# {{ ansible_managed }}

{% set request_option = service.haproxy_balance_type | default("http") -%}
{% if service.haproxy_backend_port is not defined %}
  {% set haproxy_backend_port = service.haproxy_port %}
{% else %}
  {% set haproxy_backend_port = service.haproxy_backend_port %}
{% endif -%}
{% if service.haproxy_check_port is not defined %}
  {% set haproxy_check_port = haproxy_backend_port %}
{% else %}
  {% set haproxy_check_port = service.haproxy_check_port %}
{% endif -%}

{% if service.haproxy_bind is defined %}
{%   set vip_binds = service.haproxy_bind %}
{% else %}
{%   set vip_binds = haproxy_tls_vip_binds + extra_lb_vip_addresses %}
{% endif %}

{% if not service.haproxy_backend_only | default(false) %}
{%   for vip_bind in vip_binds %}
{%     if vip_bind is not string and vip_bind is mapping %}
{%       set vip_address = vip_bind['address'] %}
{%       set vip_interface = vip_bind['interface'] | default('') %}
{%     else %}
{%       set vip_address = vip_bind %}
{%       set vip_interface = '' %}
{%     endif %}
{%     if service.haproxy_redirect_http_port is defined and service.haproxy_ssl %}
{%       if (loop.index == 1 or service.haproxy_ssl_all_vips | default(false) | bool) %}

frontend {{ service.haproxy_service_name }}-redirect-front-{{ loop.index }}
bind {{ vip_address }}:{{ service.haproxy_redirect_http_port }}{{ (vip_interface is truthy) | ternary(' interface ' ~ vip_interface, '') }}
    mode http
    redirect scheme {{ service.haproxy_redirect_scheme  | default('https if !{ ssl_fc }') }}
{%         if service.haproxy_frontend_acls is defined %}
{%           for key, value in service.haproxy_frontend_acls.items() %}
    acl {{ key }} {{ value.rule }}
    use_backend {{ value.backend_name | default(service.haproxy_service_name) }}-back if {{ key }}
{%           endfor %}
{%           for entry in haproxy_frontend_redirect_extra_raw %}
    {{ entry }}
{%           endfor %}
{%         endif %}
{%       endif %}
{%     endif %}

{#     service-redirect.j2 allows frontend to handle both HTTP and HTTPS connections. #}
{#     This is especially useful during HTTP->HTTPS service endpoint transition. #}
{%     if service.haproxy_accept_both_protocols | default(false) %}
{%       include 'service-redirect.j2' %}
{%     else %}
{%       set haproxy_ssl_path=haproxy_ssl_cert_path + "/haproxy_" + (haproxy_host | default(ansible_facts['hostname'])) + "-" + ((vip_interface is truthy) | ternary(vip_address ~ '-' ~ vip_interface, vip_address)) + ".pem" %}
frontend {{ service.haproxy_service_name }}-front-{{ loop.index }}
    bind {{ vip_address }}:{{ service.haproxy_port }}{{ (vip_interface is truthy) | ternary(' interface ' ~ vip_interface, '') }} {% if (service.haproxy_ssl | default(false) | bool) and (loop.index == 1 or vip_address in extra_lb_tls_vip_addresses or (service.haproxy_ssl_all_vips | default(false) | bool and vip_address not in extra_lb_vip_addresses)) %}ssl crt {{ service.haproxy_ssl_path | default(haproxy_ssl_path) }}{% if service.haproxy_frontend_h2 | default(haproxy_frontend_h2) and request_option == "http" %} alpn h2,http/1.1{% endif %}{% endif %}

{%       if request_option == "http" %}
    option httplog
    option forwardfor except 127.0.0.0/8
{%         if service.haproxy_http_keepalive_mode is defined %}
    option {{ service.haproxy_http_keepalive_mode }}
{%         endif %}
{%       elif request_option == "tcp" %}
    option tcplog
{%       endif %}
{%       if service.haproxy_timeout_client is defined %}
    timeout client {{ service.haproxy_timeout_client }}
{%       endif %}
{%       if service.haproxy_allowlist_networks is defined %}
    acl allow_list src 127.0.0.1/8 {{ service.haproxy_allowlist_networks | join(' ') }}
    tcp-request content accept if allow_list
    tcp-request content reject
{%       endif %}
{%       if service.haproxy_acls is defined %}
{%         for key, value in service.haproxy_acls.items() %}
    acl {{ key }} {{ value.rule }}
{%           if not service.haproxy_frontend_only | default(false) %}
    use_backend {{ value.backend_name | default(service.haproxy_service_name) }}-back if {{ key }}
{%           endif %}
{%         endfor %}
{%       endif %}
{%       for entry in service.haproxy_maps | default([])  %}
    {{ entry }}
{%       endfor %}
{%       if (service.haproxy_ssl | default(false) | bool) and request_option == 'http' and (loop.index == 1 or vip_address in extra_lb_tls_vip_addresses or (service.haproxy_ssl_all_vips | default(false) | bool and vip_address not in extra_lb_vip_addresses)) %}
    http-request add-header X-Forwarded-Proto https
{%       endif %}
    mode {{ service.haproxy_balance_type }}
{%       if (not service.haproxy_frontend_only | default(false)) or ((service.haproxy_default_backend is defined) and (service.haproxy_default_backend | length > 0)) %}
    default_backend {{ service.haproxy_default_backend | default(service.haproxy_service_name) }}-back
{%       endif %}
{%       for entry in (service.haproxy_frontend_raw|default([])) + haproxy_frontend_extra_raw %}
    {{ entry }}
{%       endfor %}
{%     endif %}
{%   endfor %}
{% endif %}

{% if not service.haproxy_frontend_only | default(false) %}
{%   set backend_options = service.haproxy_backend_options|default([]) %}
{%   set backend_arguments = service.haproxy_backend_arguments|default([]) %}

backend {{ service.haproxy_service_name }}-back
    mode {{ service.haproxy_balance_type }}
    balance {{ service.haproxy_balance_alg|default("leastconn") }}
{%   if service.haproxy_timeout_server is defined %}
    timeout server {{ service.haproxy_timeout_server }}
{%   endif %}
{%   if (service.haproxy_stick_table_enabled | default(true) | bool) %}
{%     set stick_table = service.haproxy_stick_table|default( haproxy_stick_table | default([])) %}
{%     for entry in stick_table %}
    {{ entry }}
{%     endfor %}
{%   endif %}
{%   if request_option == "http" %}
    option forwardfor
{%   endif %}
{%   for option in backend_options %}
    option {{ option }}
{%   endfor %}
{%   for argument in backend_arguments %}
    {{ argument }}
{%   endfor %}
{%   set backend_httpcheck_options = service.haproxy_backend_httpcheck_options|default([]) %}
{%   if backend_httpcheck_options %}
    option httpchk
{%     for option in backend_httpcheck_options %}
    http-check {{ option }}
{%     endfor %}
{%   endif %}


{%   for host_name in service.haproxy_backend_nodes %}
{%     if hostvars[host_name] is defined %}
{%       set ip_addr = hostvars[host_name]['ansible_host'] %}
{%     endif %}
{%     set entry = [] %}
{%     set _ = entry.append("server") %}
{%     set _ = entry.append((host_name.name | default(host_name)) | string) %}
{%     set _ = entry.append((host_name.ip_addr | default(ip_addr)) + ":" + (host_name.backend_port | default(haproxy_backend_port)) | string) %}
{%     set _ = entry.append("check") %}
{%     set _ = entry.append("port") %}
{%     set _ = entry.append(host_name.backend_port | default(haproxy_check_port) | string) %}
{%     set _ = entry.append("inter") %}
{%     set _ = entry.append(service.interval | default(haproxy_interval) | string) %}
{%     set _ = entry.append("rise") %}
{%     set _ = entry.append(service.backend_rise | default(haproxy_rise | string)) %}
{%     set _ = entry.append("fall") %}
{%     set _ = entry.append(service.backend_fall | default(haproxy_fall | string)) %}
{%     if service.haproxy_backend_ssl | default(False) %}
{%       set _ = entry.append("ssl") %}
{%       if service.haproxy_backend_ssl_check | default(service.haproxy_backend_ssl) %}
{%         set _ = entry.append("check-ssl") %}
{%       endif %}
{%       if service.haproxy_backend_ca | default(False) %}
{%         set _ = entry.append("ca-file") %}
{%         set _ = entry.append(service.haproxy_backend_ca is string | ternary(service.haproxy_backend_ca, haproxy_system_ca)) %}
{%       else %}
{%         set _ = entry.append("verify none") %}
{%       endif %}
{%       if service.haproxy_backend_h2 | default(haproxy_backend_h2) and request_option == "http" %}
{%         set _ = entry.append("alpn h2,http/1.1") %}
{%       endif %}
{%     else %}
{%       if service.haproxy_backend_h2 | default(haproxy_backend_h2) and request_option == "http" %}
{%         set _ = entry.append("proto h2") %}
{%       endif %}
{%     endif %}
{%     set backend_server_options = service.haproxy_backend_server_options|default([]) %}
{%     for option in backend_server_options %}
{%       set _ = entry.append(option) %}
{%     endfor %}
{%     set backend_per_server_options = host_name.backend_server_options|default([]) %}
{%     for option in backend_per_server_options %}
{%       set _ = entry.append(option) %}
{%     endfor %}
    {{ entry | join(' ') }}
{%   endfor %}

{%   for host_name in service.haproxy_backup_nodes|default([]) %}
{%     if hostvars[host_name] is defined %}
{%       set ip_addr = hostvars[host_name]['ansible_host'] %}
{%     endif %}
{%     set entry = [] %}
{%     set _ = entry.append("server") %}
{%     set _ = entry.append((host_name.name | default(host_name)) | string) %}
{%     set _ = entry.append((host_name.ip_addr | default(ip_addr)) + ":" + haproxy_backend_port | string) %}
{%     set _ = entry.append("check") %}
{%     set _ = entry.append("port") %}
{%     set _ = entry.append(haproxy_check_port | string) %}
{%     set _ = entry.append("inter") %}
{%     set _ = entry.append(haproxy_interval | string) %}
{%     set _ = entry.append("rise") %}
{%     set _ = entry.append(service.backup_rise|default(haproxy_rise | string)) %}
{%     set _ = entry.append("fall") %}
{%     set _ = entry.append(service.backup_fall|default(haproxy_fall | string)) %}
{%     set _ = entry.append("backup") %}
{%     if service.haproxy_backend_ssl | default(False) %}
{%       set _ = entry.append("ssl") %}
{%       if service.haproxy_backend_ssl_check | default(service.haproxy_backend_ssl) %}
{%         set _ = entry.append("check-ssl") %}
{%       endif %}
{%       if service.haproxy_backend_ca | default(False) %}
{%         set _ = entry.append("ca-file") %}
{%         set _ = entry.append(service.haproxy_backend_ca is string | ternary(service.haproxy_backend_ca, haproxy_system_ca)) %}
{%       else %}
{%         set _ = entry.append("verify none") %}
{%       endif %}
{%     endif %}
{%     set backend_server_options = service.haproxy_backend_server_options|default([]) %}
{%     for option in backend_server_options %}
{%       set _ = entry.append(option) %}
{%     endfor %}
{%     set backend_per_server_options = host_name.backend_server_options|default([]) %}
{%     for option in backend_per_server_options %}
{%       set _ = entry.append(option) %}
{%     endfor %}
    {{ entry | join(' ') }}
{%   endfor %}
{% endif %}