Add a flag to disable keepalived mail notification configuration

Signed-off-by: Norman Ziegner <[email protected]>

Author: Normo

roles/keepalived/README.md

@@ -151,6 +151,14 @@ Path to the Keepalived PID file:
 keepalived_pid_file_path: "/run/keepalived/keepalived.pid"
 ```
 
+#### Configure email notification
+
+Flag to enable/disable email notification settings:
+
+```yaml
+keepalived_enable_mail_notification: true
+```
+
 #### Configure notification email address
 
 List of email accounts that will receive notification mails:

roles/keepalived/templates/keepalived.conf.j2

@@ -11,6 +11,7 @@ global_defs {
 {% if keepalived_set_script_security_flag %}
     enable_script_security
 {% endif %}
+{% if keepalived_enable_mail_notification | default(false) %}
 {% if keepalived_notification_email | default([]) | lenth > 0 %}
     notification_email {
 {% for email in keepalived_notification_email %}
@@ -21,6 +22,7 @@ global_defs {
     notification_email_from {{ keepalived_notification_email_from }}
     smtp_server {{ keepalived_smtp_server }}
     smtp_connect_timeout 30
+{% endif %}
 {% if keepalived_router_id is defined %}
     router_id {{ keepalived_router_id }}
 {% endif %}