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Adding support for TopologyAwareHints to kube-proxy

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This commit is contained in:
Rob Scott
2021-03-05 12:06:07 -08:00
parent 1dcf09c1bf
commit f07be06a19
12 changed files with 545 additions and 133 deletions
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20
pkg/proxy/iptables/proxier.go
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@@ -1020,22 +1020,12 @@ func (proxier *Proxier) syncProxyRules() {
allEndpoints := proxier.endpointsMap[svcName]
// Service Topology will not be enabled in the following cases:
// 1. externalTrafficPolicy=Local (mutually exclusive with service topology).
// 2. ServiceTopology is not enabled.
// 3. EndpointSlice is not enabled (service topology depends on endpoint slice
// to get topology information).
if !svcInfo.NodeLocalExternal() && utilfeature.DefaultFeatureGate.Enabled(features.ServiceTopology) && utilfeature.DefaultFeatureGate.Enabled(features.EndpointSliceProxying) {
allEndpoints = proxy.FilterTopologyEndpoint(proxier.nodeLabels, svcInfo.TopologyKeys(), allEndpoints)
}
// Filtering for topology aware endpoints. This function will only
// filter endpoints if appropriate feature gates are enabled and the
// Service does not have conflicting configuration such as
// externalTrafficPolicy=Local.
allEndpoints = proxy.FilterEndpoints(allEndpoints, svcInfo, proxier.nodeLabels)
// Service InternalTrafficPolicy is only enabled when all of the
// following are true:
// 1. InternalTrafficPolicy is Local
// 2. ServiceInternalTrafficPolicy feature gate is on
if utilfeature.DefaultFeatureGate.Enabled(features.ServiceInternalTrafficPolicy) && svcInfo.NodeLocalInternal() {
allEndpoints = proxy.FilterLocalEndpoint(svcInfo.InternalTrafficPolicy(), allEndpoints)
}
readyEndpoints := make([]proxy.Endpoint, 0, len(allEndpoints))
for _, endpoint := range allEndpoints {
if !endpoint.IsReady() {