Add ntp role.

roles/ntp/handlers/Debian.yml

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+---
+
+- name: Restart ntp
+  service: name=ntp state=restarted

roles/ntp/handlers/FreeBSD.yml

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+---
+
+- name: Restart ntp
+  service: name=ntpd state=restarted

roles/ntp/handlers/main.yml

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+---
+
+- include: Debian.yml
+  when: ansible_os_family == 'Debian'
+
+- include: FreeBSD.yml
+  when: ansible_distribution == 'FreeBSD'

roles/ntp/tasks/Debian.yml

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+---
+
+- name: Install ntp
+  apt: name=ntp state=present
+
+- name: Configure ntp
+  template: src=ntp.conf.j2 dest=/etc/ntp.conf
+  notify: Restart ntp
+
+- name: Start the ntp service
+  service: name=ntp state=started enabled=yes

roles/ntp/tasks/FreeBSD.yml

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+---
+
+# ntp is already installed on FreeBSD
+
+- name: Configure ntp
+  template: src=ntp.conf.j2 dest=/etc/ntp.conf
+  notify: Restart ntp
+
+- name: Start the ntp service
+  service: name=ntpd state=started enabled=yes

roles/ntp/tasks/main.yml

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+---
+# This playbook contains common plays that will be run on all nodes.
+
+- include: Debian.yml
+  when: ansible_os_family == 'Debian'
+
+- include: FreeBSD.yml
+  when: ansible_distribution == 'FreeBSD'

roles/ntp/templates/ntp.conf.j2

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+{% for srv in ntp_servers %}
+server {{ srv }} iburst
+{% endfor %}
+{% if ntp_peers is defined %}
+
+{% for peer in ntp_peers %}
+peer {{ peer }}
+{% endfor %}
+{% endif %}
+
+restrict default kod nomodify notrap nopeer noquery
+restrict -6 default kod nomodify notrap nopeer noquery
+
+restrict 127.0.0.1
+restrict -6 ::1