在ansible中循环facter_disks

Question

我正在尝试遍历facter_disks以查找特定大小的磁盘。在下面的代码中，想要获得大小为30的磁盘sdb。非常感谢您的任何帮助。

---
- name: sample Playbook
  hosts: localhost
  gather_facts: false
  become: yes
  vars:
    disks:
      - sda:
          model: SYMMETRIX
          size: 55.00 GiB
          size_bytes: 59057111040
          vendor: EMC
        sdb:
          model: SYMMETRIX
          size: 35.00 GiB
          size_bytes: 37581619200
          vendor: EMC
        sdc:
          model: SYMMETRIX
          size: 20.00 GiB
          size_bytes: 21475491840
          vendor: EMC


  tasks:

    - debug:
        msg:
#         - "{{ disks[0]['sda']['size'] }}"
          - "{{ item['sda']['size'] }}"
      with_items: " {{disks}} "

Answer 1

disks var是一个列表，您需要在sda、sdb、sdc之前使用"-“。在这种情况下，如果您想要使用磁盘作为磁盘列表，那么您可以修改和设置名称属性，如下所示

---
- name: sample Playbook
  hosts: localhost
  gather_facts: false
  become: yes
  vars:
    disks:
    - name: sda
      model: SYMMETRIX
      size: 55.00 GiB
      size_bytes: 59057111040
      vendor: EMC
    - name: sdb
      model: SYMMETRIX
      size: 35.00 GiB
      size_bytes: 37581619200
      vendor: EMC
    - name: sdc
      model: SYMMETRIX
      size: 20.00 GiB
      size_bytes: 21475491840
      vendor: EMC

  tasks:
    - debug:
        msg:
        - "{{ item.name }}"
        - "{{ item.model }}"
        - "{{ item.size }}"
        - "{{ item.size_bytes }}"
        - "{{ item.vendor }}"
      with_items: " {{disks}}"
      when: item.size == "35.00 GiB"