ログストリーミング : Coralogix

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{
  "timestamp":%{time.start.msec}V,
  "applicationName":"fastly",
  "subsystemName":"%{req.service_id}V",
  "severity": 3,
  "json": {
    "time": {
        "start":"%{begin:%Y-%m-%dT%H:%M:%S%Z}t",
        "end":"%{end:%Y-%m-%dT%H:%M:%S%Z}t",
        "elapsed":%D
    },
    "cdn_server": {
        "ip_ipaddr":"%A",
        "code":"%{server.datacenter}V",
        "hostname":"%{server.hostname}V",
        "region_code":"%{server.region}V",
        "is_cacheable":%{if(fastly_info.state ~"^(HIT|MISS)$", "true", "false")}V,
        "cache_status":"%{regsub(fastly_info.state, "^(HIT-(SYNTH)|(HITPASS|HIT|MISS|PASS|ERROR|PIPE)).*", "\\2\\3")}V",
        "is_h2":%{if(fastly_info.is_h2, "true", "false")}V,
        "is_h2_push":%{if(fastly_info.h2.is_push, "true", "false")}V,
        "h2_stream_id":"%{fastly_info.h2.stream_id}V"
    },
    "client": {
        "city_name":"%{client.geo.city.utf8}V",
        "country_code":"%{client.geo.country_code}V",
        "country_name":"%{client.geo.country_name}V",
        "continent_code":"%{client.geo.continent_code}V",
        "region":"%{client.geo.region}V",
        "ip_ipaddr":"%h",
        "name":"%{client.as.name}V",
        "number":"%{client.as.number}V",
        "connection_speed":"%{client.geo.conn_speed}V",
        "location_geopoint": {
            "lat":%{client.geo.latitude}V,
            "lon":%{client.geo.longitude}V
        }
    },
    "response": {
        "status":%>s,
        "content_type":"%{Content-Type}o",
        "age":"%{Age}o",
        "cache_control":"%{Cache-Control}o",
        "expires":"%{Expires}o",
        "last_modified":"%{Last-Modified}o",
        "tsv":"%{TSV}o",
        "header_size":%{resp.header_bytes_written}V,
        "body_size":%B
    },
    "request": {
        "host":"%{req.http.host}V",
        "is_ipv6":%{if(req.is_ipv6, "true", "false")}V,
        "backend":"%{req.backend}V",
        "service_id":"%{req.service_id}V",
        "url":"%{cstr_escape(req.url)}V",
        "url_ext":"%{req.url.ext}V",
        "header_size":%{req.header_bytes_read}V,
        "body_size":%{req.body_bytes_read}V,
        "method":"%m",
        "protocol":"%H",
        "referer":"%{Referer}i",
        "user_agent":"%{User-Agent}i",
        "accept_content":"%{Accept}i",
        "accept_language":"%{Accept-Language}i",
        "accept_encoding":"%{Accept-Encoding}i",
        "accept_charset":"%{Accept-Charset}i",
        "connection":"%{Connection}i",
        "dnt":"%{DNT}i",
        "forwarded":"%{Forwarded}i",
        "via":"%{Via}i",
        "cache_control":"%{Cache-Control}i",
        "x_requested_with":"%{X-Requested-With}i",
        "x_att_device_id":"%{X-ATT-Device-Id}i",
        "x_forwarded_for":"%{X-Forwarded-For}i"
    },
    "socket": {
        "cwnd":%{client.socket.cwnd}V,
        "pace":%{client.socket.pace}V,
        "nexthop":"%{client.socket.nexthop}V",
        "tcpi_rcv_mss":%{client.socket.tcpi_rcv_mss}V,
        "tcpi_snd_mss":%{client.socket.tcpi_snd_mss}V,
        "tcpi_rtt":%{client.socket.tcpi_rtt}V,
        "tcpi_rttvar":%{client.socket.tcpi_rttvar}V,
        "tcpi_rcv_rtt":%{client.socket.tcpi_rcv_rtt}V,
        "tcpi_rcv_space":%{client.socket.tcpi_rcv_space}V,
        "tcpi_last_data_sent":%{client.socket.tcpi_last_data_sent}V,
        "tcpi_total_retrans":%{client.socket.tcpi_total_retrans}V,
        "tcpi_delta_retrans":%{client.socket.tcpi_delta_retrans}V,
        "ploss":%{client.socket.ploss}V
    }
  }
}