Merge pull request #455 from skriss/remove-aws-region

AWS: remove region requirement from config for backupStorageProvider

docs/aws-config.md

@@ -139,7 +139,7 @@ Specify the following values in the example files:
 
 * In `examples/aws/00-ark-config.yaml`:
 
-  * Replace `<YOUR_BUCKET>` and `<YOUR_REGION>`. See the [Config definition][6] for details.
+  * Replace `<YOUR_BUCKET>` and `<YOUR_REGION>` (for S3, region is optional and will be queried from the AWS S3 API if not provided). See the [Config definition][6] for details.
 
 * (Optional) If you run the nginx example, in file `examples/nginx-app/with-pv.yaml`:
 

docs/config-definition.md

@@ -67,7 +67,7 @@ The configurable parameters are as follows:
 
 | Key | Type | Default | Meaning |
 | --- | --- | --- | --- |
-| `region` | string | Required Field | *Example*: "us-east-1"<br><br>See [AWS documentation][3] for the full list. |
+| `region` | string | Empty | *Example*: "us-east-1"<br><br>See [AWS documentation][3] for the full list.<br><br>Queried from the AWS S3 API if not provided. |
 | `s3ForcePathStyle` | bool | `false` | Set this to `true` if you are using a local storage service like Minio. |
 | `s3Url` | string | Required field for non-AWS-hosted storage| *Example*: http://minio:9000<br><br>You can specify the AWS S3 URL here for explicitness, but Ark can already generate it from `region`, and `bucket`. This field is primarily for local storage services like Minio.|
 | `kmsKeyId` | string | Empty | *Example*: "502b409c-4da1-419f-a16e-eif453b3i49f" or "alias/`<KMS-Key-Alias-Name>`"<br><br>Specify an [AWS KMS key][10] id or alias to enable encryption of the backups stored in S3. Only works with AWS S3 and may require explicitly granting key usage rights.|