},
            {
              "datasource": {
                "type": "prometheus",
                "uid": "${datasource}"
              },
              "expr": "sum(increase(envoy_server_hot_restart_epoch[1m]))",
              "format": "time_series",
              "intervalFactor": 1,
              "legendFormat": "Envoy Restarts",
              "refId": "B"
            }