set some password for the use

playbook/roles/vm-bootstrap/tasks/user.yml

 ---
 
   - name: create netadmin
-    user: name=netadmin shell=/bin/bash groups=root
+    user: name=netadmin shell=/bin/bash groups=root password=$6$rounds=100000$RcjiHRBJa/ORaqst$0L2hFmL5kwGpP6sY2r.hENK3DR5YLdlSDf.r57hwsLjKioYx36CdeLso.52av1UA61rhWIJWdoRYI5bFz.RAC1
 
   - name: remove other unwanted users
     user: name={{ item }} state=absent