From f0d842d8b0a78786edfb831d0246b3b1113b5b35 Mon Sep 17 00:00:00 2001
From: "Jens-U. Mozdzen" <jmozdzen@nde.ag>
Date: Thu, 1 Sep 2022 23:30:29 +0200
Subject: [PATCH] added custom annotation to ingress for CORS

---
 internal/configs/version1/nginx.ingress.tmpl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/internal/configs/version1/nginx.ingress.tmpl b/internal/configs/version1/nginx.ingress.tmpl
index 93f25cc53b..f2234f2c44 100644
--- a/internal/configs/version1/nginx.ingress.tmpl
+++ b/internal/configs/version1/nginx.ingress.tmpl
@@ -10,6 +10,12 @@ upstream {{$upstream.Name}} {
 
 {{range $server := .Servers}}
 server {
+	{{if index $.Ingress.Annotations "custom.nginx.org/cors-allow-origin"}} 
+	# replace Access-Control-Allow-Origin header 
+	proxy_hide_header "Access-Control-Allow-Origin"; 
+	add_header Access-Control-Allow-Origin "{{ index $.Ingress.Annotations "custom.nginx.org/cors-allow-origin"}}"; 
+	{{end}}
+
 	{{if not $server.GRPCOnly}}
 	{{range $port := $server.Ports}}
 	listen {{$port}}{{if $server.ProxyProtocol}} proxy_protocol{{end}};