Ansible playbook to install NTP or Chrony

ntp-or-chrony-playbook.yml

- name: Decide whether ntp or chrony is used for the target
  set_fact:
    use_chrony: true
  when: ansible_os_family == 'RedHat' and ansible_distribution_major_version >= '7'

- name: Install either ntp or chrony
  package:
    name: >-
      {%- if use_chrony is defined -%}chrony
      {%- else -%}ntp
      {%- endif -%}      
    state: present

- name: Prepare /etc/ntp.conf
  copy: src=ntp.conf dest=/etc/ntp.conf owner=root group=root mode=0644
  when: use_chrony is not defined

- name: Remove /etc/ntp.conf when chrony is used
  file:
    path: /etc/ntp.conf
    state: absent
  when: use_chrony is defined

- name: Prepare /etc/chrony.conf
  copy: src=chrony.conf dest=/etc/chrony.conf owner=root group=root mode=0644
  when: use_chrony is defined

- name: Check either ntp or chrony is running and enabled
  service:
    name: >-
      {%- if use_chrony is defined -%}chronyd
      {%- else -%}ntp
      {%- endif -%}
    state: started
    enabled: yes

- name: Uninstall ntp when chrony is installed
  package:
    name: ntp
    state: absent
  when: use_chrony is defined