haproxy.cfg

global
    maxconn 256

defaults
    mode http
    timeout connect 5000ms
    timeout client 50000ms
    timeout server 50000ms

frontend http
    bind *:3002

    # Force SSL
    # redirect scheme https code 301 if ! { hdr(x-forwarded-proto) https }

    # Redirect visits index and show requests to the `flights1-react` app.
    acl react_assets  path_beg /react_app
    acl react_task_app url_reg -i /

    use_backend flights1-react if METH_GET react_task_app

    # And all other requests to `flights-rails`.
    default_backend flights-rails

backend flights-rails
    http-request set-header X-Forwarded-Host %[req.hdr(Host)]
    http-request set-header X-Forwarded-Port %[dst_port]


    http-request replace-path ^Host: Host:\ localhost:3001

    server flights-rails localhost:3001

backend flights1-react
    http-request set-header X-Forwarded-Host %[req.hdr(Host)]
    http-request set-header X-Forwarded-Port %[dst_port]

    http-request replace-path ^Host: Host:\ localhost:3000

    server flights1-react localhost:3000