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

Ansible version for a secure MySQL installation.

mysql_secure_installation.yml

- hosts: staging_mysql
  user: ec2-user
  sudo: yes

  tasks:
    - name: Install MySQL
      action: yum name={{ item }}
      with_items:
        - MySQL-python
        - mysql
        - mysql-server

    - name: Start the MySQL service
      action: service name=mysqld state=started

    # '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
      mysql_user: name=root host={{ item }} password={{ mysql_root_password }}
      with_items:
        - "{{ ansible_hostname }}"
        - 127.0.0.1
        - ::1
        - localhost

    - name: copy .my.cnf file with root password credentials
      template: src=templates/root/my.cnf.j2 dest=/root/.my.cnf owner=root mode=0600

    - name: delete anonymous MySQL server user for $server_hostname
      action: mysql_user user="" host="{{ server_hostname }}" state="absent"

    - name: delete anonymous MySQL server user for localhost
      action: mysql_user user="" state="absent"

    - name: remove the MySQL test database
      action: mysql_db db=test state=absent

templates/root/my.cnf.j2

[client]
user=root
password={{ mysql_root_password }}

References

• The original answer by Lorin Hochstein
• https://github.com/gaspaio/ansible-devbox/blob/master/roles/mysql/tasks/server.yml