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Merge pull request #118088 from danwinship/kube-proxy-belated-cleanup

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belated cleanup of some kube-proxy stuff for old versions
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Kubernetes Prow Robot 2023-05-18 13:18:34 -07:00 committed by GitHub
commit b2a1855f2c
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1 changed files with 3 additions and 8 deletions
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11
pkg/proxy/iptables/proxier.go
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@ -383,10 +383,9 @@ var iptablesKubeletJumpChains = []iptablesJumpChain{
{utiliptables.TableNAT, kubePostroutingChain, utiliptables.ChainPostrouting, "kubernetes postrouting rules", nil},
}
var iptablesCleanupOnlyChains = []iptablesJumpChain{
// Present in kube 1.13 - 1.19. Removed by #95252 in favor of adding reject rules for incoming/forwarding packets to kubeExternalServicesChain
{utiliptables.TableFilter, kubeServicesChain, utiliptables.ChainInput, "kubernetes service portals", []string{"-m", "conntrack", "--ctstate", "NEW"}},
}
// When chains get removed from iptablesJumpChains, add them here so they get cleaned up
// on upgrade.
var iptablesCleanupOnlyChains = []iptablesJumpChain{}
// CleanupLeftovers removes all iptables rules and chains created by the Proxier
// It returns true if an error was encountered. Errors are logged.
@ -682,9 +681,6 @@ const (
serviceFirewallChainNamePrefix = "KUBE-FW-"
serviceExternalChainNamePrefix = "KUBE-EXT-"
servicePortEndpointChainNamePrefix = "KUBE-SEP-"
// For cleanup. This can be removed after 1.26 is released.
deprecatedServiceLBChainNamePrefix = "KUBE-XLB-"
)
// servicePortPolicyClusterChain returns the name of the KUBE-SVC-XXXX chain for a service, which is the
@ -730,7 +726,6 @@ func isServiceChainName(chainString string) bool {
servicePortEndpointChainNamePrefix,
serviceFirewallChainNamePrefix,
serviceExternalChainNamePrefix,
deprecatedServiceLBChainNamePrefix,
}
for _, p := range prefixes {