metadata/service/server/single.yml

applications:
- etcd
classes:
- service.etcd.support
parameters:
  etcd:
    server:
      enabled: true
      bind:
        host: ${_param:host_address}
      token: ${_param:etcd_initial_token}
      members:
        - host: ${_param:node_address}
          name: ${_param:node_hostname}
          port: ${_param:node_port}