Proposal: support multi-version daemonset

[LinFCai]

Ⅰ. Describe what this PR does

Sometimes users may want to upgrade some daemon pods to version 1.1 and others to version 1.2 on specified nodes. For example, upgrade daemon pods in different CPU architecture nodes independently. A UnitedDaemonSet which is related to the existing DaemonSet can help users to achieve that. The controller will distribute multi-version pods of the existing DaemonSet according to UnitedDaemonSet subsets configuration.

Ⅱ. Does this pull request fix one issue?

None

Ⅲ. Describe how to verify it

None

Ⅳ. Special notes for reviews

None

[kruise-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[kruise-bot]

Welcome @LinFCai! It looks like this is your first PR to openkruise/kruise 🎉

[codecov-commenter]

Codecov Report

Merging #959 (a82fd2b) into master (5b52b6e) will decrease coverage by 0.03%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #959      +/-   ##
==========================================
- Coverage   49.99%   49.96%   -0.04%     
==========================================
  Files         119      119              
  Lines       11535    11535              
==========================================
- Hits         5767     5763       -4     
- Misses       4896     4898       +2     
- Partials      872      874       +2     

Flag	Coverage Δ
unittests	49.96% <ø> (-0.04%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/controller/cloneset/cloneset_controller.go	54.15% <0.00%> (-2.38%)	:arrow_down:
pkg/controller/daemonset/daemonset_update.go	55.75% <0.00%> (+0.88%)	:arrow_up:

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[LinFCai]

@FillZpp @furykerry we want to add a CRD to deploy multi-version daemon pods on different nodes and this is our idea, thanks.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[FillZpp]

@LinFCai You can you join the community meetings to discuss this.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.