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Drop broken/no-op proxyconfig.EndpointsHandler implementations

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Because the proxy.Provider interface included
proxyconfig.EndpointsHandler, all the backends needed to
implement its methods. But iptables, ipvs, and winkernel implemented
them as no-ops, and metaproxier had an implementation that wouldn't
actually work (because it couldn't handle Services with no active
Endpoints).

Since Endpoints processing in kube-proxy is deprecated (and can't be
re-enabled unless you're using a backend that doesn't support
EndpointSlice), remove proxyconfig.EndpointsHandler from the
definition of proxy.Provider and drop all the useless implementations.
This commit is contained in:
Dan Winship
2021-09-06 15:51:50 -04:00
parent eb729620c5
commit 7f6fbc4482
9 changed files with 8 additions and 240 deletions
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19
pkg/proxy/winkernel/proxier.go
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@@ -942,25 +942,6 @@ func shouldSkipService(svcName types.NamespacedName, service *v1.Service) bool {
return false
}
// The following methods exist to implement the proxier interface, however
// winkernel proxier only uses EndpointSlice, so the following are noops.
// OnEndpointsAdd is called whenever creation of new endpoints object
// is observed.
func (proxier *Proxier) OnEndpointsAdd(endpoints *v1.Endpoints) {}
// OnEndpointsUpdate is called whenever modification of an existing
// endpoints object is observed.
func (proxier *Proxier) OnEndpointsUpdate(oldEndpoints, endpoints *v1.Endpoints) {}
// OnEndpointsDelete is called whenever deletion of an existing endpoints
// object is observed.
func (proxier *Proxier) OnEndpointsDelete(endpoints *v1.Endpoints) {}
// OnEndpointsSynced is called once all the initial event handlers were
// called and the state is fully propagated to local cache.
func (proxier *Proxier) OnEndpointsSynced() {}
// OnEndpointSliceAdd is called whenever creation of a new endpoint slice object
// is observed.
func (proxier *Proxier) OnEndpointSliceAdd(endpointSlice *discovery.EndpointSlice) {