AWS CLI does not propagate session tags through profiles due to lack of TransitiveTagKeys support

[matpompili]

Describe the feature

Adding an option to the [profile ...] section of the config file, that allows the use of transitive tags during assume role chains.

[profile sso-user]
sso_session = my-sso-session
source_profile = sso-user-access
role_arn = arn:aws:iam::123456789012:role/SSOUserRole
region = us-east-1
transitive_tags = my_transitive_tag # <- new option

Use Case

When calling any command in the CLI with the --profile option, the CLI automatically runs an assume_role chain to get credentials for the target profile.

To enable the use of ABAC policies via the CLI, one needs to be able to specify what tags need to be carried through the assume role chain.

Proposed Solution

No response

Other Information

No response

Acknowledgements

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

CLI version used

aws-cli/2.17.24 Python

Environment details (OS name and version, etc.)

3.11.9 Darwin/22.6.0 source/arm64

[matpompili]

Somewhat connected to #6692, I think both features could be addressed by the same PR.

[tim-finnigan]

Thanks for reaching out. Requests for new config options/environment variables will need to be reviewed at a cross-SDK level since AWS SDKs, in addition to the CLI, use these configurations.

This does seem closely related to #6692 as you mentioned. We might want to consolidate these for tracking. Wouldn't adding a configuration option for session tags meet the use case described here? Linking some other related docs for reference:

• https://docs.aws.amazon.com/IAM/latest/UserGuide/id_session-tags.html
• https://docs.aws.amazon.com/IAM/latest/UserGuide/tutorial_abac-saml.html

[matpompili]

I am not sure setting a SessionTag only would work in my case, as I need to enable transitive tags for ${aws:PrincipalTag/user_group}, which is set using IdP information by the AssumeRoleWithWebIdentity, not directly by setting a tag value in the config file.

https://docs.aws.amazon.com/IAM/latest/UserGuide/access_iam-tags.html#access_iam-tags_control-principals