Haproxy : Exemple de fichier de configuration

Exemple en frontal devant un serveur Nexus

global
	log /dev/log	local0
	log /dev/log	local1 notice
	chroot /var/lib/haproxy
	stats socket /run/haproxy/admin.sock mode 660 level admin
	stats timeout 30s
	user haproxy
	group haproxy
	daemon

	# Default SSL material locations
	ca-base /etc/ssl/certs
	crt-base /etc/ssl/private

	# See: https://ssl-config.mozilla.org/#server=haproxy&server-version=2.0.3&config=intermediate
        ssl-default-bind-ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
        ssl-default-bind-ciphersuites TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256
        ssl-default-bind-options ssl-min-ver TLSv1.2 no-tls-tickets

defaults
	log	global
	mode	http
	option	httplog
	option	dontlognull
        timeout connect 5000
        timeout client  50000
        timeout server  50000
	errorfile 400 /etc/haproxy/errors/400.http
	errorfile 403 /etc/haproxy/errors/403.http
	errorfile 408 /etc/haproxy/errors/408.http
	errorfile 500 /etc/haproxy/errors/500.http
	errorfile 502 /etc/haproxy/errors/502.http
	errorfile 503 /etc/haproxy/errors/503.http
	errorfile 504 /etc/haproxy/errors/504.http


frontend https_in
    bind *:443 ssl crt /etc/haproxy/certs/wildcard.yakakliker.org/wildcard.yakakliker.org.pem
    mode http
    
    # Sécurité : Empêche l'affichage de Nexus dans une iframe (anti-clickjacking)
    http-response set-header X-Frame-Options SAMEORIGIN
    http-response set-header X-Content-Type-Options nosniff

    # Transmission de l'IP réelle du client à Nexus
    option forwardfor
    http-request set-header X-Forwarded-Proto https

    default_backend nexus_backend

backend nexus_backend
    mode http
    # 'first' choisit le premier serveur disponible avec des slots libres
    balance first
    
    # Compression pour accélérer l'interface web Nexus
    compression algo gzip
    compression type text/html text/plain text/css application/javascript

    # Le serveur local
    server nexus_solo 127.0.0.1:8081 check inter 2000 rise 2 fall 3

listen stats
    bind *:8080
    mode http
    stats enable
    stats uri /stats
    stats refresh 10s