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Improve IP alias handling in service_linux.go

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Log a debug message when the IP alias already exists instead of returning an error.

Signed-off-by: kumy <kumy@users.noreply.github.com>
This commit is contained in:
kumy
2025-12-03 14:08:33 +01:00
committed by GitHub
parent 19c48ee826
commit 187436faf2
1 changed files with 6 additions and 2 deletions
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8
daemon/libnetwork/service_linux.go
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@@ -118,8 +118,12 @@ func (n *Network) addLBBackend(ip net.IP, lb *loadBalancer) {
}
err := sb.osSbox.AddAliasIP(ifName, &net.IPNet{IP: lb.vip, Mask: net.CIDRMask(32, 32)})
if err != nil {
log.G(context.TODO()).Errorf("Failed add IP alias %s to network %s LB endpoint interface %s: %v", lb.vip, n.ID(), ifName, err)
return
if errors.Is(err, syscall.EEXIST) {
log.G(context.TODO()).Debugf("IP alias %s already exists on network %s LB endpoint interface %s", lb.vip, n.ID(), ifName)
} else {
log.G(context.TODO()).Errorf("Failed add IP alias %s to network %s LB endpoint interface %s: %v", lb.vip, n.ID(), ifName, err)
return
}
}
if sb.ingress {