docs guide/configuration.rst: use_dualstack_endpoint only says S3

[ppena-LiveData]

Describe the issue

The documentation in docs/source/guide/configuration.rst for use_dualstack_endpoint says this:

use_dualstack_endpoint: Specifies whether to direct all Amazon S3 requests to the dual IPv4/IPv6 endpoint for the configured Region.

But there are other AWS Services that supply dual stack endpoints. Please correct the documentation and direct the user to other documentation where they can learn more, e.g. these:

• https://docs.aws.amazon.com/general/latest/gr/rande.html#dual-stack-endpoints
• https://docs.aws.amazon.com/vpc/latest/userguide/aws-ipv6-support.html

Links

https://github.com/boto/boto3/blob/28fc5bb15bc8c3abd59810290bf04912851f1f55/docs/source/guide/configuration.rst?plain=1#L399C1-L400C73

[RyanFitzSimmonsAK]

Hi @ppena-LiveData, thanks for reaching out. In this case, use_dualstack_endpoint actually is an S3-specific configuration option. From the documentation you referenced,

The s3 settings are nested configuration values that require special formatting in the AWS configuration file. If the values are set by the AWS CLI or programmatically by an SDK, the formatting is handled automatically. If you set them manually by editing the AWS configuration file, the following is the required format. Notice the indentation of each value.

If you wanted to use this option, it'd look something like this.

[default]
region = us-west-2
output = json
s3 = 
	use_dualstack_endpoint = True

For other services, you're intended to specify a dualstack endpoint with --endpoint-url. Please let me know if you have any follow-up questions.