无法循环的shell命令列表和将变量传递给命令？

Question

我试图弄清楚如何循环shell命令，但是这些命令包含变量。我使用这个链接作为参考https://github.com/VerosK/ansible-iscsi-target/blob/master/tasks/implementations/lio.yml

代码是通过每个磁盘的命令列表循环的。

以下是工作代码：

---
-
  become: true
  gather_facts: false
  hosts: isci_ansible_centos01
  vars:
    iscsi_target_base: iqn.2017-11.local.centos7
    iscsi_targets:
      - wwn: iqn.2019-8.local.centos7
        disks:
        - name: 'iscsidisk1'
          device: '/dev/sdb'
          vgname: 'vg.iscsi1'
          lvname: 'lv.iscsi1'
          mode: 'block'
        - name: iscsidisk2
          device: /dev/sdc
          vgname: vg.iscsi2
          lvname: lv.iscsi2
          mode: block
  tasks:

    #targetcli '/backstores/block' create scsids1 /dev/vg-iscsi/lv-iscsi
    - name: Create backstore
      shell: targetcli '/backstores/{{ item.1.mode }}' create {{ item.1.name }} /dev/{{ item.1.vgname }}/{{ item.1.lvname }}
      with_subelements:
        - "{{ iscsi_targets }}"
        - disks
      ignore_errors: yes

    #targetcli '/iscsi' create iqn.2017-11.local.centos7:disk1
    - name: Create target
      shell: targetcli '/iscsi' create {{ iscsi_target_base }}:{{item.1.name}}
      with_subelements:
        - "{{ iscsi_targets }}"
        - disks
      ignore_errors: yes

    # targetcli '/iscsi/iqn.2017-11.local.centos7:disk1/tpg1/acls' create iqn.2017-11.local.centos7:node1
    - name: Create nodes
      shell: targetcli '/iscsi/{{ iscsi_target_base }}:{{item.1.name}}/tpg1/acls' create {{ iscsi_target_base }}:node{{item.1.name}}
      with_subelements:
        - "{{ iscsi_targets }}"
        - disks

    # targetcli '/iscsi/iqn.2017-11.local.centos7:disk1/tpg1' set attribute authentication=0 demo_mode_write_protect=0
    - name: Set Authentication
      shell: targetcli '/iscsi/{{ iscsi_target_base }}:{{item.1.name}}/tpg1' set attribute authentication=0 demo_mode_write_protect=0
      with_subelements:
        - "{{ iscsi_targets }}"
        - disks

    # targetcli '/iscsi/iqn.2017-11.local.centos7:disk1/tpg1' set attribute generate_node_acls=1
    - name: Set geenerate_node_acls
      shell: targetcli '/iscsi/{{ iscsi_target_base }}:{{item.1.name}}/tpg1' set attribute generate_node_acls=1
      with_subelements:
        - "{{ iscsi_targets }}"
        - disks

    # targetcli '/iscsi/iqn.2017-11.local.centos7:disk1/tpg1/luns' create /backstores/block/scsids
    - name: Create backing_store
      shell: targetcli '/iscsi/{{ iscsi_target_base }}:{{item.1.name}}/tpg1/luns' create /backstores/block/{{ item.1.name }}
      with_subelements:
        - "{{ iscsi_targets }}"
        - disks

下面是我想要做的事情，将其转化为:但我认为变量项正在变得混乱。这个方法支持吗？我只想知道作为将来的参考。

- name: Configure ISCSI using SHELL LOOP
  shell: {{ item }}
  loop:
    - targetcli '/backstores/{{ item.1.mode }}' create {{ item.1.name }} /dev/{{ item.1.vgname }}/{{ item.1.lvname }}
    - targetcli '/iscsi' create {{ iscsi_target_base }}:{{item.1.name}}
    - targetcli '/iscsi/{{ iscsi_target_base }}:{{item.1.name}}/tpg1/acls' create {{ iscsi_target_base }}:node{{item.1.name}}
    - targetcli '/iscsi/{{ iscsi_target_base }}:{{item.1.name}}/tpg1' set attribute authentication=0 demo_mode_write_protect=0
    - targetcli '/iscsi/{{ iscsi_target_base }}:{{item.1.name}}/tpg1' set attribute generate_node_acls=1
    - targetcli '/iscsi/{{ iscsi_target_base }}:{{item.1.name}}/tpg1/luns' create /backstores/block/{{ item.1.name }}
  with_subelements:
     - "{{ iscsi_targets }}"
     - disks

顺便说一句，我不得不使用with_subelements来访问iscsi_targets中的项目。出于某种原因，它不允许我使用with_items和使用{item.device}访问

Answer 1

    - shell: "{{ item }}"
      loop:
        - "AAA {{ item.1.name }} {{ item.1.device }}"
        - "BBB {{ item.1.name }} {{ item.1.device }}"
      with_subelements:
         - "{{ targets }}"
         - disks

问：“支持吗？”

答:没有。不可能将2 环放在一个任务中。

相反，可以使用命令创建一个文件。

shell> cat commands.yml
- debug:
    msg: "{{ cmd_item }}"
  loop:
    - "AAA {{ item.1.name }} {{ item.1.device }}"
    - "BBB {{ item.1.name }} {{ item.1.device }}"
  loop_control:
    loop_var: cmd_item

并迭代(循环) include_tasks。下面这出戏

- hosts: localhost
  vars:
    targets:
      - wwn: 2019.centos7
        disks:
        - name: 'disk1'
          device: '/dev/sdb'
        - name: 'disk2'
          device: '/dev/sdc'
  tasks:
    - include_tasks: commands.yml
      loop: "{{ targets|subelements('disks') }}"

给

    "msg": "AAA disk1 /dev/sdb"
    "msg": "BBB disk1 /dev/sdb"
    "msg": "AAA disk2 /dev/sdc"
    "msg": "BBB disk2 /dev/sdc"