August 2016
Intermediate to advanced
384 pages
9h 20m
Japanese
Content preview from Docker
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336
13 章 セキュリティとコンテナに対する制限
境とが異なるという、そもそも
Docker
が解決しようとしてきた問題そのものが、再発することに
なってしまいます。
SELinux
が提供する追加の保護を使いたい、あるいはそれが必要だという場
合には、事態が改善されるまでの間、現在の状況を我慢せざるを得ないでしょう。
13.9.2
AppArmor
AppArmor
のメリットとデメリットは、
SELinux
よりもはるかにシンプルなことです。
AppArmor
は単純に動作し、ユーザーの邪魔をすることもありませんが、
SELinux
が提供するの
と同様の保護の粒度は提供できません。
AppArmor
は、プロセスにプロファイルを適用すること
によって、
Linux
のケーパビリティとファイルアクセスのレベルで、プロセスの持つ権限を制限し
ます。
Ubuntu
のホストを使っているなら、
AppArmor
はもう動作しているかも知れません。
sudo
apparmor_status
を実行してみれば、動作しているかを確認できます。
Docker
は、
AppArmor
の
プロファイルを、起動された各コンテナに自動的に適用します。デフォルトのプロファイルは、さ
まざまなシステムリソースにアクセスを試みる悪いコンテナに対し、一定レベルの保護を提供する
もので、通常は
/etc/apparmor.d/docker
にあります。本書の執筆時点では、
Docker
デーモンが
再起動時に上書きしてしまうので、デフォルトのプロファイルを変更することはできません。 ...
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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.