ecrpublic: add ephemeral aws_ecrpublic_authorization_token resource

[kimor79]

Fixes #45735 (based on #44949)

Terraform (1.10) supports referencing ephemeral resource attributes directly in providers. Having an ephemeral variant available of aws_ecrpublic_authorization_token would greatly improve the security posture of Terraform users working with public Amazon ECR as the temporary obtained auth is no longer persisted to the state.

ephemeral "aws_ecrpublic_authorization_token" "token" {}

resource "helm_release" "this" {
  # ...
  repository_password = ephemeral.aws_ecrpublic_authorization_token.token.password
  repository_username = ephemeral.aws_ecrpublic_authorization_token.token.user_name
}

[github-actions]

Community Guidelines

This comment is added to every new Pull Request to provide quick reference to how the Terraform AWS Provider is maintained. Please review the information below, and thank you for contributing to the community that keeps the provider thriving! 🚀

Voting for Prioritization

• Please vote on this Pull Request by adding a 👍 reaction to the original post to help the community and maintainers prioritize it.
• Please see our prioritization guide for additional information on how the maintainers handle prioritization.
• Please do not leave +1 or other comments that do not add relevant new information or questions; they generate extra noise for others following the Pull Request and do not help prioritize the request.

Pull Request Authors

• Review the contribution guide relating to the type of change you are making to ensure all of the necessary steps have been taken.
• Whether or not the branch has been rebased will not impact prioritization, but doing so is always a welcome surprise.

[github-actions]

✅ Thank you for correcting the previously detected issues! The maintainers appreciate your efforts to make the review process as smooth as possible.

[johnsonaj]

LGTM 🚀

% AWS_DEFAULT_REGION=us-east-1 make testacc PKG=ecrpublic TESTARGS='-run=TestAccECRPublicAuthorizationTokenEphemeral_'

make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
make: Running acceptance tests on branch: 🌿 f-aws_ecrpublic_authorization_token 🌿...
TF_ACC=1 go1.25.6 test ./internal/service/ecrpublic/... -v -count 1 -parallel 20  -run=TestAccECRPublicAuthorizationTokenEphemeral_ -timeout 360m -vet=off
2026/01/30 14:24:58 Creating Terraform AWS Provider (SDKv2-style)...
2026/01/30 14:24:58 Initializing Terraform AWS Provider (SDKv2-style)...
=== RUN   TestAccECRPublicAuthorizationTokenEphemeral_basic
=== PAUSE TestAccECRPublicAuthorizationTokenEphemeral_basic
=== CONT  TestAccECRPublicAuthorizationTokenEphemeral_basic
--- PASS: TestAccECRPublicAuthorizationTokenEphemeral_basic (10.13s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/ecrpublic	17.675s

[YakDriver]

LGTM 🎉

[johnsonaj]

@kimor79 thank you for the contribution! 🎉

[github-actions]

Warning

This Issue has been closed, meaning that any additional comments are much easier for the maintainers to miss. Please assume that the maintainers will not see them.

Ongoing conversations amongst community members are welcome, however, the issue will be locked after 30 days. Moving conversations to another venue, such as the AWS Provider forum, is recommended. If you have additional concerns, please open a new issue, referencing this one where needed.

[github-actions]

This functionality has been released in v6.31.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

I'm going to lock this pull request because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems related to this change, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.