defaults
  log global
  mode http
  option httplog
  option dontlognull
  timeout connect 5s
  timeout client 1m
  timeout server 1m
  timeout http-keep-alive 2m
  timeout queue 15s
  timeout tunnel 4h # for websocket
  errorfile 400 /etc/haproxy/errors/400.http
  errorfile 403 /etc/haproxy/errors/403.http
  errorfile 408 /etc/haproxy/errors/408.http
  errorfile 500 /etc/haproxy/errors/500.http
  errorfile 502 /etc/haproxy/errors/502.http
  errorfile 503 /etc/haproxy/errors/503.http
  errorfile 504 /etc/haproxy/errors/504.http