---
- hosts: zookeeper
  user: root
  vars_files:
    - "vars/zk.yml"
  vars:
    install_zk: true      # install zookeeper
    config_zk: true       # config zookeeper
    start_service: true   # auto start zookeeper service
    add_user: true        # add zookeeper user 
    open_firewall: true   # open firewall
  roles:
    - user                # add user
    - zookeeper           # zookeeper