title: What does the DOCKER_TLS_VERIFY and DOCKER_CERT_PATH variable do?
body: <p>I am new to Docker, using boot2docker on Windows 7.<br>
  While I was trying to configure Docker build through spotify maven plugin, I was asked to set below env variables :</p>
  
  <pre><code>DOCKER_HOST
  DOCKER_CERT_PATH
  DOCKER_TLS_VERIFY
  </code></pre>
  
  <p>Configuration was successful but am not sure 
  What does the  <code>DOCKER_TLS_VERIFY</code> and <code>DOCKER_CERT_PATH</code> variables do ?  </p>