August 2016
Intermediate to advanced
384 pages
9h 20m
Japanese
Content preview from Docker
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100
7 章 イメージの配布
$ cd identidock
$ docker build -t "identidock:0.1" .
❶
$ docker tag "identidock:0.1" "amouat/identidock:0.1"
❷
❶
リポジトリ名を
identidock
に、タグを
0.1
を設定します。
❷
イメージに
amouat/identidock
という名前を関連づけます。この名前は、
Docker Hub
上の
amouat
というユーザー名を参照しています。
latest
タグに勘違いさせられないようにしましょう！ Docker は、タグが指定されていない場合
のデフォルトとして、
latest
というタグを使いますが、このタグにはそれ以上の特別な意味は何も
ありません。多くのリポジトリは、このタグを最新の安定版イメージのエイリアスとして使います
が、これは単なる慣例であり、強制力はまったくありません。
latest
というタグのついたイメージは、他のすべてのイメージと同様に、レジストリに新しい
バージョンがプッシュされても、自動的に更新されるわけではありません。更新されたバージョン
を取得するには、やはり明示的に
docker pull
しなければならないのです。
docker run
もしくは
docker pull
でタグを付けずにイメージ名を参照した場合、Docker は
latest
とタグづけられたイ
メージがあればそれを使い、なければエラーを返します。
latest ...
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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.