[Feature Request] SandboxWarmPool should support scale subresource

[krzysied]

The SandboxWarmPool object should support scale subresource:

• this allow higher layer feature to autoscale the warm pool.
• this brings more standardization with well-known k8s controllers

The current setup either assumes the fixed size of the warm pool or custom mechanism to update the replicas.
With scale subresource the already established solutions can be used for autoscaling the warm pool allowing the adjustment of needed performance and price. E.g. installing HPA on top of the controller.

[kincoy]

Looking at the latest code, this seems to already be implemented — the scale subresource is defined in the CRD and the controller already handles spec.replicas / status.replicas / status.selector correctly.

agent-sandbox/k8s/crds/extensions.agents.x-k8s.io_sandboxwarmpools.yaml

Lines 69 to 74 in 32cddd3

	subresources:
	scale:
	labelSelectorPath: .status.selector
	specReplicasPath: .spec.replicas
	statusReplicasPath: .status.replicas
	status: {}