如何将完整主机名存储为 ansible 中的变量?

问题描述 投票:0回答:2

我需要使用两台主机中的一台作为变量。我确实有

inventory_hostname_short
,但我需要一个完整的主机作为变量。目前,为了进行测试,我正在使用硬编码值。我的剧本将同时在两台主机上运行,那么我如何识别完整的主机名并将其存储为变量?

host_1_full = 123.abc.de.com

host_2_full = 345.abc.de.com

以上都是主持人,我确实有

---
- name: Ansible Script 
  hosts: all
  
  vars:
    host1_short : '123'
    host2_short : '345'

  tasks:
    - name: set host
      set_fact:
        host1_full: "{{inventory_hostname}}"
      when: inventory_hostname_short == host1_short

    - name: print info
      debug:
        msg: "host - {{host1_full}}"

    - name: block1
      block:
      - name:running PS1 file
        win_shell: "script.ps1"
        register: host1_output
      
      when: inventory_hostname_short == host1_short  
      

    - name: block2
      block:
      
      - name: set host
        set_fact:
          IN_PARA: "{{ hostvars[host1_full]['host1_output']['stdout']}}"

      - name:running PS1 file
        win_shell: "main.ps1 -paramater {{ IN_PARA }}"
        register: output

   
      when: inventory_hostname_short == host2_short

从不同主机访问任何文件需要完整的主机名。我怎样才能获得完整的主机名?

ansible
2个回答
3
投票

鉴于以下情况

inventories/test_inventory.yml

---
all:
  hosts:
    123.abc.de.com:
    345.abc.de.com:

ansible 将自动在

inventory_hostname
中提供所需的结果,如以下
test.yml
剧本

所示
---
- name: Print long and short inventory name
  hosts: all
  gather_facts: false

  tasks:
    - name: print info
      ansible.builtin.debug:
        msg: "Host full name is {{ inventory_hostname }}. Short name is {{ inventory_hostname_short }}"

给出:

$ ansible-playbook -i inventories/test_inventory.yml test.yml 

PLAY [print long and short inventory name] *********************************************************************************************************************************************************************************************

TASK [print info] **********************************************************************************************************************************************************************************************************************
ok: [345.abc.de.com] => {
    "msg": "Host full name is 345.abc.de.com. Short name is 345"
}
ok: [123.abc.de.com] => {
    "msg": "Host full name is 123.abc.de.com. Short name is 123"
}

PLAY RECAP *****************************************************************************************************************************************************************************************************************************
123.abc.de.com             : ok=1    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0   
345.abc.de.com             : ok=1    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

0
投票

如前所述,

ansible_hostname
ansible_fqdn
是有关库存中主机的自动事实。但是,您的要求有点独特。因此,我们可能必须应用一种独特的方法来实现这一目标。像这样的怎么样?

考虑如下示例库存:

---
all:
  hosts:
    192.168.1.101:      # 123.abc.de.com
    192.168.1.102:      # 345.abc.de.com

我们可以玩这样的游戏:

- hosts: all
  vars:
    host1_short: 123
    host2_short: 345

  tasks:
  - command: "hostname -f"
    register: result

  - block:
    - set_fact:
        host1_full: "{{ result.stdout }}"
    - debug:
        msg: "Host1 fullname: {{ host1_full }}"
    when: host1_short in result.stdout
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