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Fix for issue #73300. kube-proxy with IPVS and sctp traffic

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This commit is contained in:
Subrata Paul 2019-02-19 20:29:08 +05:30
parent 54240ce5ba
commit bf099d557e
1 changed files with 22 additions and 10 deletions
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32
pkg/proxy/ipvs/proxier.go
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@ -127,8 +127,8 @@ var ipsetInfo = []struct {
{kubeNodePortLocalSetTCP, utilipset.BitmapPort, kubeNodePortLocalSetTCPComment},
{kubeNodePortSetUDP, utilipset.BitmapPort, kubeNodePortSetUDPComment},
{kubeNodePortLocalSetUDP, utilipset.BitmapPort, kubeNodePortLocalSetUDPComment},
{kubeNodePortSetSCTP, utilipset.BitmapPort, kubeNodePortSetSCTPComment},
{kubeNodePortLocalSetSCTP, utilipset.BitmapPort, kubeNodePortLocalSetSCTPComment},
{kubeNodePortSetSCTP, utilipset.HashIPPort, kubeNodePortSetSCTPComment},
{kubeNodePortLocalSetSCTP, utilipset.HashIPPort, kubeNodePortLocalSetSCTPComment},
}
// ipsetWithIptablesChain is the ipsets list with iptables source chain and the chain jump to
@ -153,8 +153,8 @@ var ipsetWithIptablesChain = []struct {
{kubeNodePortSetTCP, string(KubeNodePortChain), string(KubeMarkMasqChain), "dst", "tcp"},
{kubeNodePortLocalSetUDP, string(KubeNodePortChain), "RETURN", "dst", "udp"},
{kubeNodePortSetUDP, string(KubeNodePortChain), string(KubeMarkMasqChain), "dst", "udp"},
{kubeNodePortSetSCTP, string(kubeServicesChain), string(KubeNodePortChain), "dst", "sctp"},
{kubeNodePortLocalSetSCTP, string(KubeNodePortChain), "RETURN", "dst", "sctp"},
{kubeNodePortSetSCTP, string(KubeNodePortChain), string(KubeMarkMasqChain), "dst,dst", "sctp"},
{kubeNodePortLocalSetSCTP, string(KubeNodePortChain), "RETURN", "dst,dst", "sctp"},
}
// In IPVS proxy mode, the following flags need to be set
@ -1088,20 +1088,32 @@ func (proxier *Proxier) syncProxyRules() {
// Nodeports need SNAT, unless they're local.
// ipset call
entry = &utilipset.Entry{
// No need to provide ip info
Port: svcInfo.NodePort,
Protocol: protocol,
SetType: utilipset.BitmapPort,
}
var nodePortSet *IPSet
switch protocol {
case "tcp":
nodePortSet = proxier.ipsetList[kubeNodePortSetTCP]
entry = &utilipset.Entry{
// No need to provide ip info
Port: svcInfo.NodePort,
Protocol: protocol,
SetType: utilipset.BitmapPort,
}
case "udp":
nodePortSet = proxier.ipsetList[kubeNodePortSetUDP]
entry = &utilipset.Entry{
// No need to provide ip info
Port: svcInfo.NodePort,
Protocol: protocol,
SetType: utilipset.BitmapPort,
}
case "sctp":
nodePortSet = proxier.ipsetList[kubeNodePortSetSCTP]
entry = &utilipset.Entry{
IP: proxier.nodeIP.String(),
Port: svcInfo.NodePort,
Protocol: protocol,
SetType: utilipset.HashIPPort,
}
default:
// It should never hit
klog.Errorf("Unsupported protocol type: %s", protocol)