April 2016
Intermediate to advanced
364 pages
7h 54m
Japanese
Content preview from 初めてのAnsible
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39
2.7 もう少しスマートに : TLS のサポート
TASK: [install nginx] *********************************************************
changed: [testserver]
一方で、
enable configuration
の状態は
ok
で、これはターミナル上では緑色で表示されます。
TASK: [enable configuration] **************************************************
ok: [testserver]
Ansible
のタスクが実行されれば、ホストの状態が何らかの方法で変更される可能性がありま
す。
Ansible
のモジュールは、アクションを行う前に、まずホストの状態をチェックして、変更の
必要の有無を調べます。ホストの状態がモジュールの引数にマッチしていれば、
Ansible
はそのホ
ストでは何も行わず、
ok
を返します。
一方で、ホストの状態と引数に差異があった場合は、
Ansible
はホストの状態を変更し、
changed
を返します。
先ほどの出力例では、
install nginx
タスクは
changed
を返しています。これは、
playbook
の
実行前にはホストに
nginx
パッケージがインストールされていなかったということです。
enable
configuration
タスクは変更を行っていません。これは、すでにサーバー上に設定ファイルがあ
り、その内容がコピーしたファイルと同じだったということです ...
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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.