Two last modifications for the new region sa-east-1.

README.md

@@ -47,7 +47,7 @@ The plugin will automatically use the instance level security credentials (as of
 
 ### Region
 
-The `cloud.aws.region` can be set to a region and will automatically use the relevant settings for both `ec2` and `s3`. The available values are: `us-east` (`us-east-1`), `us-west` (`us-west-1`), `us-west-1`, `us-west-2` `ap-southeast` (`ap-southeast-1`), `ap-southeast-1`, `ap-southeast-2`, `ap-northeast` (`ap-northeast-1`) `eu-west` (`eu-west-1`).
+The `cloud.aws.region` can be set to a region and will automatically use the relevant settings for both `ec2` and `s3`. The available values are: `us-east` (`us-east-1`), `us-west` (`us-west-1`), `us-west-1`, `us-west-2` `ap-southeast` (`ap-southeast-1`), `ap-southeast-1`, `ap-southeast-2`, `ap-northeast` (`ap-northeast-1`) `eu-west` (`eu-west-1`), `sa-east` (`sa-east-1`).
 
 
 ## EC2 Discovery

src/main/java/org/elasticsearch/gateway/s3/S3Gateway.java

@@ -80,6 +80,10 @@ public S3Gateway(Settings settings, ThreadPool threadPool, ClusterService cluste
                     region = "EU";
                 } else if ("eu-west-1".equals(regionSetting.toLowerCase())) {
                     region = "EU";
+                } else if ("sa-east".equals(regionSetting.toLowerCase())) {
+                    region = "sa-east-1";
+                } else if ("sa-east-1".equals(regionSetting.toLowerCase())) {
+                    region = "sa-east-1";
                 }
             }
         }