As a CI eng., I want to ensure the same variable names are used to define the architecture of a cluster (or control plane/compute nodes/secondary architecture compute nodes  in case of mixed arch compute nodes) and that the logic to define the architecture of the nodes a cluster will consist of is consistent among the enabled cloud providers (e.g., same defaults, same set of values leading to similar results, etc...).

Current instances for single-arch clusters and multiarch day2 clusters:

architecture

ARCHITECTURE

OCP_ARCH

ARCH

ADDITIONAL_WORKER_ARCHITECTURE

Current instances for multi-arch day0 clusters:

CONTROL_ARCH

COMPUTE_ARCH

AC:

• Only one variable is used to determine the architecture of a single-arch cluster + 1 for the secondary architecture nodes of day2 mixarch clusters
• Two/Three variables are used for multi-arch compute nodes clusters at day0 (+ day2 scale up)

Other info:

https://redhat-internal.slack.com/archives/C01Q7NTBC87/p1721831593230219?thread_ts=1721658632.781539&cid=C01Q7NTBC87