HAProxy to Nginx (Web + V2Ray WebSocket) + OpenConnect + ShadowsocksR (TLS OBFS)

haproxy.cfg

defaults
    timeout connect 5s
    timeout client 24h
    timeout server 24h

global
    log /dev/log local0

frontend ssl
    log global
    mode tcp
    option tcplog
    option dontlognull
    bind 0.0.0.0:443

    tcp-request inspect-delay 3s
    tcp-request content accept if { req.ssl_hello_type 1 }

    acl tls req.ssl_hello_type 1
    acl has_sni req.ssl_sni -m found

    use_backend ocserv if tls !has_sni
    use_backend shadowsocksr if tls { req.ssl_sni -i your.tls.obfuscation.domain }
    use_backend nginx if tls has_sni
    default_backend nginx

backend ocserv
    mode tcp
    server sslvpn ocserv:443 send-proxy-v2

backend nginx
    mode tcp
    timeout server 5m
    server webserver nginx:443 send-proxy

backend shadowsocksr
    mode tcp
    server socks ssr:443