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docs: remove runnerset limitation (#1225) 

This works great from testing now, this is no longer a limitation due to ARC now creating a statefulset per runner
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Callum Tait 2022-03-16 00:08:41 +00:00 committed by GitHub
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@ -448,7 +448,6 @@ Under the hood, `RunnerSet` relies on Kubernetes's `StatefulSet` and Mutating We
**Limitations** **Limitations**
* For autoscaling the `RunnerSet` kind only supports pull driven scaling or the `workflow_job` event for webhook driven scaling. * For autoscaling the `RunnerSet` kind only supports pull driven scaling or the `workflow_job` event for webhook driven scaling.
* A known down-side of relying on `StatefulSet` is that it misses a support for `maxUnavailable`. A `StatefulSet` basically works like `maxUnavailable: 1` in `Deployment`, which means that it can take down only one pod concurrently while doing a rolling-update of pods. Kubernetes 1.22 doesn't support customizing it yet so probably it takes more releases to arrive. See https://github.com/kubernetes/kubernetes/issues/68397 for more information.
### Autoscaling ### Autoscaling