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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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24
pkg/proxy/ipvs/proxier.go
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@@ -2057,21 +2057,15 @@ func (proxier *Proxier) syncEndpoint(svcPortName proxy.ServicePortName, onlyNode
endpoints := proxier.endpointsMap[svcPortName]
// 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 !onlyNodeLocalEndpoints && utilfeature.DefaultFeatureGate.Enabled(features.ServiceTopology) && utilfeature.DefaultFeatureGate.Enabled(features.EndpointSliceProxying) {
endpoints = proxy.FilterTopologyEndpoint(proxier.nodeLabels, proxier.serviceMap[svcPortName].TopologyKeys(), endpoints)
}
// Service InternalTrafficPolicy is only enabled when all of the
// following are true:
// 1. InternalTrafficPolicy is PreferLocal or Local
// 2. ServiceInternalTrafficPolicy feature gate is on
if utilfeature.DefaultFeatureGate.Enabled(features.ServiceInternalTrafficPolicy) && onlyNodeLocalEndpointsForInternal {
endpoints = proxy.FilterLocalEndpoint(proxier.serviceMap[svcPortName].InternalTrafficPolicy(), endpoints)
// 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.
svcInfo, ok := proxier.serviceMap[svcPortName]
if !ok {
klog.Warningf("Unable to filter endpoints due to missing Service info for %s", svcPortName)
} else {
endpoints = proxy.FilterEndpoints(endpoints, svcInfo, proxier.nodeLabels)
}
for _, epInfo := range endpoints {