An NTP cloud-init for coreos

ntp.cloud-init

#cloud-config

coreos:
  units:
    - name: settimezone.service
      command: start
      content: |
        [Unit]
        Description=Set the timezone

        [Service]
        ExecStart=/usr/bin/timedatectl set-timezone UTC ; /usr/bin/timedatectl set-ntp true
        RemainAfterExit=yes
        Type=oneshot
write_files:
  - path: /etc/ntp.conf
    content: |
      # Common pool
      server 0.pool.ntp.org
      server 1.pool.ntp.org
      server 2.pool.ntp.org
      server 3.pool.ntp.org

      # - Allow only time queries, at a limited rate.
      # - Allow all local queries (IPv4, IPv6)
      restrict default nomodify nopeer noquery limited kod
      restrict 127.0.0.1
      restrict [::1]