[autoscaler]

🏃 Others

[USER] Gardener Autoscaler now supports generic scale from zero. Traditionally, nodes are scaled by Autoscaler by generating node template for a new node that would accomodate the pending pods. This node template is generated either by referring to the node spec of the already existing node in the nodeGroup or by referring to the cloud provider specific catalogue which provides the node details like cpu, gpu, memory, region, zone, instanceType etc. The latter scenario is the scale from zero scenario where there are zero nodes in the nodeGroup that is expected to scale up and so far the existing logic limited this feature to AWS and Azure only. (gardener/autoscaler#102, @AxiomSamarth)
- Now, with the introduction of nodeTemplate property in the MachineClass, the scale from zero feature has been extended generically across all providers.