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PObest way to setup a webhook to restart apache for a django server
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  1. PObest way to setup a webhook to restart apache for a django server
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    copied!<p>I first tried to use django and then django-webhooks to call a shell script that restarts the server. This didn't work, because the webpage hangs when the server restart is called, as django is reloaded. </p> <p>Then I used fastcgi and python alone to create a URL that calls the shell script. I know the python script works when I run it on the server, but not when it is run from the URL. </p> <p>Apache is setup as:</p> <pre><code>&lt;VirtualHost *:80&gt; ServerName webhooks.myserver.com DocumentRoot /home/ubuntu/web/common/www &lt;Directory /&gt; Options FollowSymLinks +ExecCGI AllowOverride All &lt;/Directory&gt; &lt;Files post.py&gt; SetHandler fastcgi-script &lt;/Files&gt; FastCgiServer /home/ubuntu/web/common/www/post.py -processes 2 -socket /tmp/fcgi.sock &lt;/VirtualHost&gt;</code></pre> <p>The python code called by apache is:</p> <pre><code>#!/usr/bin/python import fcgi, warnings, os, subprocess BASE_DIR = os.getcwd() def app(environ, start_response): cmd = "sudo %s/../deploy/postwebhook.sh &gt;&gt; /var/log/votizen/webhooks_run.log 2&gt;&gt; /var/log/votizen/webhooks_error.log &" % BASE_DIR warnings.warn("Running cmd=%s" % cmd) bufsize = -1 PIPE = subprocess.PIPE subprocess.Popen(cmd, shell=isinstance(cmd, basestring), bufsize=bufsize, stdin=PIPE, stdout=PIPE, stderr=PIPE, close_fds=True) warnings.warn("Post deployment webhook completed") start_response('200 OK', [('Content-Type', 'text/html')]) return('Hello World!') fcgi.WSGIServer(app, bindAddress = '/tmp/fcgi.sock').run()</code></pre> <p>And the shell script is:</p> <pre><code>#!/bin/bash # restart the apache server echo ' ' echo 'post webhooks started' date '+%H:%M:%S %d-%m-%y' apache2ctl -t; sudo /etc/init.d/apache2 stop; sudo /etc/init.d/apache2 start # todo: check if apache failed # copy media files for apps echo "moving SC to S3" python /home/ubuntu/web/corporate/manage.py sync_media_s3 -p sc date '+%H:%M:%S %d-%m-%y' echo 'post webhooks completed'</code></pre> <p>I'm not seeing any errors in the apache logs and the access log shows that the triggering URL is being called. However, I only see the python warnings the first time the URL is called after a restart and it never actually restarts the server.</p>
 

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