aws-actions/configure-aws-credentials
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Revert "chore: document container credentials provider support (and delete transitive tags in AssumeRoleWithWebIdentity) (#1780)"

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This reverts commit 77cd089899.
This commit is contained in:
Tom Keller 2026-05-28 12:31:40 -07:00
commit b0d77b694c
4 changed files with 1 additions and 25 deletions
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11
README.md
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@ -168,7 +168,6 @@ detail.
| role-session-name | Defaults to "GitHubActions", but may be changed if required. | No |
| role-skip-session-tagging | Skips session tagging if set. | No |
| transitive-tag-keys | Define a list of transitive tag keys to pass when assuming a role. | No |
| custom-tags | Additional tags to apply to the assumed role session. Must be a JSON object provided as a string. Custom tags are not usable with OIDC or web identity token authentication. | No |
| inline-session-policy | You may further restrict the assumed role policy by defining an inline policy here. | No |
| managed-session-policies | You may further restrict the assumed role policy by specifying a managed policy here. | No |
| output-credentials | When set, outputs fetched credentials as action step output. (Outputs aws-access-key-id, aws-secret-access-key, aws-session-token, aws-account-id, authenticated-arn, and aws-expiration). Defaults to false. | No |
@ -181,8 +180,6 @@ detail.
| allowed-account-ids | A comma-delimited list of expected AWS account IDs. The action will fail if we receive credentials for the wrong account. | No |
| force-skip-oidc | When set, the action will skip using GitHub OIDC provider even if the id-token permission is set. | No |
| action-timeout-s | Global timeout for the action in seconds. If set to a value greater than 0, the action will fail if it takes longer than this time to complete. | No |
| no-proxy | Hosts to skip for the proxy configuration. | No |
| sts-endpoint | Custom STS endpoint URL. Use this to point to an STS-compatible API (e.g. MinIO, LocalStack) instead of the default AWS STS endpoint for the region. | No |
</details>
@ -620,14 +617,6 @@ For further information on OIDC and GitHub Actions, please see:
- [GitHub docs: Configuring OpenID Connect in Amazon Web Services](https://docs.github.com/en/actions/deployment/security-hardening-your-deployments/configuring-openid-connect-in-amazon-web-services)
- [GitHub changelog: GitHub Actions: Secure cloud deployments with OpenID Connect](https://github.blog/changelog/2021-10-27-github-actions-secure-cloud-deployments-with-openid-connect/)
## Running in AWS Containers
To run this action using self-hosted action runners on AWS Containers such as
Codebuild or EKS, you may need to set `role-chaining: true`.
If you are using EKS and encountering an error related to the packed size of
session tags, set `role-skip-session-tagging: true`.
## Compatibility with non-GitHub Actions environments
This action has been sucessfully tested with

2
action.yml
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@ -34,7 +34,7 @@ inputs:
description: Use the web identity token file from the provided file system path in order to assume an IAM role using a web identity, e.g. from within an Amazon EKS worker node.
required: false
role-chaining:
description: Use existing credentials from the environment to assume a new role, rather than providing credentials as input. This is sometimes useful when running on a self-hosted runner with container-sourced credentials.
description: Use existing credentials from the environment to assume a new role, rather than providing credentials as input.
required: false
audience:
description: The audience to use for the OIDC provider

1
src/assumeRole.ts
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@ -42,7 +42,6 @@ async function assumeRoleWithWebIdentityTokenFile(
core.info('Assuming role with web identity token file');
try {
delete params.Tags;
delete params.TransitiveTagKeys;
const creds = await client.send(
new AssumeRoleWithWebIdentityCommand({
...params,

12
test/index.test.ts
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@ -202,18 +202,6 @@ describe('Configure AWS Credentials', {}, () => {
expect(core.setOutput).toHaveBeenCalledTimes(2);
expect(core.setFailed).not.toHaveBeenCalled();
});
it('does not send Tags or TransitiveTagKeys to AssumeRoleWithWebIdentity', async () => {
// AssumeRoleWithWebIdentity reads session tags from JWT claims, not the request.
// Both fields must be stripped before the STS call.
vi.mocked(core.getMultilineInput).mockImplementation((name: string) => {
if (name === 'transitive-tag-keys') return ['Repository'];
return [];
});
await run();
const callInput = mockedSTSClient.commandCalls(AssumeRoleWithWebIdentityCommand)[0].args[0].input;
expect(callInput.Tags).toBeUndefined();
expect(callInput.TransitiveTagKeys).toBeUndefined();
});
});
describe('Assume existing role', {}, () => {