Design a large scale architecture for ecommerce marketplace based on Odoo

General information for the website: Multi vendor marketplace for education using Odoo community edition
Kind of development: Customization of existing website
Description of requirements/features: We have implemented multi vendor marketplace for education using Odoo version 10 community edition
in www.edulux.id. This website allows multiple sellers to sell goods and allows buyers to buy goods.
We use marketplace multivendor module from Webkul.

Could you please help us write a design document for a large scale architecture for ecommerce
marketplace based on Odoo community edition?

The large scale architecture should involve multiple workers in a server, multiple servers, microservices
architecture, Redis cache or memcached, master-slave postgresql databases, distributed file system such as glusterfs.
A step by step implementation plan will be helpful.
How will we customize the Odoo with microservices?
How will we customize the Odoo with Redis cache or the memcached?
How do we use Varnish to accelerate Web content delivery?
Server configuration: number of CPU cores, memory size, disk size?
Topology of networked servers?
How will we monitor the Odoo performance?

Here are some references on how to scale Odoo performance for a large number of users:
https://www.rosehosting.com/blog/how-to-speed-up-odoo/
https://www.slideshare.net/openobject/performance2014-35689113
https://www.odoo.com/slides/slide/performance-tips-tricks-399
https://www.odoo.com/slides/slide/how-to-optimize-the-performance-229/pdf_content
https://www.youtube.com/watch?v=A_BWyFeGgVA

Deliverable:
A detailed design document for a large scale multi vendor marketplace for education using Odoo version 10 community edition.

Thank you.
Husni Fahmi
Specific technologies required: odoo, python, postgresql, microservices, redis, memcached, varnish
Extra notes: