# We run two servers listening different ports
# to be able to check replication (one server for master, another for standby).

- name: Install MariaDB repo
  yum_repository:
    name: MariaDB
    description: MariaDB official repo
    baseurl: http://yum.mariadb.org/10.1/centos7-amd64
    gpgkey: https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
    gpgcheck: yes

- name: Install MariaDB packages on RedHat family OS
  yum:
    name: "{{ item }}"
    enablerepo: epel
  loop:
  - MariaDB-server
  - MariaDB-client
  when: ansible_os_family == 'RedHat'

- name: Create directories for standby
  file:
    state: directory
    path: "{{ item }}"
    owner: mysql
    group: mysql
  loop:
  - "{{ master_datadir }}"
  - "{{ standby_datadir }}"
  - "{{ standby_logdir }}"
  - "{{ default_logdir }}"

- name: Copy cnf template
  template:
    src: my.cnf.j2
    dest: /etc/my.cnf
    owner: mysql
    group: mysql
    force: yes

- name: Initialize DBs
  shell: 'mysql_install_db --user=mysql --datadir={{ item }}'
  loop:
  - '{{ master_datadir }}'
  - '{{ standby_datadir }}'

- name: Start services
  shell: 'mysqld_multi --log=/var/log/mariadb/mariadb.log start 1,2'

- name: Pause
  pause: seconds=3

########### For painful debug uncomment the lines below ##
#- name: DEBUG Check stratup log
#  shell: cat /var/log/mariadb/mariadb.log

#- name: DEBUG Check mysql_safe err log
#  shell: cat '{{  mysql_safe_err_log }}'

#- name: DEBUG Check processes
#  shell: 'ps aux | grep mysqld | grep -v "grep\|root"'

#- name: DEBUG
#  yum: name=net-tools

#- name: DEBUG
#  shell: "netstat -ntpl"

#- name: DEBUG
#  shell: cat /etc/my.cnf
##########################################################

- name: Check connection to the master
  shell: 'echo "SHOW DATABASES;" | mysql -P {{ master_port }} -h 127.0.0.1'

- name: Check connection to the standby
  shell: "echo \"SHOW VARIABLES LIKE 'datadir';\" | mysql -P {{ standby_port }} -h 127.0.0.1"