HAProxy Config File Example for Hyperledger Besu

besu_haproxy.config

frontend discovery-tcp-30303
    bind *:30303
    acl ...
    ...
    default_backend back-discovery-tcp-30303

frontend rpc-tcp-8545
    bind *:8545
    acl ...
    ...
    default_backend back-rpc-tcp-8545

backend back-discovery-tcp-30303
    balance leastconn
    server node-01 10.0.1.1:30303 weight 1 check
    server node-02 10.0.1.2:30303 weight 1 check
    option ...
    timeout server 600s

backend back-rpc-tcp-8545
    balance leastconn
    server node-01 10.0.1.1:8545 weight 1 check
    server node-02 10.0.1.2:8545 weight 1 check
    option ....
    timeout server 600s
...

haproxy.config

global
  #debug                                   # uncomment to enable debug mode for HAProxy

defaults
  mode http                                # enable http mode which gives of layer 7 filtering
  timeout connect 5000ms                   # max time to wait for a connection attempt to a server to succeed
  timeout client 50000ms                   # max inactivity time on the client side
  timeout server 50000ms                   # max inactivity time on the server side

backend legacy                             # define a group of backend servers to handle legacy requests
  server legacy_server 127.0.0.1:8001      # add a server to this backend

frontend app *:80                          # define what port to listed to for HAProxy
  default_backend legacy                   # set the default server for all request

haproxy_content_switching.config

global
  #debug

defaults
  mode http
  option httpclose                         # close the tcp connection after every request
  timeout connect 5000ms
  timeout client 50000ms
  timeout server 50000ms

backend legacy
  server legacy_server 127.0.0.1:8001

backend rails                              # define a group of backend servers to handle rails requests
  server rails_server 127.0.0.1:8002       # add a server to this backend

frontend app *:80
  default_backend legacy
  acl rails_path path_beg /profile         # acl rule for paths to be handled by the new rails app
  use_backend rails if rails_path          # use rails if the rules match.