Ephemeral storage limits added from nowhere

[zongsizhang]

Hi I'm hosting an ARC controller + some auto scaling runner set in EKS.
We recently found that, in the runners there are resources requests+limits for ephemeral storage applied

image: docker:dind
          name: dind
          resources:
            limits:
              ephemeral-storage: 50Gi
            requests:
              ephemeral-storage: 20Gi

While I can't find the specification anywhere in the helm-chart.
Can anyone help me understand where are the limits added and how to tune it?
Thanks!

[diogomatsubara]

@zongsizhang did you find out where those limits are set? I'm running into issue with a similar setup as your (ARC + EKS) where the pods are being evicted due to DiskPressure on the ephemeral-storage. My pod template doesn't set any limits/requests but it looks like there's some limit set. More storage was already added to the node without luck and pods keep being evicted. How did you get the limits/requests output you pasted above?