[RFC] Define Hard Eviction Limits on kubelet-extra-config

Bug #1921524 reported by Peter Jose De Sousa
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
Kubernetes Worker Charm
Triaged
Wishlist
Unassigned

Bug Description

Sister bug of: https://bugs.launchpad.net/fce-templates/+bug/1921367

Hi,

When running Kubernetes in production there are cases where pods can aggressively consume memory and or CPU causing the node to become unreachable without a restart.

This can be solved on a per application basis with limits, but this relies on the user to define these limits rather than Kubernetes evicting when it's running out of memory.

This is a RFC to consider changing the charm setting the kubelet-extra-config arg on Charmed Kubernetes, preventing any application from consuming the node until failure.

Cheers,

Peter

Changed in charm-kubernetes-worker:
milestone: none → 1.21+ck1
George Kraft (cynerva)
Changed in charm-kubernetes-worker:
importance: Undecided → Wishlist
status: New → Triaged
George Kraft (cynerva)
Changed in charm-kubernetes-worker:
milestone: 1.21+ck1 → none
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