Code Review: Simple Docker Image Policy Scanner

<p>Have written a pretty simple (~250loc) Docker image scanner. Would really appreciate some constructive feedback / code review.</p> <p>Takes in a <code>docker inspect &lt;image&gt;</code> JSON as an input to stdin and a policy file.</p> <p>Code: <a href="https://pastebin.com/QzHqtLWc" rel="nofollow">https://pastebin.com/QzHqtLWc</a></p> <p>Sample Policy: <a href="https://pastebin.com/3ZFWqHJi" rel="nofollow">https://pastebin.com/3ZFWqHJi</a></p>