{
          "datasource": {
            "type": "prometheus",
            "uid": "${datasource}"
          },
          "expr": "sum(container_memory_working_set_bytes{pod=~\"istio-ingressgateway-.*\"}) / count(container_memory_working_set_bytes{pod=~\"istio-ingressgateway-.*\",container!=\"POD\"})",
          "format": "time_series",
          "intervalFactor": 1,
          "legendFormat": "per istio-ingressgateway",