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Implements Service Internal Traffic Policy

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1. Add API definitions;
2. Add feature gate and drops the field when feature gate is not on;
3. Set default values for the field;
4. Add API Validation
5. add kube-proxy iptables and ipvs implementations
6. add tests
This commit is contained in:
Fangyuan Li
2020-11-15 23:59:58 -08:00
parent 9a9a9b014c
commit 7ed2f1d94d
28 changed files with 3463 additions and 58 deletions
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7
pkg/proxy/iptables/proxier.go
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@@ -1029,6 +1029,13 @@ func (proxier *Proxier) syncProxyRules() {
allEndpoints = proxy.FilterTopologyEndpoint(proxier.nodeLabels, svcInfo.TopologyKeys(), allEndpoints)
}
// 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.OnlyNodeLocalEndpointsForInternal() {
allEndpoints = proxy.FilterLocalEndpoint(svcInfo.InternalTrafficPolicy(), allEndpoints)
}
readyEndpoints := make([]proxy.Endpoint, 0, len(allEndpoints))
for _, endpoint := range allEndpoints {
if !endpoint.IsReady() {