"targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${datasource}"
          },
          "expr": "round(sum(irate(istio_requests_total{destination_principal=~\"spiffe.*\", source_workload_namespace=~\"$namespace\", source_workload=~\"$workload\", reporter=\"source\", destination_service=~\"$dstsvc\"}[5m])) by (destination_service, response_code), 0.001)",
          "format": "time_series",