如何 运行 ansible task based vaule count condition

Question

我正在尝试根据键中的元素数量创建一个任务。

我的输入将像下面一样 json 输入

"srcaddr": "IP_192.168.10.10, IP_192.168.10.12"

或 json

的数组

"srcaddr": ['IP_192.168.10.10', 'IP_192.168.10.12']

  - name: ADD IPv4 IP ADDRESS GROUP
    chkr_fwobj_address:
      ipv4: "group"
      group_name: "ansibleIPv4Group1"
      group_members: "{{ srcaddr }}"
      adom: "{{ adom }}"
    when: "{{ srcaddr |length > 1}}"

我想在元素的个数大于一个时执行上面的任务，超过一个任务将创建一个组并将成员添加到组中。如果我们只有一个元素，那么组创建任务将被忽略

Answer 1

when 条件不应展开。正确的语法是

when: srcaddr|length > 1

下图

- hosts: localhost
  vars:
    srcaddr1: ['IP_192.168.10.10']
    srcaddr2: ['IP_192.168.10.10', 'IP_192.168.10.12']
  tasks:
    - debug:
        msg: There is more then 1 address in the list srcaddr1.
      when: srcaddr1|length > 1
    - debug:
        msg: There is more then 1 address in the list srcaddr2.
      when: srcaddr2|length > 1

给出：

PLAY [localhost] *******************************************************

TASK [debug] ***********************************************************
skipping: [localhost]

TASK [debug] **********************************************************
ok: [localhost] => {
    "msg": "There is more than 1 address in the list srcaddr2."
}

PLAY RECAP *************************************************************
localhost                  : ok=1    changed=0    unreachable=0    failed=0

注意：srcaddr: 'IP_192.168.10.10'的长度是字符串的长度。 srcaddr: [ 'IP_192.168.10.10' ] 的长度是 list.

的长度