April 2016
Intermediate to advanced
364 pages
7h 54m
Japanese
Content preview from 初めてのAnsible
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160
8 章 ロール：プレイブックのスケールアップ
roles/database/vars/main.yml
オーバーライドすべきではない変数群
roles/database/defaults/main.yml
オーバーライドできるデフォルトの変数群
roles/database/meta/main.yml
ロールに関する依存対象の情報
それぞれ、個々のファイルはオプションです。ロールがハンドラを持たないのであれば、空の
handlers/main.yml
ファイルを用意するような必要はありません。
Ansible
がロールを探す場所
Anaible は、playbook が置かれているディレクトリ内の
roles
ディレクトリ内でロールを探します。ま
た、システム全体にわたるロールは、
/etc/ansible/roles
から探します。システム全体にわたるロールの
場所は、例 8-1 のように、
ansible.cfg
ファイルの
defaults
セクションの
roles_path
を設定すれば、カ
スタマイズできます。
例
8-1
ansible.cfg
でデフォルトのロールのパスをオーバーライドする
[defaults]
roles_path = ~/ansible_roles
付録 B で説明する通り、この設定は、環境変数の
ANSIBLE_ROLES_PATH
を設定することでもオーバーライ
ドできます。
8.2
サンプル：データベースと
Mezzanine
のロール
それでは、
Mezzanine
の
playbook
を
Ansible
のロールを使って実装してみましょう ...
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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.