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