title: How to know which version of docker image is behind latest tag?
body: <p>I am working with two docker images of tensorflow (latest and latest-gpu tags):</p>
  
  <p><code>FROM tensorflow/tensorflow:latest-gpu
  </code></p>
  
  <p>and:</p>
  
  <p><code>FROM tensorflow/tensorflow:latest
  </code></p>
  
  <p>In order to not have surprises in the future, I would like to set the version of these two images.</p>
  
  <p>On docker hub, I can't find this information in <a href="https://hub.docker.com/r/tensorflow/tensorflow/tags/" rel="noreferrer">the tags pages</a>: for example, <code>latest</code> would correspond to the <code>1.8.0-gpu</code> tag.</p>
  
  <p>Do you know if and where I can find this information?</p>
  
  <p>Thank you,</p>
  
  <p>Alexandre</p>