1. CentOS Infra issue/request

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1. 1. Issue Type

[] Issue
[] Feature Request
[x] Task

1. 1. Description

While waiting for network, we can still prepare "logically" the future layout of machines/services in rdu3.
Especially true for bootstrap infra/deployment there and so start thinking about specific dns zones, etc
Adding all that into Ansible and we'll iterate on network subnets/ranges when we'll have details