diff --git a/TestON/tests/HA/HAswapNodes/dependencies/onos-gen-partitions b/TestON/tests/HA/HAswapNodes/dependencies/onos-gen-partitions
new file mode 100755
index 0000000..ae7da6c
--- /dev/null
+++ b/TestON/tests/HA/HAswapNodes/dependencies/onos-gen-partitions
@@ -0,0 +1,87 @@
+#!/usr/bin/env python
+"""
+  Generate the partitions json file from the $OC* environment variables
+
+  Usage: onos-gen-partitions output_file [num_nodes] [-e]
+  If output file is not provided, the json is written to stdout.
+"""
+
+from os import environ
+from collections import deque, OrderedDict
+import re
+import json
+import sys
+import hashlib
+
+convert = lambda text: int(text) if text.isdigit() else text.lower()
+alphanum_key = lambda key: [convert(c) for c in re.split('([0-9]+)', key)]
+
+def get_OC_vars():
+  vars = []
+  for var in environ:
+    if re.match(r"OC[0-9]+", var):
+      vars.append(var)
+  return sorted(vars, key=alphanum_key)
+
+def get_nodes(vars, port=9876):
+  node = lambda k: { 'id': k, 'ip': k, 'port': port }
+  return [ node(environ[v]) for v in vars ]
+
+def generate_base_partition(nodes):
+  return {
+            'id': 0,
+            'members': nodes
+         }
+
+def generate_extended_partitions_scaling(nodes, k, partitions=3, equal=False):
+  l = deque(nodes)
+  perms = []
+  for i in range(1, partitions + 1):
+    if equal:
+      members = list(l)
+    else:
+      members = list(l)[:k]
+
+    part = {
+             'id': i,
+             'members': members
+           }
+    perms.append(part)
+    l.rotate(-2)
+  return perms
+
+if __name__ == '__main__':
+  vars = get_OC_vars()
+  # NOTE: likely prone to errors
+  nodes = get_nodes(vars)
+  num = None
+  equal = False
+  if len(sys.argv) >= 3:
+      num = int(sys.argv[2])
+      try:
+          equal = "-e" in sys.argv[3]
+      except:
+          equal = False
+  if num:
+      nodes = nodes[:num]
+
+  base_partition = generate_base_partition([v.get('id') for v in nodes])
+  extended_partitions = generate_extended_partitions_scaling([v.get('id') for v in nodes],
+          3, equal=equal)
+  partitions = []
+  partitions.append(base_partition)
+  partitions.extend(extended_partitions)
+  name = hash("HAScaling")
+  data = {
+           'name': name,
+           'nodes': nodes,
+           'partitions': partitions
+         }
+  output = json.dumps(data, indent=4)
+
+  if len(sys.argv) >= 2:
+    filename = sys.argv[1]
+    with open(filename, 'w') as f:
+      f.write(output)
+  else:
+    print output