Ansible Role: NTP

Install and configure NTP (chrony) on Linux.

Requirements

None.

Role Variables

Available variables are listed below along with default values (see defaults\main.yaml)

ntp_timezone: Europe/Madrid

Set timezone for the server

ntp_daemon: chrony
ntp_package: chrony

NTP package name and daemon. Default pakage for Ubuntu: chrony. ntp is deprecated

ntp_config_file: /etc/chrony/chrony.conf

Path to NTP service config file

ntp_servers:

NTP servers or pool to be used.

Format is a list of dictionaries with the following keys:

• server: host or pool
• type: (Optional) Defaults to server. Maps to a time source in the configuration file. Can be one of server, peer, pool.
• options: (Optional) List of options that depends on type, see Chrony documentation for details.

ntp_servers:
  - server: ntp.ubuntu.org
    type: pool
    options:
      - option: iburst
      - option: maxsources
        val: 4
  - server: 0.ubuntu.pool.ntp.org
    type: pool
    options:
      - option: iburst
      - option: maxsources
        val: 1
  - server: 1.ubuntu.pool.ntp.org
    type: pool
    options:
      - option: iburst
      - option: maxsources
        val: 1
  - server: 2.ubuntu.pool.ntp.org
    type: pool
    options:
      - option: iburst
      - option: maxsources
        val: 2

ntp_allow_hosts:[]

Optionally specify a host, subnet, or network from which to allow NTP # connections to a machine acting as NTP server

ntp_allow_hosts:
  - 10.0.0.0/24

Dependencies

None

Example Playbook

For NTP server

- hosts: ntp-server
  roles:
    - role: ricsanfre.ntp
      ntp_servers:
        - server: ntp.ubuntu.org
          type: pool
          options:
            - option: iburst
            - option: maxsources
          val: 4
        - server: 0.ubuntu.pool.ntp.org
          type: pool
          options:
            - option: iburst
            - option: maxsources
          val: 1
        - server: 1.ubuntu.pool.ntp.org
          type: pool
          options:
            - option: iburst
            - option: maxsources
          val: 1
        - server: 2.ubuntu.pool.ntp.org
          type: pool
          options:
            - option: iburst
            - option: maxsources
          val: 2
      ntp_allow_hosts:
        - 10.0.0.0/24

For NTP Client

- hosts: ntp-client
  roles:
    - role: ricsanfre.ntp
      ntp_servers:
        - server: 10.0.0.1
          type: server
      ntp_allow_hosts: []

Include vars/main.yaml

ntp_time_zone: Europe/Madrid

License

MIT/BSD

Author Information

Ricardo Sanchez (ricsanfre)