Settings
Note
The ServeStaticMiddleware
class can take the same configuration options as the ServeStatic
base class, but rather than accepting keyword arguments to its constructor it uses Django settings. The setting names are just the keyword arguments upper-cased with a SERVESTATIC_
prefix.
SERVESTATIC_ROOT
¶
Default: None
Absolute path to a directory of files which will be served at the root of your application (ignored if not set).
Don't use this for the bulk of your static files because you won't benefit from cache versioning, but it can be convenient for files like robots.txt
or favicon.ico
which you want to serve at a specific URL.
SERVESTATIC_AUTOREFRESH
¶
Default: settings.py:DEBUG
Recheck the filesystem to see if any files have changed before responding. This is designed to be used in development where it can be convenient to pick up changes to static files without restarting the server. For both performance and security reasons, this setting should not be used in production.
SERVESTATIC_USE_MANIFEST
¶
Default: not settings.py:DEBUG and isinstance(staticfiles_storage, ManifestStaticFilesStorage)
Find and serve files using Django's manifest file.
This is the most efficient way to determine what files are available, but it requires that you are using a manifest-compatible storage backend.
When using ServeStatic's CompressedManifestStaticFilesStorage
storage backend, ServeStatic will no longer need to call os.stat
on each file during startup.
SERVESTATIC_USE_FINDERS
¶
Default: settings.py:DEBUG
Find and serve files using Django's finders
API.
It's possible to use this setting in production, but be mindful of the settings.py:STATICFILES_DIRS
and settings.py:STATICFILE_FINDERS
settings. By default, the finders API only searches the 'static'
directory in each app, which are not the copies post-processed by ServeStatic.
Note that STATICFILES_DIRS
cannot equal STATIC_ROOT
while running the collectstatic
management command.
SERVESTATIC_MAX_AGE
¶
Default: 60 if not settings.py:DEBUG else 0
Time (in seconds) for which browsers and proxies should cache non-versioned files.
Versioned files (i.e. files which have been given a unique name like base.a4ef2389.css
by including a hash of their contents in the name) are detected automatically and set to be cached forever.
The default is chosen to be short enough not to cause problems with stale versions but long enough that, if you're running ServeStatic
behind a CDN, the CDN will still take the majority of the strain during times of heavy load.
Set to None
to disable setting any Cache-Control
header on non-versioned files.
SERVESTATIC_INDEX_FILE
¶
Default: False
If True
enable index file serving. If set to a non-empty string, enable index files and use that string as the index file name.
SERVESTATIC_MIMETYPES
¶
Default: None
A dictionary mapping file extensions (lowercase) to the mimetype for that extension. For example: :
{ ".foo": "application/x-foo" }
Note that ServeStatic
ships with its own default set of mimetypes and does not use the system-supplied ones (e.g. /etc/mime.types
). This ensures that it behaves consistently regardless of the environment in which it's run. View the defaults in ServeStatic's media_types.py
file.
In addition to file extensions, mimetypes can be specified by supplying the entire filename, for example: :
{ "some-special-file": "application/x-custom-type" }
SERVESTATIC_CHARSET
¶
Default: 'utf-8'
Charset to add as part of the Content-Type
header for all files whose mimetype allows a charset.
SERVESTATIC_ALLOW_ALL_ORIGINS
¶
Default: True
Toggles whether to send an Access-Control-Allow-Origin: *
header for all static files.
This allows cross-origin requests for static files which means your static files will continue to work as expected even if they are served via a CDN and therefore on a different domain. Without this your static files will mostly work, but you may have problems with fonts loading in Firefox, or accessing images in canvas elements, or other mysterious things.
The W3C explicitly state that this behaviour is safe for publicly accessible files.
SERVESTATIC_SKIP_COMPRESS_EXTENSIONS
¶
Default: ('jpg', 'jpeg', 'png', 'gif', 'webp','zip', 'gz', 'tgz', 'bz2', 'tbz', 'xz', 'br', 'swf', 'flv', 'woff', 'woff2')
File extensions to skip when compressing.
Because the compression process will only create compressed files where this results in an actual size saving, it would be safe to leave this list empty and attempt to compress all files. However, for files which we're confident won't benefit from compression, it speeds up the process if we just skip over them.
SERVESTATIC_ADD_HEADERS_FUNCTION
¶
Default: None
Reference to a function which is passed the headers object for each static file, allowing it to modify them.
The function should not return anything; changes should be made by modifying the headers dictionary directly.
For example:
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SERVESTATIC_IMMUTABLE_FILE_TEST
¶
Default: See immutable_file_test
in source
Reference to function, or string.
If a reference to a function, this is passed the path and URL for each static file and should return whether that file is immutable, i.e. guaranteed not to change, and so can be safely cached forever. The default is designed to work with Django's ManifestStaticFilesStorage
backend, and any derivatives of that, so you should only need to change this if you are using a different system for versioning your static files.
If a string, this is treated as a regular expression and each file's URL is matched against it.
Example:
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SERVESTATIC_STATIC_PREFIX
¶
Default: settings.py:STATIC_URL
The URL prefix under which static files will be served.
If this setting is unset, this value will automatically determined by analysing your STATIC_URL
setting. For example, if STATIC_URL = 'https://example.com/static/'
then SERVESTATIC_STATIC_PREFIX
will be /static/
.
Note that FORCE_SCRIPT_NAME
is also taken into account when automatically determining this value. For example, if FORCE_SCRIPT_NAME = 'subdir/'
and STATIC_URL = 'subdir/static/'
then SERVESTATIC_STATIC_PREFIX
will be /static/
.
If your deployment is more complicated than this (for instance, if you are using a CDN which is doing path rewriting) then you may need to configure this value directly.
SERVESTATIC_KEEP_ONLY_HASHED_FILES
¶
Default: False
Stores only files with hashed names in STATIC_ROOT
.
By default, Django's hashed static files system creates two copies of each file in STATIC_ROOT
: one using the original name, e.g. app.js
, and one using the hashed name, e.g. app.db8f2edc0c8a.js
. If ServeStatic
's compression backend is being used this will create another two copies of each of these files (using Gzip and Brotli compression) resulting in six output files for each input file.
In some deployment scenarios it can be important to reduce the size of the build artifact as much as possible. This setting removes the "unhashed" version of the file (which should be not be referenced in any case) which should reduce the space required for static files by half.
This setting is only effective if the ServeStatic
storage backend is being used.
SERVESTATIC_MANIFEST_STRICT
¶
Default: True
Set to False
to prevent Django throwing an error if you reference a static file which doesn't exist in the manifest. Note, if the static file does not exist, it will still throw an error.
This works by setting the manifest_strict
option on the underlying Django storage instance, as described in the Django documentation:
This setting is only effective if the ServeStatic
storage backend is being used.
Note
If a file isn't found in the staticfiles.json
manifest at runtime, a ValueError
is raised. This behavior can be disabled by subclassing ManifestStaticFilesStorage
and setting the manifest_strict
attribute to False
-- nonexistent paths will remain unchanged.