vrf: T3344: move dynamic routing protocols under "vrf name <name> protocols"

Instead of having the dynamic routing protocols OSPF and BGP residing under
the "protocols vrf <name> [ospf|bgp]" nodes, rather move them directly under
the "vrf name <name> protocols [ospf|bgp]" node. Now all VRF related parts
are placed under the same root node.

This eases the verify steps tremendously, as we do not need to check wheter a
VRF eists or not, it will always exist as we operate under a child node.

1 files changed, 61 insertions, 0 deletions

diff --git a/src/migration-scripts/vrf/1-to-2 b/src/migration-scripts/vrf/1-to-2
new file mode 100755
index 000000000..20128e957
--- /dev/null
+++ b/src/migration-scripts/vrf/1-to-2
@@ -0,0 +1,61 @@
+#!/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/>.
+
+# - T3344: migrate routing options from "protocols vrf" to "vrf <name> protocols"
+
+from sys import argv
+from sys import exit
+from vyos.configtree import ConfigTree
+
+if (len(argv) < 2):
+    print("Must specify file name!")
+    exit(1)
+
+file_name = argv[1]
+
+with open(file_name, 'r') as f:
+    config_file = f.read()
+
+base = ['protocols', 'vrf']
+config = ConfigTree(config_file)
+
+if not config.exists(base):
+    # Nothing to do
+    exit(0)
+
+vrf_base = ['vrf', 'name']
+config.set(vrf_base)
+config.set_tag(vrf_base)
+
+# Copy all existing static routes to the new base node under "vrf name <name> protocols static"
+for vrf in config.list_nodes(base):
+    static_base = base + [vrf, 'static']
+    if not config.exists(static_base):
+        continue
+
+    new_static_base = vrf_base + [vrf, 'protocols']
+    config.set(new_static_base)
+    config.copy(static_base, new_static_base + ['static'])
+
+# Now delete the old configuration
+config.delete(base)
+
+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)