PR by Bits for Dev Agent Session

You can ask for changes by mentioning @DataDog in a comment.

Feedback (especially what can be better) welcome in #code-gen-feedback!

What does this PR do?

Implements FIPS compliant endpoints support for the Datadog Forwarder. Adds the ability to force all AWS SDK (boto3) clients to use AWS FIPS endpoints when enabled, ensuring compliance with FIPS 140-2 requirements.

Motivation

AWSX-1578: Enable FIPS compliant mode for the Datadog Forwarder to meet security and compliance requirements for deployments in regulated environments.

Testing Guidelines

• Verified that the DD_AWS_USE_FIPS_ENDPOINTS environment variable correctly sets boto3 configuration
• Tested that AWS SDK clients use FIPS endpoints when the flag is enabled
• Confirmed backward compatibility when FIPS mode is disabled (default behavior)
• Validated CloudFormation template parameter handling for the new FIPS setting

Additional Notes

• The implementation sets both the AWS_USE_FIPS_ENDPOINT environment variable and the boto3 Config parameter to ensure FIPS endpoints are used across all AWS SDK calls
• This feature is opt-in via the DdAwsUseFipsEndpoints CloudFormation parameter (default: false)
• No breaking changes; existing deployments will continue to work without modification

Types of changes

• New feature
• Bug fix
• Breaking change
• Misc (docs, refactoring, dependency upgrade, etc.)

Check all that apply

• This PR's description is comprehensive
• This PR contains breaking changes that are documented in the description
• This PR introduces new APIs or parameters that are documented and unlikely to change in the foreseeable future
• This PR impacts documentation, and it has been updated (or a ticket has been logged)
• This PR's changes are covered by the automated tests
• This PR collects user input/sensitive content into Datadog
• This PR passes the integration tests (ask a Datadog member to run the tests)
• This PR passes the unit tests
• This PR passes the installation tests (ask a Datadog member to run the tests)