Istio文档提供了一个示例istio-proxy日志，如下所示：
[2019-03-06T09:31:27.354Z] "GET /status/418 HTTP/1.1" 418 - "-" 0 135 11 10 "-" "curl/7.60.0" "d209e46f-9ed5-9b61-bbdd-43e22662702a" "httpbin:8000" "172.30.146.73:80" outbound|8000||httpbin.default.svc.cluster.local - 172.21.13.94:8000 172.30.146.82:60290 -
链接的Envoy文档提到日志格式如下：
[%START_TIME%] "%REQ(:METHOD)% %REQ(X-ENVOY-ORIGINAL-PATH?:PATH)% %PROTOCOL%"
%RESPONSE_CODE% %RESPONSE_FLAGS% %BYTES_RECEIVED% %BYTES_SENT% %DURATION%
%RESP(X-ENVOY-UPSTREAM-SERVICE-TIME)% "%REQ(X-FORWARDED-FOR)%" "%REQ(USER-AGENT)%"
"%REQ(X-REQUEST-ID)%" "%REQ(:AUTHORITY)%" "%UPSTREAM_HOST%"\n
特使的例子：
[2016-04-15T20:17:00.310Z] "POST /api/v1/locations HTTP/2" 204 - 154 0 226 100 "10.0.35.28"
"nsq2http" "cc21d9b0-cf5c-432b-8c7e-98aeb7988cd2" "locations" "tcp://10.0.2.1:80"
此格式不同于istio-proxy使用的格式。
该文档似乎与Envoy文档不同步，因为提供的示例日志无法映射为Envoy默认日志格式。此处的日志格式是什么？正在记录什么？