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fix(iam): add defaultPolicyName to prevent policies overwriting each other in multi-stack deployments #20705

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merged 7 commits into from
Jun 15, 2022

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@comcalvi comcalvi commented Jun 10, 2022

This adds a prop, defaultPolicyName, that can be specified for imported roles. If the same role is imported in at least two stacks, and both of them create grant permissions to that role, the permissions granted in whichever stack was deployed last will overwrite the permissions granted by all others. Specifying this option allows users to specify different policy names across different stacks, which will prevent this overwrite issue.

Closes #16074.


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@github-actions github-actions bot added the p2 label Jun 10, 2022
@aws-cdk-automation aws-cdk-automation requested a review from a team June 10, 2022 23:51
@mergify mergify bot added the contribution/core This is a PR that came from AWS. label Jun 10, 2022
@github-actions github-actions bot added bug This issue is a bug. effort/medium Medium work item – several days of effort p1 and removed p2 labels Jun 11, 2022
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I think we should add this to fromRoleName as well. I'm not sure if there is a reason why fromRoleName doesn't currently take the same options as fromRoleArn, but it seems like it should since it is essentially the same.

@comcalvi comcalvi requested a review from corymhall June 13, 2022 21:17
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Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

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@mergify mergify bot merged commit 703e62e into aws:main Jun 15, 2022
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daschaa pushed a commit to daschaa/aws-cdk that referenced this pull request Jul 9, 2022
…h other in multi-stack deployments (aws#20705)

This adds a prop, `defaultPolicyName`, that can be specified for imported roles. If the same role is imported in at least two stacks, and both of them create grant permissions to that role, the permissions granted in whichever stack was deployed last will overwrite the permissions granted by all others. Specifying this option allows users to specify different policy names across different stacks, which will prevent this overwrite issue.

Closes aws#16074.

----

### All Submissions:

* [x] Have you followed the guidelines in our [Contributing guide?](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md)

### Adding new Unconventional Dependencies:

* [ ] This PR adds new unconventional dependencies following the process described [here](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md/#adding-new-unconventional-dependencies)

### New Features

* [ ] Have you added the new feature to an [integration test](https://github.com/aws/aws-cdk/blob/main/INTEGRATION_TESTS.md)?
	* [ ] Did you use `yarn integ` to deploy the infrastructure and generate the snapshot (i.e. `yarn integ` without `--dry-run`)?

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*
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(iam): policies created with grant interface in different stacks have the same name and overwrite each other
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