lter:
            name: envoy.http_connection_manager
            subFilter:
              name: envoy.router
    patch:
      operation: INSERT_BEFORE
      value:
        config:
          config:
            configuration: tomorrow
            name: myfilter
            rootId: add_header
            vmConfig:
              code:
                local:
                  filename: /var/local/lib/wasme-cache/44bf95b368e78fafb663020b43cf099b23fc6032814653f2f47e4d20643e7267
              runtime: envoy.wasm.