openstack-ansible-haproxy_server/templates/service.j2

# {{ ansible_managed }}

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

{% set vip_binds = [external_lb_vip_address] -%}
{%- if internal_lb_vip_address not in vip_binds %}
  {% set _ = vip_binds.append(internal_lb_vip_address) %}
{% endif -%}

{%- if extra_lb_vip_addresses is defined %}
{% for vip_address in extra_lb_vip_addresses %}
  {% set _ = vip_binds.append(vip_address) %}
{% endfor %}
{% endif -%}

{%- if item.service.haproxy_bind is defined %}
  {% if item.service.haproxy_bind not in vip_binds %}
    {% set _ = vip_binds.append(item.service.haproxy_bind) %}
  {% endif %}
{% endif -%}

{% for vip_bind in vip_binds %}
{% if item.service.haproxy_redirect_http_port is defined %}
{% if (loop.index == 1 or item.service.haproxy_ssl_all_vips | default(false) | bool) %}

frontend {{ item.service.haproxy_service_name }}-redirect-front-{{ loop.index }}
bind {{ vip_bind }}:{{ item.service.haproxy_redirect_http_port }}
    mode http
    redirect scheme https if !{ ssl_fc }
{% endif %}
{% endif %}

frontend {{ item.service.haproxy_service_name }}-front-{{ loop.index }}
    bind {{ vip_bind }}:{{ item.service.haproxy_port }} {% if (item.service.haproxy_ssl | default(false) | bool) and (loop.index == 1 or item.service.haproxy_ssl_all_vips | default(false) | bool) %}ssl crt {{ haproxy_ssl_pem }} ciphers {{ haproxy_ssl_cipher_suite }}{% endif %}

{% if request_option == "http" %}
    option httplog
    option forwardfor except 127.0.0.0/8
    option http-server-close
{% elif request_option == "tcp" %}
    option tcplog
{% endif %}
{% if item.service.haproxy_timeout_client is defined %}
    timeout client {{ item.service.haproxy_timeout_client }}
{% endif %}
{% if item.service.haproxy_whitelist_networks is defined %}
    acl white_list src 127.0.0.1/8 {{ item.service.haproxy_whitelist_networks | join(' ') }}
    tcp-request content accept if white_list
    tcp-request content reject
{% endif %}
{% if (item.service.haproxy_ssl | default(false) | bool) and request_option == 'http' and (loop.index == 1 or item.service.haproxy_ssl_all_vips | default(false) | bool) %}
    reqadd X-Forwarded-Proto:\ https
{% endif %}
    mode {{ item.service.haproxy_balance_type }}
    default_backend {{ item.service.haproxy_service_name }}-back
{% endfor %}

{% set backend_options = item.service.haproxy_backend_options|default([]) %}

backend {{ item.service.haproxy_service_name }}-back
    mode {{ item.service.haproxy_balance_type }}
    balance {{ item.service.haproxy_balance_alg|default("leastconn") }}
{% if item.service.haproxy_timeout_server is defined %}
    timeout server {{ item.service.haproxy_timeout_server }}
{% endif %}
    stick store-request src
    stick-table type ip size 256k expire 30m
{% if request_option == "http" %}
    option forwardfor
    option httplog
{% elif request_option == "tcp" %}
    option tcplog
{% endif %}
{% for option in backend_options %}
    option {{ option }}
{% endfor %}

{% for host_name in item.service.haproxy_backend_nodes %}
{% set entry = [] %}
{% set _ = entry.append("server") %}
{% set _ = entry.append(host_name | string) %}
{% set _ = entry.append(hostvars[host_name]['ansible_ssh_host'] + ":" + haproxy_backend_port | string) %}
{% set _ = entry.append("check") %}
{% set _ = entry.append("port") %}
{% set _ = entry.append(haproxy_backend_port | string) %}
{% set _ = entry.append("inter") %}
{% set _ = entry.append(haproxy_interval | string) %}
{% set _ = entry.append("rise") %}
{% set _ = entry.append(item.service.haproxy_backend_nodes | count | string) %}
{% set _ = entry.append("fall") %}
{% set _ = entry.append(item.service.haproxy_backend_nodes | count | string) %}
    {{ entry | join(' ') }}
{% endfor %}

{% for host_name in item.service.haproxy_backup_nodes|default([]) %}
{% set entry = [] %}
{% set _ = entry.append("server") %}
{% set _ = entry.append(host_name | string) %}
{% set _ = entry.append(hostvars[host_name]['ansible_ssh_host'] + ":" + haproxy_backend_port | string) %}
{% set _ = entry.append("check") %}
{% set _ = entry.append("port") %}
{% set _ = entry.append(haproxy_backend_port | string) %}
{% set _ = entry.append("inter") %}
{% set _ = entry.append(haproxy_interval | string) %}
{% set _ = entry.append("rise") %}
{% set _ = entry.append(item.service.haproxy_backup_nodes | count | string) %}
{% set _ = entry.append("fall") %}
{% set _ = entry.append(item.service.haproxy_backup_nodes | count | string) %}
{% set _ = entry.append("backup") %}
    {{ entry | join(' ') }}
{% endfor %}