From 3a31e973c00108162c43e48a934ca95027b20545 Mon Sep 17 00:00:00 2001
From: Matheus Pimenta <matheuscscp@gmail.com>
Date: Fri, 6 Mar 2026 03:44:28 +0000
Subject: [PATCH] Introduce GRPCRoute in the Helm chart

Signed-off-by: Matheus Pimenta <matheuscscp@gmail.com>
---
 charts/podinfo/templates/grpcroute.yaml | 42 +++++++++++++++++++++++++
 charts/podinfo/values.yaml              | 22 +++++++++++++
 2 files changed, 64 insertions(+)
 create mode 100644 charts/podinfo/templates/grpcroute.yaml

diff --git a/charts/podinfo/templates/grpcroute.yaml b/charts/podinfo/templates/grpcroute.yaml
new file mode 100644
index 0000000..716ace7
--- /dev/null
+++ b/charts/podinfo/templates/grpcroute.yaml
@@ -0,0 +1,42 @@
+{{- if .Values.grpcRoute.enabled -}}
+{{- $fullName := include "podinfo.fullname" . -}}
+{{- $grpcPort := .Values.service.grpcPort -}}
+apiVersion: gateway.networking.k8s.io/v1
+kind: GRPCRoute
+metadata:
+  name: {{ $fullName }}
+  namespace: {{ include "podinfo.namespace" . }}
+  labels:
+    {{- include "podinfo.labels" . | nindent 4 }}
+    {{- with .Values.grpcRoute.additionalLabels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+  {{- with .Values.grpcRoute.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  parentRefs:
+    {{- with .Values.grpcRoute.parentRefs }}
+      {{- toYaml . | nindent 4 }}
+    {{- end }}
+  {{- with .Values.grpcRoute.hostnames }}
+  hostnames:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+  rules:
+    {{- range .Values.grpcRoute.rules }}
+    - backendRefs:
+        - name: {{ $fullName }}
+          port: {{ $grpcPort }}
+          weight: 1
+    {{- with .matches }}
+      matches:
+      {{- toYaml . | nindent 8 }}
+    {{- end }}
+    {{- with .filters }}
+      filters:
+      {{- toYaml . | nindent 8 }}
+    {{- end }}
+    {{- end }}
+{{- end }}
diff --git a/charts/podinfo/values.yaml b/charts/podinfo/values.yaml
index 255c101..4902cea 100644
--- a/charts/podinfo/values.yaml
+++ b/charts/podinfo/values.yaml
@@ -232,6 +232,28 @@ httpRoute:
             type: PathPrefix
             value: /
 
+# -- Expose the gRPC service via Gateway GRPCRoute
+# Requires a Gateway controller with GRPCRoute support
+# Docs https://gateway-api.sigs.k8s.io/guides/grpc-routing/
+grpcRoute:
+  # GRPCRoute enabled.
+  enabled: false
+  # Add additional labels to the GRPCRoute.
+  additionalLabels: {}
+  # GRPCRoute annotations.
+  annotations: {}
+  # Which Gateways this Route is attached to.
+  parentRefs:
+    - name: gateway
+      sectionName: http
+      # namespace: default
+  # Hostnames matching HTTP header.
+  hostnames:
+    - podinfo.local
+  # List of rules applied.
+  rules:
+    - {}
+
 # create Prometheus Operator monitor
 serviceMonitor:
   enabled: false