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Aanand Prasad 2014-08-08 15:22:13 -07:00
commit 3d115aa945
8 changed files with 18 additions and 19 deletions
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@ -6,7 +6,7 @@
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href='http://fonts.googleapis.com/css?family=Lilita+One|Lato:300,400,700' rel='stylesheet' type='text/css'>
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="css/fig.css?20140807310306634594032">
<link rel="stylesheet" type="text/css" href="css/fig.css?20140808310756672680036">
<link rel="canonical" href="http://www.fig.sh/rails.html">
</head>
<body>
@ -39,7 +39,7 @@ gem &#39;rails&#39;, &#39;4.0.2&#39;
</code></pre></div>
<p>Finally, <code>fig.yml</code> is where the magic happens. It describes what services our app comprises (a database and a web app), how to get each one&#39;s Docker image (the database just runs on a pre-made PostgreSQL image, and the web app is built from the current directory), and the configuration we need to link them together and expose the web app&#39;s port.</p>
<div class="highlight"><pre><code class="text language-text" data-lang="text">db:
image: orchardup/postgresql
image: postgres
ports:
- &quot;5432&quot;
web:
@ -69,18 +69,17 @@ Rakefile db test
<p>Now that we&#39;ve got a new <code>Gemfile</code>, we need to build the image again. (This, and changes to the Dockerfile itself, should be the only times you&#39;ll need to rebuild).</p>
<div class="highlight"><pre><code class="text language-text" data-lang="text">$ fig build
</code></pre></div>
<p>The app is now bootable, but we&#39;re not quite there yet. By default, Rails expects a database to be running on <code>localhost</code> - we need to point it at the <code>db</code> container instead. We also need to change the username and password to align with the defaults set by <code>orchardup/postgresql</code>.</p>
<p>The app is now bootable, but we&#39;re not quite there yet. By default, Rails expects a database to be running on <code>localhost</code> - we need to point it at the <code>db</code> container instead. We also need to change the database and username to align with the defaults set by the <code>postgres</code> image.</p>
<p>Open up your newly-generated <code>database.yml</code>. Replace its contents with the following:</p>
<div class="highlight"><pre><code class="text language-text" data-lang="text">development: &amp;default
adapter: postgresql
encoding: unicode
database: myapp_development
database: postgres
pool: 5
username: docker
password: docker
host: &lt;%= ENV.fetch(&#39;DB_1_PORT_5432_TCP_ADDR&#39;, &#39;localhost&#39;) %&gt;
port: &lt;%= ENV.fetch(&#39;DB_1_PORT_5432_TCP_PORT&#39;, &#39;5432&#39;) %&gt;
username: postgres
password:
host: db_1
test:
&lt;&lt;: *default