Added ngnix instance to supplement CORS headers during communication to

testnet node instance

examples/compose.yaml

@@ -13,7 +13,6 @@ services:
 
     ports:
       - "31234:1234"
-      - "3000:3000"
 
     tty: true
     stdin_open: true
@@ -26,6 +25,27 @@ services:
       retries: 10
       start_period: 30s
 
+    depends_on:
+      workerbee-testnet-proxy:
+        condition: service_healthy
+
+  workerbee-testnet-proxy:
+    image: nginxinc/nginx-unprivileged:1.25
+    volumes:
+      - type: bind
+        source: ./proxy/nginx.conf
+        target: /etc/nginx/conf.d/default.conf
+        read_only: true
+    ports:
+      - "3000:3000"
+
+    healthcheck:
+      test: "curl -f localhost:3000"
+      interval: 10s
+      timeout: 2s
+      retries: 10
+      start_period: 30s
+
     depends_on:
       workerbee-testnet:
         condition: service_healthy

examples/proxy/nginx.conf

+server {
+    listen       3000;
+    location / {
+        proxy_pass http://workerbee-testnet:2500;
+	 add_header 'Access-Control-Allow-Origin' '*';
+	 add_header 'Access-Control-Allow-Credentials' 'true';
+	 add_header 'Access-Control-Allow-Headers' 'DNT,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
+	 add_header 'Access-Control-Allow-Methods' 'GET,POST';
+    }
+
+}