metadata/service/client/init.yml

applications:
- ntp
parameters:
  _param:
    ntp_strata_host1: ntp.cesnet.cz
    ntp_strata_host2: pool.ntp.org
  ntp:
    client:
      enabled: true
      strata:
      - ${_param:ntp_strata_host1}
      - ${_param:ntp_strata_host2}