From 04857cad3d05f921e6fd6754e32f9154eb3819fa Mon Sep 17 00:00:00 2001
From: Georgina Shippey <georgina.shippey@bbc.co.uk>
Date: Thu, 12 Mar 2020 11:37:44 +0000
Subject: [PATCH] Add server specific backend options

Ability to add per server backend options to backend nodes.
For example if adding cookies for persistance:
haproxy_service_configs:
  ...
  - service:
      haproxy_service_name: serviceX
      ...
      haproxy_backend_nodes:
        - name: serverA
          ip_addr: 192.168.1.1
          backend_server_options:
            - "check cookie serverA"
        - name: serverB
          ip_addr: 192.168.1.2
          backend_server_options:
            - "check cookie serverB"
      haproxy_backend_arguments:
        - "cookie SERVERID insert indirect nocache"
      haproxy_backend_server_options:
        - "inter 3000"
   ...
Then the templated out server lines would look like:
server serverA 192.168.1.1 ... inter 3000 check cookie serverA
server serverB 192.168.1.2 ... inter 3000 check cookie serverB

Change-Id: Ief39bd50549c64f5f8d34e143acccf25dbbce299
---
 templates/service.j2 | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/templates/service.j2 b/templates/service.j2
index b33305e..f383bf9 100644
--- a/templates/service.j2
+++ b/templates/service.j2
@@ -127,6 +127,10 @@ backend {{ item.service.haproxy_service_name }}-back
 {% set backend_server_options = item.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 %}
@@ -161,6 +165,10 @@ backend {{ item.service.haproxy_service_name }}-back
 {% set backend_server_options = item.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 %}