Enhancement Description

• One-line enhancement description (can be used as a release note):

Graduate Server-side Get and Partial Objects to GA

• Kubernetes Enhancement Proposal:

Server-side columnar formatting and partial object metadata has been in beta since Kube 1.10 and as of 1.15 is consistently implemented and in wide use as part of kubectl and other web interfaces. This document outline required steps to graduate it to GA.

The user of server-side printing with CRDs and Aggregated APIs is common and is a key part of providing equivalence between built-in and extension APIs for administrator usability. We have not needed to update the schema since 1.10, proving that it is ready to ship. Promoting it to GA in 1.15 will allow us to declare the kubectl portion feature complete and remove the legacy printers, and also update controllers that would benefit from use of PartialObjectMetadata (garbage collector, namespace controller, and quota counter) without fear of deprecation. PartialObjectMetadata allows these controllers to perform protobuf list actions efficiently when retrieving only the core object metadata.

• Discussion Link:

• Primary contact (assignee): @smarterclayton

• Responsible SIGs: sig-api-machinery

• Enhancement target (which target equals to which milestone):

  • Alpha release target (x.y):
  • Beta release target (x.y):
  • Stable release target (x.y):

• Alpha

  • KEP (k/enhancements) update PR(s):
  • Code (k/k) update PR(s):
  • Docs (k/website) update PR(s):

• First version of this proposal merged.
• Server-side GET objects moved to v1 in 1.15

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