---
- name: Check if MySQL is already installed.
  stat: path=/etc/init.d/mysql
  register: mysql_installed

- name: Update apt cache if MySQL is not yet installed.
  apt: update_cache=yes
  when: mysql_installed.stat.exists == false

- name: Ensure MySQL Python libraries are installed.
  apt: "name=python-mysqldb state=installed"

- name: Ensure MySQL packages are installed.
  apt: "name={{ item }} state=installed"
  with_items: "{{ mysql_packages }}"
  register: deb_mysql_install_packages

# Because Ubuntu starts MySQL as part of the install process, we need to stop
# mysql and remove the logfiles in case the user set a custom log file size.
- name: Ensure MySQL is stopped after initial install.
  service: "name={{ mysql_daemon }} state=stopped"
  when: mysql_installed.stat.exists == false

- name: Delete innodb log files created by apt package after initial install.
  shell: "rm -f {{ mysql_datadir }}/ib_logfile[01]"
  when: mysql_installed.stat.exists == false