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Ansible: vars_files を使用した loop処理

Last updated at Posted at 2020-04-07

Ansible でのループ処理を変数ファイルから読みこむ方法を確認しました。
(ループ処理(loopモジュール) と変数読み込み(vars_files)両方の内容がなかなか見つけられなかったので...)

ループ処理は以前は with_items をよく使用していたと思いますが、 loop を使うように記載がありました。(2020/4/7時点)

Ansibleマニュアル: loop
https://docs.ansible.com/ansible/latest/user_guide/playbooks_loops.html#with-items
抜粋: "with_items is replaced by loop and the flatten filter."


環境

Ansible サーバー

  • CentOS 7.6.1810 (Core)
    -- Ansible 2.8.2
    -- Python 2.7.5

・Ansible のクライアントサーバー

  • AIX 7.2TL3SP3
    -- Python 2.7.15

***AIX でもAnsibleのクライアントになれます! ***


playbooks

test.yml (処理実行のplaybook)

---
- hosts: all
  become: true
  vars_files:
    - variables.yml        #<- 指定の変数ファイル
    
  tasks:
  - name: variable1 test
    shell: |-
       set -x
       echo {{ item }}
    loop: "{{ variable1|flatten(levels=1) }}"

  - name: variable2 test
    shell: |-
       set -x
       echo {{ item }}
    loop: "{{ variable2|flatten(levels=1) }}"

・variables.yml (読み込み用変数ファイル)

# variables
variable1:
    - A
    - B
variable2:
    - C
    - D


実行ログ

test.yml 実行ログ

$ sudo ansible-playbook -i tmp/ip -u root --private-key=id_rsa '--ssh-common-args=-o StrictHostKeyChecking=no' -e ansible_python_interpreter=auto_silent test.yml

PLAY [all] ***********************************************************************************************************************

TASK [Gathering Facts] ***********************************************************************************************************
Tuesday 07 April 2020  03:56:53 -0500 (0:00:00.051)       0:00:00.051 *********
ok: [192.168.0.xxx]

TASK [variable1 test] ************************************************************************************************************
Tuesday 07 April 2020  03:59:30 -0500 (0:02:36.992)       0:02:37.043 *********
changed: [192.168.0.xxx] => (item=A)
changed: [192.168.0.xxx] => (item=B)

TASK [variable2 test] ************************************************************************************************************
Tuesday 07 April 2020  03:59:31 -0500 (0:00:01.385)       0:02:38.429 *********
changed: [192.168.0.xxx] => (item=C)
changed: [192.168.0.xxx] => (item=D)

PLAY RECAP ***********************************************************************************************************************
192.168.0.xxx              : ok=3    changed=2    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

Tuesday 07 April 2020  03:59:32 -0500 (0:00:01.217)       0:02:39.647 *********
===============================================================================
Gathering Facts --------------------------------------------------------------------------------------------------------- 156.99s
variable1 test ------------------------------------------------------------------------------------------------------------ 1.39s
variable2 test ------------------------------------------------------------------------------------------------------------ 1.22s

以上です。

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