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8:Ta4c,<p><a href="https://github.com/nlf/dlite">DLite</a> をインストールしたので、そのときのメモ。</p>
<h2>DLiteとは</h2>
<p>OS XでDockerを使えるようにやつ。内部では<a href="https://github.com/mist64/xhyve">xhyve</a>を使っていて非常にコンパクト。</p>
<h2>作業環境</h2>
<ul>
<li>DLite 1.1.3</li>
<li>OS X El capitan 10.11.3</li>
</ul>
<h2>インストール手順</h2>
<pre><code>brew install dlite
sudo dlite install # CPUやディスクサイズなどのオプションは`-h`で確認可能
</code></pre>
<p>おしまい。</p>
<p>内部では以下が行われる:</p>
<ul>
<li><code>/etc/sudoers</code>に<code>dlite,nfs</code>コマンドをパスワードなしで<code>sudo</code>できるようにする設定を追加</li>
<li><code>~/Library/LaunchAgents/local.dlite.plist</code>に起動設定を配置</li>
<li><code>~/.dlite</code>に起動イメージをダウンロード</li>
</ul>
<h2>起動</h2>
<p>Tmux内で起動しようとするとエラーになるので、必ずTmux外でやること。</p>
<pre><code>dlite start
</code></pre>
<p>問題がなければ以下が加えられる:</p>
<ul>
<li><code>/var/run/docker.sock</code> にソケットファイルを作成</li>
<li><code>/etc/hosts</code> にdliteへの参照を追加 (デフォルトは <code>local.docker</code>。インストール時のオプションで変更可能)</li>
<li><code>/etc/exports</code> にDLite側のホストへのNFSマウントする設定を追加</li>
<li><code>~/Library/LaunchAgents/local.dlite.plist</code> をロードし、自動起動するように設定</li>
</ul>
<p>うまくいっていれば、<code>docker -H unix://var/run/docker.sock</code>(<code>export DOCKER_HOST=unix:///var/run/docker.sock</code>で指定も可)でdockerが使えるようになる。</p>
<p>もしうまくいかないようなら、<code>sudo dlite daemon</code>でコマンドラインから実行して原因を突き止める。とくに、NFS周りのコンフリクトが起きていないかを確認。</p>
<h2>まとめ</h2>
<p>ホストと仮想環境の間がシームレスにつながってcoLinuxっぽさがある。こういうすっきりしたツールは楽しい。</p>
<h2>追記</h2>
<p>2016-05-08: 現在はDocker for Macを利用している。osxfsでファイルシステムのイベントが連携できて便利。</p>
<h2>参考</h2>
<ul>
<li><a href="https://github.com/nlf/dlite">GitHub - nlf/dlite: The simplest way to use Docker on OS X</a></li>
<li><a href="https://blog.andyet.com/2016/01/25/easy-docker-on-osx/">Simplifying Docker on OS X</a></li>
</ul>
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