---
########### change timezone for hosts in group bitrix-hosts
# timezone_string=
# timezone_default=
###########
# priority sequence from smallest to largest
# timezone_default -> timezone_settings_on_master -> timezone_string
- name: configure timezone
  hosts: bitrix-hosts
  vars:
    timezone_string: NOT_DEFINED
    timezone_default: Europe/Moscow
    timezone_php_update: update
  handlers:
    - name: restart httpd
      service: name=httpd state=restarted
      tags: httpd

    - name: restart mysqld
      service: name=mysqld state=restarted
      tags: mysqld
  tasks:
    - name: include variables from temporary config
      include_vars: "{{ ansible_playbook_file }}"
      when: "ansible_playbook_file != 'NOT_DEFINED'" 

    - name: gather facts about localhost/manager
      delegate_to: localhost
      time_facts: option=status
      tags: time_facts
      when: "timezone_string == 'NOT_DEFINED'"

    - name: set variables by facts from localhost/manager
      set_fact: 
        bx_tz: "{{ hostvars[inventory_hostname]['tz'] }}"
        bx_tz_is_default: "{{ hostvars[inventory_hostname]['tz_default'] }}"
        bx_tz_php: "{{ hostvars[inventory_hostname]['tz_php'] }}"
      tags: time_facts
      when: "timezone_string == 'NOT_DEFINED'"

    - name: set variables by options from command line
      set_fact:
        bx_tz: "{{ timezone_string }}"
        bx_tz_is_default: 'False'
        bx_tz_php: "not_defined"
      tags: time_facts
      when: "timezone_string != 'NOT_DEFINED'"

    - name: output debug information - env options
      debug: msg="Time will be updated on bitrix-hosts by timezone={{ bx_tz }}; default={{ bx_tz_is_default }} php_time={{ bx_tz_php }}"
      tags: time_facts

    - name: output debug information - cmd options
      debug: msg="timezone_string={{ timezone_string }} timezone_php_update={{ timezone_php_update }}"

    # /etc/sysconfig/clock file 
    # controls the interpretation of values read from the system hardware clock.
    - name: update file /etc/sysconfig/clock
      template: src=templates/sysconfig-clock.j2 dest=/etc/sysconfig/clock 
        owner=root group=root mode=0644
      tags: time_configure
      notify: restart mysqld

    # /etc/localtime
    # file configures the system-wide timezone of the local system 
    # that is used by applications for presentation to the user
    - name: remove file /etc/localtime
      file: path=/etc/localtime state=absent
      tags: time_configure
      notify: restart mysqld

    - name: create link /etc/localtime to defined timezone
      file: src=/usr/share/zoneinfo/{{ bx_tz }} 
        dest=/etc/localtime 
        state=link force=yes
      tags: time_configure
      notify: restart mysqld

    # configure nptd service
    - name: install packages for ntp services
      yum:
        pkg: "{{ packages }}"
        state: present
      vars:
        packages:
          - ntp
          - ntpdate
      tags: ntpd_configure

    - name: enable ntpd service
      service: name=ntpd state=started enabled=yes
      tags: ntpd_configure

    - name: restart ntpd service
      service: name=ntpd state=restarted
      tags: ntpd_configure

    - name: create update time string
      shell: date +"%Y-%m-%d %H:%M:%S"
      register: phpupdate_date
      when: "'bitrix-web' in group_names and bx_tz != bx_tz_php"

    - name: delete artifacts from /etc/php.d/bitrixenv.ini
      lineinfile: dest=/etc/php.d/bitrixenv.ini state=absent regexp=' by ansible manager at '
      tags: php_configure
      notify: restart httpd
      when: "'bitrix-web' in group_names and bx_tz != bx_tz_php"

    - name: update /etc/php.d/bitrixenv.ini - ansible comment
      lineinfile: dest=/etc/php.d/bitrixenv.ini state=present regexp='date.timezone' 
        line=';set timezone={{ bx_tz }} by ansible manager at {{ phpupdate_date.stdout }}' 
      tags: php_configure
      notify: restart httpd
      when: "'bitrix-web' in group_names and bx_tz != bx_tz_php"

    - name: update /etc/php.d/bitrixenv.ini - time string
      lineinfile: dest=/etc/php.d/bitrixenv.ini state=present regexp='date.timezone' 
        line='date.timezone = {{ bx_tz }}' 
      tags: php_configure
      notify: restart httpd
      when: "'bitrix-web' in group_names and bx_tz != bx_tz_php"

    - name: restart system services
      service: name={{ item }} state=restarted
      with_items:
        - rsyslog
        - crond
      tags: service