title: What is the default location for included files when building a docker image?
body: <pre><code>derrend@laptop ~/topdir $ docker version
  Client version: 1.7.1
  Client API version: 1.19
  Go version (client): go1.4.2
  Git commit (client): 786b29d
  OS/Arch (client): linux/amd64
  Server version: 1.7.1
  Server API version: 1.19
  Go version (server): go1.4.2
  Git commit (server): 786b29d
  OS/Arch (server): linux/amd64
  </code></pre>
  
  <hr>
  
  <pre><code>derrend@laptop ~/topdir $ pwd; ls *
  $HOME/topdir
  Dockerfile
  
  afolder:
  afile
  </code></pre>
  
  <p>As I understand it, when I execute a <code>docker build</code> the <code>afolder</code> and its contents will be included inside my docker image but where will they be placed if I do not designate a location in the <code>Dockerfile</code>?</p>