diff --git a/doc/feature_request/installing_isolated.rst b/doc/feature_request/installing_isolated.rst
new file mode 100644
index 0000000000..043037dc97
--- /dev/null
+++ b/doc/feature_request/installing_isolated.rst
@@ -0,0 +1,26 @@
+=============================================================================
+Installation script: ``--pypi-mirror``, ``--package-mirror`` and ``--venv-mirror``
+=============================================================================
+
+
+Use case
+--------
+
+Installation is pretty easy when there is an Internet connection available.
+And there is surely a number of Openstack uses when whole environment is isolated.
+In this case, we need somehow specify where installation script should take 
+required libs and packages.
+
+
+Problem description
+-------------------
+
+    #. Installation script can't work without direct Internet connection
+
+
+Possible solution #1
+--------------------
+
+    #. Add ``--pypi-mirror`` option to installation script.
+    #. Add ``--package-mirror`` option to installation script.
+    #. Add ``--venv-mirror`` option to installation script.