Add support for AWS_S3_CUSTOM_DOMAIN in case you want to use CDN

Author: RadoRado

config/settings/files_and_storages.py

@@ -36,3 +36,8 @@
     AWS_DEFAULT_ACL = env("AWS_DEFAULT_ACL", default="private")
 
     AWS_PRESIGNED_EXPIRY = env.int("AWS_PRESIGNED_EXPIRY", default=10)  # seconds
+
+    _AWS_S3_CUSTOM_DOMAIN = env("AWS_S3_CUSTOM_DOMAIN", default="")
+
+    if _AWS_S3_CUSTOM_DOMAIN:
+        AWS_S3_CUSTOM_DOMAIN = _AWS_S3_CUSTOM_DOMAIN