feat: icinga mail notifications

roles/monitoring-master/templates/mail_notifications.conf

@@ -0,0 +1,25 @@
+apply Notification "mail-icingaadmin" to Host {
+  import "mail-host-notification"
+
+  user_groups = host.vars.notification.mail.groups
+  users = host.vars.notification.mail.users
+
+  interval = 2h
+
+  vars.notification_logtosyslog = true
+  vars.notification_from = "Icinga <{{ smtp_service_user }}@atlantishq.de>"
+
+  assign where host.vars.notification.mail
+}
+
+apply Notification "mail-icingaadmin" to Service {
+  import "mail-service-notification"
+
+  user_groups = host.vars.notification.mail.groups
+  users = host.vars.notification.mail.users
+
+  interval = 2h
+  vars.notification_logtosyslog = true
+  vars.notification_from = "Icinga <{{ smtp_service_user }}@atlantishq.de>"
+  assign where host.vars.notification.mail
+}

roles/monitoring-master/templates/postfix_main.cf

@@ -0,0 +1,13 @@
+# Set username and password
+smtp_sasl_password_maps = static:{{ smtp_service_user }}:{{ smtp_service_pass }}
+smtp_sasl_security_options = noanonymous
+
+# Turn on tls encryption 
+# smtp_tls_security_level = encrypt
+header_size_limit = 4096000
+
+# Set external SMTP relay host here IP or hostname accepted along with a port number. 
+relayhost = {{ smtp_internal_host }}:25
+
+# accept email from our web-server only (adjust to match your VPC/VLAN etc)
+inet_interfaces = 127.0.0.1