haproxy config

# This file uses golang text templates (http://golang.org/pkg/text/template/) to
# dynamically configure the haproxy loadbalancer.
global
    daemon
    stats socket /tmp/haproxy


defaults
    log global

    # Enable session redistribution in case of connection failure.
    option redispatch
    
    # Disable logging of null connections (haproxy connections like checks). 
    # This avoids excessive logs from haproxy internals.
    option dontlognull
    
    # Enable HTTP connection closing on the server side.
    option http-server-close

    # Enable insertion of the X-Forwarded-For header to requests sent to 
    # servers and keep client IP address.
    option forwardfor
    
    # Enable HTTP keep-alive from client to server.
    option http-keep-alive

    # Clients should send their full http request in 5s.
    timeout http-request    5s
    
    # Maximum time to wait for a connection attempt to a server to succeed.
    timeout connect         5s

    # Maximum inactivity time on the client side.
    # Applies when the client is expected to acknowledge or send data.
    timeout client          50s

    # Inactivity timeout on the client side for half-closed connections.
    # Applies when the client is expected to acknowledge or send data 
    # while one direction is already shut down.
    timeout client-fin      50s
    
    # Maximum inactivity time on the server side.
    timeout server          50s
    
    # timeout to use with WebSocket and CONNECT
    timeout tunnel          1h
    
    # Maximum allowed time to wait for a new HTTP request to appear.
    timeout http-keep-alive 60s

    # default traffic mode is http
    # mode is overwritten in case of tcp services
    mode http

    # default default_backend. This allows custom default_backend in frontends
    default_backend default-backend

backend default-backend
  server localhost 127.0.0.1:8081

frontend httpfrontend
    # Frontend bound on all network interfaces on port 80
    bind *:80

    acl url_acl_mypage path_beg /foobar
    use_backend mypage if url_acl_mypage

backend mypage
    option httplog
    balance roundrobin
    reqrep ^([^\ :]*)\ /foobar[/]?(.*) \1\ /\2
    server localhost:8000 localhost:8000