version one of feature-gate prototype

featuregate-v1.go

type FeatureSpec struct {
        // Default is the default enablement state for the feature
        Default bool
        // DefaultEnabledVersion is the Kubernetes version that this feature is default enabled.
        DefaultEnabledVersion *string
        // LockToDefault indicates that the feature is locked to its default and cannot be changed
        LockToDefault bool
        // LockToDefaultVersion indicates from which version the feature is locked to its default and cannot be changed
        LockToDefaultVersion *string
        // PreRelease indicates the current maturity level of the feature
        PreRelease prerelease
        // PromotionVersionMap indicates the k8s version this feature was promoted
        PromotionVersionMap PromotionVersionMapping
        // DeprecatedVersion indicates the k8s version this feature was promoted
        DeprecatedVersion *string
}


var ExampleFeature = featuregate.Feature("stable_default_on"): {
      PreRelease:            featuregate.GA,
      Default:               true,
      DefaultEnabledVersion: stringPtr("1.28"),
      PromotionVersionMap: featuregate.PromotionVersionMapping{
          featuregate.Alpha: "1.27",
          featuregate.Beta:  "1.28",
          featuregate.GA:    "1.29",
      },
  }