title: Docker - where are the src files for ADD and COPY?
body: <p>I am trying to learn Docker from other DockerFiles and and set up a <strong>customised</strong> development environment for my projects.</p>
  
  <p>But from other DockerFiles, I don't understand - where are those <code>src</code> files coming from for <code>ADD</code> and <code>COPY</code>? How do I create them myself? What code should I put inside them?</p>
  
  <p>For instance, <a href="https://hub.docker.com/r/fauria/lamp/~/dockerfile/" rel="nofollow noreferrer">fauria/lamp</a>:</p>
  
  <pre><code>COPY run-lamp.sh /usr/sbin/
  </code></pre>
  
  <p>Where can I get this file or create it? What are the lines inside that file?</p>
  
  <p>again, <a href="https://hub.docker.com/r/nickistre/ubuntu-lamp/~/dockerfile/" rel="nofollow noreferrer">nickistre/ubuntu-lamp</a>:</p>
  
  <pre><code>ADD supervisord.conf /etc/
  </code></pre>
  
  <p>Where can I get a copy of it?</p>
  
  <p>Another one, <a href="https://hub.docker.com/r/linuxconfig/lamp/~/dockerfile/" rel="nofollow noreferrer">linuxconfig/lamp</a>:</p>
  
  <pre><code># Include supervisor configuration
  ADD supervisor-lamp.conf /etc/supervisor/conf.d/
  ADD supervisord.conf /etc/supervisor/
  </code></pre>
  
  <p><code>supervisor-lamp.conf</code> and <code>supervisord.conf</code>?</p>
  
  <p>Any ideas?</p>