We have logging enabled on our HTTP(S) Load Balancing for backend services, as described here. It contains useful and structured data about http requests made:
{
"requestMethod": string,
"requestUrl": string,
"requestSize": string,
"status": integer,
"responseSize": string,
"userAgent": string,
"remoteIp": string,
"serverIp": string,
"referer": string,
"latency": string,
"cacheLookup": boolean,
"cacheHit": boolean,
"cacheValidatedWithOriginServer": boolean,
"cacheFillBytes": string,
"protocol": string
}
Is this possible to add some fields to that format? In particular, we're interested in logging some (but not all) HTTP headers passed in the request.
