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chore(ec2): update vpc README with vpc lookup method #34544

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merged 2 commits into from
May 23, 2025
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chore(ec2): update vpc README with vpc lookup method #34544

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chore(ec2): update vpc README with vpc lookup method
GavinZZ May 23, 2025
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Merge branch 'main' into vpc-readme-update
mergify[bot] May 23, 2025
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8 changes: 8 additions & 0 deletions packages/aws-cdk-lib/aws-ec2/README.md
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Expand Up @@ -608,6 +608,14 @@ instance around:

[sharing VPCs between stacks](test/integ.share-vpcs.lit.ts)

> Note: If you encounter an error like "Delete canceled. Cannot delete export ..."
> when using a cross-stack reference to a VPC, it's likely due to CloudFormation
> export/import constraints. In such cases, it's safer to use Vpc.fromLookup()
> in the consuming stack instead of directly referencing the VPC object, more details
> is provided in [Importing an existing VPC](#importing-an-existing-vpc). This
> avoids creating CloudFormation exports and gives more flexibility, especially
> when stacks need to be deleted or updated independently.

### Importing an existing VPC

If your VPC is created outside your CDK app, you can use `Vpc.fromLookup()`.
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