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fix(core): child stack assembly metadata is duplidated on parent#4540

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benisrae/fix-child-metadata
Oct 17, 2019
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fix(core): child stack assembly metadata is duplidated on parent#4540
mergify[bot] merged 3 commits intomasterfrom
benisrae/fix-child-metadata

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@eladb eladb commented Oct 16, 2019

When synthesizes the metadata section of a stack in the cloud assembly
manifest, we traverse the tree below the stack and collect the metadata
associated with all nodes in this tree. If this tree has a child stack,
we don't need to collect the metadata from it's node, because they would
appear in the metadata of that child stack.

Metadata annotated on nested stack nodes will be recorded by the
first non-nested stack parent.

Specifically this bug caused an issue when the child stack used assets.
Currently assets are reported through assembly metadata on the stack,
and they would be reported both on the child and on the parent (although
the CloudFormation parameters of the assets would not appear on the parent).
This resulted in a CloudFormation error that reads:

ValidationError: Parameter values specified for a template which does not require them.

Therefore this fixes #2900


By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

When synthesizes the metadata section of a stack in the cloud assembly
manifest, we traverse the tree below the stack and collect the metadata
associated with all nodes in this tree. If this tree has a child stack,
we don't need to collect the metadata from it's node, because they would
appear in the metadata of that child stack.

Metadata annotated on nested stack nodes will be recorded by the
first non-nested stack parent.

Specifically this bug caused an issue when the child stack used assets.
Currently assets are reported through assembly metadata on the stack,
and they would be reported both on the child and on the parent (although
the CloudFormation parameters of the assets would not appear on the parent).
This resulted in a CloudFormation error that reads:

    ValidationError: Parameter values specified for a template which does not require them.

Therefore this fixes #2900
@eladb eladb self-assigned this Oct 16, 2019
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mergify bot commented Oct 16, 2019

Thanks so much for taking the time to contribute to the AWS CDK ❤️

We will shortly assign someone to review this pull request and help get it
merged. In the meantime, please take a minute to make sure you follow this
checklist
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  • PR title type(scope): text
    • type: fix, feat, refactor go into CHANGELOG, chore is hidden
    • scope: name of module without aws- or cdk- prefix or postfix (e.g. s3 instead of aws-s3-deployment)
    • text: use all lower-case, do not end with a period, do not include issue refs
  • PR Description
    • Rationale: describe rationale of change and approach taken
    • Issues: indicate issues fixed via: fixes #xxx or closes #xxx
    • Breaking?: last paragraph: BREAKING CHANGE: <describe what changed + link for details>
  • Testing
    • Unit test added. Prefer to add a new test rather than modify existing tests
    • CLI or init templates change? Re-run/add CLI integration tests
  • Documentation
    • README: update module README to describe new features
    • API docs: public APIs must be documented. Copy from official AWS docs when possible
    • Design: for significant features, follow design process

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mergify bot commented Oct 17, 2019

Thank you for contributing! Your pull request is now being automatically merged.

@mergify mergify bot merged commit eeb5ae9 into master Oct 17, 2019
@mergify mergify bot deleted the benisrae/fix-child-metadata branch October 17, 2019 06:06
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ValidationError: Parameter values specified when using DynamoDB Global module

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