Handle volume scheduling when nodes are shutdown
yastij opened this issue · comments
Currently if a node gets shutdown, pods using volumes don't get rescheduled, Since we don't know if the volumes are still being used.
Two solutions:
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Create a flow that has an interlock between node lifecycle controller, taintManager, PodGC, attach_detach_controller and kubelet, one of the drawbacks of this solution is that we need to tie taint removal to finishing the eviction (more specifically to finishing volume detach)
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Rely on nodeReadiness Gate and let cloud provider implement a node condition shutdown, act upon it to detach the volume and remove it, one of the drawbacks of relying on condition is that we cannot tolerate them.
cc'ing folks involved for thoughts @smarterclayton @liggitt @andrewsykim @jingxu97 and @yujuhong
/assign
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/lifecycle stale
/remove-lifecycle stale
Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.
If this issue is safe to close now please do so with /close.
Send feedback to sig-testing, kubernetes/test-infra and/or fejta.
/lifecycle stale
/close
This probably belongs in SIG node going forward
@andrewsykim: Closing this issue.
In response to this:
/close
This probably belongs in SIG node going forward
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