designate/server/backend/pdns.yml

parameters:
  designate:
    server:
      backend:
        pdns4:
          api_token: ${_param:designate_pdns_api_key}
          api_endpoint: ${_param:designate_pdns_api_endpoint}
  powerdns:
    server:
      enabled: true
      bind:
        address: ${_param:single_address}
        port: 53
      backend:
        engine: sqlite
        dbname: pdns.sqlite3
        dbpath: /var/lib/powerdns
      api:
        enabled: true
        key: ${_param:designate_pdns_api_key}
      webserver:
        enabled: true
        address: ${_param:single_address}
        port: ${_param:powerdns_webserver_port}
        password: ${_param:powerdns_webserver_password}