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django/docs/howto/static-files/deployment.txt
Tobias Kunze 4a954cfd11 Fixed #30573 -- Rephrased documentation to avoid words that minimise the involved difficulty.
This patch does not remove all occurrences of the words in question.
Rather, I went through all of the occurrences of the words listed
below, and judged if they a) suggested the reader had some kind of
knowledge/experience, and b) if they added anything of value (including
tone of voice, etc). I left most of the words alone. I looked at the
following words:

- simply/simple
- easy/easier/easiest
- obvious
- just
- merely
- straightforward
- ridiculous

Thanks to Carlton Gibson for guidance on how to approach this issue, and
to Tim Bell for providing the idea. But the enormous lion's share of
thanks go to Adam Johnson for his patient and helpful review.
2019-09-06 13:27:46 +02:00

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======================
Deploying static files
======================
.. seealso::
For an introduction to the use of :mod:`django.contrib.staticfiles`, see
:doc:`/howto/static-files/index`.
.. _staticfiles-production:
Serving static files in production
==================================
The basic outline of putting static files into production consists of two
steps: run the :djadmin:`collectstatic` command when static files change, then
arrange for the collected static files directory (:setting:`STATIC_ROOT`) to be
moved to the static file server and served. Depending on
:setting:`STATICFILES_STORAGE`, files may need to be moved to a new location
manually or the :func:`post_process
<django.contrib.staticfiles.storage.StaticFilesStorage.post_process>` method of
the ``Storage`` class might take care of that.
Of course, as with all deployment tasks, the devil's in the details. Every
production setup will be a bit different, so you'll need to adapt the basic
outline to fit your needs. Below are a few common patterns that might help.
Serving the site and your static files from the same server
-----------------------------------------------------------
If you want to serve your static files from the same server that's already
serving your site, the process may look something like:
* Push your code up to the deployment server.
* On the server, run :djadmin:`collectstatic` to copy all the static files
into :setting:`STATIC_ROOT`.
* Configure your web server to serve the files in :setting:`STATIC_ROOT`
under the URL :setting:`STATIC_URL`. For example, here's
:ref:`how to do this with Apache and mod_wsgi <serving-files>`.
You'll probably want to automate this process, especially if you've got
multiple web servers.
Serving static files from a dedicated server
--------------------------------------------
Most larger Django sites use a separate Web server -- i.e., one that's not also
running Django -- for serving static files. This server often runs a different
type of web server -- faster but less full-featured. Some common choices are:
* Nginx_
* A stripped-down version of Apache_
.. _Nginx: https://nginx.org/en/
.. _Apache: https://httpd.apache.org/
Configuring these servers is out of scope of this document; check each
server's respective documentation for instructions.
Since your static file server won't be running Django, you'll need to modify
the deployment strategy to look something like:
* When your static files change, run :djadmin:`collectstatic` locally.
* Push your local :setting:`STATIC_ROOT` up to the static file server into the
directory that's being served. `rsync <https://rsync.samba.org/>`_ is a
common choice for this step since it only needs to transfer the bits of
static files that have changed.
.. _staticfiles-from-cdn:
Serving static files from a cloud service or CDN
------------------------------------------------
Another common tactic is to serve static files from a cloud storage provider
like Amazon's S3 and/or a CDN (content delivery network). This lets you
ignore the problems of serving static files and can often make for
faster-loading Web pages (especially when using a CDN).
When using these services, the basic workflow would look a bit like the above,
except that instead of using ``rsync`` to transfer your static files to the
server you'd need to transfer the static files to the storage provider or CDN.
There's any number of ways you might do this, but if the provider has an API,
you can use a :doc:`custom file storage backend </howto/custom-file-storage>`
to integrate the CDN with your Django project. If you've written or are using a
3rd party custom storage backend, you can tell :djadmin:`collectstatic` to use
it by setting :setting:`STATICFILES_STORAGE` to the storage engine.
For example, if you've written an S3 storage backend in
``myproject.storage.S3Storage`` you could use it with::
STATICFILES_STORAGE = 'myproject.storage.S3Storage'
Once that's done, all you have to do is run :djadmin:`collectstatic` and your
static files would be pushed through your storage package up to S3. If you
later needed to switch to a different storage provider, you may only have to
change your :setting:`STATICFILES_STORAGE` setting.
For details on how you'd write one of these backends, see
:doc:`/howto/custom-file-storage`. There are 3rd party apps available that
provide storage backends for many common file storage APIs. A good starting
point is the `overview at djangopackages.org
<https://djangopackages.org/grids/g/storage-backends/>`_.
Learn more
==========
For complete details on all the settings, commands, template tags, and other
pieces included in :mod:`django.contrib.staticfiles`, see :doc:`the
staticfiles reference </ref/contrib/staticfiles>`.