Add local cdn

devenv/local_cdn/default.conf

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+server {
+	root /data;
+	autoindex on;
+
+	location / {
+		if ($request_method = 'OPTIONS') {
+			add_header 'Access-Control-Allow-Origin' '$http_origin' always;
+			add_header 'Access-Control-Allow-Credentials' 'true' always;
+			add_header 'Access-Control-Allow-Headers' '*' always;
+			add_header 'Access-Control-Allow-Methods' '*';
+			# add_header 'Access-Control-Max-Age' 1728000;
+			add_header 'Content-Type' 'text/plain; charset=utf-8';
+			add_header 'Content-Length' 0;
+			return 204;
+		}
+
+		add_header 'Access-Control-Allow-Origin' '$http_origin' always;
+		add_header 'Access-Control-Allow-Methods' '*' always;
+		add_header 'Access-Control-Allow-Headers' '*' always;
+		add_header 'Access-Control-Allow-Credentials' 'true' always;
+
+		rewrite ^/grafana-oss/11.0.0-pre/public(.*)$ $1 last;
+	}
+}

devenv/local_cdn/docker-compose.yaml

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+version: '2'
+
+services:
+  grafana_local_cdn:
+    image: nginx:alpine
+    container_name: grafana_local_cdn
+    ports:
+      - "8080:80"
+    volumes:
+      - ../../public:/data
+      - ./default.conf:/etc/nginx/conf.d/default.conf