conntrack: T3290: remove references to removed GRE plugins

(cherry picked from commit 91130ca7c386ecba291694ff08e521438d352e78)

1 files changed, 32 insertions, 0 deletions

diff --git a/src/migration-scripts/conntrack/1-to-2 b/src/migration-scripts/conntrack/1-to-2
new file mode 100755
index 000000000..4fc88a1ed
--- /dev/null
+++ b/src/migration-scripts/conntrack/1-to-2
@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+
+# Delete "set system conntrack modules gre" option
+
+import sys
+
+from vyos.configtree import ConfigTree
+
+if (len(sys.argv) < 1):
+    print("Must specify file name!")
+    sys.exit(1)
+
+file_name = sys.argv[1]
+
+with open(file_name, 'r') as f:
+    config_file = f.read()
+
+config = ConfigTree(config_file)
+
+if not config.exists(['system', 'conntrack', 'modules', 'gre']):
+    # Nothing to do
+    sys.exit(0)
+else:
+    # Delete abandoned node
+    config.delete(['system', 'conntrack', 'modules', 'gre'])
+
+    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))
+        sys.exit(1)