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feat(ec2): implement IPeer to PrefixList to be usable as a connection peer #33617

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@Tietew Tietew commented Feb 28, 2025

Issue # (if applicable)

Closes #33607.

Reason for this change

When we want to add a security group rule with PrefixList as a connection peer,
we should write redundant prefixList:

const pl = new ec2.PrefixList(this, 'PrefixList', { ... });
instance.connections.allowFrom(ec2.Peer.prefixList(pl.prefixListId), ec2.Port.XXX);

This PR allows us to write DRY:

const pl = new ec2.PrefixList(this, 'PrefixList', { ... });
instance.connections.allowFrom(pl, ec2.Port.XXX);

Description of changes

  • Modify the IPrefixList interface to extend IPeer
  • Implement the required IPeer methods in PrefixListBase

Describe any new or updated permissions being added

Nothing

Description of how you validated changes

Added unit tests and updated an integ test.

Checklist


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

@aws-cdk-automation aws-cdk-automation requested a review from a team February 28, 2025 02:02
@github-actions github-actions bot added effort/medium Medium work item – several days of effort feature-request A feature should be added or improved. p2 star-contributor [Pilot] contributed between 25-49 PRs to the CDK labels Feb 28, 2025
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codecov bot commented Feb 28, 2025

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.21%. Comparing base (6c882e0) to head (158f486).

Additional details and impacted files
@@           Coverage Diff           @@
##             main   #33617   +/-   ##
=======================================
  Coverage   82.21%   82.21%           
=======================================
  Files         119      119           
  Lines        6876     6876           
  Branches     1162     1162           
=======================================
  Hits         5653     5653           
  Misses       1120     1120           
  Partials      103      103           
Flag Coverage Δ
suite.unit 82.21% <ø> (ø)

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Components Coverage Δ
packages/aws-cdk ∅ <ø> (∅)
packages/aws-cdk-lib/core 82.21% <ø> (ø)

@aws-cdk-automation aws-cdk-automation added the pr/needs-community-review This PR needs a review from a Trusted Community Member or Core Team Member. label Feb 28, 2025
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AWS CodeBuild CI Report

  • CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
  • Commit ID: 158f486
  • Result: SUCCEEDED
  • Build Logs (available for 30 days)

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effort/medium Medium work item – several days of effort feature-request A feature should be added or improved. p2 pr/needs-community-review This PR needs a review from a Trusted Community Member or Core Team Member. star-contributor [Pilot] contributed between 25-49 PRs to the CDK
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ec2: implement IPeer to PrefixList
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