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ateomnet: drop the unused PodIPv4 helper #1635

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Merged
Bowei Du (bowei) merged 1 commit into from
Sep 14, 2026
Merged

ateomnet: drop the unused PodIPv4 helper #1635

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24 changes: 0 additions & 24 deletions internal/ateomnet/net.go
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Original file line number Diff line number Diff line change
Expand Up @@ -168,30 +168,6 @@ func CleanupActorNetwork(ctx context.Context, interiorNetNS netns.NsHandle) erro
return cleanupErr
}

// PodIPv4 resolves the worker pod IPv4 address from the pod namespace's real eth0.
func PodIPv4() (net.IP, error) {
// Resolve the worker pod IPv4 address from the pod namespace's real eth0.
// Because eth0 now stays in the pod namespace, this IP remains available for
// both normal worker connectivity and the temporary inbound DNAT rule.
eth0Link, err := netlink.LinkByName("eth0")
if err != nil {
return nil, fmt.Errorf("while getting pod eth0: %w", err)
}
addrs, err := netlink.AddrList(eth0Link, netlink.FAMILY_V4)
if err != nil {
return nil, fmt.Errorf("while listing pod eth0 addresses: %w", err)
}
for _, addr := range addrs {
if addr.IP == nil {
continue
}
if ip := addr.IP.To4(); ip != nil {
return ip, nil
}
}
return nil, fmt.Errorf("pod eth0 has no IPv4 address")
}

// EnableIPv4Forwarding enables IPv4 forwarding in the current network namespace.
func EnableIPv4Forwarding() error {
// Forwarding is required because actor packets now enter the worker pod via
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