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KEP Template: Add documentation to template about feature gates #3069

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Feb 5, 2022
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KEP Template: Add documentation to template about feature gates #3069

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18 changes: 15 additions & 3 deletions keps/NNNN-kep-template/README.md
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Expand Up @@ -277,12 +277,13 @@ when drafting this test plan.

Define graduation milestones.

These may be defined in terms of API maturity, or as something else. The KEP
should keep this high-level with a focus on what signals will be looked at to
determine graduation.
These may be defined in terms of API maturity, [feature gate] graduations, or as
something else. The KEP should keep this high-level with a focus on what
signals will be looked at to determine graduation.

Consider the following in developing the graduation criteria for this enhancement:
- [Maturity levels (`alpha`, `beta`, `stable`)][maturity-levels]
- [Feature gate][feature gate] lifecycle
- [Deprecation policy][deprecation-policy]

Clearly define what graduation means by either linking to the [API doc
Expand All @@ -292,6 +293,7 @@ or by redefining what graduation means.
In general we try to use the same stages (alpha, beta, GA), regardless of how the
functionality is accessed.

[feature gate]: https://git.k8s.io/community/contributors/devel/sig-architecture/feature-gates.md
[maturity-levels]: https://git.k8s.io/community/contributors/devel/sig-architecture/api_changes.md#alpha-beta-and-stable-versions
[deprecation-policy]: https://kubernetes.io/docs/reference/using-api/deprecation-policy/

Expand Down Expand Up @@ -395,6 +397,12 @@ This section must be completed when targeting alpha to a release.

<!--
Pick one of these and delete the rest.

Documentation is available on [feature gate lifecycle] and expectations, as
well as the [existing list] of feature gates.

[feature gate lifecycle]: https://git.k8s.io/community/contributors/devel/sig-architecture/feature-gates.md
[existing list]: https://kubernetes.io/docs/reference/command-line-tools-reference/feature-gates/
-->

- [ ] Feature gate (also fill in values in `kep.yaml`)
Expand All @@ -420,6 +428,10 @@ automations, so be extremely careful here.
Describe the consequences on existing workloads (e.g., if this is a runtime
feature, can it break the existing applications?).

Feature gates are typically disabled by setting the flag to `false` and
restarting the component. No other changes should be necessary to disable the
feature.

NOTE: Also set `disable-supported` to `true` or `false` in `kep.yaml`.
-->

Expand Down