{
               "tag": "istio.namespace",
               "literal": {
                "value": "default"
               }
              }
             ]
            },
            "use_remote_address": false,
            "upgrade_configs": [
             {
              "upgrade_type": "websocket"
             }
            ],
            "stream_idle_timeout": "0s",

                              }
                            }
                          ]
                        },
                        "server_name": "istio-envoy",
                        "use_remote_address": false,
                        "upgrade_configs": [
                          {
                            "upgrade_type": "websocket"
                          }
                        ],

                          "max_concurrent_streams": 100,
                          "allow_connect": true
                        },
                        "server_name": "istio-envoy",
                        "use_remote_address": false,
                        "forward_client_cert_details": "APPEND_FORWARD",
                        "set_current_client_cert_details": {
                          "subject": true,

                                }
                              }
                            }
                          }
                        ],
                        "use_remote_address": false,
                        "upgrade_configs": [
                          {
                            "upgrade_type": "websocket"
                          }
                        ],