Add haproxy (ct) (#16760)

Co-authored-by: push-app-to-main[bot] <203845782+push-app-to-main[bot]@users.noreply.github.com>

install/haproxy-install.sh

@@ -0,0 +1,73 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: MickLesk (CanbiZ)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://www.haproxy.org/
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+msg_info "Installing HAProxy"
+$STD apt install -y haproxy
+msg_ok "Installed HAProxy"
+
+msg_info "Configuring HAProxy"
+HAPROXY_STATS_PASSWORD=$(openssl rand -base64 18)
+cat <<EOF >/etc/haproxy/haproxy.cfg
+global
+	log /dev/log local0
+	chroot /var/lib/haproxy
+	stats socket /run/haproxy/admin.sock mode 660 level admin
+	stats timeout 30s
+	user haproxy
+	group haproxy
+	daemon
+	ssl-default-bind-options ssl-min-ver TLSv1.2 no-tls-tickets
+
+defaults
+	log global
+	mode http
+	option httplog
+	option dontlognull
+	timeout connect 5s
+	timeout client 50s
+	timeout server 50s
+	errorfile 400 /etc/haproxy/errors/400.http
+	errorfile 403 /etc/haproxy/errors/403.http
+	errorfile 408 /etc/haproxy/errors/408.http
+	errorfile 500 /etc/haproxy/errors/500.http
+	errorfile 502 /etc/haproxy/errors/502.http
+	errorfile 503 /etc/haproxy/errors/503.http
+	errorfile 504 /etc/haproxy/errors/504.http
+
+listen stats
+	bind *:8404
+	stats enable
+	stats uri /
+	stats refresh 10s
+	stats admin if TRUE
+	stats auth admin:${HAPROXY_STATS_PASSWORD}
+
+# Example: replace with your own frontend/backend pairs.
+#frontend http_in
+#	bind *:80
+#	default_backend servers
+#
+#backend servers
+#	balance roundrobin
+#	server web1 192.168.1.10:80 check
+#	server web2 192.168.1.11:80 check
+EOF
+$STD haproxy -c -f /etc/haproxy/haproxy.cfg
+systemctl restart haproxy
+msg_ok "Configured HAProxy"
+
+motd_ssh
+customize
+cleanup_lxc