default to run on same host as postfixadmin

defaults/main.yaml

@@ -1,7 +1,9 @@
+dovecot_postfixadmin_mysql_host: localhost
 dovecot_postfixadmin_mysql_database: postfixadmin
 dovecot_postfixadmin_mysql_username: dovecot
 vmail_uid: 500
 vmail_gid: 500
 dovecot_lmtp_inet_listener: false
-dovecot_unix_listeners_for_postfix: false
+dovecot_unix_listeners_for_postfix: true
 dovecot_auth_inet_listener: false
+dovecot_auth: sql

tasks/auth/sql.yaml

@@ -3,7 +3,7 @@
 - name: dovecot sql config
   template:
     src: dovecot-sql.conf.ext.j2
-    dest: /etc/dovecot/dovecot-sql.conf.ext.j2
+    dest: /etc/dovecot/dovecot-sql.conf.ext
   notify:
     - reload dovecot
 
@@ -12,6 +12,6 @@
     name: "{{dovecot_postfixadmin_mysql_username}}"
     password: "{{dovecot_postfixadmin_mysql_password}}"
     priv: "{{dovecot_postfixadmin_mysql_database}}.*:SELECT"
-    host: "{{inventory_hostname}}"
+    host: "{{dovecot_postfixadmin_mysql_host}}"
     state: present
-  delegate_to: "{{dovecot_postfixadmin_mysql_host}}"
+  delegate_to: "{{(dovecot_postfixadmin_mysql_host=='localhost')|ternary(inventory_hostname,dovecot_postfixadmin_mysql_host)}}"