ansible-inventories/arocom#185 Make HaProxy maxconn values configurable, per inventory or per host

defaults/main.yml

@@ -5,6 +5,8 @@ proxy_timeout_connect: '5s'
 proxy_timeout_client: '20s'
 proxy_timeout_server: '45s'
 proxy_redirect_aliase: false
+proxy_maxconn: 100
+proxy_varnish_maxconn: 1000
 proxy_blacklist:
   ip:
     - '146.185.176.158'

templates/haproxy_cfg

@@ -216,7 +216,7 @@ backend backend_{{host}}
 {% if host == inventory_hostname or host == 'localhost' %}
   http-response deny
 {% else %}
-  server server_{{host}} {{hostvars[host]['static_ipv4']}}:80 maxconn 100
+  server server_{{host}} {{hostvars[host]['static_ipv4']}}:80 maxconn {{hostvars[host]['proxy_maxconn']|default(proxy_maxconn)}}
 {% endif %}
 
 backend backend_{{host}}_bigpipe
@@ -224,7 +224,7 @@ backend backend_{{host}}_bigpipe
   http-response deny
 {% else %}
   no option http-buffer-request
-  server server_{{host}} {{hostvars[host]['static_ipv4']}}:80 maxconn 100
+  server server_{{host}} {{hostvars[host]['static_ipv4']}}:80 maxconn {{hostvars[host]['proxy_maxconn']|default(proxy_maxconn)}}
 {% endif %}
 
 backend backend_{{host}}_https
@@ -232,7 +232,7 @@ backend backend_{{host}}_https
   http-response deny
 {% else %}
   http-response set-header Strict-Transport-Security "max-age=16000000; includeSubDomains; preload;"
-  server server_{{host}} {{hostvars[host]['static_ipv4']}}:80 maxconn 100
+  server server_{{host}} {{hostvars[host]['static_ipv4']}}:80 maxconn {{hostvars[host]['proxy_maxconn']|default(proxy_maxconn)}}
 {% endif %}
 
 backend backend_{{host}}_https_bigpipe
@@ -241,7 +241,7 @@ backend backend_{{host}}_https_bigpipe
 {% else %}
   no option http-buffer-request
   http-response set-header Strict-Transport-Security "max-age=16000000; includeSubDomains; preload;"
-  server server_{{host}} {{hostvars[host]['static_ipv4']}}:80 maxconn 100
+  server server_{{host}} {{hostvars[host]['static_ipv4']}}:80 maxconn {{hostvars[host]['proxy_maxconn']|default(proxy_maxconn)}}
 {% endif %}
 {% endfor %}
 {% if varnish_host|default(false) %}
@@ -253,9 +253,9 @@ backend backend_varnish
   option forwardfor
   hash-type consistent
 {% if varnish_host == inventory_hostname %}
-  server varnish 127.0.0.1:6081 maxconn 1000
+  server varnish 127.0.0.1:6081 maxconn {{proxy_varnish_maxconn}}
 {% else %}
-  server varnish {{ varnish_host_ip|default('') }}:6081 maxconn 1000
+  server varnish {{ varnish_host_ip|default('') }}:6081 maxconn {{proxy_varnish_maxconn}}
 {% endif %}
 
 backend backend_varnish_bigpipe
@@ -265,9 +265,9 @@ backend backend_varnish_bigpipe
   option forwardfor
   hash-type consistent
 {% if varnish_host == inventory_hostname %}
-  server varnish 127.0.0.1:6081 maxconn 1000
+  server varnish 127.0.0.1:6081 maxconn {{proxy_varnish_maxconn}}
 {% else %}
-  server varnish {{ varnish_host_ip|default('') }}:6081 maxconn 1000
+  server varnish {{ varnish_host_ip|default('') }}:6081 maxconn {{proxy_varnish_maxconn}}
 {% endif %}
 {% endif %}