small fixes to fit best practices

defaults/main.yml

@@ -1,5 +1,5 @@
 ---
-sasl_host: ""
-sasl_user: ""
-sasl_domain: ""
-sasl_passwd: "{{ vault_sasl_passwd }}" 
+postfix_relay_sasl_host: smtp.gmail.com
+postfix_relay_sasl_user: user
+postfix_relay_sasl_domain: gmail.com
+postfix_relay_sasl_passwd: secure

tasks/config.yml

@@ -1,8 +1,8 @@
 ---
 - name: Configure postfix
   template:
-    src: 'etc/postfix/main.cf.j2'
-    dest: '/etc/postfix/main.cf'
+    src: etc/postfix/main.cf.j2
+    dest: /etc/postfix/main.cf
     owner: root
     group: root
     mode: 0644
@@ -10,8 +10,8 @@
 
 - name: Create sasl
   template:
-    src: 'etc/postfix/sasl_passwd.j2'
-    dest: '/etc/postfix/sasl_passwd'
+    src: etc/postfix/sasl_passwd.j2
+    dest: /etc/postfix/sasl_passwd
     owner: root
     group: root
     mode: 0600
@@ -19,18 +19,18 @@
 
 - name: Ensure sasl_passwd.db exist
   stat:
-    path: '/etc/postfix/sasl_passwd.db'
+    path: /etc/postfix/sasl_passwd.db
   register: sasldb
 
 - name: Create sasl_passwd.db
-  command: '/usr/sbin/postmap hash:/etc/postfix/sasl_passwd'
-  when: sasldb.stat.exists == 'false' or sasl_result.changed
+  command: /usr/sbin/postmap hash:/etc/postfix/sasl_passwd
+  when: not sasldb.stat.exists or sasl_result.changed
   register: sasldb_update
   notify: postfix_restart
 
 - name: Set permissions for sasl_passwd.db
   file:
-    path: '/etc/postfix/sasl_passwd.db'
+    path: /etc/postfix/sasl_passwd.db
     owner: root
     group: root
     mode: 0600
@@ -38,8 +38,8 @@
 
 - name: Override outgoing header
   template:
-    src: 'etc/postfix/sender_canonical.j2'
-    dest: '/etc/postfix/sender_canonical'
+    src: etc/postfix/sender_canonical.j2
+    dest: /etc/postfix/sender_canonical
     owner: root
     group: root
     mode: 0600
@@ -47,11 +47,11 @@
 
 - name: Ensure sender_canonical.db exist
   stat:
-    path: '/etc/postfix/sender_canonical.db'
+    path: /etc/postfix/sender_canonical.db
   register: senderdb
 
 - name: Hash sender_canoncial
-  command: '/usr/sbin/postmap hash:/etc/postfix/sender_canonical'
-  when: senderdb.stat.exists == false or sender_result.changed
+  command: "/usr/sbin/postmap hash:/etc/postfix/sender_canonical"
+  when: not senderdb.stat.exists or sender_result.changed
   register: senderdb_update
   notify: postfix_restart

templates/etc/postfix/sasl_passwd.j2

@@ -1,3 +1,3 @@
 # {{ ansible_managed }}
 
-{{ sasl_host }} {{ sasl_user }}@{{ sasl_domain }}:{{ sasl_passwd }}
+{{ postfix_relay_sasl_host }} {{ postfix_relay_sasl_user }}@{{ postfix_relay_sasl_domain }}:{{ postfix_relay_sasl_passwd }}

templates/etc/postfix/sender_canonical.j2

@@ -1,3 +1,3 @@
 # {{ ansible_managed }}
 
-root {{ ansible_hostname }}@{{ sasl_domain }}
+root {{ ansible_hostname }}@{{ postfix_relay_sasl_domain }}