Allow overriding ProductionStorage and ProductionS3Storage kwargs with a django settings value

cms/envs/common.py

@@ -935,6 +935,7 @@ PIPELINE = {
 }
 
 STATICFILES_STORAGE = 'openedx.core.storage.ProductionStorage'
+STATICFILES_STORAGE_KWARGS = {}
 
 # List of finder classes that know how to find static files in various locations.
 # Note: the pipeline finder is included to be able to discover optimized files

lms/envs/common.py

@@ -1548,6 +1548,7 @@ PIPELINE = {
 }
 
 STATICFILES_STORAGE = 'openedx.core.storage.ProductionStorage'
+STATICFILES_STORAGE_KWARGS = {}
 
 # List of finder classes that know how to find static files in various locations.
 # Note: the pipeline finder is included to be able to discover optimized files

openedx/core/storage.py

@@ -3,6 +3,7 @@ Django storage backends for Open edX.
 """
 
 
+from django.conf import settings
 from django.contrib.staticfiles.storage import StaticFilesStorage
 from django.core.files.storage import get_storage_class, FileSystemStorage
 from django.utils.deconstruct import deconstructible
@@ -51,7 +52,9 @@ class ProductionMixin(
     can be applied over an existing Storage.
     We use this version on production.
     """
-    pass
+    def __init__(self, *args, **kwargs):
+        kwargs.update(settings.STATICFILES_STORAGE_KWARGS.get(settings.STATICFILES_STORAGE, {}))
+        super(ProductionMixin, self).__init__(*args, **kwargs)
 
 
 class ProductionStorage(ProductionMixin, StaticFilesStorage):