haproxy.cfg

global
  daemon
  maxconn 4096
  pidfile haproxy.pid

defaults
  log global
  log 127.0.0.1 local0
  log 127.0.0.1 local1 notice  
  mode http
  timeout connect 300000
  timeout client 300000
  timeout server 300000
  option redispatch
  retries 3
  option httpclose
  option httplog
  option forwardfor
  option httpchk HEAD / HTTP/1.0

backend app
  balance roundrobin
  server app localhost:3000

backend cpuService
  balance roundrobin
  server cpu1 localhost:3001
  server cpu2 localhost:3002
  server cpu3 localhost:3003
  server cpu4 localhost:3004

backend memService
  balance roundrobin
  server mem1 localhost:3005

backend recService
  balance roundrobin
  server rec localhost:4000
  server recArango localhost:4001

backend neo4j
  balance roundrobin
  server neo localhost:4002

backend mongodb
  balance roundrobin
  server mongo localhost:4003

backend arangodb
  balance roundrobin
  server arango localhost:8529

frontend http-farm
  bind *:9000

  use_backend app if { path_beg /app }
  use_backend cpuService if { path_beg /cpu }
  use_backend memService if { path_beg /mem }
  use_backend recService if { path_beg /products }
  use_backend neo4j if { path_beg /neo4j }
  use_backend mongodb if { path_beg /mongo }
  use_backend arangodb if { path_beg /arangodb }

listen haproxyapp_admin:9100 127.0.0.1:9100
  mode http
  stats uri /