services:
  frontend:
    # Fix socket.io "Invalid origin" when accessing via localhost.
    # By default nginx forces "Origin: http://erp.local" for websocket proxying,
    # but the browser sends Host: localhost:8090 — they don't match.
    # Strategy: run nginx-entrypoint.sh to generate /etc/nginx/conf.d/frappe.conf,
    # then patch the generated file (template dir is read-only), then start nginx.
    entrypoint:
      - bash
      - -c
      - |
        nginx-entrypoint.sh &
        NGINX_PID=$$!
        sleep 1
        sed -i 's|proxy_set_header Origin .*|proxy_set_header Origin $$http_origin;|' \
          /etc/nginx/conf.d/frappe.conf
        sed -i '/location \/socket\.io/,/proxy_pass/{s|proxy_set_header Host .*|proxy_set_header Host $$http_host;|}' \
          /etc/nginx/conf.d/frappe.conf
        sed -i 's|listen 8080;|listen 8080;\n\tresolver 127.0.0.11 valid=30s;|' \
          /etc/nginx/conf.d/frappe.conf
        sed -i 's|proxy_pass http://socketio-server;|set $$sock websocket:9000;\n\t\tproxy_pass http://$$sock;|' \
          /etc/nginx/conf.d/frappe.conf
        nginx -s reload
        wait $$NGINX_PID