title: Install debian package using cloud-init
body: <p>I'm trying to install <code>netcat</code> using <code>cloud-init</code>.</p>
  
  <p>As soon as I SSH'd to my vm, with all my keys configured correctly via <code>cloud-init</code> (meaning, it's executing), I try to run <code>netcat</code> and it doesn't work;</p>
  
  <p>I'm using Container-Optimized OS (cos) as they refer to use it for <code>cloud-init</code>, and as of research I found cos is based on ChromiumOS kernel;</p>
  
  <p>All I add to my cloud-init file is</p>
  
  <pre><code>packages:
   - nano
   - netcat
  </code></pre>
  
  <p>And none of them work.</p>
  
  <p>Is there anything I'm missing to be able to add these packages?</p>