nginx.conf

worker_processes 8;
error_log /dev/stderr;
worker_rlimit_nofile 8192;

events {
  worker_connections 4096;
}

http {
  include mime.types;
  index index.html;

  default_type application/octet-stream;
  log_format json escape=json '{"time": "$time_iso8601",'
    '"host": "$remote_addr",'
    '"vhost": "$host",'
    '"user": "$remote_user",'
    '"status": "$status",'
    '"protocol": "$server_protocol",'
    '"method": "$request_method",'
    '"path": "$request_uri",'
    '"req": "$request",'
    '"size": "$body_bytes_sent",'
    '"reqtime": "$request_time",'
    '"apptime": "$upstream_response_time",'
    '"ua": "$http_user_agent",'
    '"forwardedfor": "$http_x_forwarded_for",'
    '"forwardedproto": "$http_x_forwarded_proto",'
    '"referrer": "$http_referer"}';
  access_log /dev/stdout json;
  sendfile on;
  tcp_nopush on;
  server_names_hash_bucket_size 128;
  gzip on;

  server {
    listen 80;
    server_name www.hpcs.cs.tsukuba.ac.jp;
    access_log /dev/stdout json;
    location / {
      root /www;
      index index.html;
      try_files $uri $uri/index.html;
    }
  }
}