Ansible idempotent MySQL installation Playbook

Question

I want to setup a MySQL server on AWS, using Ansible for the configuration management. I am using the default AMI from Amazon (ami-3275ee5b), which uses yum

Answer 1

It is important to start/re-start the mysql server prior to setting the root password. Also, I had tried everything posted up to this post [date] and discovered it is imperative to pass login_password and login_user.

(i.e.) Any Plays after setting the mysql_user user:root and password= {{ SOMEPASSWORD }}, you must connect using login_password and login_user for any subsequent play.

Note: The with_items below is based on what Ansible &/ MariaDB default hosts created.

Example for Securing a MariaDB Server:

---
# 'secure_mariadb.yml'

- name: 'Ensure MariaDB server is started and enabled on boot'
  service: name={{ mariadb_service_name }} state=started enabled=yes

# localhost needs to be the last item for idempotency, see
# http://ansible.cc/docs/modules.html#mysql-user
- name: 'Update Mysql Root Password'
  mysql_user: name=root
              host={{ item }}
              password={{ root_db_password }}
              priv=*.*:ALL,GRANT
              state=present
  with_items:
    - 127.0.0.1
    - ::1
    - instance-1 # Created by MariaDB to prevent conflicts between port and sockets if multi-instances running on the same computer.
    - localhost

- name: 'Create MariaDB main configuration file'
  template: >
    src=my.cnf.j2
    dest=/etc/mysql/my.cnf
    owner=root
    group=root
    mode=0600

- name: 'Ensure anonymous users are not in the database'
  mysql_user: login_user=root 
              login_password={{ root_db_password }}
              name=''
              host={{ item }}
              state=absent
  with_items:
    - 127.0.0.1
    - localhost

- name: 'Remove the test database'
  mysql_db: login_user=root 
            login_password={{ root_db_password }}
            name=test
            state=absent

- name: 'Reload privilege tables'
  command: 'mysql -ne "{{ item }}"'
  with_items:
    - FLUSH PRIVILEGES
  changed_when: False

- name: 'Ensure MariaDB server is started and enabled on boot'
  service: name={{ mariadb_service_name }} state=started enabled=yes


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