From f81ccc2e39d8169f4cafbab8639b555679a4e305 Mon Sep 17 00:00:00 2001
From: siryur <12106023+siryur@users.noreply.github.com>
Date: Tue, 3 Nov 2026 10:49:15 +0100
Subject: [PATCH 1/2] feat: support loadBalancerIP on the Service

A LoadBalancer Service could not be pinned to a pre-reserved IP. On
GKE without GKE subsetting, spec.loadBalancerIP is the only way to
give an internal load balancer a static address; the annotation
alternative requires subsetting.

Add an optional service.loadBalancerIP value, rendered only when set,
and a test values file covering it.
---
 templates/service.yaml            | 3 +++
 test/values-load-balancer-ip.yaml | 6 ++++++
 values.yaml                       | 5 +++++
 3 files changed, 14 insertions(+)
 create mode 100644 test/values-load-balancer-ip.yaml

diff --git a/templates/service.yaml b/templates/service.yaml
index ca2634a..e8daf97 100644
--- a/templates/service.yaml
+++ b/templates/service.yaml
@@ -41,6 +41,9 @@ spec:
   {{- if .Values.service.internalTrafficPolicy }}
   internalTrafficPolicy: {{ .Values.service.internalTrafficPolicy | quote }}
   {{- end }}
+  {{- if .Values.service.loadBalancerIP }}
+  loadBalancerIP: {{ .Values.service.loadBalancerIP | quote }}
+  {{- end }}
   {{- if .Values.service.ipFamilyPolicy }}
   ipFamilyPolicy: {{ .Values.service.ipFamilyPolicy }}
   {{- end }}
diff --git a/test/values-load-balancer-ip.yaml b/test/values-load-balancer-ip.yaml
new file mode 100644
index 0000000..25831ed
--- /dev/null
+++ b/test/values-load-balancer-ip.yaml
@@ -0,0 +1,6 @@
+# Test loadBalancerIP rendering
+service:
+  type: LoadBalancer
+  annotations:
+    networking.gke.io/load-balancer-type: "Internal"
+  loadBalancerIP: "10.0.0.10"
diff --git a/values.yaml b/values.yaml
index 3425451..e1bc0e4 100644
--- a/values.yaml
+++ b/values.yaml
@@ -372,6 +372,11 @@ service:
   # routed (Cluster or Local).
   # see https://kubernetes.io/docs/reference/networking/virtual-ips/#internal-traffic-policy for more details.
   internalTrafficPolicy: ""
+  # loadBalancerIP pins a LoadBalancer service to a pre-reserved IP, e.g. a
+  # static internal IP for a GKE internal load balancer without GKE subsetting.
+  # Support depends on the cloud provider.
+  # see https://kubernetes.io/docs/concepts/services-networking/service/#loadbalancer for more details.
+  loadBalancerIP: ""
   # ipFamilyPolicy controls IP family behavior for the service.
   # Valid values: SingleStack, PreferDualStack, RequireDualStack
   # Leave empty to use cluster defaults.

From ded43364913848ac2c74fb60f44253bdc97fa450 Mon Sep 17 00:00:00 2001
From: siryur <12106023+siryur@users.noreply.github.com>
Date: Tue, 3 Nov 2026 10:59:41 +0100
Subject: [PATCH 2/2] chore: keep loadBalancerIP docs provider-neutral

---
 test/values-load-balancer-ip.yaml | 2 --
 values.yaml                       | 3 +--
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/test/values-load-balancer-ip.yaml b/test/values-load-balancer-ip.yaml
index 25831ed..b078ab3 100644
--- a/test/values-load-balancer-ip.yaml
+++ b/test/values-load-balancer-ip.yaml
@@ -1,6 +1,4 @@
 # Test loadBalancerIP rendering
 service:
   type: LoadBalancer
-  annotations:
-    networking.gke.io/load-balancer-type: "Internal"
   loadBalancerIP: "10.0.0.10"
diff --git a/values.yaml b/values.yaml
index e1bc0e4..200ee51 100644
--- a/values.yaml
+++ b/values.yaml
@@ -372,8 +372,7 @@ service:
   # routed (Cluster or Local).
   # see https://kubernetes.io/docs/reference/networking/virtual-ips/#internal-traffic-policy for more details.
   internalTrafficPolicy: ""
-  # loadBalancerIP pins a LoadBalancer service to a pre-reserved IP, e.g. a
-  # static internal IP for a GKE internal load balancer without GKE subsetting.
+  # loadBalancerIP pins a LoadBalancer service to a pre-reserved IP.
   # Support depends on the cloud provider.
   # see https://kubernetes.io/docs/concepts/services-networking/service/#loadbalancer for more details.
   loadBalancerIP: ""