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fix: disable APF feature flag to prevent readyz-blocking informers #30

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fix: disable APF feature flag to prevent readyz-blocking informers #30

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12 changes: 6 additions & 6 deletions cmd/ipam/serve.go
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Original file line number Diff line number Diff line change
Expand Up @@ -170,6 +170,12 @@ func NewIPAMServerOptions() *IPAMServerOptions {
opts.RecommendedOptions.Admission.RecommendedPluginOrder = []string{}
opts.RecommendedOptions.Admission.DefaultOffPlugins = nil

// APF is handled by the main kube-apiserver. Disabling it here prevents
// FeatureOptions.ApplyTo from calling utilflowcontrol.New(), which registers
// FlowSchema and PriorityLevelConfiguration informers on the shared informer
// factory. Those informers never sync (no APF access), blocking readyz.
opts.RecommendedOptions.Features.EnablePriorityAndFairness = false

return opts
}

Expand Down Expand Up @@ -231,12 +237,6 @@ func (o *IPAMServerOptions) Config() (*ipamapiserver.Config, error) {
return nil, fmt.Errorf("apply recommended options: %w", err)
}

// Delegating aggregated apiservers defer API Priority and Fairness to the
// main kube-apiserver. ApplyTo may re-initialize FlowControl, so nil it
// out here (after ApplyTo) to prevent the FlowSchema and
// PriorityLevelConfiguration informers from blocking readyz.
genericConfig.FlowControl = nil

codec := ipamapiserver.Codecs.LegacyCodec(ipamapiserver.Scheme.PrioritizedVersionsAllGroups()...)

pgGetter, err := pgstore.NewRESTOptionsGetter(o.PostgresDSN)
Expand Down
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