RR starting from the v2.5.0 brings access logs support (turned off by default). They will include the following information:
method - http method.remote_addr - request remote address.bytes_sent - content-length,http_host - host.request - request Query.time_local - local time in Common Log Format.request_length - request body with headers size (content-len + size of all headers) in bytes. Max allowed headers size for the RR is 1MB.request_time - request processing time in seconds with a milliseconds' resolution.status - http response status.http_user_agent - http user agent
http_referer - http referer
version: "2.7"
http:
address: 127.0.0.1:44933
middleware: []
access_logs: true
# ...