   filterChain:
          filter:
            name: &#34;envoy.filters.network.http_connection_manager&#34;
            subFilter:
              name: &#34;envoy.filters.http.router&#34;
    patch:
      operation: INSERT_BEFORE
      value: # Lua 过滤器规范
       name: envoy.lua
       typed_config:
          &#34;@type&#34;: &#34;type.googleapis.com/envoy.extensions.filters.http.lua.v3.Lua&#34;
          inlineCode: |
            function envoy_on_request(request_handle)
              -- Make an HTT