stener:
        filterChain:
          filter:
            name: envoy.http_connection_manager
            subFilter:
              name: envoy.router
    patch:
      operation: INSERT_BEFORE
      value:
        name: envoy.lua
        typed_config:
          &#34;@type&#34;: type.googleapis.com/envoy.config.filter.http.lua.v2.Lua
          inlineCode: |
            function envoy_on_request(handle)
              handle:headers():add(&#34;foo&#34;, &#34;bar&#34;)
            end
</code></pre><p>Should be 