Node Socket.io on HA Proxy with multiple end points - node.js

Question

I am tying to deploy my node websocket service on two boxes and masking it using haproxy but its not working.
frontend http-in
mode http
bind *:80
acl is_websocket path_beg /prodSocket
acl is_websocket hdr(Upgrade) -i WebSocket
acl is_websocket hdr_beg(Host) -i ws
use_backend prodSocket if is_websocket
acl is_websocket path_beg /demoSocket
acl is_websocket hdr(Upgrade) -i WebSocket
acl is_websocket hdr_beg(Host) -i ws
use_backend demoSocket if is_websocket
backend demoSocket
timeout server 180s
server 148.251.76.84 148.251.76.84:9000 weight 1 maxconn 1024 check
backend prodSocket
timeout server 180s
server 148.251.76.85 148.251.76.85:9000 weight 1 maxconn 1024 check
Client code -
var socket = io('http://localhost/prodSocket', {
'force new connection': false,
'reconnection delay': 500,
'max reconnection attempts': 10,
});
socket.emit('client', { my: 'data' });
socket.on('news', function (data) {
console.log(data);
});
The above code does not work but if I make following changes it works -
frontend http-in
mode http
bind *:80
acl is_websocket path_beg /socket.io
acl is_websocket hdr(Upgrade) -i WebSocket
acl is_websocket hdr_beg(Host) -i ws
use_backend socket if is_websocket
backend socket
timeout server 180s
server 148.251.76.84 148.251.76.84:9000 weight 1 maxconn 1024 check
Client code -
var socket = io('http://localhost:9090', {
'force new connection': false,
'reconnection delay': 500,
'max reconnection attempts': 10,
});
socket.emit('client', { my: 'data' });
socket.on('news', function (data) {
console.log(data);
});
I understood that socket io is calling /socket.io endpoint for creating a socket connection but how can then deploy my service over two different end points ?
Versions -
Socket.io - 1.4.5
Node - v5.6.0
HAproxy - 1.4.24
Ubuntu - 14.04
HAProxy Log using /socket.io endpoint -
config -
frontend http-in
mode http
bind *:9090
acl is_websocket path_beg /socket.io
acl is_websocket hdr(Upgrade) -i WebSocket
acl is_websocket hdr_beg(Host) -i ws
use_backend socket if is_websocket
CLient script -
var socket = io('http://localhost:9090', {
'force new connection': false,
'reconnection delay': 500,
'max reconnection attempts': 10,
});
Jul 21 10:50:04 localhost haproxy[11981]: 127.0.0.1:48571 [21/Jul/2016:10:49:51.830] http-in socket/148.251.76.84 0/0/171/676/12725 101 187 - - ---- 2/2/2/2/0 0/0 "GET /socket.io/?EIO=3&transport=websocket&sid=PvK2vnQO1_IepDHOAAAJ HTTP/1.1"
Jul 21 10:50:55 localhost haproxy[11981]: 127.0.0.1:48573 [21/Jul/2016:10:49:51.832] http-in socket/148.251.76.84 0/0/123/126/63531 200 1551 - - cD-- 2/2/2/2/0 0/0 "GET /socket.io/?EIO=3&transport=polling&t=LOBvKmM&sid=PvK2vnQO1_IepDHOAAAJ HTTP/1.1"
Jul 21 10:50:55 localhost haproxy[11981]: 127.0.0.1:48569 [21/Jul/2016:10:49:51.505] http-in socket/148.251.76.84 0/0/152/159/64144 200 1199 - - cD-- 1/1/1/1/0 0/0 "GET /socket.io/?EIO=3&transport=polling&t=LOBvKhF HTTP/1.1"
HAProxy Log using /prodSocket endpoint -
Config -
frontend http-in
mode http
bind *:9090
acl is_websocket path_beg /prodSocket
acl is_websocket hdr(Upgrade) -i WebSocket
acl is_websocket hdr_beg(Host) -i ws
use_backend socket if is_websocket
CLient script -
var socket = io('http://localhost:9090/prodSocket', {
'force new connection': false,
'reconnection delay': 500,
'max reconnection attempts': 10,
});
Jul 21 10:55:11 localhost haproxy[12361]: Proxy socket started.
Jul 21 10:55:11 localhost haproxy[12361]: 127.0.0.1:48856 [21/Jul/2016:10:55:11.767] http-in http-in/<NOSRV> -1/-1/-1/-1/0 503 213 - - SC-- 0/0/0/0/0 0/0 "GET /socket.io/?EIO=3&transport=polling&t=LOBwYtK HTTP/1.1"
Jul 21 10:55:16 localhost haproxy[12362]: 127.0.0.1:48859 [21/Jul/2016:10:55:16.229] http-in http-in/<NOSRV> -1/-1/-1/-1/0 503 213 - - SC-- 0/0/0/0/0 0/0 "GET /socket.io/?EIO=3&transport=polling&t=LOBwZz3 HTTP/1.1"
Jul 21 10:55:17 localhost haproxy[12362]: 127.0.0.1:48860 [21/Jul/2016:10:55:17.364] http-in http-in/<NOSRV> -1/-1/-1/-1/0 503 213 - - SC-- 0/0/0/0/0 0/0 "GET /socket.io/?EIO=3&transport=polling&t=LOBwaEn HTTP/1.1"
Jul 21 10:55:19 localhost haproxy[12362]: 127.0.0.1:48862 [21/Jul/2016:10:55:19.075] http-in http-in/<NOSRV> -1/-1/-1/-1/0 503 213 - - SC-- 0/0/0/0/0 0/0 "GET /socket.io/?EIO=3&transport=polling&t=LOBwafV HTTP/1.1"
Jul 21 10:55:22 localhost haproxy[12362]: 127.0.0.1:48865 [21/Jul/2016:10:55:22.262] http-in http-in/<NOSRV> -1/-1/-1/-1/0 503 213 - - SC-- 0/0/0/0/0 0/0 "GET /socket.io/?EIO=3&transport=polling&t=LOBwbRI HTTP/1.1"
Jul 21 10:55:27 localhost haproxy[12362]: 127.0.0.1:48869 [21/Jul/2016:10:55:27.271] http-in http-in/<NOSRV> -1/-1/-1/-1/0 503 213 - - SC-- 0/0/0/0/0 0/0 "GET /socket.io/?EIO=3&transport=polling&t=LOBwcfa HTTP/1.1"