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<div class="section" id="using-supervisor">
<h1>Using supervisor<a class="headerlink" href="#using-supervisor" title="Permalink to this headline"></a></h1>
<p>Supervisor is a very nice way to manage you Python processes. We won&#8217;t cover
the setup (which is just apt-get install supervisor or pip install supervisor
most of the time), but here is a quick overview on how to use it.</p>
<p>Create a configuration file named supervisor.ini:</p>
<div class="highlight-python"><pre>[unix_http_server]
file=/tmp/supervisor.sock;
[supervisorctl]
serverurl=unix:///tmp/supervisor.sock;
[rpcinterface:supervisor]
supervisor.rpcinterface_factory=supervisor.rpcinterface:make_main_rpcinterface
[supervisord]
logfile=/tmp/zerobin.log
logfile_maxbytes=50MB
logfile_backups=2
loglevel=trace
pidfile=/tmp/supervisord.pid
nodaemon=false
minfds=1024
minprocs=200
user=zerobin
[program:zerobin]
command=/path/to/zerobin/zerobin.py --port 80 --compressed-static
directory=/path/to/zerobin/
environment=PYTHONPATH='/path/to/zerobin/'
user=zerobin
autostart=true
autorestart=true</pre>
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<p>The 4 first entries are just boiler plate to get you started, you can copy
them verbatim.</p>
<p>The last one define one (you can have many) process supervisor should manage.</p>
<p>It means it will run the command:</p>
<div class="highlight-python"><pre>/path/to/zerobin/zerobin.py --port 80 --compressed-static</pre>
</div>
<p>In the directory, with the environnement and the user you defined.</p>
<p>This command will be ran as a daemon, in the background.</p>
<p><cite>autostart</cite> and <cite>autorestart</cite> just make it fire and forget: the site will always be
running, even it crashes temporarly or if you retart the machine.</p>
<p>The first time you run supervisor, pass it the configuration file:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">supervisord</span> <span class="o">-</span><span class="n">c</span> <span class="o">/</span><span class="n">path</span><span class="o">/</span><span class="n">to</span><span class="o">/</span><span class="n">supervisor</span><span class="o">.</span><span class="n">ini</span>
</pre></div>
</div>
<p>Then you can manage the process by running:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">supervisorctl</span> <span class="o">-</span><span class="n">c</span> <span class="o">/</span><span class="n">path</span><span class="o">/</span><span class="n">to</span><span class="o">/</span><span class="n">supervisor</span><span class="o">.</span><span class="n">ini</span>
</pre></div>
</div>
<p>It will start a shell from were you can start/stop/restart the service</p>
<p>You can read all errors that might occurs from /tmp/zerobin.log.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p>If you installed zerobin in a virtualenv, you may set the command
to run directly from it:</p>
<div class="last highlight-python"><pre>command=/path/to/virtualenv/bin/zerobin --port 80 --compressed-static</pre>
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