title: How do I add a user when I'm using Alpine as a base image?
body: <p>I'm using <code>alpine</code> (or an image that is based on Alpine) as the base image in my Dockerfile. Which instructions do I need to add to create a user? </p>
  
  <p>Eventually I'll use this user to run the application I'll place into the container so that the root user does not.</p>