NGINX JSON log_format

nginx_logformat.conf

  log_format main_json escape=json
    '{'
    '"@timestamp":"$time_iso8601",'
    '"cloudflare":{'
      '"ray_id": "$http_cf_ray",'
      '"colo": "$cf_colo",'
      '"connecting_ip": "$http_cf_connecting_ip",'
      '"device_type": "$http_cf_device_type",'
      '"ipcountry": "$http_cf_ipcountry"'
    '},'
    '"nginx":{'
      '"connection": $connection,'
      '"connection_requests": $connection_requests'
    '},'
    '"dd":{'
      '"trace_id":"$upstream_http_x_datadog_trace_id",'
      '"parent_id":"$upstream_http_x_datadog_parent_id"'
    '},'
    '"remote_user":"$remote_user",'
    '"ssl":{'
      '"ciphers":"$ssl_ciphers",'
      '"client_verify":"$ssl_client_verify",'
      '"protocol":"$ssl_protocol",'
      '"server_name":"$ssl_server_name",'
      '"session_reused":"$ssl_session_reused"'
    '},'
    '"http":{'
      '"body_bytes_sent":$body_bytes_sent,'
      '"content_length":"$content_length",'
      '"content_type":"$content_type",'
      '"document_root":"$document_root",'
      '"headers":{' 
        '"if_none_match":"$http_if_none_match",'
        '"if_modified_since":"$http_if_modified_since",'
        '"x_forwarded_for":"$http_x_forwarded_for",'
        '"x_forwarded_proto":"$http_x_forwarded_proto",'
        '"x_runtime":"$upstream_http_x_runtime",'
        '"x_zendesk_origin_server": "$upstream_http_x_zendesk_origin_server"'
      '},'
      '"host":"$host",'
      '"method":"$request_method", '
      '"protocol":"$server_protocol",'
      '"referer":"$http_referer",'
      '"request":"$request",'
      '"request_completion":"$request_completion",'
      '"request_length":$request_length,'
      '"request_time":$request_time,'
      '"status_code":$status,'
      '"request_id":"$uuid",'
      '"url_details":{'
        '"path":"$uri",'
        '"scheme":"$scheme"'
      '},'
      '"user_agent":"$http_user_agent"'
    '},'
    '"location_upstream":"$service_name",'
    '"location_name":"$location_name",'
    '"tcp_conn":{'
      '"realip_remote_addr":"$realip_remote_addr",'
      '"realip_remote_port":$realip_remote_port,'
      '"remote_addr":"$remote_addr",'
      '"remote_port":"$remote_port",' 
      '"server_name":"$server_name",'
      '"server_port":$server_port'
    '},'
    '"tcp_stats":{'
      '"rtt":$tcpinfo_rtt,'
      '"rttvar":$tcpinfo_rttvar,'
      '"snd_cwnd":$tcpinfo_snd_cwnd,'
      '"rcv_space":$tcpinfo_rcv_space'
    '},'
    '"time_local":"$time_local",'
    '"upstream":{'
      '"addr":"$upstream_addr",'
      '"bytes_received":"$upstream_bytes_received",'
      '"cache_status":"$upstream_cache_status",'
      '"connect_time":"$upstream_connect_time",'
      '"header_time":"$upstream_header_time",'
      '"headers":{' 
        '"x_accel_redirect":"$upstream_http_x_accel_redirect",'
        '"if_modified_since":"$upstream_http_if_modified_since",'
        '"if_none_match":"$upstream_http_if_none_match",'
        '"location":"$upstream_http_location"'
      '},'
      '"response_time":"$upstream_response_time",'
      '"status":"$upstream_status"'
    '}'
    '}';