April 2016
Intermediate to advanced
364 pages
7h 54m
Japanese
Content preview from 初めてのAnsible
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222
12 章 Amazon EC2
12.2
クレデンシャルの指定
Amazon EC2
に対してリクエストを発行するときには、クレデンシャルを指定しなければなり
ません。
AWS
マネージメントコンソールを使用したことがあるなら、ログインの際にユーザー
名とパスワードを使ったはずです。とはいえ、
Ansible
で
EC2
とやりとりをする部分は、すべて
EC2
の
API
を使います。そしてこの
API
がクレデンシャルとして使っているのは、ユーザー名と
パスワードではありません。その代わりに使われるのは、アクセスキー
ID
とシークレットアクセ
スキーという
2
つの文字列です。
通常、これらの文字列は以下のような文字列です。
•
サンプルの
EC2
のアクセスキー
ID
：
AKIAIOSFODNN7EXAMPLE
•
サンプルの
EC2
のシークレットアクセスキー：
wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLE
KEY
EC2
に関連するモジュールを呼び出す際には、これらの文字列を引数として渡します。動的イ
ンベントリプラグインでは、このクレデンシャルを
ec2.ini
ファイル（次のセクションで議論し
ます）で指定できます。とはいえ、
EC2
のモジュール群や動的インベントリプラグインは、い
ずれもこれらのクレデンシャルを環境変数として指定できます。また、コントロールマシン自体
が
Amazon EC2
のインスタンスなら、付録
C
で取り上げる
identity and access management
（
IAM
）ロールと呼ばれるものを使うこともできます。 ...
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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.