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change KUBE-XLB back to KUBE-FW

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This commit is contained in:
Minhan Xia 2016-08-17 18:12:51 -07:00
parent b31874fe82
commit 392a92c9fa
1 changed files with 12 additions and 12 deletions
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24
pkg/proxy/iptables/proxier.go
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@ -581,11 +581,11 @@ func servicePortChainName(s proxy.ServicePortName, protocol string) utiliptables
return utiliptables.Chain("KUBE-SVC-" + portProtoHash(s, protocol))
}
// externalLoadBalancerChainName takes the ServicePortName for a service and
// serviceFirewallChainName takes the ServicePortName for a service and
// returns the associated iptables chain. This is computed by hashing (sha256)
// then encoding to base32 and truncating with the prefix "KUBE-XLB-".
func externalLoadBalancerChainName(s proxy.ServicePortName, protocol string) utiliptables.Chain {
return utiliptables.Chain("KUBE-XLB-" + portProtoHash(s, protocol))
// then encoding to base32 and truncating with the prefix "KUBE-FW-".
func serviceFirewallChainName(s proxy.ServicePortName, protocol string) utiliptables.Chain {
return utiliptables.Chain("KUBE-FW-" + portProtoHash(s, protocol))
}
// This is the same as servicePortChainName but with the endpoint included.
@ -872,14 +872,14 @@ func (proxier *Proxier) syncProxyRules() {
// Capture load-balancer ingress.
for _, ingress := range svcInfo.loadBalancerStatus.Ingress {
if ingress.IP != "" {
// create service external loadbalancer chain
xlbChain := externalLoadBalancerChainName(svcName, protocol)
if chain, ok := existingNATChains[xlbChain]; ok {
// create service firewall chain
fwChain := serviceFirewallChainName(svcName, protocol)
if chain, ok := existingNATChains[fwChain]; ok {
writeLine(natChains, chain)
} else {
writeLine(natChains, utiliptables.MakeChainLine(xlbChain))
writeLine(natChains, utiliptables.MakeChainLine(fwChain))
}
activeNATChains[xlbChain] = true
activeNATChains[fwChain] = true
// The service firewall rules are created based on ServiceSpec.loadBalancerSourceRanges field.
// This currently works for loadbalancers that preserves source ips.
// For loadbalancers which direct traffic to service NodePort, the firewall rules will not apply.
@ -892,10 +892,10 @@ func (proxier *Proxier) syncProxyRules() {
"--dport", fmt.Sprintf("%d", svcInfo.port),
}
// jump to service firewall chain
writeLine(natRules, append(args, "-j", string(xlbChain))...)
writeLine(natRules, append(args, "-j", string(fwChain))...)
args = []string{
"-A", string(xlbChain),
"-A", string(fwChain),
"-m", "comment", "--comment", fmt.Sprintf(`"%s loadbalancer IP"`, svcName.String()),
}
// We have to SNAT packets from external IPs.
@ -1055,7 +1055,7 @@ func (proxier *Proxier) syncProxyRules() {
for chain := range existingNATChains {
if !activeNATChains[chain] {
chainString := string(chain)
if !strings.HasPrefix(chainString, "KUBE-SVC-") && !strings.HasPrefix(chainString, "KUBE-SEP-") && !strings.HasPrefix(chainString, "KUBE-XLB-") {
if !strings.HasPrefix(chainString, "KUBE-SVC-") && !strings.HasPrefix(chainString, "KUBE-SEP-") && !strings.HasPrefix(chainString, "KUBE-FW-") {
// Ignore chains that aren't ours.
continue
}