Transfer configure page to rst format

Signed-off-by: Ramona Rautenberg <rautenberg@osism.tech>
Change-Id: I15e057e8b47182ef9a31cdf5a744e0e255c479ad

doc/source/journey/configure.rst

@@ -0,0 +1,61 @@
+-------------------------
+Large Scale SIG/Configure
+-------------------------
+
+The first stage in the `Scaling Journey <https://docs.openstack.org/large-scale/journey/index.html>`_ is Configure.
+
+This stage is about fine-tuning configuration options and optimizing the parameters for your OpenStack cluster, so that it can handle additional load. The default values for configuration parameters in OpenStack are not always well-suited for handling scale, and OpenStack documentation does not always indicate which parameters to adjust with scale. This page aims to help answer those early questions.
+
+Once your cluster is properly configured to handle scale, you can go to the second stage of the Scaling Journey: `Monitor <https://wiki.openstack.org/wiki/Large_Scale_SIG/Monitor>`_.
+
+
+FAQ
+---
+
+Q: Which OpenStack distributions are recommended for use at large scale?
+
+A:
+
+Q: Which drivers or backends are recommended for use at large scale?
+
+A: 
+
+Q: Which parameters should I adjust in OpenStack components before tackling scale ?
+
+A: 
+   1. Number or workers for each service
+   2. DB connection (max_pool_size, max_overflow, etc.)
+
+
+Q: Which parameters should I adjust in RabbitMQ before tackling scale ?
+
+A: See `Large_Scale_Configuration_Rabbit <https://wiki.openstack.org/wiki/Large_Scale_Configuration_Rabbit>`_
+
+Q: Should I use memcached?
+
+A: Yes, it will help a lot keystone (memcached will be used to store tokens instead of asking for new tokens on each call)
+
+Q: Rabbitmq cluster seems hard to configure, what are the recommendations?
+
+A: See `Large_Scale_Configuration_Rabbit <https://wiki.openstack.org/wiki/Large_Scale_Configuration_Rabbit>`_
+
+
+Resources
+---------
+
+* `Large_Scale_Configuration_Guidelines <https://wiki.openstack.org/wiki/Large_Scale_Configuration_Guidelines>`_
+* Neutron backends performance comparison: https://thesaitech.wordpress.com/2019/02/15/a-comparative-study-of-openstack-networking-architectures/
+* Evaluation of performance before deployment
+
+  * https://superuser.openstack.org/articles/collaborations-cross-industries-openstack-neutron-and-discovery-open-science-initiative/
+  * Enos: https://github.com/BeyondTheClouds/enos and Enoslib: https://gitlab.inria.fr/discovery/enoslib
+
+
+Other SIG work on that stage
+----------------------------
+
+* Document better configuration defaults for large scale
+  
+  * Collect input at https://etherpad.opendev.org/p/large-scale-sig-documentation
+  * Curate content at `Large_Scale_Configuration_Guidelines <https://wiki.openstack.org/wiki/Large_Scale_Configuration_Guidelines>`_
+  * Push to official doc, pointing back to the guidelines page

doc/source/journey/index.rst

@@ -2,4 +2,11 @@
  The Scaling Journey
 =====================
 
+Contents:
+
+.. toctree::
+   :maxdepth: 2
+
+   configure
+
 WIP: Transfer the content from https://wiki.openstack.org/wiki/Large_Scale_SIG