ubFilter:
              name: &quot;envoy.filters.http.router&quot;
    patch:
      operation: INSERT_BEFORE
      value: # lua filter specification
       name: envoy.filters.http.lua
       typed_config:
          &quot;@type&quot;: &quot;type.googleapis.com/envoy.extensions.filters.http.lua.v3.Lua&quot;
          defaultSourceCode:
            inlineString: |
              function envoy_on_request(request_handle)
                -- Make an HTTP call to an upstream host with the following headers, body,