ARSN-26 interrogate the default region for getBucketLocation

lib/storage/data/external/AwsClient.js

@@ -30,6 +30,9 @@ class AwsClient {
     }
 
     setup(cb) {
+        // NOTE: to get the bucket location we interrogate the default
+        // region (us-east-1) and not the bucket's region (ref: ARTESCA-2141)
+        this._client.config.update({ region: 'us-east-1' });
         // this request implicitly updates the endpoint for the location
         // the following code explcitly sets it to avoid surprises
         this._client.getBucketLocation({ Bucket: this._awsBucketName },
@@ -48,6 +51,8 @@ class AwsClient {
             } else if (res) {
                 region = res.LocationConstraint;
             }
+            this._client.config.update({ region });
+
             const isAWS = this._s3Params.endpoint.endsWith('amazonaws.com');
             if (region && isAWS) {
                 const endpoint = `s3.${region}.amazonaws.com`;