这是我的错，因为我试图用引号将组['foo'] Package 起来。我可以在playbook中设置一个变量，并通过执行以下操作来传递它：

- name: Big Tree Stitch Kafka
  hosts: kafka-bts
  vars:
    kafka_hosts: "kafka-bts"
  remote_user: centos
  become_user: root
  become: yes
  roles:
    - { role: kafka }

然后把这个放在我的金贾模板里。

% for url in groups[kafka-bts] %}
  {%- if url == ansible_fqdn or url in ansible_all_ipv4_addresses
     or ( kafka_id is defined and loop.index0 == kafka_id | int ) -%}
        broker.id={{loop.index0}}
    {% endif %}
{% endfor %}