move changed_when to tasks instead of block

tasks/auth.yml

@@ -5,19 +5,21 @@
       src: /etc/mongod.conf
       dest: /etc/mongod.conf.bak
       remote_src: True
+    changed_when: False
 
   - name: Deploy config file without auth
     template:
       src: etc/mongod_init.conf.j2
       dest: /etc/mongod.conf
       mode: 0644
+    changed_when: False
 
   - name: Restart service
     service:
       name: mongod
       state: restarte
-  become: True
     changed_when: False
+  become: True
 
 - name: Create admin user
   mongodb_user:
@@ -33,6 +35,7 @@
       src: /etc/mongod.conf.bak
       dest: /etc/mongod.conf
       remote_src: True
+    changed_when: False
 
   - name: Restart service
     service: