April 2016
Intermediate to advanced
364 pages
7h 54m
Japanese
Content preview from 初めてのAnsible
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204
10 章 カスタムモジュール
例
10-5
引数を文字列として渡す
module = AnsibleModule(...)
...
module.run_command('/usr/local/bin/myprog -i myarg')
10.7.8
チェックモード（
DryRun
）
Ansible
は、チェックモードと呼ばれるモードをサポートしています。これは、
ansible-
playbook
に
-C
もしくは
--check
フラグを渡すと有効になります。これは、他の多くのツールでサ
ポートされている
dry run
モードに似たモードです。
チェックモードで
playbook
を実行する場合、
Ansible
は実行時にホストの状態を一切変化させ
ません。その代わりに、
Ansible
は単純に各タスクがホストを変化させるのか、変化をさせずに成
功を返すのか、あるいはエラーを返すのか、といったことを報告します。
モジュールは、チェックモードをサポートするように明示的に設定されなければなりません。独
自のモジュールを書くのであれば、そのモジュールが Ansible の世界の良い住人となれるよう、
チェックモードをサポートすることをお勧めします。
Ansible
に対してモジュールがチェックモードをサポートしていることを知らせるためには、例
10-6
のように初期化メソッドの
AnsibleModule
で
supports_check_mode
を
true
に設定してくださ
い。
例
10-6
モジュールがチェックモードをサポートしていることを ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.