Fixes #22: Make MySQL root user password settings more reliable.

tasks/secure-installation.yml

@@ -1,20 +1,15 @@
 ---
-- name: Check if .my.cnf file already exists.
-  stat: "path={{ mysql_user_home }}/.my.cnf"
-  register: mycnf_file
-
-# 'localhost' needs to be the last item for idempotency, see
-# http://ansible.cc/docs/modules.html#mysql-user
-- name: Update MySQL root password for all root accounts.
+# 'localhost' needs to be last for idempotency.
+- name: Update MySQL root password for localhost root account.
   mysql_user:
     name: "root"
     host: "{{ item }}"
     password: "{{ mysql_root_password }}"
   with_items:
+    - "{{ ansible_hostname }}"
     - 127.0.0.1
     - ::1
     - localhost
-  when: mycnf_file.stat.exists == false
 
 # Has to be after the root password assignment, for idempotency.
 - name: Copy .my.cnf file with root password credentials.