Add support for a drop-in kubelet configuration directory

[haircommander]

Enhancement Description

• One-line enhancement description (can be used as a release note): Add support for a kubelet drop-in configuration directory
• Kubernetes Enhancement Proposal: https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/3983-drop-in-configuration
• Discussion Link: SIG-Node April 25th meeting SIG-Arch May 4 meeting
• Primary contact (assignee): @haircommander @sohankunkerkar
• Responsible SIGs: SIG-Node
• Enhancement target (which target equals to which milestone):
  • Alpha release target (x.y): 1.28
  • Beta release target (x.y): 1.30
  • Stable release target (x.y):
• Alpha
  • KEP (k/enhancements) update PR(s): KEP-3983: Add support for a drop-in kubelet configuration directory #4031, KEP 3983: target to beta for 1.29 #4242
  • Code (k/k) update PR(s): cmd/kubelet: implement drop-in configuration directory for kubelet kubernetes#119390, Retarget drop-in kubelet configuration dir feature to Alpha kubernetes#121193
  • Docs (k/website) update PR(s): Update documentation to reflect kubelet.conf.d changes for k8s 1.28 website#42013, docs: prepare KubeletConfigDropinDir to Beta website#43542
• Beta
  • KEP (k/enhancements) update PR(s):
    • 1.30 KEP-3983: target to beta for 1.30 #4419
    • 1.31 KEP-3983: update the beta requirements #4588
    • 1.32 kep-3983: update Beta requirements before moving to GA #4889
  • Code (k/k) update PR(s):
    • 1.30 [KEP-4419]: promote KubeletConfigDropInDir feature to beta kubernetes#122907
  • Docs (k/website) update(s):
    • [dev-1.30] docs: Update KubeletConfigDropinDir doc information website#45665
    • KEP 3983: placeholder for beta retarget website#48482
  • Other related PRs
    • Merge kubelet configuration files using versioned serialized data kubernetes#127421
    • kubelet: add flag for upconverting a component config kubernetes#125344
• Stable
  • KEP (k/enhancements) update PR(s):
    • KEP-3983: bump to stable #5602
  • Code (k/k) update PR(s):
  • Docs (k/website) update(s):

Please keep this description up to date. This will help the Enhancement Team to track the evolution of the enhancement efficiently.

[haircommander]

/sig node

[SergeyKanzhelev]

/milestone v1.28

Adding to the milestone for tracking based on discussions at sig node meeting.

[ffromani]

+1!!! (non binding)
@haircommander I'd love to help here to get this in kubelet

[SergeyKanzhelev]

/stage alpha

[SergeyKanzhelev]

/label lead-opted-in

[ruheenaansari34]

Hello @haircommander 👋, 1.28 Enhancements team here.

Just checking in as we approach enhancements freeze on 1:00 UTC on Friday 16th June 2023.

This enhancement is targeting stage alpha for 1.28 (correct me, if otherwise)

Here's where this enhancement currently stands:

• KEP readme using the latest template has been merged into the k/enhancements repo.
• KEP status is marked as implementable for latest-milestone: 1.28
• KEP readme has a updated detailed test plan section filled out
• KEP readme has up to date graduation criteria
• KEP has a production readiness review that has been completed and merged into k/enhancements.

For this KEP, we would need to take care of:

• Merging KEP update PR
• The KEP number seems to be incorrect ie., should this be 3983 instead of 3893?

The status of this enhancement is marked as at risk. Please keep the issue description up-to-date with appropriate stages as well. Thank you!