knative
Allow KnativeService update to stay to same scale, eg: Initial-scale=previous
/area autoscale
Describe the feature
It would be nice to be able to update service without changing their current scale
Situation:
So we have a bunch of knative services ( > 1800 ). With all of them having scale to zero enabled. They all do have different different docker image but they do share code. It's common to update that shared code sometimes and update all those knative service.
-
allow-scale-to-zero: "true" - Service 1 initial-scale = 1, current-scale = 3
- Service 2 initial-scale = 1, current-scale = 0
When updating the Services they all go back to their initial-scale instead of staying at their current scale. Meaning:
- Service 1 = current-scale = 1
- Service 2 = current-scale = 1
Even though autoscaler knows it needs more of Service 1 and none of Service 2.
My feature request: have a way to tell the autoscaler to put the initialScale to something like previous or current
See slack thread about the history on this: https://knative.slack.com/archives/C0186KU7STW/p1662038186291709
