Added options related to signed url creation to work with servcies that do not...

Added options related to signed url creation to work with servcies that do not support V4 of the signature.

config/gitlab.yml.example

@@ -155,6 +155,9 @@ production: &base
     #     aws_access_key_id: AWS_ACCESS_KEY_ID
     #     aws_secret_access_key: AWS_SECRET_ACCESS_KEY
     #     region: us-east-1
+    #     aws_signature_version: 4 # For creation of signed URLs. Set to 2 if provider does not support v4.
+    #     endpoint: 'https://s3.amazonaws.com' # default: nil - Usefull for S3 compliant services such as DigitalOcean Spaces
+
 
   ## Git LFS
   lfs:
@@ -192,6 +195,7 @@ production: &base
         provider: AWS
         aws_access_key_id: AWS_ACCESS_KEY_ID
         aws_secret_access_key: AWS_SECRET_ACCESS_KEY
+        aws_signature_version: 4 # For creation of signed URLs. Set to 2 if provider does not support v4.
         region: us-east-1
         # host: 'localhost' # default: s3.amazonaws.com
         # endpoint: 'http://127.0.0.1:9000' # default: nil