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

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

	# Default ciphers to use on SSL-enabled listening sockets.
	# For more information, see ciphers(1SSL). This list is from:
	#  https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
	# An alternative list with additional directives can be obtained from
	#  https://mozilla.github.io/server-side-tls/ssl-config-generator/?server=haproxy
	ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AESGCM:RSA+AES:!aNULL:!MD5:!DSS
	ssl-default-bind-options no-sslv3

defaults
	log	global
	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 http
	mode http
	bind *:80 name frontend-http
	tcp-request inspect-delay 3s
	acl letsencrypt path_beg /.well-known/acme-challenge
	redirect scheme https code 301 if !letsencrypt
{% for server in groups['webservers'] | difference(groups['disabled_loadbalanced_webservers']) | sort %}
{% for hostname in hostvars[server]['web_hostname'] | sort(attribute='host') %}
	## {{ hostname.host }} configuration
	acl host_{{ hostname.host }} hdr(host) -i {{ hostname.host }}
	use_backend http_{{ hostvars[server].ansible_host }} if letsencrypt host_{{ hostname.host }}

{% endfor %}
{% endfor %}

frontend https
	mode tcp
	option tcplog
	bind *:443 name frontend-https
	tcp-request inspect-delay 3s
	tcp-request content accept if { req.ssl_hello_type 1 }
{% for server in groups['webservers'] | difference(groups['disabled_loadbalanced_webservers']) | sort %}
{% for hostname in hostvars[server]['web_hostname'] | sort(attribute='host') %}
	## {{ hostname.host }} configuration
	acl host_{{ hostname.host }} req.ssl_sni -i {{ hostname.host }}
{% if hostname.allowlistv4 is defined %}
	acl network_allowed_{{ hostname.host }} src {% for addrv4 in hostname.allowlistv4 %}{{ addrv4 }}{% endfor %}

{% endif %}
	use_backend https_{{ hostvars[server].ansible_host }} if host_{{ hostname.host }}{% if hostname.allowlistv4 is defined %} network_allowed_{{ hostname.host }}{% endif %}


{% endfor %}
{% endfor %}

{% for server in groups['webservers'] | difference(groups['disabled_loadbalanced_webservers']) | sort %}
## {{ hostvars[server].ansible_host }} configuration
backend http_{{ hostvars[server].ansible_host }}
	mode http
	server host_{{ hostvars[server].ansible_host.split('.')|join('_') }} {{ hostvars[server]['ansible_default_ipv4']['address'] }}:80

backend https_{{ hostvars[server].ansible_host }}
	mode tcp
	server host_{{ hostvars[server].ansible_host.split('.')|join('_') }} {{ hostvars[server]['ansible_default_ipv4']['address'] }}:443

{% endfor %}

## Stats
listen stats
	bind localhost:80
	mode http
	log global
	stats enable
	stats show-legends
	stats uri /haproxy-status
	stats hide-version