Peter Bacsko created YUNIKORN-2475:
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Summary: Add support for K8s native sidecars (restartable init
containers)
Key: YUNIKORN-2475
URL: https://issues.apache.org/jira/browse/YUNIKORN-2475
Project: Apache YuniKorn
Issue Type: Improvement
Components: shim - kubernetes
Reporter: Peter Bacsko
Assignee: Peter Bacsko
K8s v1.28 added support for [native
sidecars|https://kubernetes.io/blog/2023/08/25/native-sidecar-containers/].
This introduces restartable init containers, eg. init containers that keep
running along with the main ones.
The changes resource request calculations. A [helper
method|https://github.com/kubernetes/kubernetes/blob/c73ab5162b43356414908d7260fea29af6d4be1e/pkg/api/v1/resource/helpers.go#L50)]
in the K8s codebase is available for resource calculations. However, this
seems to be too complicated and inefficient.
Our options are:
1. Change our existing code in the shim with the necessary changes.
2. Re-use the {{GetPodResources()}} function from K8s.
If we keep our own code, I recommend that we create unit tests that perform
comparison between the two.
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