[chef] Decomposed Chef Server install

["Ameir A." < >]

Hello,

We're currently running Chef Server with the monolithic installer, with 
everything running on one node; the only exception is that the bookshelf is 
backed by S3.

I've been asked to investigate resiliency, and in that effort, would like to 
split Chef Server up by its individual components, and offload what I can to 
managed services (like Redis And Postgres on Elasticache and RDS, 
respectively).

I found the following image, with a breakdown of the different components:
https://docs.chef.io/_images/chef_server_ha.svg

Suppose I were to split each component into its own Docker container (which 
isn't what I'm set on, necessarily, but for the sake of discussion); how 
would I do so?  Is it possible via the RPM/DEB packages to just install 
individual components?  Also, is it safe to assume that all state is present 
solely in Redis, Postgres, and Solr (and the bookshelf, of course)?

Any insight would be well-appreciated.

Thanks,
Ameir