From a8bc603be6eaecc2f0d53d319b3cd47dc5dbdc75 Mon Sep 17 00:00:00 2001
From: Konstantin Renner <konstantin@renner.uno>
Date: Mon, 13 Apr 2026 10:09:47 +0200
Subject: [PATCH] feat: Assign dual-stack LB IPs to ingress-nginx via Cilium
 IPAM

Use io.cilium/lb-ipam-ips annotation to request both IPv4 (10.2.40.80)
and IPv6 ULA (fd40::80) for the ingress LoadBalancer service.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 kubernetes/infrastructure/ingress-nginx/helmrelease.yaml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kubernetes/infrastructure/ingress-nginx/helmrelease.yaml b/kubernetes/infrastructure/ingress-nginx/helmrelease.yaml
index 7491d973..17d87f06 100644
--- a/kubernetes/infrastructure/ingress-nginx/helmrelease.yaml
+++ b/kubernetes/infrastructure/ingress-nginx/helmrelease.yaml
@@ -41,11 +41,12 @@ spec:
         digest: ""
       service:
         type: LoadBalancer
-        loadBalancerIP: 10.2.40.80
         ipFamilyPolicy: PreferDualStack
         ipFamilies:
           - IPv4
           - IPv6
+        annotations:
+          io.cilium/lb-ipam-ips: "10.2.40.80,fd40::80"
       ingressClassResource:
         default: true
       config: