August 2016
Intermediate to advanced
384 pages
9h 20m
Japanese
Content preview from Docker
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143
9.2 プロキシの利用
❶
この処理には多少の時間がかかります。これは、まず必要なイメージをダウンロードしてビル
ドしなければならないためです。
❷
docker-machine ip
コマンドを使えば、
Docker
のホストがどこで動作しているのかがわかり
ます。
これで、クラウド上で
identidock
が動作し、誰でもアクセスできるようになっています
†
。これ
ほど素早く何かを立ち上げることができるのは素晴らしいことですが、適切ではないこともいくつ
かあります。特に、このアプリケーションは
5000
番ポートで開発用の
Python
の
Web
サーバーを
動作させています。実稼働用のバージョンに切り替えるべきではありますが、リバースプロキシか
ロードバランサをアプリケーションの前に置いて、外部の
IP
アドレスを変えずに
identicodk
のイ
ンフラストラクチャを変更できるようにするのも良いでしょう。
nginx
はロードバランシングをサ
ポートしているので、
identidock
のインスタンスを複数立ち上げ、トラフィックを分配すること
も簡単にできます。
本書を通じて、identidock サービスが動作していることの確認は、curl で行っています。とはい
え、単純にフロントページを取得するだけのテストでは、良いテストだとは言えません。このテス
トで確認できるのは、identidock のコンテナが動作しているということだけです。identicon を
取得すれば、ident
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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.