 'isis'])
+                config.delete(vrf_base + ['protocols', 'isis', 'route-map'])