AWS CLI behavior compatibility mode

[kuhe]

Describe the feature

@otaviomacedo has suggested an AWS CLI compatibility mode for the AWS SDK that could take the form of a credentials provider.

The goal is to remove the burden of making the SDK behave like the CLI from the customer.

Use Case

AWS CDK and other customers of the AWS SDK for JavaScript (v3) can make use of this compatibility mode e.g. when writing CLI applications in JavaScript. In such CLI applications, the credential resolution behavior of the AWS SDK should be as close as possible to that of the AWS CLI for user intuitiveness.

Proposed Solution

The exact API is not yet determined, but it will likely involve a credentials provider.

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

SDK version used

latest

Environment details (OS name and version, etc.)

n/a

[kuhe]

for reference, the AWS CLI order: https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-authentication.html#cli-chap-authentication-precedence

[kuhe]

• allow setting a default region in the provider interface, i.e. not only via AWS_DEFAULT_REGION.