title: Deploy only changed files on AWS Elastic Beanstalk website
body: <p>I have successfully deployed my website on AWS Elastic Beanstalk. Now I want to change the code in one of my file.  </p>
  
  <p>If I do <code>eb deploy</code>, it will completely deploy a new version of my code which I don't want. I already have an updated DB on Elastic Beanstalk. If I deploy the whole code again, it will overwrite my DB file.</p>
  
  <p>How can I deploy the changed file only successfully?</p>