AWS::EC2::VPC - False-positive drift on EnableDnsHostnames and EnableDnsSupport when using Git Sync

[gautaz]

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Name of the resource

AWS::EC2::VPC

Resource Name

No response

Issue Description

EDIT (2024-09-28): The issue only occurs if Git Sync is used.

AWS is detecting a drift on a newly created VPC with EnableDnsHostnames and EnableDnsSupport set to true. The "Actual" output is missing both values.

Expected Behavior

No drift should be detected.

Observed Behavior

Here is the drift report:

This is inconsistent with what is displayed in the VPC details:

Test Cases

EDIT (2024-09-28): The following template only reproduces the issue if the deployment is done with Git Sync.

Here is an extract of the provided template:

AWSTemplateFormatVersion: '2010-09-09'
Description: stack template
Parameters:
  VpcCidrBlock:
    Type: String
Resources:
  VPC:
    Properties:
      CidrBlock: !Ref 'VpcCidrBlock'
      EnableDnsHostnames: true
      EnableDnsSupport: true
    Type: AWS::EC2::VPC

Other Details

No response