platform-as-a-service.html

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      <h1>Platform-as-a-service</h1>
      <p>A platform-as-a-service (PaaS) provides infrastructure and a software layer
on which a web application is deployed. Running your web application from
a PaaS removes the need to know as much about the underlying servers,
operating system, web server, and often the WSGI server.</p>
<p><em>Note</em>: If you are not interested in deploying to a PaaS you can move
ahead to the <a class="reference external" href="../wsgi-servers.html">WSGI servers</a> section.</p>
<p>The PaaS layer defines how the
application accesses resources such as computing time, files, and
external services. The PaaS provides a higher-level abstraction for working
with computing resources than deploying an application to a server or IaaS.</p>
<p>A PaaS makes deployment and operations easier because it forces the developer
to conform applications to the PaaS architecture.</p>
<p><a class="reference external" href="http://www.heroku.com/">Heroku</a>,
<a class="reference external" href="https://developers.google.com/appengine/">Google App Engine</a>,
<a class="reference external" href="https://gondor.io/">Gondor</a>, and
<a class="reference external" href="https://openshift.redhat.com/community/get-started/python">OpenShift</a> are
platform-as-services that support Python web applications. Each one requires
varying tradeoffs to deploy to their respective platforms.</p>
<img alt="Traditional LAMP server stack versus a Platform-as-a-Service stack" class="technical-diagram" src="theme/img/servers-versus-paas.png" />
<p>If you go the PaaS route, you can skip over the operating system and web
server sections because they are baked into PaaS offerings. PaaS offerings
generally start at the WSGI server layer.</p>
<div class="section" id="platform-as-a-service-resources">
<h2>Platform-as-a-service resources</h2>
<p><a class="reference external" href="http://appsembler.com/blog/paas-bakeoff-comparing-stackato-openshift-dotcloud-and-heroku-for-django-hosting-and-deployment/">PaaS bakeoff: Comparing Stackato, OpenShift, Dotcloud and Heroku for Django hosting and deployment</a> by <a class="reference external" href="https://twitter.com/natea">Nate Aune</a></p>
<p>DevOps Django and Heroku Series by <a class="reference external" href="https://twitter.com/rdegges">Randall Degges</a>:</p>
<ul class="simple">
<li><a class="reference external" href="http://www.rdegges.com/devops-django-part-1-goals/">Part One: Goals</a></li>
<li><a class="reference external" href="http://www.rdegges.com/devops-django-part-2-the-pain-of-deployment/">Part Two: The Pain of Deployment</a></li>
<li><a class="reference external" href="http://www.rdegges.com/devops-django-part-3-the-heroku-way/">Part Three: The Heroku Way</a></li>
<li><a class="reference external" href="http://rdegges.com/devops-django-part-4-choosing-heroku">Part Four: Choosing Heroku</a></li>
</ul>
<p><a class="reference external" href="http://www.deploydjango.com/">Deploying Django</a> by Randall Degges is
another great free resource about Heroku.</p>
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