Implement IPVS-based in-cluster service load balancing

Feature Description

• One-line feature description (can be used as a release note): Implement IPVS-based in-cluster service load balancing
• Primary contact (assignee): @m1093782566 (@quinton-hoole acting as proxy as @haibinxie is not yet a member of the K8s org)
• Responsible SIGs: sig-networking
• Design proposal link (community repo): See Implement IPVS-based in-cluster service load balancing kubernetes#44063
• Reviewer(s) - (for LGTM) recommend having 2+ reviewers (at least one from code-area OWNERS file) agreed to review. Reviewers from multiple companies preferred: @thockin @quinton-hoole
• Approver (likely from SIG/area to which feature belongs): @thockin
• Initial target stage (alpha/beta/stable) and release (x.y):
  • alpha in v1.8
  • beta in v1.9
  • GA in v1.10

cc: @kubernetes/sig-network-feature-requests

[smarterclayton]

Is this a dupe / replacement of #196?

[cmluciano]

As discussed in SIG-Network meeting, the proposal has not been finalized according to the issues linked in the description. These issues should be addressed prior to an official milestone assignment.

[m1093782566]

I raised a PR about design proposa of supporting ipvs mode for kube-proxy, please check

kubernetes/community#692

[idvoretskyi]

@quinton-hoole @kubernetes/sig-network-feature-requests any updates for 1.8? Is this feature still on track for the release?