Add template 'install_postfix_advanced.conf.j2'.

roles/common/templates/usr/local/src/mailsystem/conf/install_postfix_advanced.conf.j2

@@ -0,0 +1,20 @@
+# {{ ansible_managed }}
+
+# ----------------------------------------------------
+# ---
+# - Parameter Settings Postfix Advanced System
+# - 
+# - Note: You need not to create a configuration file,
+# -       the installation script will do that.
+# ---
+# ----------------------------------------------------
+
+_HOSTNAME={{ hostname }}
+_IPV4='{{ ipv4_address | default(omit) }}'
+_IPV6='{{ ipv6_address | default(omit) }}'
+_ADMIN_EMAIL=argus@oopen.de
+_SASL_AUTH=false
+_SASL_USER=
+_SASL_PASS=
+_RELAY_HOST=false
+