Find max OCF UID

staff/acct/max-uid

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+"""Find the highest non-excluded OCF UID."""
+import sys
+
+from ocflib.account.creation import IGNORED_UID_RANGES
+from ocflib.account.creation import RESERVED_UID_RANGES
+from ocflib.infra.ldap import ldap_ocf
+from ocflib.infra.ldap import OCF_LDAP_PEOPLE
+
+
+INVALID_UID_RANGES = sorted(RESERVED_UID_RANGES + IGNORED_UID_RANGES)
+
+
+def is_valid_uid(uid):
+    for start, end in IGNORED_UID_RANGES:
+        if start <= uid <= end:
+            return False
+    return True
+
+
+def main():
+    print('Searching for maximum currently used OCF UID')
+    with ldap_ocf() as c:
+        c.search(
+            OCF_LDAP_PEOPLE,
+            '(uid=*)',
+            attributes=['uidNumber']
+        )
+        uids = [int(entry['attributes']['uidNumber']) for entry in c.response]
+    uids = filter(is_valid_uid, uids)
+    print('Max currently used OCF UID is: %s' % max(uids))
+
+
+if __name__ == '__main__':
+    sys.exit(main())