region

The stack's AWS region, such as ap-south-1. For more information about Amazon regions, see Regions and Endpoints.

In the AWS CLI, this API maps to the --stack-region parameter. If the --stack-region parameter and the AWS CLI common parameter --region are set to the same value, the stack uses a regional endpoint. If the --stack-region parameter is not set, but the AWS CLI --region parameter is, this also results in a stack with a regional endpoint. However, if the --region parameter is set to us-east-1, and the --stack-region parameter is set to one of the following, then the stack uses a legacy or classic region: us-west-1, us-west-2, sa-east-1, eu-central-1, eu-west-1, ap-northeast-1, ap-southeast-1, ap-southeast-2. In this case, the actual API endpoint of the stack is in us-east-1. Only the preceding regions are supported as classic regions in the us-east-1 API endpoint. Because it is a best practice to choose the regional endpoint that is closest to where you manage AWS, we recommend that you use regional endpoints for new stacks. The AWS CLI common --region parameter always specifies a regional API endpoint; it cannot be used to specify a classic AWS OpsWorks Stacks region.