title: Supervisord: How to use the hostname in a startup command
body: <p>is it possible to somehow use the local hostname in a supervisord startup script?
  I need it to pass the jmx host to a java-Program.
  Example:</p>
  
  <pre><code>command=HOSTNAME=foo.bar /usr/local/rvm/bin/jruby-1.7.1 script/trinidad.rb --threadsafe -f config/trinidad_user_production.rb
  </code></pre>
  
  <p>I see no easy option so far.</p>
  
  <p>Best,</p>
  
  <p>Tobias</p>