April 2016
Intermediate to advanced
364 pages
7h 54m
Japanese
Content preview from 初めてのAnsible
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305
付録
C
EC2
クレデンシャル のための
IAM
ロールの利用
Ansible
を
VPC
内で実行するなら、
Amazon
の
Identity and Access Management
（
IAM
）ロー
ルを活かせば、
EC2
のインスタンスに、クレデンシャルを環境変数として設定して渡してやる必
要さえなくすことができます。
Amazon
の
IAM
ロールを使うと、ユーザーとグループを定義し、それらのユーザー及びグルー
プが、
EC2
でできることを制御できます（例えば、実行中のインスタンスの情報の収集、インス
タンスの生成、イメージの生成など）。また、
IAM
ロールを動作中のインスタンスに割り当てて、
実質的に「このインスタンスには他のインスタンスを起動することを許可する」と宣言できます。
IAM
ロールをサポートしているクライアントプログラムを使って
EC2
に対してリクエストを発
行する場合に、インスタンスが
IAM
ロールによってパーミッションを得ているなら、そのクライ
アントはクレデンシャルを
EC2
のインスタンスメタデータサービス（
http://amzn.to/1Cu0fTl
）
からフェッチし、それらを使って
EC2
のサービスのエンドポイントに対してリクエストを発行し
ます。
IAM
ロールを生成するには、
Amazon Web Services
（
AWS
）のマネージメントコンソールを使
うか、コマンドラインで
AWS Command Line Interface
ツールもしくは
AWS CLI
（
http://aws.
amazon.com/cli/ ...
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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.