title: How to set docker's NO_PROXY with wildcard
body: <p>As mentioned in the official docker docs <a href="https://docs.docker.com/config/daemon/systemd/#configure-where-the-docker-daemon-listens-for-connections" rel="noreferrer">here</a>, proxy setting for docker can be assigned here /etc/systemd/system/docker.service.d/https-proxy.conf, like:</p>
  
  <pre><code>[Service]    
  Environment="HTTPS_PROXY=https://proxy.example.com:443/" "NO_PROXY=localhost,127.0.0.1,docker-registry.somecorporation.com"
  </code></pre>
  
  <p>But, the docker's downloading relates a lot of url redirecting. So I hardly name them one by one in the setting here.</p>
  
  <p>So my question is that is there any methods to achieve wildcard, such as *.docker.io. </p>
  
  <p>Thanks,
  Cross</p>