Ansible Loop 在同一个循环中使用 with_items

Question

寻求帮助尝试遍历多个池，而某些池可能有超过 1 个主机。我尝试过 with_nested 和 with_subelements，但两者似乎都没有达到我的要求。

- name: Pool members
  bigip_pool_member:
    state: present
    pool: "{{ item.pool }}"
    partition: Common
    host: "{{ item.host }}"
    port: "{{ item.port }}"
    provider:
      server: bigip.domain.com
      user: admin
      password: admin
      validate_certs: no
  delegate_to: localhost
  with_items:
    - { pool: pool, host: [10.10.10.10, 10.10.10.11], port: 80 }
    - { pool: pool2, host: 10.10.10.10, port: 80 }

我相信主机字段一次只能取一个值，所以我需要循环遍历一个池的主机。输出将类似于

  bigip_pool_member:
    state: present
    pool: pool
    partition: Common
    host: 10.10.10.10
    port: 80

  bigip_pool_member:
    state: present
    pool: pool
    partition: Common
    host: 10.10.10.11
    port: 80

  bigip_pool_member:
    state: present
    pool: pool2
    partition: Common
    host: 10.10.10.10
    port: 80

Answer 1

循环 subelements 就是您要找的。例如，请参阅下面的剧本如何引用您需要的属性

- hosts: localhost
  vars:
    my_pools:
      - {pool: pool, host: [10.10.10.10, 10.10.10.11], port: 80}
      - {pool: pool2, host: [10.10.10.10], port: 80}
  tasks:
    - debug:
        msg: "pool:{{ item.0.pool }} port:{{ item.0.port }} host:{{ item.1 }}"
      with_subelements:
        - "{{ my_pools }}"
        - host

给予

    "msg": "pool:pool port:80 host:10.10.10.10"
    "msg": "pool:pool port:80 host:10.10.10.11"
    "msg": "pool:pool2 port:80 host:10.10.10.10"

备注

只需将对属性的引用放入您的代码中。
保持一致。属性 host 必须是一个列表，即使该列表只有一项。
使用loop代替with_subelements

      loop: "{{lookup('subelements', my_pools, 'host', {'skip_missing': True})}}"

以下是应该可以正常工作的最小更改的任务

- name: Pool members
  bigip_pool_member:
    state: present
    pool: "{{ item.0.pool }}"
    partition: Common
    host: "{{ item.1 }}"
    port: "{{ item.0.port }}"
    provider:
      server: bigip.domain.com
      user: admin
      password: admin
      validate_certs: no
  delegate_to: localhost
  with_subelements:
    - - {pool: pool, host: [10.10.10.10, 10.10.10.11], port: 80}
      - {pool: pool2, host: [10.10.10.10], port: 80}
    - host

^{（未测试）}

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