Add support for mailers and email-alert config

Author: saif-88

README.md

@@ -400,7 +400,9 @@ Set up (the latest version of) [HAProxy](http://www.haproxy.org/) in Ubuntu syst
 * `haproxy_backend.{n}.server_dynamic.{n}.param`: [optional]: A list of parameters to apply on each backend server.
 * `haproxy_backend.{n}.retry_on`: [optional, default `[]`]: Specify when to attempt to automatically retry a failed request. Provide a list of keywords or HTTP status codes, each representing a type of failure event on which an attempt to retry the request is desired. For details, see HAProxy documentation.
 * `haproxy_backend.{n}.retries`: [optional]: Number of retries to perform on a server after a connection failure
-
+* `haproxy_backend.{n}.email_alert`: [default: `[]`]: Specify email alerts option
+* `haproxy_backend.{n}.email_alert.{n}.code`: [required]: Email alert key can be : mailers, from, to or level
+* `haproxy_backend.{n}.email_alert.{n}.value`: [required]: Email alert key value
 
 * `haproxy_backend.{n}.errorfile`: [optional]: Errorfile declarations
 * `haproxy_backend.{n}.errorfile.{n}.code`: [required]: The HTTP status code. Currently, HAProxy is capable of generating codes 200, 400, 403, 408, 500, 502, 503, and 504 (e.g. `400`)
@@ -461,6 +463,13 @@ Set up (the latest version of) [HAProxy](http://www.haproxy.org/) in Ubuntu syst
 * `haproxy_program.{n}.option`: [default: `[]`]: Options to enable
 * `haproxy_program.{n}.no_option`: [default: `[]`]: Options to inverse/disable
 
+* `haproxy_mailers`: [default: `[]`]: Mailers declarations
+* `haproxy_mailers.{n}.name`: [required]: The name of the mailers group
+* `haproxy_mailers.{n}.servers`: [default: `[]`]: SMTP servers declarations
+* `haproxy_mailers.{n}.servers.{n}.name`: [required]: SMTP server name
+* `haproxy_mailers.{n}.servers.{n}.host`: [required]: SMTP server host
+* `haproxy_mailers.{n}.servers.{n}.port`: [default: `25`]: SMTP server name port
+
 ## Dependencies
 
 None

defaults/main.yml

@@ -73,6 +73,9 @@ haproxy_ssl_map: []
 # listen section
 haproxy_listen: []
 
+# mailers section
+haproxy_mailers: []
+
 # front-end section
 haproxy_frontend: []
 

templates/etc/haproxy/backend.cfg.j2

@@ -141,6 +141,9 @@ backend {{ backend.name }}
 {% for errorfile in backend.errorfile | default([]) %}
   errorfile {{ errorfile.code }} {{ errorfile.file }}
 {% endfor %}
+{% for email_alert in backend.email_alert | default([]) %}
+  email-alert {{ email_alert.code }} {{ email_alert.value }}
+{% endfor %}
 {% for line in backend.raw_options | default([]) %}
   {{ line }}
 {% endfor %}

templates/etc/haproxy/haproxy.cfg.j2

@@ -16,6 +16,8 @@ defaults
 
 {% include 'cache.cfg.j2' %}
 
+{% include 'mailers.cfg.j2' %}
+
 {% include 'frontend.cfg.j2' %}
 
 {% include 'backend.cfg.j2' %}

templates/etc/haproxy/mailers.cfg.j2

@@ -0,0 +1,6 @@
+{% for mailer in haproxy_mailers | default([]) %}
+mailers {{ mailer.name }}
+{% for server in mailer.servers | default([]) %}
+  mailer {{ server.name }} {{ server.host }}:{{ server.port | default(25) }}
+{% endfor %}
+{% endfor %}