Use variables for mysql queries

defaults/main.yml

@@ -5,6 +5,10 @@ mail_db_password: "{{ vault_mail_admin_password }}"
 mail_db_name: 'mail'
 admin_password: "{{ mail_admin_password }}"
 mail_admin_username: 'mail_admin'
+mail_db_users_table_name: 'users'
+mail_db_users_password_field: 'password'
+mail_db_users_username_field: 'email'
+mail_db_users_quota_field: 'quota'
 dns_resolver: 1.1.1.1
 mail_domains:
   - example.org

templates/authmysqlrc.j2

@@ -3,15 +3,15 @@ MYSQL_USERNAME {{ mail_db_user}}
 MYSQL_PASSWORD {{ mail_db_password }}
 MYSQL_PORT 0
 MYSQL_DATABASE {{ mail_db_name }}
-MYSQL_USER_TABLE users
+MYSQL_USER_TABLE {{ mail_db_users_table_name }}
-MYSQL_CRYPT_PWFIELD password
+MYSQL_CRYPT_PWFIELD {{ mail_db_users_password_field }}
-#MYSQL_CLEAR_PWFIELD password
+#MYSQL_CLEAR_PWFIELD {{ mail_db_users_password_field }}
 MYSQL_UID_FIELD 5000
 MYSQL_GID_FIELD 5000
-MYSQL_LOGIN_FIELD email
+MYSQL_LOGIN_FIELD {{ mail_db_users_username_field }}
 MYSQL_HOME_FIELD "/home/vmail"
-MYSQL_MAILDIR_FIELD CONCAT(SUBSTRING_INDEX(email,'@',-1),'/',SUBSTRING_INDEX(email,'@',1),'/')
+MYSQL_MAILDIR_FIELD CONCAT(SUBSTRING_INDEX({{ mail_db_users_username_field }},'@',-1),'/',SUBSTRING_INDEX({{ mail_db_users_username_field }},'@',1),'/')
 #MYSQL_NAME_FIELD
-MYSQL_QUOTA_FIELD quota
+MYSQL_QUOTA_FIELD {{ mail_db_users_quota_field }}
 MYSQL_OPT 0
 ##NAME: MARKER:0 # # Do not remove this section from this configuration file. This section # must be present at the end of this file.

templates/mysql-virtual_domains.cf.j2

@@ -1,5 +1,5 @@
 user = {{ mail_db_user}}
 password = {{ mail_db_password }}
 dbname = {{ mail_db_name }}
-query = SELECT domain AS virtuald FROM domains WHERE domain='%s'
+query = SELECT SUBSTRING_INDEX({{ mail_db_users_username_field }},'@',-1) AS virtuald FROM dbmail_aliases WHERE alias like '%%%s'
 hosts = 127.0.0.1

templates/mysql-virtual_email2email.cf.j2

@@ -1,5 +1,5 @@
 user = {{ mail_db_user}}
 password = {{ mail_db_password }}
 dbname = {{ mail_db_name }}
-query = SELECT email FROM users WHERE email='%s'
+query = SELECT {{ mail_db_users_username_field }} FROM {{ mail_db_users_table_name }} WHERE {{ mail_db_users_username_field }}='%s'
 hosts = 127.0.0.1

templates/mysql-virtual_mailbox_limit_maps.cf.j2

@@ -1,5 +1,5 @@
 user = {{ mail_db_user}}
 password = {{ mail_db_password }}
 dbname = {{ mail_db_name }}
-query = SELECT quota FROM users WHERE email='%s'
+query = SELECT {{ mail_db_users_quota_field }} FROM {{ mail_db_users_table_name }} WHERE {{ mail_db_users_username_field }}='%s'
 hosts = 127.0.0.1

templates/mysql-virtual_mailboxes.cf.j2

@@ -1,5 +1,5 @@
 user = {{ mail_db_user}}
 password = {{ mail_db_password }}
 dbname = {{ mail_db_name }}
-query = SELECT CONCAT(SUBSTRING_INDEX(email,'@',-1),'/',SUBSTRING_INDEX(email,'@',1),'/') FROM users WHERE email='%s'
+query = SELECT CONCAT(SUBSTRING_INDEX({{ mail_db_users_username_field }},'@',-1),'/',SUBSTRING_INDEX({{ mail_db_users_username_field }},'@',1),'/') FROM {{ mail_db_users_table_name }} WHERE {{ mail_db_users_username_field }}='%s'
 hosts = 127.0.0.1

templates/smtp.j2

@@ -1,2 +1,2 @@
-auth    required   pam_mysql.so user={{ mail_db_user}} passwd={{ mail_db_password }} host=127.0.0.1 db={{ mail_db_name }} table=users usercolumn=email passwdcolumn=password crypt=1
+auth    required   pam_mysql.so user={{ mail_db_user}} passwd={{ mail_db_password }} host=127.0.0.1 db={{ mail_db_name }} table={{ mail_db_users_table_name }} usercolumn={{ mail_db_users_username_field }} passwdcolumn={{ mail_db_users_password_field }} crypt=1
-account sufficient pam_mysql.so user={{ mail_db_user}} passwd={{ mail_db_password }} host=127.0.0.1 db={{ mail_db_name }} table=users usercolumn=email passwdcolumn=password crypt=1
+account sufficient pam_mysql.so user={{ mail_db_user}} passwd={{ mail_db_password }} host=127.0.0.1 db={{ mail_db_name }} table={{ mail_db_users_table_name }} usercolumn={{ mail_db_users_username_field }} passwdcolumn={{ mail_db_users_password_field }} crypt=1

templates/smtpd.conf.j2

@@ -7,5 +7,5 @@ sql_hostnames: 127.0.0.1
 sql_user: {{ mail_db_user}}
 sql_passwd: {{ mail_db_password }}
 sql_database: {{ mail_db_name }}
-sql_select: select password from users where email = '%u@%r'
+sql_select: select {{ mail_db_users_password_field}} from {{ mail_db_users_table_name }} where {{ mail_db_users_username_field }} = '%u@%r'
 log_level: 9