note that we don't change the behaviour of kubectl.
For example it won't scale new resources. That's the end goal.
The first step is to retrofit existing code to use the generic scaler.
Kubernetes-commit: dd9de90b0ad1aa78c2a8dd7d5238d8f769ffe771
This introduces a polymorphic scale client capable of operating against
scale subresources which return different group-versions of Scale. The
scale subresources may be in group-versions different than the scale
itself, so that we no longer need a copy of every scalable resource in
the extensions API group.
To discovery which Scale group-versions go to which subresources,
discovery is used.
The scale client maintains its own internal versions and conversions to
several external versions, with a "hub" version that's a copy of the
autoscaling internal version.
It currently supports the following group-versions for Scale subresources:
- extensions/v1beta1.Scale
- autoscaling/v1.Scale
Kubernetes-commit: d61a2d90372c301dd11088df8941acf2bb01c38c
