Merge "Adding HAProxy backend options"

examples/playbook.yml

@@ -6,12 +6,14 @@
   vars:
     haproxy_service_configs:
       - service:
-          hap_service_name: group_name
-          hap_backend_nodes: "{{ groups['group_name'][0] }}"
-          hap_backup_nodes: "{{ groups['group_name'][1:] }}"
-          hap_port: 80
-          hap_balance_type: http
-          hap_backend_options:
+          haproxy_service_name: group_name
+          haproxy_backend_nodes: "{{ groups['group_name'][0] }}"
+          haproxy_backup_nodes: "{{ groups['group_name'][1:] }}"
+          haproxy_port: 80
+          haproxy_balance_type: http
+          haproxy_backend_options:
             - "forwardfor"
             - "httpchk"
             - "httplog"
+          haproxy_backend_aguments:
+            - 'http-check expect string OK'

releasenotes/notes/haproxy-backend-arguments-3b1dca299c7a8296.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - The new option `haproxy_backend_arguments` can be utilized to add
+    arbitrary options to a HAProxy backend like tcp-check or http-check.

templates/service.j2

@@ -65,6 +65,7 @@ frontend {{ item.service.haproxy_service_name }}-front-{{ loop.index }}
 {% endfor %}
 
 {% set backend_options = item.service.haproxy_backend_options|default([]) %}
+{% set backend_arguments = item.service.haproxy_backend_arguments|default([]) %}
 
 backend {{ item.service.haproxy_service_name }}-back
     mode {{ item.service.haproxy_balance_type }}
@@ -83,6 +84,9 @@ backend {{ item.service.haproxy_service_name }}-back
 {% for option in backend_options %}
     option {{ option }}
 {% endfor %}
+{% for argument in backend_arguments %}
+    {{ argument }}
+{% endfor %}
 {% set backend_httpcheck_options = item.service.haproxy_backend_httpcheck_options|default([]) %}
 {% for option in backend_httpcheck_options %}
     http-check {{ option }}