Enhancement Description

• One-line enhancement description (can be used as a release note): EndpointSlice controller can be configured to provide topology aware hints that will enable simple topology aware routing.
• Kubernetes Enhancement Proposal: https://github.com/kubernetes/enhancements/tree/master/keps/sig-network/2433-topology-aware-hints
• Discussion Link: https://docs.google.com/document/d/1ZzUoFY1SrdjVefl7gVOJZJLt1I1LHttw8pcX95nlgMY/edit
• Primary contact (assignee): @gauravkghildiyal
• Responsible SIGs: sig-network
• Enhancement target (which target equals to which milestone):
  • Alpha release target (x.y): v1.21
  • Beta release target (x.y): v1.23
  • Stable release target (x.y): v1.33
• Alpha
  • KEP (k/enhancements) update PR(s): KEP 2004: Evolving Topology Aware Routing for Services #2005
  • Code (k/k) update PR(s):
  • Docs (k/website) update PR(s):
• Beta
  • KEP (k/enhancements) update PR(s): KEP-2433: Removing traffic policy interoperability as beta graduation requirement #3043
  • Code (k/k) update PR(s):
    • 1.23 default false Graduate TopologyAwareHints feature gate to beta kubernetes#106433
    • 1.24 default true Updating TopologyAwareHints feature gate to be on by default kubernetes#108747
  • Docs (k/website) update PR(s): Mark that TopologyAwareHints feature is default on in 1.24 website#32361
• GA
  • KEP (k/enhancements) update PR(s):
    • 1.26 Updating Topology Aware Hints KEP with GA Graduation Criteria #3572
    • 1.27 KEP-2413: Graduate SeccompDefault to stable #3718, KEP-2433 Topology Aware Hints: Adding SameZone heuristic and other tweaks #3765
    • 1.28 KEP-2433: add new heuristic to topology routing #4003
    • 1.29-1.30 KEP-2433: Bumping stable target to 1.30 #4284
  • Code (k/k) update PR(s):
    • 1.29 TopologyAwareHints: Take lock in HasPopulatedHints kubernetes#118189
    • 1.33 Promote TopologyAwareHints feature-gate to GA kubernetes#130742
  • Docs (k/website) update PR(s):
• Post-GA Cleanup
  • Code (k/k) update PR(s): Drop TopologyAwareHints and ServiceTraficDistribution feature gates kubernetes#136112

/sig network