From 04ce776f14086008424f252bcbfe58eda5dab554 Mon Sep 17 00:00:00 2001
From: Kent Dong <ch3cho@qq.com>
Date: Mon, 14 Oct 2024 18:50:45 +0800
Subject: [PATCH] feat: Support route fallback by default (#1381)

---
 helm/core/templates/fallback-envoyfilter.yaml | 22 +++++++++++++++++++
 helm/core/values.yaml                         |  2 +-
 2 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100644 helm/core/templates/fallback-envoyfilter.yaml

diff --git a/helm/core/templates/fallback-envoyfilter.yaml b/helm/core/templates/fallback-envoyfilter.yaml
new file mode 100644
index 000000000..567ee0925
--- /dev/null
+++ b/helm/core/templates/fallback-envoyfilter.yaml
@@ -0,0 +1,22 @@
+apiVersion: networking.istio.io/v1alpha3
+kind: EnvoyFilter
+metadata:
+  name: {{ include "gateway.name" . }}-global-custom-response
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "gateway.labels" . | nindent 4}}
+spec:
+  configPatches:
+    - applyTo: HTTP_FILTER
+      match:
+        context: GATEWAY
+        listener:
+          filterChain:
+            filter:
+              name: envoy.filters.network.http_connection_manager
+      patch:
+        operation: INSERT_FIRST
+        value:
+          name: envoy.filters.http.custom_response
+          typed_config:
+            "@type": type.googleapis.com/envoy.extensions.filters.http.custom_response.v3.CustomResponse
\ No newline at end of file
diff --git a/helm/core/values.yaml b/helm/core/values.yaml
index ce0889920..39582f748 100644
--- a/helm/core/values.yaml
+++ b/helm/core/values.yaml
@@ -26,7 +26,7 @@ global:
   autoscalingv2API: true
   local: false # When deploying to a local cluster (e.g.: kind cluster), set this to true.
   kind: false # Deprecated. Please use "global.local" instead. Will be removed later.
-  enableIstioAPI: false
+  enableIstioAPI: true
   enableGatewayAPI: false
   # Deprecated
   enableHigressIstio: false