title: How to hide nginx.conf authorization credentials?
body: <p>To explain quickly, I have an nginx server running within Docker, acting as a reverse proxy for my Flask web app. A part of my configuration is using <code>proxy_set_header Authorization</code> to pass some credentials into the <code>proxy_pass</code> website.</p>
  <p>This all works fine - but, I want to push all this stuff to GitHub, and of course don't want want my creds, encoded or not, to show up.</p>
  <p>What is my best option here? All I can think of is having something similar to dotenv, but for nginx.conf files rather than .py files.</p>
  <p>Does anyone have any ideas on what I could to in order to pass my creds in <em>but</em> without hardcoding them explicitly in the config?</p>