I want to install   Openstack Xena version on a DELL ( R650  2 CPU and 40 cores . 2.4 TB) server machine.  Operating System preference is Debian 10.   I want to deploy this for production use with Ceph OSDs. 

There are four methods described in the URL  : Confused which to select. 

https://docs.openstack.org/xena/deploy/  

1. Using  Charms deployment

2. Deploy openstack using Ansible in Docker containers

3. Openstack - Ansible Deployment guide. 

4.  Triple O deployment guide

Which method do I have to follow  a full fledged  production deployment ? why ?

Going  ahead with Ansible and Docker is a  best option or not ?

Your kind guidance requested..

Thanks in advance,

Krish

ps:-

 Once Completed this installation I have to extend this as a High available(HA)  Multi Node cloud. (multi node production cloud with 3 Controllers, 6 compute Nodes and 3 Storage nodes with Ceph OSD pools) . 

Request to consider this future scalability requirement while answering my query.