User:ABorrero (WMF)/Notes/Onboarding notes

= First week =

Basically following what was planned at Wikimedia_Cloud_Services_team/Onboarding_Arturo.

= Infra =

Cloud have 2 main projects:
 * CloudVPS (Openstack)
 * Toolsforge

Toolsforge
System deployed inside CloudVPS (Openstack) as the tools tenant.

It runs 2 backends: gridengine, kubernetes

The main (i.e. most popular) tools are quary and paws.

Composition and naming scheme
The tools cluster is composed of:


 * tools-worker* <-- kubernetes node
 * tools-exec* <-- gridengine
 * 2 etcd clusters (1 kubernetes datastore for state, 1 flannel network overlay)

The kubernetes cluster has a flat network topology allowing each node (i.e. worker) to connect directly to each other. This is by using flannel.