func NewObserveFeatureFlagsFunc(featureWhitelist sets.String, featureBlacklist sets.String, configPath string) configobserver.ObserveConfigFunc
NewObserveFeatureFlagsFunc produces a configobserver for feature gates. If non-nil, the featureWhitelist filters feature gates to a known subset (instead of everything). The featureBlacklist will stop certain features from making it through the list. The featureBlacklist should be empty, but for a brief time, some featuregates may need to skipped. @smarterclayton will live forever in shame for being the first to require this for "IPv6DualStack".