feat: use multiple ssl certificates on one frontend

CHANGELOG.md

@@ -5,6 +5,10 @@ Which is based on [Keep A Changelog](http://keepachangelog.com/)
 
 ## [Unreleased]
 
+### Added
+
+- use multiple ssl certificates on one frontend
+
 ## v1.1.0 - 2021-08-15
 
 ### Added

README.md

@@ -90,6 +90,9 @@ Install and configure haproxy
       ip: '*'
       port: 443
       ssl:
+        cert:
+          - /etc/haproxy/ssl1.pem
+          - /etc/haproxy/ssl2.pem
     default_backend: backend-app
   frontend-http:
     bind:

templates/haproxy.cfg.j2

@@ -71,7 +71,7 @@ userlist {{ userlist }}
 frontend {{ frontend }}
 {% for key, value in config.items() %}
 {% if key == "bind" %}
-	bind {{ value["ip"] }}:{{ value["port"] }}{% if value["ssl"] is defined %} ssl{% if value["ssl"]["ciphers"] is defined %} ciphers {{ value["ssl"]["ciphers"]|join(':') }}{% endif %}{% if value["ssl"]["crt"]%} crt {{ value["ssl"]["crt"] }}{% endif %}
+	bind {{ value["ip"] }}:{{ value["port"] }}{% if value["ssl"] is defined %} ssl{% if value["ssl"]["ciphers"] is defined %} ciphers {{ value["ssl"]["ciphers"]|join(':') }}{% endif %}{% if value["ssl"]["crt"]%} crt {% if value["ssl"]["crt"] is string %}{{ value["ssl"]["crt"] }}{% else %}{{ value["ssl"]["crt"]|join(' crt ') }}{% endif %}{% endif %}
 {% endif %}
 
 {% elif value is iterable and value is not string %}